Maintenance and care for Your Toyota Prius 4 Door Fourth Generation (2016-2022)

483  
Maintenance and care  
6
6-1. Maintenance and care  
Cleaning and protecting  
the vehicle exterior.......... 484  
Cleaning and protecting  
the vehicle interior........... 490  
6-2. Maintenance  
Maintenance  
requirements................... 493  
General maintenance........ 496  
Emission inspection and  
maintenance (I/M)  
programs......................... 499  
6-3. Do-it-yourself  
maintenance  
Do-it-yourself service  
precautions ..................... 500  
Hood ................................. 503  
Positioning a floor jack...... 505  
Engine compartment......... 506  
Tires.................................. 520  
Tire inflation pressure ....... 530  
Wheels.............................. 533  
Air conditioning filter.......... 536  
Cleaning the hybrid battery  
(traction battery) air intake  
vent and filter .................. 539  
Wiper insert  
replacement.................... 544  
Electronic key battery........ 548  
Checking and replacing  
fuses ............................... 551  
Headlight aim.................... 554  
Light bulbs......................... 556  
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484  
6-1. Maintenance and care  
Cleaning and protecting the vehicle exterior  
Perform the following to protect the vehicle and maintain it in  
prime condition:  
● Working from top to bottom, liberally apply water to the vehicle  
body, wheel wells and underside of the vehicle to remove any dirt  
and dust.  
● Wash the vehicle body using a sponge or soft cloth, such as a  
chamois.  
● For hard-to-remove marks, use car wash soap and rinse thoroughly  
with water.  
● Wipe away any water.  
● Wax the vehicle when the waterproof coating deteriorates.  
If water does not bead on a clean surface, apply wax when the vehicle  
body is cool.  
■Automatic car washes  
●Fold the mirrors before washing the vehicle. Start washing from the front of  
the vehicle. Make sure to extend the mirrors before driving.  
●Brushes used in automatic car washes may scratch the vehicle surface and  
harm your vehicle’s paint.  
●Rear spoiler may not be washable in some automatic car washes. There  
may also be an increased risk of damage to vehicle.  
■High pressure car washes  
As water may enter the cabin, do not bring the nozzle tip near the gaps  
around the doors or perimeter of the windows, or spray these areas continu-  
ously.  
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485  
6-1. Maintenance and care  
■Note for a smart key system  
If the door handle becomes wet while the electronic key is within the effective  
range, the door may lock and unlock repeatedly. In that case, follow the fol-  
lowing correction procedures to wash the vehicle:  
●Place the key in a position 6 ft. (2 m) or more separate from the vehicle  
while the vehicle is being washed. (Take care to ensure that the key is not  
stolen.)  
●Set the electronic key to battery-saving mode to disable the smart key sys-  
tem. (P. 194)  
■Aluminum wheels  
●Remove any dirt immediately by using a neutral detergent.  
●Wash detergent off with water immediately after use.  
●To protect the paint from damage, make sure to observe the following pre-  
cautions.  
• Do not use acidic, alkaline or abrasive detergent  
• Do not use hard brushes  
• Do not use detergent on the wheels when they are hot, such as after driv-  
ing or parking in hot weather  
■Bumpers  
Do not scrub with abrasive cleaners.  
■Front side windows water-repellent coating (if equipped)  
The following precautions can extend the effectiveness of the water-repellent  
coating.  
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●Remove any dirt, etc. from the front side windows regularly.  
●Do not allow dirt and dust to accumulate on the windows for a long period.  
Clean the windows with a soft, damp cloth as soon as possible.  
●Do not use wax or glass cleaners that contain abrasives when cleaning the  
windows.  
●Do not use any metallic objects to remove condensation build up.  
■Plated portions  
If dirt cannot be removed, clean the parts as follows:  
●Use a soft cloth dampened with an approximately 5% solution of neutral  
detergent and water to clean the dirt off.  
●Wipe the surface with a dry, soft cloth to remove any remaining moisture.  
●To remove oily deposits, use alcohol wet wipes or a similar product.  
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486  
6-1. Maintenance and care  
WARNING  
■When washing the vehicle  
Do not apply water to the inside of the engine compartment. Doing so may  
cause the electrical components etc. to catch fire.  
■When cleaning the windshield (vehicles with rain-sensing windshield  
wipers)  
Set the wiper switch to the off position.  
If the wiper switch is in the  
posi-  
Off  
tion, the wipers may operate unexpect-  
edly in the following situations, and may  
result in hands being caught or other  
serious injuries and cause damage to the  
wiper blades.  
●When the upper part of the windshield  
where the raindrop sensor is located is  
touched by hand  
●When a wet rag or similar is held close to the raindrop sensor  
●If something bumps against the windshield  
●If you directly touch the raindrop sensor body or if something bumps into  
the raindrop sensor  
■Precautions regarding the exhaust pipe  
Exhaust gasses cause the exhaust pipe to become quite hot.  
When washing the vehicle, be careful not to touch the pipe until it has  
cooled sufficiently, as touching a hot exhaust pipe can cause burns.  
■Precaution regarding the rear bumper with Blind Spot Monitor (if  
equipped)  
If the paint of the rear bumper is chipped or scratched, the system may mal-  
function. If this occurs, consult your Toyota dealer.  
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487  
6-1. Maintenance and care  
NOTICE  
■To prevent paint deterioration and corrosion on the body and compo-  
nents (aluminum wheels etc.)  
●Wash the vehicle immediately in the following cases:  
• After driving near the sea coast  
• After driving on salted roads  
• If coal tar or tree sap is present on the paint surface  
• If dead insects, insect droppings or bird droppings are present on the  
paint surface  
• After driving in an area contaminated with soot, oily smoke, mine dust,  
iron powder or chemical substances  
• If the vehicle becomes heavily soiled with dust or mud  
• If liquids such as benzene and gasoline are spilled on the paint surface  
●If the paint is chipped or scratched, have it repaired immediately.  
●To prevent the wheels from corroding, remove any dirt and store in a place  
with low humidity when storing the wheels.  
■To prevent damage to the windshield wiper arms  
When lifting the wiper arms away from the windshield pull the driver side  
wiper arm upward first, and repeat for the passenger’s side. When returning  
the wipers to their original position, do so from the passenger’s side first.  
■Cleaning the exterior lights  
●Wash carefully. Do not use organic substances or scrub with a hard brush.  
This may damage the surfaces of the lights.  
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●Do not apply wax to the surfaces of the lights.  
Wax may cause damage to the lenses.  
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488  
6-1. Maintenance and care  
NOTICE  
■Handling the decorative resin parts (for vehicles equipped with 17-  
inch wheels)  
●Make sure to observe the following when handling wheels equipped  
with decorative resin parts. Failure to observe these precautions may  
result in damage to the decorative resin parts or wheels.  
• Do not remove the decorative resin parts  
When decorative resin parts removal is necessary, contact your Toyota  
dealer.  
• Do not hold the tire by the decora-  
tive resin parts to lift up or carry the  
tire.  
●If there is rattling in the decorative resin parts, or strange sounds from  
the wheel area when driving, have your wheels inspected at your Toy-  
ota dealer.  
■When using an automatic car wash (vehicles with rain-sensing wind-  
shield wipers)  
Set the wiper switch to the off position.  
If the wiper switch is in the  
position, the wipers may operate and the  
wiper blades may be damaged.  
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489  
6-1. Maintenance and care  
NOTICE  
■When using a high pressure car wash  
●When washing the vehicle, do not let water of the high pressure washer hit  
directly or the vicinity of the camera. Due to the shock from the high pres-  
sure water, it is possible the device may not operate as normal.  
●Do not bring the nozzle tip close to boots (rubber or resin manufactured  
cover), connectors or the following parts. The parts may be damaged if  
they come into contact with high-pressure water.  
• Traction related parts  
• Steering parts  
• Suspension parts  
• Brake parts  
●Keep the cleaning nozzle at least 11.9 in. (30 cm) away from the vehicle  
body. Otherwise resin section, such as moldings and bumpers, may be  
deformed and damaged. Also, do not continuously hold the nozzle in the  
same place.  
●Do not spray the lower part of the windshield continuously.  
If water enters the air conditioning system intake located near the lower  
part of the windshield, the air conditioning system may not operate cor-  
rectly.  
■When raising the windshield wiper arms  
Make sure to hold the hook parts of the  
wiper arms to raise them.  
6
Hook parts  
Do not hold only the wiper blades when  
raising them, or it may cause deformation  
of the wiper blades.  
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490  
6-1. Maintenance and care  
Cleaning and protecting the vehicle interior  
The following procedures will help protect your vehicle’s interior  
and keep it in top condition:  
Protecting the vehicle interior  
● Remove dirt and dust using a vacuum cleaner. Wipe dirty surfaces  
with a cloth dampened with lukewarm water.  
● If dirt cannot be removed, wipe it off with a soft cloth dampened with  
neutral detergent diluted to approximately 1%.  
Wring out any excess water from the cloth and thoroughly wipe off  
remaining traces of detergent and water.  
Cleaning the leather areas  
● Remove dirt and dust using a vacuum cleaner.  
● Wipe off any excess dirt and dust with a soft cloth dampened with  
diluted detergent.  
Use a diluted water solution of approximately 5% neutral wool detergent.  
● Wring out any excess water from the cloth and thoroughly wipe off  
all remaining traces of detergent.  
● Wipe the surface with a dry, soft cloth to remove any remaining  
moisture. Allow the leather to dry in a shaded and ventilated area.  
Cleaning the synthetic leather areas  
● Remove dirt and dust using a vacuum cleaner.  
● Wipe it off with a soft cloth dampened with neutral detergent diluted  
to approximately 1%.  
● Wring out any excess water from the cloth and thoroughly wipe off  
remaining traces of detergent and water.  
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491  
6-1. Maintenance and care  
■Caring for leather areas  
Toyota recommends cleaning the interior of the vehicle at least twice a year to  
maintain the quality of the vehicle’s interior.  
■Shampooing the carpets  
There are several commercial foaming-type cleaners available. Use a sponge  
or brush to apply the foam. Rub in overlapping circles. Do not use water.  
Wipe dirty surfaces and let them dry. Excellent results are obtained by keep-  
ing the carpet as dry as possible.  
■Seat belts  
Clean with mild soap and lukewarm water using a cloth or sponge. Also  
check the belts periodically for excessive wear, fraying or cuts.  
WARNING  
■Water in the vehicle  
●Do not splash or spill liquid in the vehicle, such as on the floor, in the  
hybrid battery (traction battery) air intake vent, and in the luggage com-  
partment.  
Doing so may cause the hybrid battery (traction battery), electrical compo-  
nents, etc. to malfunction or catch fire.  
●Do not get any of the SRS components or wiring in the vehicle interior wet.  
(P. 38)  
An electrical malfunction may cause the airbags to deploy or not function  
properly, resulting in death or serious injury.  
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●Vehicles with wireless charger:  
Do not let the wireless charger (P. 465) get wet. Failure to do so may  
cause the charger to become hot and cause burns or could cause electric  
shock resulting in death or serious injury.  
■Cleaning the interior (especially instrument panel)  
Do not use polish wax or polish cleaner. The instrument panel may reflect  
off the windshield, obstructing the driver’s view and leading to an accident,  
resulting in death or serious injury.  
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492  
6-1. Maintenance and care  
NOTICE  
■Cleaning detergents  
●Do not use the following types of detergent, as they may discolor the vehi-  
cle interior or cause streaks or damage to painted surfaces:  
• Non-seat portions: Organic substances such as benzene or gasoline,  
alkaline or acidic solutions, dye, and bleach  
• Seats: Alkaline or acidic solutions, such as thinner, benzene, and alco-  
hol  
●Do not use polish wax or polish cleaner. The instrument panel’s or other  
interior part’s painted surface may be damaged.  
■Preventing damage to leather surfaces  
Observe the following precautions to avoid damage to and deterioration of  
leather surfaces:  
●Remove any dust or dirt from leather surfaces immediately.  
●Do not expose the vehicle to direct sunlight for extended periods of time.  
Park the vehicle in the shade, especially during summer.  
●Do not place items made of vinyl, plastic, or containing wax on the uphol-  
stery, as they may stick to the leather surface if the vehicle interior heats  
up significantly.  
■Water on the floor  
Do not wash the vehicle floor with water.  
Vehicle systems such as the audio system may be damaged if water comes  
into contact with electrical components such as the audio system above or  
under the floor of the vehicle. Water may also cause the body to rust.  
■When cleaning the inside of the windshield (vehicles with Toyota  
Safety Sense P)  
Do not allow glass cleaner to contact the lens. Also, do not touch the lens.  
(P. 286).  
■Cleaning the inside of the rear window  
●Do not use glass cleaner to clean the rear window, as this may cause  
damage to the rear window defogger heater wires. Use a cloth dampened  
with lukewarm water to gently wipe the window clean. Wipe the window in  
strokes running parallel to the heater wires.  
●Be careful not to scratch or damage the heater wires.  
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493  
6-2. Maintenance  
Maintenance requirements  
To ensure safe and economical driving, day-to-day care and reg-  
ular maintenance are essential. It is the owner’s responsibility to  
perform regular checks. Toyota recommends the following main-  
tenance:  
General maintenance  
General maintenance should be performed on a daily basis. This can  
be done by yourself or by a Toyota dealer.  
Scheduled maintenance  
Scheduled maintenance should be performed at specified intervals  
according to the maintenance schedule.  
For details about maintenance items and schedules, refer to the “Sched-  
uled Maintenance Guide” or “Owner’s Manual Supplement”.  
Do-it-yourself maintenance  
You can perform some maintenance procedures by yourself.  
Please be aware that do-it-yourself maintenance may affect warranty  
coverage.  
6
The use of Toyota repair manuals is recommended.  
For details about warranty coverage, refer to the separate “Owner’s War-  
ranty Information Booklet” or “Owner’s Manual Supplement”.  
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494  
6-2. Maintenance  
■Repair and replacement  
It is recommended that genuine Toyota parts be used for repairs to ensure  
performance of each system. If non-Toyota parts are used in replacement or if  
a repair shop other than a Toyota dealer performs repairs, confirm the war-  
ranty coverage.  
■Resetting the message indicating maintenance is required (U.S.A. only)  
After the required maintenance is preformed according to the maintenance  
schedule, please reset the message.  
To reset the message, follow the procedures described below:  
1
While the hybrid system is operating, switch the multi-information display to  
the  
screen. (P. 149)  
of the meter control switches, select “  
2
3
4
5
Press  
or  
(Vehicle  
Settings)”, and then press  
Press of the meter control switches, select “Maintenance Sys-  
tem”, and then press  
Press  
and then press  
.
or  
.
or  
of the meter control switches, select “Oil Maintenance”,  
.
Press  
.
or  
of the meter control switches, select “Yes”, and then press  
A message will be displayed when the  
reset procedure has been completed.  
■Allow inspection and repairs to be performed by a Toyota dealer  
●Toyota technicians are well-trained specialists and are kept up to date with  
the latest service information. They are well informed about the operation of  
all systems on your vehicle.  
●Keep a copy of the repair order. It proves that the maintenance that has  
been performed is under warranty coverage. If any problem should arise  
while your vehicle is under warranty, your Toyota dealer will promptly take  
care of it.  
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495  
6-2. Maintenance  
WARNING  
■If your vehicle is not properly maintained  
Improper maintenance could result in serious damage to the vehicle and  
possible serious injury or death.  
■Handling of the 12-volt battery  
●Engine exhaust, some of its constituents, and a wide variety of automobile  
components contain or emit chemicals known to the State of California to  
cause cancer and birth defects and other reproductive harm. Work in a  
well ventilated area.  
●Oils, fuels and fluids contained in vehicles as well as waste produced by  
component wear contain or emit chemicals known to the State of Califor-  
nia to cause cancer and birth defects or other reproductive harm. Avoid  
exposure and wash any affected area immediately.  
●12-volt battery posts, terminals and related accessories contain lead and  
lead compounds which are known to cause brain damage. Wash your  
hands after handling. (P. 512)  
6
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496  
6-2. Maintenance  
General maintenance  
Listed below are the general maintenance items that should be  
performed at the intervals specified in the “Owner’s Warranty  
Information Booklet” or “Owner’s Manual Supplement/Sched-  
uled Maintenance Guide”. It is recommended that any problem  
you notice should be brought to the attention of your Toyota  
dealer or qualified service shop for advice.  
Engine compartment  
Items  
12-volt battery  
Brake fluid  
Check points  
Check the connections.  
(P. 512)  
Is the brake fluid at the correct level?(P. 516)  
Engine/power  
unit coolant  
control Is the engine/power control unit coolant at the  
correct level?  
(P. 510)  
Engine oil  
Is the engine oil at the correct level? (P. 507)  
There should not be any fumes or strange  
sounds.  
Exhaust system  
The radiator and condenser should be free from  
Radiator/condenser  
Washer fluid  
foreign objects.  
(P. 512)  
Is there sufficient washer fluid?  
(P. 518)  
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497  
6-2. Maintenance  
Vehicle interior  
Items  
Check points  
• The accelerator pedal should move smoothly  
(without uneven pedal effort or catching).  
Accelerator pedal  
Hybrid  
transmission • When parked on a slope and the shift position  
“Park” mechanism  
is in P, is the vehicle securely stopped?  
• Does the brake pedal move smoothly?  
• Does the brake pedal have appropriate clear-  
Brake pedal  
ance from the floor?  
• Does the brake pedal have the correct  
amount of free play? (P. 659)  
(P. 659)  
• The vehicle should not pull to one side when  
the brakes are applied.  
• The brakes should work effectively.  
• The brake pedal should not feel spongy.  
• The brake pedal should not get too close to  
the floor when the brakes are applied.  
Brakes  
• Do the head restraints move smoothly and  
lock securely?  
Head restraints  
• Do the indicators and buzzers function prop-  
erly?  
Indicators/buzzers  
Lights  
6
• Do all the lights come on?  
• Does the parking brake pedal move  
smoothly?  
• When parked on a slope and the parking  
brake is on, is the vehicle securely stopped?  
Parking brake  
• Do the seat belts operate smoothly?  
• The seat belts should not be damaged.  
Seat belts  
Seats  
• Do the seat controls operate properly?  
• Does the steering wheel rotate smoothly?  
• Does the steering wheel have the correct  
amount of free play?  
Steering wheel  
• There should not be any strange sounds com-  
ing from the steering wheel.  
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498  
Vehicle exterior  
6-2. Maintenance  
Items  
Check points  
Doors  
• Do the doors operate smoothly?  
• Does the engine hood lock system work prop-  
erly?  
Engine hood  
Fluid leaks  
• There should not be any signs of fluid leakage  
after the vehicle has been parked.  
• Is the tire inflation pressure correct?  
• The tires should not be damaged or exces-  
sively worn.  
• Have the tires been rotated according to the  
maintenance schedule?  
Tires  
• The wheel nuts should not be loose.  
• The wiper blades should not show any signs  
of cracking, splitting, wear, contamination or  
deformation.  
• The wiper blades should clear the windshield/  
rear window without streaking or skipping.  
Windshield wipers/  
rear window wiper  
(if equipped)  
WARNING  
■If the hybrid system is operating  
Turn the hybrid system off and ensure that there is adequate ventilation  
before performing maintenance checks.  
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499  
6-2. Maintenance  
Emission inspection and maintenance (I/M)  
programs  
Some states have vehicle emission inspection programs which  
include OBD (On Board Diagnostics) checks. The OBD system  
monitors the operation of the emission control system.  
If the malfunction indicator lamp comes on  
The OBD system determines that a problem exists somewhere in the  
emission control system. Your vehicle may not pass the I/M test and  
may need to be repaired. Contact your Toyota dealer to service the  
vehicle.  
Your vehicle may not pass the I/M test in the following situations:  
● When the 12-volt battery is disconnected or discharged  
Readiness codes that are set during ordinary driving are erased.  
Also, depending on your driving habits, the readiness codes may  
not be completely set.  
● When the fuel tank cap is loose  
6
The malfunction indicator lamp comes on indicating a temporary  
malfunction and your vehicle may not pass the I/M test.  
When the malfunction indicator lamp still remains on after sev-  
eral driving trips  
The error code in the OBD system will not be cleared unless the vehi-  
cle is driven 40 or more times.  
If your vehicle does not pass the I/M test  
Contact your Toyota dealer to prepare the vehicle for re-testing.  
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500  
6-3. Do-it-yourself maintenance  
Do-it-yourself service precautions  
If you perform maintenance by yourself, be sure to follow the  
correct procedure as given in these sections.  
Items  
Parts and tools  
12-volt battery  
condition  
(P. 512)  
• Grease  
• Conventional wrench (for terminal clamp bolts)  
• SAE J1703 or FMVSS No.116 DOT 3 or SAE J1704  
or FMVSS No.116 DOT 4 brake fluid  
Brake fluid level  
(P. 516)  
• Rag or paper towel  
• Funnel (used only for adding brake fluid)  
• “Toyota Super Long Life Coolant” or a similar high  
quality ethylene glycol-based non-silicate, non-  
amine, non-nitrite and non-borate coolant with long-  
life hybrid organic acid technology  
Engine/power  
control unit cool-  
ant level  
For the U.S.A.:  
“Toyota Super Long Life Coolant” is pre-mixed with  
50% coolant and 50% deionized water.  
(P. 510)  
For Canada:  
“Toyota Super Long Life Coolant” is pre-mixed with  
55% coolant and 45% deionized water.  
• Funnel (used only for adding coolant)  
• “Toyota Genuine Motor Oil” or equivalent  
• Rag or paper towel  
Engine oil level  
(P. 507)  
• Funnel (used only for adding engine oil)  
• Fuse with same amperage rating as original  
Fuses (P. 551)  
Hybrid battery  
(traction battery)  
air intake vent  
(P. 539)  
• Vacuum cleaner, etc.  
• Phillips screwdriver  
• Bulb with same number and wattage rating as origi-  
nal  
Light bulbs  
(P. 556)  
• Phillips screwdriver  
• Flathead screwdriver  
• Wrench  
Radiator and con-  
denser (P. 512)  
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501  
6-3. Do-it-yourself maintenance  
Parts and tools  
Items  
Tire inflation  
pressure  
(P. 530)  
• Tire pressure gauge  
• Compressed air source  
• Water or washer fluid containing antifreeze (for win-  
ter use)  
Washer fluid  
(P. 518)  
• Funnel (used only for adding water or washer fluid)  
WARNING  
The engine compartment contains many mechanisms and fluids that may  
move suddenly, become hot, or become electrically energized. To avoid death  
or serious injury, observe the following precautions.  
■When working on the engine compartment  
●Make sure that the “Accessory”, “Ignition ON” or mileage display  
(P. 116) on the main display and the “READY” indicator are both off.  
●Keep hands, clothing and tools away from the moving fan.  
●Be careful not to touch the engine, power control unit, radiator, exhaust  
manifold, etc. right after driving as they may be hot. Oil and other fluids  
may also be hot.  
●Do not leave anything that may burn easily, such as paper and rags, in the  
engine compartment.  
●Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes  
6
are flammable.  
■When working near the electric cooling fans or radiator grille  
Be sure the power switch is off.  
With the power switch in ON mode, the electric cooling fans may automati-  
cally start to run if the air conditioning is on and/or the coolant temperature  
is high. (P. 512)  
■Safety glasses  
Wear safety glasses to prevent flying or falling material, fluid spray, etc.  
from getting in your eyes.  
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502  
6-3. Do-it-yourself maintenance  
NOTICE  
■If you remove the air cleaner filter  
Driving with the air cleaner filter removed may cause excessive engine wear  
due to dirt in the air.  
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503  
6-3. Do-it-yourself maintenance  
Hood  
Release the lock from the inside of the vehicle to open the hood.  
1
Pull the hood lock release lever.  
The hood will pop up slightly.  
2
Pull the auxiliary catch lever to  
the left and lift the hood.  
6
3
Hold the hood open by inserting  
the supporting rod into the slot.  
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504  
6-3. Do-it-yourself maintenance  
WARNING  
■When closing the hood  
When closing the hood, take extra care  
to prevent your fingers etc. from being  
caught.  
■Pre-driving check  
Check that the hood is fully closed and locked.  
If the hood is not locked properly, it may open while the vehicle is in motion  
and cause an accident, which may result in death or serious injury.  
■After installing the support rod into the slot  
Make sure the rod supports the hood securely from falling down on to your  
head or body.  
NOTICE  
■When closing the hood  
Be sure to return the supporting rod to its clip before closing the hood. Clos-  
ing the hood without returning the support rod properly could cause the  
hood to bend.  
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505  
6-3. Do-it-yourself maintenance  
Positioning a floor jack  
When using a floor jack, follow the instructions in the manual  
provided with the jack and perform the operation safely.  
When raising your vehicle with a floor jack, position the jack cor-  
rectly. Improper placement may damage your vehicle or cause  
injury.  
◆ Front  
◆ Rear  
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1
2
2WD models  
AWD models  
PRIUS_OM_OM47D44U_(U)  
506  
6-3. Do-it-yourself maintenance  
Engine compartment  
1
6
7
Engine coolant reservoir  
12-volt battery  
(P. 512)  
(P. 510)  
Power control unit coolant  
2
Fuse boxes  
Engine oil level dipstick  
(P. 507)  
(P. 551)  
reservoir  
Radiator  
(P. 510)  
3
8
9
(P. 512)  
(P. 512)  
Condenser  
4
5
Engine oil filler cap (P. 508)  
10  
11  
Electric cooling fans  
Brake fluid reservoir  
Washer fluid tank (P. 518)  
(P. 516)  
PRIUS_OM_OM47D44U_(U)  
507  
6-3. Do-it-yourself maintenance  
Engine oil  
With the engine at operating temperature and turned off, check the oil  
level on the dipstick.  
■ Checking the engine oil  
1
Park the vehicle on level ground. After warming up the engine  
and turning off the hybrid system, wait more than 5 minutes for  
the oil to drain back into the bottom of the engine.  
2
Holding a rag under the end,  
pull the dipstick out.  
3
Wipe the dipstick clean.  
4
Reinsert the dipstick fully.  
5
Holding a rag under the end, pull the dipstick out and check the  
oil level.  
6
1
2
3
Low  
Normal  
Excessive  
6
Wipe the dipstick and reinsert it fully.  
PRIUS_OM_OM47D44U_(U)  
508  
■ Adding engine oil  
6-3. Do-it-yourself maintenance  
If the oil level is below or near  
the low level mark, add engine  
oil of the same type as that  
already in the engine.  
Make sure to check the oil type and prepare the items needed  
before adding oil.  
Engine oil selection  
P. 656  
Oil quantity (Low Full)  
1.6 qt. (1.5 L, 1.3 Imp.qt.)  
Clean funnel  
Items  
1
Remove the oil filler cap by turning it counterclockwise.  
Add engine oil slowly, checking the dipstick.  
Install the oil filler cap by turning it clockwise.  
2
3
■Engine oil consumption  
A certain amount of engine oil will be consumed while driving. In the following  
situations, oil consumption may increase, and engine oil may need to be  
refilled in between oil maintenance intervals.  
●When the engine is new, for example directly after purchasing the vehicle or  
after replacing the engine  
●If low quality oil or oil of an inappropriate viscosity is used  
●When driving at high engine speeds or with a heavy load, or when driving  
while accelerating or decelerating frequently  
●When leaving the engine idling for a long time, or when driving frequently  
through heavy traffic  
PRIUS_OM_OM47D44U_(U)  
509  
6-3. Do-it-yourself maintenance  
WARNING  
■Used engine oil  
●Used engine oil contains potentially harmful contaminants which may  
cause skin disorders such as inflammation and skin cancer, so care  
should be taken to avoid prolonged and repeated contact. To remove used  
engine oil from your skin, wash thoroughly with soap and water.  
●Dispose of used oil and filters only in a safe and acceptable manner. Do  
not dispose of used oil and filters in household trash, in sewers or onto the  
ground. Call your Toyota dealer, service station or auto parts store for  
information concerning recycling or disposal.  
●Do not leave used engine oil within the reach of children.  
NOTICE  
■To prevent serious engine damage  
Check the oil level on a regular basis.  
■When replacing the engine oil  
●Be careful not to spill engine oil on the vehicle components.  
●Avoid overfilling, or the engine could be damaged.  
●Check the oil level on the dipstick every time you refill the vehicle.  
●Be sure the engine oil filler cap is properly tightened.  
6
PRIUS_OM_OM47D44U_(U)  
510  
Coolant  
6-3. Do-it-yourself maintenance  
The coolant level is satisfactory if it is between the “FULL” and “LOW”  
lines on the reservoir when the hybrid system is cold.  
■ Engine coolant reservoir  
1
2
3
Reservoir cap  
“FULL” line  
“LOW” line  
If the level is on or below the  
“LOW” line, add coolant up to  
the “FULL” line. (P. 644)  
■ Power control unit coolant reservoir  
1
2
3
Reservoir cap  
“FULL” line  
“LOW” line  
If the level is on or below the  
“LOW” line, add coolant up to  
the “FULL” line. (P. 646)  
PRIUS_OM_OM47D44U_(U)  
511  
6-3. Do-it-yourself maintenance  
■Coolant selection  
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene  
glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with  
long-life hybrid organic acid technology.  
U.S.A.:  
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-  
ized water. (Minimum temperature: -31F [-35C])  
Canada:  
“Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deion-  
ized water. (Minimum temperature: -44F [-42C])  
For more details about coolant, contact your Toyota dealer.  
■If the coolant level drops within a short time of replenishing  
Visually check the radiator, hoses, engine/power control unit coolant reservoir  
caps, drain cock and water pump.  
If you cannot find a leak, have your Toyota dealer test the cap and check for  
leaks in the cooling system.  
WARNING  
■When the hybrid system is hot  
Do not remove the engine/power control unit coolant reservoir caps.  
The cooling system may be under pressure and may spray hot coolant if the  
cap is removed, causing serious injuries, such as burns.  
6
NOTICE  
■When adding coolant  
Coolant is neither plain water nor straight antifreeze. The correct mixture of  
water and antifreeze must be used to provide proper lubrication, corrosion  
protection and cooling. Be sure to read the antifreeze or coolant label.  
■If you spill coolant  
Be sure to wash it off with water to prevent it from damaging parts or paint.  
PRIUS_OM_OM47D44U_(U)  
512  
Radiator and condenser  
6-3. Do-it-yourself maintenance  
Check the radiator and condenser and clear away any foreign objects.  
If either of the above parts is extremely dirty or you are not sure of  
their condition, have your vehicle inspected by your Toyota dealer.  
WARNING  
■When the hybrid system is hot  
Do not touch the radiator or condenser as they may be hot and cause seri-  
ous injuries, such as burns.  
■When the electric cooling fans are operating  
Do not touch the engine compartment.  
With the power switch in ON mode, the electric cooling fans may automati-  
cally start to run if the air conditioning is on and/or the coolant temperature  
is high. Be sure the power switch is off when working near the electric cool-  
ing fans or radiator grille.  
12-volt battery  
Check the 12-volt battery as follows:  
■ 12-volt battery exterior  
Make sure that the 12-volt battery terminals are not corroded and  
that there are no loose connections, cracks, or loose clamps.  
Terminals  
PRIUS_OM_OM47D44U_(U)  
513  
6-3. Do-it-yourself maintenance  
■When opening the cover of the positive (+) battery terminal  
While pushing the portion shown in the  
illustration from both sides, lift the end of  
the cover up.  
■Before recharging  
When recharging, the 12-volt battery produces hydrogen gas which is flam-  
mable and explosive. Therefore, observe the following precautions before  
recharging:  
●If recharging with the 12-volt battery installed on the vehicle, be sure to dis-  
connect the ground cable.  
●Make sure the power switch on the charger is off when connecting and dis-  
connecting the charger cables to the 12-volt battery.  
■After recharging/reconnecting the 12-volt battery  
●Unlocking the doors using the smart key system may not be possible imme-  
diately after reconnecting the 12-volt battery. If this happens, use the wire-  
less remote control or the mechanical key to lock/unlock the doors.  
●Start the hybrid system with the power switch in ACCESSORY mode. The  
hybrid system may not start with the power switch turned off. However, the  
hybrid system will operate normally from the second attempt.  
6
●The power switch mode is recorded by the vehicle. If the 12-volt battery is  
reconnected, the vehicle will return the power switch mode to the status it  
was in before the 12-volt battery was disconnected. Make sure to turn off  
the power before disconnect the 12-volt battery. Take extra care when con-  
necting the 12-volt battery if the power switch mode prior to discharge is  
unknown.  
●Restart the hybrid system, depress the brake pedal, and confirm that it is  
possible to shift into each shift position.  
If the system will not start even after multiple attempts at all methods above,  
contact your Toyota dealer.  
PRIUS_OM_OM47D44U_(U)  
514  
6-3. Do-it-yourself maintenance  
WARNING  
■Chemicals in the 12-volt battery  
The 12-volt battery contains poisonous and corrosive sulfuric acid and may  
produce hydrogen gas which is flammable and explosive. To reduce the risk  
of death or serious injury, take the following precautions while working on or  
near the 12-volt battery:  
●Do not cause sparks by touching the 12-volt battery terminals with tools.  
●Do not smoke or light a match near the 12-volt battery.  
●Avoid contact with eyes, skin and clothes.  
●Never inhale or swallow electrolyte.  
●Wear protective safety glasses when working near the 12-volt battery.  
●Keep children away from the 12-volt battery.  
■Where to safely charge the 12-volt battery  
Always charge the 12-volt battery in an open area. Do not charge the  
12-volt battery in a garage or closed room where there is insufficient ventila-  
tion.  
■How to recharge the 12-volt battery  
Only perform a slow charge (5 A or less). The 12-volt battery may explode if  
charged at a quicker rate.  
■Emergency measures regarding electrolyte  
●If electrolyte gets in your eyes  
Flush your eyes with clean water for at least 15 minutes and get immedi-  
ate medical attention. If possible, continue to apply water with a sponge or  
cloth while traveling to the nearest medical facility.  
●If electrolyte gets on your skin  
Wash the affected area thoroughly. If you feel pain or burning, get medical  
attention immediately.  
●If electrolyte gets on your clothes  
It can soak through clothing on to your skin. Immediately take off the cloth-  
ing and follow the procedure above if necessary.  
●If you accidentally swallow electrolyte  
Drink a large quantity of water or milk. Get emergency medical attention  
immediately.  
PRIUS_OM_OM47D44U_(U)  
515  
6-3. Do-it-yourself maintenance  
WARNING  
■When disconnecting the 12-volt battery  
Do not disconnect the negative (-) terminal on the body side. The discon-  
nected negative (-) terminal may touch the positive (+) terminal, which may  
cause a short and result in death or serious injury.  
NOTICE  
■When recharging the 12-volt battery  
Never recharge the 12-volt battery while the hybrid system is operating.  
Also, be sure all accessories are turned off.  
6
PRIUS_OM_OM47D44U_(U)  
516  
Brake fluid  
6-3. Do-it-yourself maintenance  
■ Checking fluid level  
The brake fluid level should be  
between the “MAX” and “MIN”  
lines on the tank.  
■ Adding fluid  
1
Slide and lift up the rubber  
strip to partly remove it as  
shown.  
2
Disconnect the claws and  
remove the service cover.  
PRIUS_OM_OM47D44U_(U)  
517  
6-3. Do-it-yourself maintenance  
3
Remove the reservoir cap.  
4
Add brake fluid slowly while checking the fluid level.  
Make sure to check the fluid type and prepare the necessary item.  
SAE J1703 or FMVSS No.116 DOT 3 or SAE J1704  
or FMVSS No.116 DOT 4 brake fluid  
Fluid type  
Items  
Clean funnel  
■Brake fluid can absorb moisture from the air  
Excess moisture in the brake fluid can cause a dangerous loss of braking effi-  
ciency. Use only newly opened brake fluid.  
WARNING  
■When filling the reservoir  
6
Take care as brake fluid can harm your hands and eyes and damage  
painted surfaces.  
If fluid gets on your hands or in your eyes, flush the affected area with clean  
water immediately.  
If you still experience discomfort, see a doctor.  
NOTICE  
■If the brake fluid level is low or high  
It is normal for the brake fluid level to go down slightly as the brake pads  
wear out or when the fluid level in the accumulator is high.  
If the reservoir needs frequent refilling, there may be a serious problem.  
PRIUS_OM_OM47D44U_(U)  
518  
Washer fluid  
6-3. Do-it-yourself maintenance  
1
Open the lid.  
2
Vehicles with the level gauge: Check the washer fluid level on the  
level gauge.  
1
“NORMAL”  
“LOW”  
2
3
If the washer fluid level is at  
“LOW”, add washer fluid.  
PRIUS_OM_OM47D44U_(U)  
519  
6-3. Do-it-yourself maintenance  
■Using the gauge (if equipped)  
The washer fluid level can be checked by  
observing the position of the level on the  
liquid-covered holes in the gauge.  
If the level falls below the second hole  
from the bottom (the “LOW” position), refill  
the washer fluid.  
Current  
fluid level  
WARNING  
■When adding washer fluid  
Do not add washer fluid when the hybrid system is hot or operating as  
washer fluid contains alcohol and may catch fire if spilled on the engine etc.  
NOTICE  
■Do not use any fluid other than washer fluid  
Do not use soapy water or engine antifreeze instead of washer fluid.  
Doing so may cause streaking on the vehicle’s painted surfaces, as well as  
damaging the pump leading to problems of the washer fluid not spraying.  
■Diluting washer fluid  
6
Dilute washer fluid with water as necessary.  
Refer to the freezing temperatures listed on the label of the washer fluid bot-  
tle.  
PRIUS_OM_OM47D44U_(U)  
520  
6-3. Do-it-yourself maintenance  
Tires  
Replace or rotate tires in accordance with maintenance sched-  
ules and treadwear.  
Checking tires  
Check if the treadwear indicators are showing on the tires. Also check  
the tires for uneven wear, such as excessive wear on one side of the  
tread.  
Check the spare tire (if equipped) condition and pressure if not  
rotated.  
1
2
3
New tread  
Worn tread  
Treadwear indicator  
The location of treadwear indicators is shown by a “TWI” or “” mark,  
etc., molded into the sidewall of each tire.  
Replace the tires if the treadwear indicators are showing on a tire.  
PRIUS_OM_OM47D44U_(U)  
521  
6-3. Do-it-yourself maintenance  
Tire rotation  
Rotate the tires in the order shown.  
To equalize tire wear and extend tire life, Toyota recommends that tire  
rotation is carried out at the same interval as tire inspection.  
Do not fail to initialize the tire pressure warning system after tire rota-  
tion.  
Vehicles without full-size spare Vehicles with full-size spare  
tire  
tire  
Front  
Front  
6
PRIUS_OM_OM47D44U_(U)  
522  
6-3. Do-it-yourself maintenance  
Tire pressure warning system  
Your vehicle is equipped with a tire pressure warning system that uses  
tire pressure warning valves and transmitters to detect low tire infla-  
tion pressure before serious problems arise.  
If the tire pressure drops below a predetermined level, the driver is  
warned by a warning light. (P. 583)  
The compact spare tire is not equipped with a tire pressure warning  
valve and transmitter.  
◆ Installing tire pressure warning valves and transmitters  
When replacing tires or wheels, tire pressure warning valves and  
transmitters must also be installed.  
When new tire pressure warning valves and transmitters are  
installed, new ID codes must be registered in the tire pressure  
warning computer and the tire pressure warning system must be  
initialized. Have tire pressure warning valve and transmitter ID  
codes registered by your Toyota dealer. (P. 523)  
◆ Initializing the tire pressure warning system  
■ The tire pressure warning system must be initialized when the  
tire inflation pressure is changed such as when changing trav-  
elling speed or load weight.  
When the tire pressure warning system is initialized, the current tire  
inflation pressure is set as the benchmark pressure.  
PRIUS_OM_OM47D44U_(U)  
523  
6-3. Do-it-yourself maintenance  
■ How to initialize the tire pressure warning system  
1
Park the vehicle in a safe place and turn the power switch off.  
Initialization cannot be performed while the vehicle is moving.  
2
Adjust the tire inflation pressure to the specified cold tire inflation  
pressure level. (P. 660)  
Make sure to adjust the tire pressure to the specified cold tire infla-  
tion pressure level. The tire pressure warning system will operate  
based on this pressure level.  
3
4
Turn the power switch to ON mode.  
Switch the multi-information display to the  
screen.  
(P. 149)  
5
6
7
Press  
(Vehicle Settings)”, and then press  
Press or of the meter control switches, select “Mainte-  
nance System”, and then press  
or  
of the meter control switches, select “  
.
.
Press  
or  
of the meter control switches, select “TPMS”,  
.
6
and then press  
Press and hold  
8
9
.
When initialization com-  
pletes, a message is dis-  
played  
on  
the  
multi-  
information display and the  
tire pressure warning light  
illuminates.  
◆ Registering ID codes  
The tire pressure warning valve and transmitter is equipped with a  
unique ID code. When replacing a tire pressure warning valve and  
transmitter, it is necessary to register the ID code. Have the ID code  
registered by your Toyota dealer.  
PRIUS_OM_OM47D44U_(U)  
524  
6-3. Do-it-yourself maintenance  
■When to replace your vehicle’s tires  
Tires should be replaced if:  
●The treadwear indicators are showing on a tire.  
●You have tire damage such as cuts, splits, cracks deep enough to  
expose the fabric, and bulges indicating internal damage.  
●A tire goes flat repeatedly or cannot be properly repaired due to the size  
or location of a cut or other damage.  
If you are not sure, consult with your Toyota dealer.  
■Replacing tires and wheels  
If the ID code of the tire pressure warning valve and transmitter is not reg-  
istered, the tire pressure warning system will not work properly. After driv-  
ing for about 20 minutes, the tire pressure warning light blinks for 1  
minute and stays on to indicate a system malfunction.  
■Tire life  
Any tire over 6 years old must be checked by a qualified technician even  
if it has seldom or never been used or damage is not obvious.  
■Routine tire inflation pressure checks  
The tire pressure warning system does not replace routine tire inflation  
pressure checks. Make sure to check tire inflation pressure as part of  
your routine of daily vehicle checks.  
■Maximum load of tire  
Check that the maximum load of the replacement tire is greater than 1/2  
of the Gross Axle Weight Ratings (GAWR) of either the front axle or the  
rear axle, whichever is greater.  
For the GAWR, see the Certification  
Label. For the maximum load of the tire,  
see the load limit at maximum cold tire  
inflation pressure mentioned on the  
sidewall of the tire. (P. 666)  
BTO62EP049  
PRIUS_OM_OM47D44U_(U)  
525  
6-3. Do-it-yourself maintenance  
■Tire types  
●Summer tires  
Summer tires are high-speed performance tires best suited to highway  
driving under dry conditions. Since summer tires do not have the same  
traction performance as snow tires, summer tires are inadequate for  
driving on snow-covered or icy roads. For driving on snow-covered  
roads or icy roads, the use of snow tires is recommended. When install-  
ing snow tires, be sure to replace all four tires.  
●All season tires  
All season tires are designed to provide better traction in snow and to  
be adequate for driving in most winter conditions as well as for use  
year-round. All season tires, however, do not have adequate traction  
performance compared with snow tires in heavy or loose snow. Also, all  
season tires fall short in acceleration and handling performance com-  
pared with summer tires in highway driving.  
●Snow tires  
For driving on snow-covered roads or icy roads, we recommend using  
snow tires. If you need snow tires, select tires of the same size, con-  
struction and load capacity as the originally installed tires. Since your  
vehicle has radial tires as original equipment, make sure your snow  
tires also have radial construction. Do not install studded tires without  
first checking local regulations for possible restrictions. Snow tires  
should be installed on all wheels. (P. 418)  
■If the tread on snow tires wears down below 0.16 in. (4 mm)  
The effectiveness of the tires as snow tires is lost.  
6
■Low profile tires (vehicles with 215/45R17 tires)  
Generally, low profile tires will wear more rapidly and tire grip perfor-  
mance will be reduced on snowy and/or icy roads when compared to  
standard tires.  
Be sure to use snow tires or tire chains on snowy and/or icy roads and  
drive carefully at a speed appropriate for road and weather conditions.  
PRIUS_OM_OM47D44U_(U)  
526  
6-3. Do-it-yourself maintenance  
■Situations in which the tire pressure warning system may not oper-  
ate properly  
●In the following cases, the tire pressure warning system may not operate  
properly.  
• If non-genuine Toyota wheels are used.  
• When a replacement tire is used, the system may not operate cor-  
rectly due to the structure of the replacement tire.  
• A tire has been replaced with a tire that is not of the specified size.  
• Tire chains etc. are equipped.  
• An auxiliary-supported run-flat tire is equipped.  
• If a window tint that affects the radio wave signals is installed.  
• If there is a lot of snow or ice on the vehicle, particularly around the  
wheels or wheel housings.  
• If the tire inflation pressure is extremely higher than the specified  
level.  
• If wheel without the tire pressure warning valve and transmitter is  
used.  
• If the ID code on the tire pressure warning valves and transmitters is  
not registered in the tire pressure warning computer.  
●Performance may be affected in the following situations.  
• Near a TV tower, electric power plant, gas station, radio station, large  
display, airport or other facility that generates strong radio waves or  
electrical noise  
• When carrying a portable radio, cellular phone, cordless phone or  
other wireless communication device  
●When the vehicle is parked, the time taken for the warning to start or go  
off could be extended.  
●When tire inflation pressure declines rapidly for example when a tire has  
burst, the warning may not function.  
■The initialization operation  
●Make sure to carry out initialization after adjusting the tire inflation pres-  
sure.  
Also, make sure the tires are cold before carrying out initialization or tire  
inflation pressure adjustment.  
●If you have accidentally turned the power switch off during initialization,  
it is not necessary to press the reset switch again as initialization will  
restart automatically when the power switch has been turned to ON  
mode for the next time.  
●If you accidentally press the reset switch when initialization is not neces-  
sary, adjust the tire inflation pressure to the specified level when the  
tires are cold, and conduct initialization again.  
PRIUS_OM_OM47D44U_(U)  
527  
6-3. Do-it-yourself maintenance  
■When initialization of the tire pressure warning system has failed  
Initialization can be completed in a few minutes. However, in the following  
cases, the settings have not been recorded and the system will not oper-  
ate properly. If repeated attempts to record tire inflation pressure settings  
are unsuccessful, have the vehicle inspected by your Toyota dealer.  
●When operating the initialization of the system, the tire pressure warning  
light does not flash 3 times and the setting message does not appear on  
the multi-information display.  
●After driving for a certain period of time since the initialization has been  
completed, the warning light comes on after blinking for 1 minute.  
■Certification for the tire pressure warning system  
For vehicles sold in the U.S.A., Hawaii, American Samoa, Guam,  
Saipan and Puerto Rico  
6
For vehicles sold in Canada  
PRIUS_OM_OM47D44U_(U)  
528  
6-3. Do-it-yourself maintenance  
WARNING  
■When inspecting or replacing tires  
Observe the following precautions to prevent accidents.  
Failure to do so may cause damage to parts of the drive train as well as  
dangerous handling characteristics, which may lead to an accident  
resulting in death or serious injury.  
●Do not mix tires of different makes, models or tread patterns.  
Also, do not mix tires of remarkably different treadwear.  
●Do not use tire sizes other than those recommended by Toyota.  
●Do not mix differently constructed tires (radial, bias-belted or bias-ply  
tires).  
●Do not mix summer, all season and snow tires.  
●Do not use tires that have been used on another vehicle.  
Do not use tires if you do not know how they were used previously.  
■When initializing the tire pressure warning system  
Do not initialize the tire pressure warning system without first adjusting  
the tire inflation pressure to the specified level. Otherwise, the tire pres-  
sure warning light may not come on even if the tire inflation pressure is  
low, or it may come on when the tire inflation pressure is actually nor-  
mal.  
PRIUS_OM_OM47D44U_(U)  
529  
6-3. Do-it-yourself maintenance  
NOTICE  
■Repairing or replacing tires, wheels, tire pressure warning valves,  
transmitters and tire valve caps  
●When removing or fitting the wheels, tires or the tire pressure warning  
valves and transmitters, contact your Toyota dealer as the tire pres-  
sure warning valves and transmitters may be damaged if not handled  
correctly.  
●Make sure to install the tire valve caps. If the tire valve caps are not  
installed, water could enter the tire pressure warning valves and the  
tire pressure warning valves could be bound.  
●When replacing tire valve caps, do not use tire valve caps other than  
those specified. The cap may become stuck.  
■To avoid damage to the tire pressure warning valves and transmit-  
ters  
When a tire is repaired with liquid sealants, the tire pressure warning  
valve and transmitter may not operate properly. If a liquid sealant is  
used, contact your Toyota dealer or other qualified service shop as soon  
as possible. After use of liquid sealant, make sure to replace the tire  
pressure warning valve and transmitter when repairing or replacing the  
tire. (P. 522)  
■Driving on rough roads  
Take particular care when driving on roads with loose surfaces or pot-  
holes.  
6
These conditions may cause losses in tire inflation pressure, reducing  
the cushioning ability of the tires. In addition, driving on rough roads  
may cause damage to the tires themselves, as well as the vehicle’s  
wheels and body.  
■Low profile tires (vehicles with 215/45R17 tires)  
Low profile tires may cause greater damage than usual to the wheel  
when receiving impact from the road surface. Therefore pay attention to  
the following:  
●Be sure to use proper tire inflation pressure. If tires are under-inflated,  
they may be damaged more severely.  
●Avoid pot holes, uneven pavement, curbs and other road hazards.  
Failure to do so can lead to severe tire and wheel damage.  
■If tire inflation pressure of each tire becomes low while driving  
Do not continue driving, or your tires and/or wheels may be ruined.  
PRIUS_OM_OM47D44U_(U)  
530  
6-3. Do-it-yourself maintenance  
Tire inflation pressure  
Tire inflation pressure  
The recommended cold tire infla-  
tion pressure and tire size are dis-  
played on the tire and loading  
information label. (P. 660)  
PRIUS_OM_OM47D44U_(U)  
531  
6-3. Do-it-yourself maintenance  
Inspection and adjustment procedure  
1
2
Tire valve  
Tire pressure gauge  
1
2
3
4
Remove the tire valve cap.  
Press the tip of the tire pressure gauge onto the tire valve.  
Read the pressure using the gauge gradations.  
If the tire inflation pressure is not at the recommended level, adjust  
the pressure.  
If you add too much air, press the center of the valve to deflate.  
5
6
After completing the tire inflation pressure measurement and  
adjustment, apply soapy water to the valve and check for leakage.  
Put the tire valve cap back on.  
6
■Tire inflation pressure check interval  
You should check tire inflation pressure every two weeks, or at least once  
a month.  
Do not forget to check the spare.  
■Effects of incorrect tire inflation pressure  
Driving with incorrect tire inflation pressure may result in the following:  
●Reduced fuel economy  
●Reduced driving comfort and poor handling  
●Reduced tire life due to wear  
●Reduced safety  
●Damage to the drive train  
If a tire needs frequent inflating, have it checked by your Toyota dealer.  
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532  
6-3. Do-it-yourself maintenance  
■Instructions for checking tire inflation pressure  
When checking tire inflation pressure, observe the following:  
●Check only when the tires are cold.  
If your vehicle has been parked for at least 3 hours or has not been  
driven for more than 1 mile or 1.5 km, you will get an accurate cold tire  
inflation pressure reading.  
●Always use a tire pressure gauge.  
It is difficult to judge if a tire is properly inflated based only on its appear-  
ance.  
●It is normal for the tire inflation pressure to be higher after driving as  
heat is generated in the tire. Do not reduce tire inflation pressure after  
driving.  
●Never exceed the vehicle capacity weight.  
Passengers and luggage weight should be placed so that the vehicle is  
balanced.  
WARNING  
■Proper inflation is critical to save tire performance  
Keep your tires properly inflated.  
If the tires are not properly inflated, the following conditions may occur  
which could lead to an accident resulting in death or serious injury:  
●Excessive wear  
●Uneven wear  
●Poor handling  
●Possibility of blowouts resulting from overheated tires  
●Air leaking from between tire and wheel  
●Wheel deformation and/or tire damage  
●Greater possibility of tire damage while driving (due to road hazards,  
expansion joints, sharp edges in the road, etc.)  
NOTICE  
■When inspecting and adjusting tire inflation pressure  
Be sure to put the tire valve caps back on.  
If a valve cap is not installed, dirt or moisture may get into the valve and  
cause an air leak, resulting in decreased tire inflation pressure.  
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533  
6-3. Do-it-yourself maintenance  
Wheels  
If a wheel is bent, cracked or heavily corroded, it should be  
replaced. Otherwise, the tire may separate from the wheel or  
cause a loss of handling control.  
Wheel selection  
When replacing wheels, care should be taken to ensure that they are  
equivalent to those removed in load capacity, diameter, rim width and  
inset*.  
Replacement wheels are available at your Toyota dealer.  
*: Conventionally referred to as “offset”.  
Toyota does not recommend using the following:  
● Wheels of different sizes or types  
● Used wheels  
● Bent wheels that have been straightened  
Aluminum wheel precautions  
● Use only Toyota wheel nuts and wrenches designed for use with  
your aluminum wheels.  
6
● When rotating, repairing or changing your tires, check that the  
wheel nuts are still tight after driving 1000 miles (1600 km).  
● Be careful not to damage the aluminum wheels when using tire  
chains.  
● Use only Toyota genuine balance weights or equivalent and a plas-  
tic or rubber hammer when balancing your wheels.  
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534  
■When replacing wheels  
6-3. Do-it-yourself maintenance  
The wheels of your vehicle are equipped with tire pressure warning  
valves and transmitters that allow the tire pressure warning system to  
provide advance warning in the event of a loss in tire inflation pressure.  
Whenever wheels are replaced, tire pressure warning valves and trans-  
mitters must be installed. (P. 522)  
WARNING  
■When replacing wheels  
●Do not use wheels that are a different size from those recommended in  
the Owner’s Manual, as this may result in a loss of handling control.  
●Never use an inner tube in a leaking wheel which is designed for a  
tubeless tire. Doing so may result in an accident, causing death or seri-  
ous injury.  
■When installing the wheel nuts  
●Be sure to install the wheel nuts with  
Tapered  
portion  
the tapered ends facing inward.  
Installing the nuts with the tapered  
ends facing outward can cause the  
wheel to break and eventually cause  
the wheel to come off while driving,  
which could lead to an accident  
resulting in death or serious injury.  
●Never use oil or grease on the wheel bolts or wheel nuts.  
Oil and grease may cause the wheel nuts to be excessively tightened,  
leading to bolt or disc wheel damage. In addition, the oil or grease can  
cause the wheel nuts to loosen and the wheel may fall off, causing an  
accident and resulting in death or serious injury. Remove any oil or  
grease from the wheel bolts or wheel nuts.  
■Use of defective wheels prohibited  
Do not use cracked or deformed wheels.  
Doing so could cause the tire to leak air during driving, possibly causing  
an accident.  
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535  
6-3. Do-it-yourself maintenance  
NOTICE  
■Replacing tire pressure warning valves and transmitters  
●Because tire repair or replacement may affect the tire pressure warn-  
ing valves and transmitters, make sure to have tires serviced by your  
Toyota dealer or other qualified service shop. In addition, make sure to  
purchase your tire pressure warning valves and transmitters at your  
Toyota dealer.  
●Ensure that only genuine Toyota wheels are used on your vehicle.  
Tire pressure warning valves and transmitters may not work properly  
with non-genuine wheels.  
6
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536  
6-3. Do-it-yourself maintenance  
Air conditioning filter  
The air conditioning filter must be changed regularly to maintain  
air conditioning efficiency.  
Replacing the air conditioning filter  
1
Turn the power switch off.  
2
Open the glove box and slide  
off the damper.  
3
Push in each side of the glove  
box to disconnect the claws,  
and then slowly and fully open  
the glove box while supporting  
it.  
4
With the glove box fully open,  
slightly lift up the glove box and  
pull toward the seat to detach  
the bottom of the glove box.  
Do not use excessive force if the  
glove box does not detach when  
lightly pulled. Instead, pull toward  
the seat while slightly adjusting the  
height of the glove box.  
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537  
6-3. Do-it-yourself maintenance  
5
Remove the filter cover.  
1
Unlock the filter cover.  
2
Move the filter cover in the  
direction of the arrow, and then  
pull it out of the claws.  
6
7
8
Remove the filter case.  
Remove the air conditioning fil-  
ter from the filter case and  
replace it with a new one.  
6
The “UP” marks shown on the fil-  
ter should be pointing up.  
When installing, reverse the steps listed.  
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538  
6-3. Do-it-yourself maintenance  
■Checking interval  
Inspect and replace the air conditioning filter according to the maintenance  
schedule. In dusty areas or areas with heavy traffic flow, early replacement  
may be required. (For scheduled maintenance information, please refer to the  
“Scheduled Maintenance Guide” or “Owner’s Manual Supplement”.)  
■If air flow from the vents decreases dramatically  
The filter may be clogged. Check the filter and replace if necessary.  
NOTICE  
■When using the air conditioning system  
Make sure that a filter is always installed.  
Using the air conditioning system without a filter may cause damage to the  
system.  
■When removing the glove box  
Always follow the specified procedure to remove the glove box (P. 536). If  
the glove box is removed without following the specified procedure, the  
hinge of the glove box may become damaged.  
■To prevent damage to the filter cover  
When moving the filter cover in the direc-  
tion of arrow to release the fitting, pay  
attention not to apply excessive force to  
the claws. Otherwise, the claws may be  
damaged.  
PRIUS_OM_OM47D44U_(U)  
539  
6-3. Do-it-yourself maintenance  
Cleaning the hybrid battery (traction bat-  
tery) air intake vent and filter  
To prevent the fuel economy from being affected, visually  
inspect the hybrid battery (traction battery) air intake vent peri-  
odically for dust and clogs. If it is dusty or clogged or if “Mainte-  
nance required for Traction battery cooling parts See owner’s  
manual” is shown on the multi-information display, clean the air  
intake vent using the following procedures:  
Cleaning the air intake vent  
Remove the dust from the air  
intake vent with  
cleaner, etc.  
a
vacuum  
Make sure to only use a vacuum to  
suck out dust and clogs. Attempt-  
ing to blow out dust and clogs  
using an airgun, etc. may push it  
into the air intake vent. (P. 543)  
6
If dust and clogs cannot be completely removed  
If dust and clogs cannot be completely removed with the air intake  
vent cover installed, remove the cover and clean the filter.  
1
Turn the power switch off.  
2
Using a Phillips screwdriver,  
remove the clip.  
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540  
6-3. Do-it-yourself maintenance  
3
Remove the air intake vent  
cover.  
1
Pull the cover as shown in  
the illustration to disengage  
the 5 claws, starting from the  
claw in the upper right cor-  
ner.  
2
Pull the cover toward the  
front of the vehicle to remove  
it.  
4
Remove the air intake vent fil-  
ter.  
1
Disengage the 1 claw as  
shown in the illustration.  
2
Disengage the 2 claws to  
remove the filter from the  
cover.  
5
Remove the dust and clogs  
from the filter using a vacuum  
cleaner, etc.  
Make sure to also remove the dust  
and clogs from the inside of the air  
intake vent cover.  
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541  
6-3. Do-it-yourself maintenance  
6
Reinstall the filter to the cover.  
1
Engage the filter to the 2  
claws as shown in the illus-  
tration.  
2
Engage the 1 claw to install  
the filter.  
Make sure that the filter is not  
crooked or deformed when install-  
ing it.  
7
Install the air intake vent cover.  
1
Insert the tab of the cover as  
shown in the illustration.  
2
Push the cover to engage the  
5 claws.  
6
8
Using a Phillips screwdriver,  
install the clip.  
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542  
6-3. Do-it-yourself maintenance  
■Scheduled maintenance of the air intake vent is necessary when  
In some situations such as when the vehicle is used frequently or in heavy  
traffic or dusty areas, the air intake vent may need to be cleaned more regu-  
larly. For details, refer to the “Scheduled Maintenance Guide” or “Owner’s  
Manual Supplement”.  
■Cleaning the air intake vent  
●Dust in the air intake vent may interfere with the cooling of the hybrid battery  
(traction battery). If charging/discharging of the hybrid battery (traction bat-  
tery) becomes limited, the distance that the vehicle can be driven using the  
electric motor (traction motor) may be reduced and the fuel economy may  
be reduced. Inspect and clean the air intake vent periodically.  
●Improper handling of the air intake vent cover and filter may result in dam-  
age to them. If you have any concerns about cleaning the filter, contact your  
Toyota dealer.  
■If “Maintenance required for Traction battery cooling parts See owner’s  
manual” is shown on the multi-information display  
●If this warning message is shown on the multi-information display, remove  
the air intake vent cover and clean the filter. (P. 539)  
●After cleaning the air intake vent, start the hybrid system and check that the  
warning message is no longer shown.  
It may take approximately 20 minutes after the hybrid system is started until  
the warning message disappears. If the warning message does not disap-  
pear, have the vehicle inspected by your Toyota dealer.  
WARNING  
■When cleaning the air intake vent  
●Do not use water or other liquids to clean the air intake vent. If water is  
applied to the hybrid battery (traction battery) or other components, a mal-  
function or fire may occur.  
●Before cleaning the air intake vent, make sure to turn the power switch off  
to stop the hybrid system.  
■When removing the air intake vent cover  
Do not touch the service plug located near the air intake vent. (P. 90)  
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543  
6-3. Do-it-yourself maintenance  
NOTICE  
■When cleaning the air intake vent  
When cleaning the air intake vent, make  
sure to only use a vacuum to suck out  
dust and clogs. If a compressed air blow  
gun, etc. is used to blow out dust and  
clogs, the dust or clogs may be pushed  
into the air intake vent, which may affect  
the performance of the hybrid battery  
(traction battery) and cause a malfunc-  
tion.  
■To prevent damage to the vehicle  
●Do not allow water or foreign matter to enter the air intake vent when the  
cover is removed.  
●Carefully handle the removed filter so that it will not be damaged. If the fil-  
ter is damaged, have it replaced with a new filter by your Toyota dealer.  
●Make sure to reinstall the filter and cover to their original positions after  
cleaning.  
●Do not install anything to the air intake vent other than the exclusive filter  
for this vehicle or use the vehicle without the filter installed.  
■If “Maintenance required for Traction battery cooling parts See owner’s  
manual” is shown on the multi-information display  
6
If the vehicle is continuously driven with the warning message (indicating  
that charging/discharging of the hybrid battery [traction battery] may  
become limited) displayed, the hybrid battery (traction battery) may mal-  
function. If the warning message is shown, clean the air intake vent immedi-  
ately.  
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544  
6-3. Do-it-yourself maintenance  
Wiper insert replacement  
When replacing the wiper insert, perform the following proce-  
dure to operate each wiper.  
Windshield wipers  
■ Windshield wiper blade removal and installation  
1
While securely supporting  
the wiper blade connection  
by hand, press the lock knob  
to release the lock, and then  
pull out the wiper blade.  
2
Align the wiper blade with the  
connecting portion of the  
wiper arm, and then slide it in  
the direction it was removed  
from.  
After installing the wiper blade,  
check that the connection is  
locked.  
■ Wiper insert replacement  
1
Pull the wiper insert until it  
protrudes from the slit on the  
back of the wiper blade.  
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545  
6-3. Do-it-yourself maintenance  
2
Pull out the end of the wiper  
insert from the slit, and then  
pull out the rest of the wiper  
insert.  
3
When installing a new wiper  
insert, perform the procedure  
in reverse.  
After installation, check that the  
end of the wiper insert is  
installed all the way to the end of  
the cap.  
Rear window wiper (if equipped)  
1
Slide the rear window wiper  
arm head cap.  
6
2
Move the wiper blade until a  
click sound can be heard and  
the claw detaches, and then  
remove the wiper blade from  
the wiper arm.  
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546  
6-3. Do-it-yourself maintenance  
3
Pull the wiper insert out past  
the stopper on the wiper blade,  
and then continue to pull until it  
is completely removed.  
Lightly grasp between the claws of  
the wiper blade to allow the wiper  
insert to lift up, making it easier to  
remove.  
4
Remove the 2 metal plates from  
the old wiper insert and install  
them to the replacement wiper  
insert.  
5
Insert the wiper insert starting from the claw at the center of the  
wiper blade. Pass the wiper insert through the 3 claws so that it  
sticks out from the stopper, and then pass the wiper insert through  
the final remaining claw.  
Applying a small amount of washer fluid to the wiper insert can make it  
easier to insert the claws into the grooves.  
PRIUS_OM_OM47D44U_(U)  
547  
6-3. Do-it-yourself maintenance  
6
Check that the wiper blade  
claws are fitted in the grooves  
of the wiper insert.  
• If the wiper blade claws are  
not fitted in the grooves of  
the wiper insert, grasp the  
wiper insert and slide it back  
and forth multiple times to  
insert the claws into the  
grooves.  
• Lightly lift up the center of the wiper insert to make the insert eas-  
ier to slide.  
7
1
When installing a wiper blade, reverse the procedure in steps  
2
and  
.
After installing the wiper blade, check that the connection is locked.  
■Wiper blade and wiper insert handling  
Improper handling may result in damage to the wiper blades or wiper insert. If  
you have any concerns about replacing the wiper blades or wiper insert your-  
self, contact your Toyota dealer.  
■Front wiper blade cap  
6
The cap cannot be removed, as it is integrated with the front wiper blade.  
NOTICE  
■To prevent damage  
●Be careful not to damage the claws when replacing the wiper insert.  
●After the wiper blade is removed from the wiper arm, place a cloth, etc.,  
between the rear window and wiper arm to prevent damage to the rear  
window.  
●Be sure not to pull excessively on the wiper insert or deform its metal  
plates.  
PRIUS_OM_OM47D44U_(U)  
548  
6-3. Do-it-yourself maintenance  
Electronic key battery  
Replace the battery with a new one if it is depleted.  
You will need the following items:  
● Flathead screwdriver  
● Lithium battery CR2032  
Replacing the battery  
1
Release the lock and take out  
the mechanical key.  
2
Remove the cover.  
Use a screwdriver of an appropri-  
ate size. Forcedly prying may  
cause the cover damaged.  
To prevent damage to the key,  
cover the tip of the screwdriver with  
a rag.  
PRIUS_OM_OM47D44U_(U)  
549  
6-3. Do-it-yourself maintenance  
3
Remove the depleted battery.  
When removing the cover, if the  
battery cannot be seen due to the  
electronic key module attaching to  
the upper cover, remove the elec-  
tronic key module from the cover  
so that the battery is visible as  
shown in the illustration.  
When removing the battery, use a  
screwdriver of an appropriate size.  
Insert a new battery with the “+” terminal facing up.  
When installing, reverse the steps listed.  
4
■Use a CR2032 lithium battery  
●Batteries can be purchased at your Toyota dealer, local electrical appliance  
shops or camera stores.  
●Replace only with the same or equivalent type recommended by the manu-  
facturer.  
●Dispose of used batteries according to the local laws.  
■If the electronic key battery is depleted  
The following symptoms may occur:  
●The smart key system and wireless remote control will not function properly.  
●The operational range will be reduced.  
6
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550  
6-3. Do-it-yourself maintenance  
WARNING  
■Removed battery and other parts  
These parts are small and if swallowed by a child, they can cause choking.  
Keep away from children. Failure to do so could result in death or serious  
injury.  
NOTICE  
■For normal operation after replacing the battery  
Observe the following precautions to prevent accidents:  
●Always work with dry hands.  
Moisture may cause the battery to rust.  
●Do not touch or move any other component inside the remote control.  
●Do not bend either of the battery terminals.  
PRIUS_OM_OM47D44U_(U)  
551  
6-3. Do-it-yourself maintenance  
Checking and replacing fuses  
If any of the electrical components do not operate, a fuse may  
have blown. If this happens, check and replace the fuses as nec-  
essary.  
1
Turn the power switch off.  
2
Open the fuse box cover.  
Engine compartment type A fuse box  
While pushing the 2 claws, lift up  
the cover.  
When closing the cover, make sure  
to attach the 2 claws.  
Engine compartment type B fuse box  
While pushing the 3 claws, lift up  
the cover.  
6
When closing the cover, make sure  
to attach the 3 claws.  
Left side instrument panel  
Remove the lid.  
Make sure to press the claw during  
removal or installation.  
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552  
6-3. Do-it-yourself maintenance  
3
Remove the fuse.  
Only type A fuse can be  
removed using the pullout tool.  
4
Check if the fuse is blown.  
1
Normal fuse  
Blown fuse  
2
Replace the blown fuse with a new fuse of an appropriate amperage rat-  
ing. The amperage rating can be found on the fuse box lid.  
Type A  
Type B  
Type C  
PRIUS_OM_OM47D44U_(U)  
553  
6-3. Do-it-yourself maintenance  
■After a fuse is replaced  
●If the lights do not turn on even after the fuse has been replaced, a bulb may  
need replacement. (P. 556)  
●If the replaced fuse blows again, have the vehicle inspected by your Toyota  
dealer.  
■If there is an overload in a circuit  
The fuses are designed to blow, protecting the wiring harness from damage.  
■When replacing light bulbs  
Toyota recommends that you use genuine Toyota products designed for this  
vehicle. Because certain bulbs are connected to circuits designed to prevent  
overload, nongenuine parts or parts not designed for this vehicle may be  
unusable.  
WARNING  
■To prevent system breakdowns and vehicle fire  
Observe the following precautions.  
Failure to do so may cause damage to the vehicle, and possibly a fire or  
injury.  
●Never use a fuse of a higher amperage rating than that indicated, or use  
any other object in place of a fuse.  
●Always use a genuine Toyota fuse or equivalent.  
Never replace a fuse with a wire, even as a temporary fix.  
6
●Do not modify the fuses or fuse boxes.  
NOTICE  
■Before replacing fuses  
Have the cause of electrical overload determined and repaired by your  
Toyota dealer as soon as possible.  
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554  
6-3. Do-it-yourself maintenance  
Headlight aim  
Vertical movement adjusting bolts  
1
2
Adjustment bolt A  
Adjustment bolt B  
Before checking the headlight aim  
1
Make sure the vehicle has a full tank of gasoline and the area  
around the headlight is not deformed.  
2
Park the vehicle on level ground.  
3
Sit in the driver’s seat.  
4
Bounce the vehicle several times.  
PRIUS_OM_OM47D44U_(U)  
555  
6-3. Do-it-yourself maintenance  
Adjusting the headlight aim  
1
Using a Phillips-head screw-  
driver, turn bolt A in either direc-  
tion.  
Remember the turning direction  
and the number of turns.  
2
Turn bolt B the same number of  
turns and in the same direction  
1
as step  
.
If the headlight cannot be adjusted  
using this procedure, take the vehi-  
cle to your Toyota dealer to adjust  
the headlight aim.  
6
PRIUS_OM_OM47D44U_(U)  
556  
6-3. Do-it-yourself maintenance  
Light bulbs  
You may replace the following bulbs by yourself. The difficulty  
level of replacement varies depending on the bulb. As there is a  
danger that components may be damaged, we recommend that  
replacement is carried out by your Toyota dealer.  
Preparing for light bulb replacement  
Check the wattage of the light bulb to be replaced. (P. 662)  
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557  
6-3. Do-it-yourself maintenance  
Bulb locations  
■ Front  
Parking light (bulb type)*1, 2  
Front side marker light  
*1: If equipped  
1
2
*2: The location of the parking lights may differ depending on the grade,  
etc.  
6
■ Rear  
1
2
3
Back-up light  
Rear side marker light  
Rear turn signal light  
PRIUS_OM_OM47D44U_(U)  
558  
Replacing light bulbs  
6-3. Do-it-yourself maintenance  
■ Parking lights (bulb type) (if equipped)  
1
Remove the clips and the engine compartment cover.  
There are two types of clips used, which vary depending on the vehicle.  
Type A  
Type B  
2
Turn the bulb base counter-  
clockwise.  
3
Remove the light bulb.  
4
5
2
3
When installing the bulb, reverse the steps  
Attach the engine compart-  
ment cover and install the  
and  
in reverse.  
Type A  
clips.  
Push up center portion of the  
clips (type A only).  
Type B  
Insert and press the clips.  
PRIUS_OM_OM47D44U_(U)  
559  
6-3. Do-it-yourself maintenance  
■ Front side marker lights  
1
For the right side only:  
Remove the clip and slide  
the washer tank inlet pipe to  
the right.  
To prevent damage to the cover,  
protect the tip of the screwdriver  
with a rag.  
2
Turn the bulb base counter-  
clockwise.  
3
Remove the light bulb.  
6
4
2
3
When installing the bulb, reverse the steps  
and  
in reverse.  
5
For the right side only: Install  
the washer tank inlet pipe  
and the clip by conducting  
1
step  
in reverse.  
PRIUS_OM_OM47D44U_(U)  
560  
6-3. Do-it-yourself maintenance  
■ Rear turn signal lights, back-up lights and rear side maker  
lights  
1
Open the back door. Insert a  
screwdriver into the cover on  
the side of the light and  
detach the claws indicated by  
the dotted lines near the  
exterior of the vehicle. Then,  
pry the cover and pull it diag-  
onally backward to the lug-  
gage compartment to detach  
the claws indicated by the  
dotted lines near the vehicle  
interior.  
To prevent damage to the cover, protect the tip of the screwdriver with a  
rag.  
2
Remove the 2 screws.  
3
Pull the light unit toward the  
rear of the vehicle to remove  
it.  
PRIUS_OM_OM47D44U_(U)  
561  
6-3. Do-it-yourself maintenance  
4
Turn the bulb base counterclockwise.  
Back-up light  
Rear turn signal light  
Rear side maker light  
6
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6-3. Do-it-yourself maintenance  
5
Remove the light bulb.  
Back-up light  
Rear turn signal light  
Rear side maker light  
PRIUS_OM_OM47D44U_(U)  
563  
6-3. Do-it-yourself maintenance  
6
Install a new light bulb then install the bulb base to the light unit  
by inserting it and turning the bulb base clockwise.  
Back-up light  
Rear turn signal light  
Rear side maker light  
6
PRIUS_OM_OM47D44U_(U)  
564  
6-3. Do-it-yourself maintenance  
7
Align the grooves on the light  
unit with the claws, and insert  
the light unit straight so that  
the 2 pins on the light unit fit  
into the holes. Confirm that  
the light unit is completely  
secured.  
8
Install the 2 screws.  
9
Install the cover.  
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565  
6-3. Do-it-yourself maintenance  
■ Replacing the following bulbs  
If any of the lights listed below has burnt out, have it replaced by  
your Toyota dealer.  
● Headlights and daytime running lights  
● Parking lights (LED type: if equipped)  
● Fog lights  
● Front turn signal lights  
● Tail lights  
● Stop lights  
● High mounted stoplight  
● License plate lights  
■LED lights  
The lights other than the parking lights (bulb type: if equipped), front side  
marker lights, rear turn signal lights, rear side maker lights and back-up lights  
each consist of a number of LEDs. If any of the LEDs burn out, take your  
vehicle to your Toyota dealer to have the light replaced.  
■Condensation build-up on the inside of the lens  
Temporary condensation build-up on the inside of the headlight lens does not  
indicate a malfunction. Contact your Toyota dealer for more information in the  
following situations:  
6
●Large drops of water have built up on the inside of the lens.  
●Water has built up inside the light.  
■When replacing light bulbs  
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PRIUS_OM_OM47D44U_(U)  
566  
6-3. Do-it-yourself maintenance  
WARNING  
■Replacing light bulbs  
●Be sure to stop the hybrid system and turn off the lights. Do not attempt to  
replace the bulb immediately after turning off the lights.  
The bulbs become very hot and may cause burns.  
●Do not touch the glass portion of the light bulb with bare hands. When it is  
unavoidable to hold the glass portion, use and hold with a clean dry cloth  
to avoid getting moisture and oils on the bulb.  
Also, if the bulb is scratched or dropped, it may blow out or crack.  
●Fully install light bulbs and any parts used to secure them. Failure to do so  
may result in heat damage, fire, or water entering the headlight unit. This  
may damage the headlights or cause condensation to build up on the lens.  
●Do not attempt to repair or disassemble light bulbs, connectors, electric  
circuits or component parts.  
Doing so may result in death or serious injury due to electric shock.  
■To prevent damage or fire  
●Make sure bulbs are fully seated and locked.  
●Check the wattage of the bulb before installing to prevent heat damage.  
PRIUS_OM_OM47D44U_(U)  

Related Topics

Cleaning and protecting the vehicle exterior
Cleaning and protecting the vehicle interior
General maintenance
Emission inspection and maintenance (I/M) programs

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