Do-it-yourself maintenance -> Light bulbs for Your Toyota Prius 4 Door Fourth Generation (2016-2022)

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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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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  
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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.  
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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.  
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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.  
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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  
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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
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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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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  
P. 553  
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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.  
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