Get Operating the lights and wipers -> Automatic High Beam Guide for Toyota Prius 4 Door Fourth Generation (2016-2022)

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4-3. Operating the lights and wipers

Automatic High Beam^

The Automatic High Beam uses an in-vehicle camera sensor to

assess the brightness of streetlights, the lights of vehicles

ahead etc., and automatically turns the high beam on or off as

necessary.

WARNING

■Limitations of the Automatic High Beam

Do not rely on the Automatic High Beam. Always drive safely, taking care to

observe your surroundings and turning the high beam on or off manually if

necessary.

■To prevent incorrect operation of the Automatic High Beam system

Do not overload the vehicle.

Activating the Automatic High Beam system

1

Push the lever away from you

with the headlight switch in the

or

position.

2

Press the Automatic High

Beam switch.

The Automatic High Beam indica-

tor will come on when the head-

lights are turned on automatically

to indicate that the system is

active.

: If equipped

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4-3. Operating the lights and wipers

Turning the high beam on/off manually

■ Switching to low beam

Pull the lever to the original

position.

The Automatic High Beam indi-

cator will turn off.

Push the lever away from you to

activate the Automatic High

Beam system again.

■ Switching to high beam

Press the Automatic High

Beam switch.

The Automatic High Beam indi-

cator will turn off and the high

beam indicator will turn on.

4

Press the switch to activate the

Automatic High Beam system

again.

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4-3. Operating the lights and wipers

■High beam automatic turning on or off conditions

●When all of the following conditions are fulfilled, the high beam will be auto-

matically turned on (after approximately 1 second):

• Vehicle speed is above approximately 21 mph (34 km/h).

• The area ahead of the vehicle is dark.

• There are no vehicles ahead with headlights or tail lights turned on.

• There are few streetlights on the road ahead.

●If any of the following conditions are fulfilled, the high beam will be automat-

ically turned off:

• Vehicle speed drops below approximately 17 mph (27 km/h).

• The area ahead of the vehicle is not dark.

• Vehicles ahead have headlights or tail lights turned on.

• There are many streetlights on the road ahead.

■Camera sensor detection information

●The high beam may not be automatically turned off in the following situa-

tions:

• When oncoming vehicles suddenly appear from a curve

• When the vehicle is cut in front of by another vehicle

• When vehicles ahead are hidden from sight due to repeated curves, road

dividers or roadside trees

• When vehicles ahead appear from the faraway lane on wide road

• When vehicles ahead vehicles have no lights

●The high beam may be turned off if a vehicle ahead that is using fog lights

without using the headlights is detected.

●House lights, street lights, traffic signals, and illuminated billboards or signs

may cause the high beam to switch to the low beams, or the low beams to

remain on.

●The following factors may affect the amount of time taken to turn the high

beam on or off:

• The brightness of headlights, fog lights, and tail lights of vehicles ahead

• The movement and direction of vehicles ahead

• When a vehicle ahead only has operational lights on one side

• When a vehicle ahead is a two-wheeled vehicle

• The condition of the road (gradient, curve, condition of the road surface

etc.)

• The number of passengers and amount of luggage

●The high beam may be turned on or off when the driver does not expect it.

●Bicycles or similar objects may not be detected.

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4-3. Operating the lights and wipers

●In the situations shown below, the system may not be able to accurately

detect surrounding brightness levels. This may cause the low beams to

remain on or the high beams to cause problems for pedestrians, vehicles

ahead or other parties. In these cases, manually switch between the high

and low beams.

• In bad weather (rain, snow, fog, sandstorms etc.)

• The windshield is obscured by fog, mist, ice, dirt etc.

• The windshield is cracked or damaged.

• The camera sensor is deformed or dirty.

• The camera sensor temperature is extremely high.

• Surrounding brightness levels are equal to those of headlights, tail lights

or fog lights.

• Vehicles ahead have headlights that are either switched off, dirty, are

changing color, or are not aimed properly.

• When driving through an area of intermittently changing brightness and

darkness.

• When frequently and repeatedly driving ascending/descending roads, or

roads with rough, bumpy or uneven surfaces (such as stone-paved

roads, gravel tracks etc.).

4

• When frequently and repeatedly taking curves or driving on a winding

road.

• There is a highly reflective object ahead of the vehicle, such as a sign or

a mirror.

• The back of a vehicle ahead is highly reflective, such as a container on a

truck.

• The vehicle’s headlights are damaged or dirty.

• The vehicle is listing or tilting, due to a flat tire, a trailer being towed etc.

• The high beam and low beam are repeatedly being switched between in

an abnormal manner.

• The driver believes that the high beam may be causing problems or dis-

tress to other drivers or pedestrians nearby.

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4-3. Operating the lights and wipers

■Temporarily lowering sensor sensitivity

The sensitivity of the sensor can be temporarily lowered.

1

Turn the power switch off while the following conditions are met.

• The headlight switch is in the

or

position.

• The headlight switch lever is in high beam position.

• Automatic High Beam switch is on.

2

3

Turn the power switch to ON mode.

2

Within 60 seconds after step , repeat pulling the headlight switch lever to

the original position then pushing it to the high beam position quickly 10

times, then leave the lever in high beam position.

4

If the sensitivity is changed, the Automatic High Beam indicator is turn on

and off 3 times.

Automatic High Beam (headlights) may turn on even the vehicle is stopped.

■If “Headlight System Malfunction Visit Your Dealer” is displayed on the

multi-information display

The system may be malfunctioning. Have the vehicle inspected by your Toy-

ota dealer.

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Operating the lights and wipers -> Automatic High Beam for Your Toyota Prius 4 Door Fourth Generation (2016-2022)

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