Toyota Yaris: Lighting Control / Headlights
Without auto-light control

Turn the headlight switch to turn
the headlights, other exterior
lights and dashboard illumination
on or off.

* 1: The lights are turned on while the vehicle is driven.
* 2: The lights are turned on for the specified period by the
auto headlight off
function.
With auto-light control
Turn the headlight switch to turn
the headlights, other exterior
lights and dashboard illumination
on or off.


* 1: The lights are turned on while the vehicle is driven.
* 2: The lights are turned on by the auto light function.
* 3: The lights are turned on continuously if the ignition is
switched from ON to
any other position with the lights turned on. The lights are turned on for the
specified period by the auto headlight off function.
* 4: The lights are turned on while the vehicle is driven, and
turned off when the
headlights are turned on by the auto light function.
* 5: The lights are turned on for the specified period by the
auto headlight off
function.
When the lights are turned on, the
lights-on indicator light in the combination meter turns on.

Auto-light control (if equipped)
When the headlight switch is in the AUTO position and the ignition
is switched ON, the light sensor senses the surrounding lightness
or darkness and automatically turns the headlights, other exterior
lights and dashboard illumination on or off.
Headlights
Auto-light control
- The headlights, other exterior lights and dashboard illumination may not
turn
off immediately even if the surrounding area becomes well-lit because the
light sensor determines that it is night time if the surrounding area is
continuously dark for several minutes such as inside long tunnels, traffic
jams
inside tunnels, or in indoor parking lots.
In this case, the lights turn
off if the light switch is turned to the OFF position.
- If the headlight switch and the windshield wiper switch are in AUTO, and the
wipers are operated at low or high speed by the auto wiper control for several
seconds, bad weather conditions are determined and the headlights
may be turned on.
- The dashboard illumination can be adjusted by rotating the knob in the
instrument cluster.
Also, the day/night mode can be changed by rotating the
knob until a beep
sound is heard.
To adjust the brightness of the dashboard illumination: Refer to Dashboard
Illumination.
- The sensitivity of the auto-light control may be changed. Refer to
Customizable Features.
NOTICE
- Do not shade the light sensor by adhering a sticker or a label on
the windshield. Otherwise the light sensor will
not operate correctly.

- The light sensor also works as a rain sensor for the auto-wiper
control.
Keep hands and scrapers clear of the windshield when the wiper lever is in
the AUTO position and the ignition is switched ON as fingers could be
pinched or the wipers and wiper blades could be damaged when the wipers activate
automatically. If you are going to clean the windshield, be sure
the wipers are turned off completely when it is particularly tempting to
leave the engine running. This is particularly important when clearing ice
and snow.
The headlights switch between
high and low beams by moving
the lever forward or backward.
When the headlight high-beams
are on, the headlight high-beam
indicator light is turned on...
Other information:
REMOVAL CAUTION / NOTICE / HINT HINT: When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.
Learning completes when vehicle is driven Effect/Inoperative Function When Necessary Procedures are not Performed Necessary Procedures Link Lane tracing assist system Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 second or more...
DESCRIPTION Code Tester Display Measurement Item Trouble Area RoB Output from X20D8 Zero Point Calibration of Steering Angle Sensor Not Acquired History of being unable to obtain the steering angle zero point
Sensor installation
Yaw rate and acceleration sensor (airbag sensor assembly)
Brake CAUTION / NOTICE / HINT NOTICE:
This Vehicle Control History (RoB) may be output during situations when the steering angle sensor zero point calibration temporarily cannot be acquired, such as when the stop light is stuck ON...