ignition TOYOTA YARIS HATCHBACK 2020 (in English) Workshop Manual

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
1933-4. Switches and Controls
3
When Driving
●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 switc hed 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 turn ed 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.
Switch PositionOFFAUTO
Ignition PositionON
ACC or
OFF
ON
ACC or
OFF
ON
ACC or
OFF
ON
ACC or
OFF
HeadlightsOffOffAuto*2Auto*3OffOffOnOn*5
Daytime running lightsOn*1OffOn*4OffOn*1OffOffOff
Taillights
Parking lights
License plate lights
Side-marker lights
Dashboard illumination
OffOffAuto*2Auto*3OnOn*5OnOn*5

194
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
3-4. Switches and Controls
When the lights are turned on, the
lights-on indicator light in the com-
bination 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 s enses the surrounding lightness
or darkness and automatically turns the headlights, other exter ior
lights and dashboard illumination on or off.
■ Headlights
●If the light switch is left on, the lights will automatically switch off approxi-
mately 30 seconds after switching the ignition off.
The time setting can be changed.
Refer to Customizable Features on P. 555.
● To prevent discharging the battery, do not leave the lights on while the
engine is off unless safety requires them.
■ Auto-light control
●The headlights, other exterior lights and dashboard illuminatio n 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 contin-
uously dark for several minutes such as inside long tunnels, tr affic 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 cont rol for sev-
eral seconds, bad weather conditions are determined and the hea dlights
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 un til a beep
sound is heard.
To adjust the brightness of the dashboard illumination:
Refer to Dashboard Illumination on P. 169.
● The sensitivity of the auto-light control may be changed.
Refer to Customizable Features on P. 555.

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
1953-4. Switches and Controls
3
When Driving
NOTICE
●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 th e wip-
ers activate automatically. If you are going to clean the windshield, be sure
the wipers are turned off completely when it is particularly te mpting to
leave the engine running. This is particularly important when clearing ice
and snow.
● Do not shade the light sensor by adher-
ing a sticker or a label on the wind-
shield. Otherwise the light sensor will
not operate correctly.

198
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
3-4. Switches and Controls
Fog Lights
The fog lights can be used when the ignition is switched ON.
The fog lights turn on when the
fog light switch is turned to the
position and turn off when the
switch is turned to the OFF posi-
tion.
The fog lights turn on when the
headlights are turned on. They will
not turn on if the headlight switch is
in the position or OFF posi-
tion.
● The fog lights will turn off when the headlights are set at hig h beams.
● With auto-light control:
If the fog light switch is in the position and the headlight switch is in the
AUTO position, the fog lights will turn on when the headlights, the exterior
lights and dashboard illumination turn on.
: If equipped
Use this switch to turn on the fog lights. The fog lights will
improve visibility at night and during foggy conditions.
Fog light switch

199
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
3-4. Switches and Controls
3
When Driving
Turn and Lane-Change Signals
The ignition must be switched ON to use the turn and lane-chang e
signals.
Move the signal lever down (for a
left turn) or up (for a right turn) to
the stop position. The signal will
self-cancel after the turn is com-
pleted.
If the indicator light continues to
flash after a turn, manually return
the lever to its original position.
The turn signal indicators (green)
in the combination meter flash
according to the operation of the
turn signal lever to show which
signal is working.
● If an indicator light stays on without flashing or if it flashes abnormally, one
of the turn signal bulbs may be burned out.
● A customized function is available to change the turn indicator sound vol-
ume. ( P. 555)
Move the lever halfway toward th e direction of the lane change—until
the indicator flashes—and hold i t there. It will return to the off position
when released.
Turn Signals
Right turn
Right lane change
OFF
Left lane change
Left turn
Lane-Change Signals

201
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
3-4. Switches and Controls
3
When Driving
Windshield Wipers and Washer
The ignition must be switched ON to use the wipers.
Because heavy ice and snow can jam the wiper blades, the wiper motor is
protected from motor breakdown, overheating and possible fire b y a circuit
breaker. This mechanism will automatically stop operation of th e blades, but
only for about 5 minutes.
If this happens, turn off the wiper switch and park off the rig ht-of-way, and
remove the snow and ice.
After 5 minutes, turn on the switch and the blades should opera te normally. If
they do not resume functioning, consult your Toyota dealer as s oon as possi-
ble. Drive to the side of the road and park off the right-of-wa y. Wait until the
weather clears before trying to drive with the wipers inoperative.
WARNING
■ Use only windshield washer fluid or plain water in the reservoir
Using radiator antifreeze as washer fluid is dangerous. If sprayed on the
windshield, it will dirty the windshield, affect your visibilit y, and could result
in an accident.
■ Only use windshield washer fluid mixed with anti-freeze protect ion in
freezing weather conditions
Using windshield washer fluid without anti-freeze protection in freezing
weather conditions is dangerous as it could freeze on the windshield and
block your vision which could cause an accident. In addition, m ake sure the
windshield is sufficiently warmed using the defroster before spraying the
washer fluid.

204
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
3-4. Switches and Controls
●Switching the auto-wiper lever from the OFF to the AUTO positio n while
driving activates the windshield wipers once, after which they operate
according to the rainfall amount.
● The auto-wiper control may not operate when the rain sensor tem perature is
about -10 °C (14 °F) or lower, or about 85 °C (185 °F) or higher.
● If the windshield is coated with water repellent, the rain sens or may not be
able to sense the amount of rainfall correctly and the auto-wip er control may
not operate properly.
● If dirt or foreign matter (such as ice or matter containing sal t water) adheres
to the windshield above the rain sensor, or if the windshield i s iced, it could
cause the wipers to move automatically. However, if the wipers cannot
remove this ice, dirt or foreign matter, the auto-wiper control will stop opera-
tion. In this case, set the wiper lever to the low speed positi on or high speed
position for manual operation, or remove the ice, dirt or forei gn matter by
hand to restore the auto-wiper operation.
● If the auto-wiper lever is left in the AUTO position, the wipers could operate
automatically from the effect of strong light sources, electrom agnetic waves,
or infrared light because the rain sensor uses an optical senso r. It is recom-
mended that the auto-wiper lever be switched to the OFF positio n other than
when driving the vehicle under rainy conditions.
● The auto-wiper control functions can be turned off. Refer to Cu stomizable
Features on P. 555
NOTICE
● When the wiper lever is in the AUTO position and the ignition is switched
ON, the wipers may move automatically in the following cases:
• If the windshield above the rain sensor is touched or wiped with a cloth.
• If the windshield is struck with a hand or other object from e ither outside
or inside the vehicle.
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 damaged when the wipers acti-
vate automatically. If you are going to clean the windshield, be sure the
wipers are turned off completely (when it is most likely that t he engine is
left running) this is particularly important when clearing ice and snow.
●Do not shade the rain sensor by adher-
ing a sticker or a label on the wind-
shield. Otherwise the rain sensor will
not operate correctly.

206
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
3-4. Switches and Controls
Rear Window Wiper and Washer
The ignition must be switched ON to use the wiper.
Turn the wiper on by turning the
rear wiper/washer switch.
To spray washer fluid, turn the rear wiper/washer switch to eit her of
the position. After the switch is removed, the washer will stop.
If the washer does not work, inspect the fluid level ( P. 402). If the
fluid level is normal and the washer still does not work, consu lt your
Toyota dealer.
: If equipped
Rear Window Wiper
Switch PositionWiper operation
OFFStop
INTIntermittent
ONNormal
Rear Window Washer

207
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
3-4. Switches and Controls
3
When Driving
Rear Window Defogger
The ignition must be switched ON to use the defogger.
Press the switch to turn on the rear window defogger. The rear win-
dow defogger operates for about 15 minutes and then turns off a uto-
matically.
The indicator light illuminates when the defogger is operating.
To turn off the rear window defogger before the 15 minutes has
elapsed, press the switch again.
This defogger is not designed for melting snow. If there is an accumulation of
snow on the rear window, remove it before using the defogger.
To turn on the mirror defoggers, switch the ignition ON and pre ss the
rear window defogger switch ( P. 207).
The rear window defogger clears fog from the rear window.
Manual Climate ControlFully Automatic Climate Con-
trol
NOTICE
Do not use sharp instruments or window cleaners with abrasives to clean
the inside of the rear window surface. They may damage the defo gger grid
inside the window.
Mirror Defogger (if equipped)
Indicator lightIndicator light

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
2173-6. ABS/TCS/DSC
3
When Driving
This indicator light stays on for a
few seconds when the ignition is
switched ON. If the TCS or DSC is
operating, the indicator light
flashes.
If the light stays on, the TCS, DSC or the brake assist system may
have a malfunction and they may not operate correctly. Take you r
vehicle to your Toyota dealer.
● In addition to the indicator light flashing, a slight lugging s ound will come
from the engine. This indicates that the TCS/DSC is operating p roperly.
● On slippery surfaces, such as fresh snow, it will be impossible to achieve
high rpm when the TCS is on.
TCS/DSC Indicator Light