ignition TOYOTA YARIS HATCHBACK 2020 Owners Manual (in English)

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
4816-3. Battery Runs Out
6
If Trouble Arises
NOTICE
Use only a 12 V booster system. You can damage a 12 V starter, ignition
system, and other electrical parts beyond repair with a 24 V po wer supply
(two 12 V batteries in series or a 24 V motor generator set).

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
4856-5. Overheating
6
If Trouble Arises
■If you find no problems, the engine is cool, and no leaks are
obvious:
Carefully add coolant as required (P. 398).
WARNING
■ Pull over to a safe location, then switch the ignition to off and
make sure the fan is not running before attempting to work near the
cooling fan
Working near the cooling fan when it is running is dangerous. T he fan could
continue running indefinitely even if the engine has stopped an d the engine
compartment temperature is high. You could be hit by the fan an d seriously
injured.
■ Do not remove either cooling system cap when the engine and
radiator are hot
When the engine and radiator are hot, scalding coolant and steam may
shoot out under pressure and cause serious injury.
■ Open the hood ONLY after steam is no longer escaping from the e ngine
Steam from an overheated engine is dangerous. The escaping stea m could
seriously burn you.
NOTICE
● If the cooling fan does not operate while the engine is running, the engine
temperature will increase. Stop the engine and call your Toyota dealer.
● If the engine continues to overheat or frequently overheats, ha ve the cool-
ing system inspected. The engine could be seriously damaged unl ess
repairs are made. Consult your Toyota dealer.

489
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
6-7. Warning/Indicator Lights and Warning Sounds
6
If Trouble Arises
If a War ning Light Turns On or Flashes
The details for some warnings can be viewed on the center displ ay.
If the warning light is turned on, select the icon on the home
screen to display the applications screen.
Select “Vehicle Status Monitor”.
Select “Warning Guidance” to d isplay the current warnings.
Select the applicable warning to view the warning details.
If any of the following warning lights turns on, the system may have a
malfunction. Stop the vehicle in a safe place immediately and c ontact
your Toyota dealer.
If any warning light turns on/flashes, take appropriate action for
each light. There is no problem if the light turns off, however if
the light does not turn off or turns on/flashes again, consult your
Toyota dealer.
Stop Vehicle in Safe Place Immediately
SignalWarning
Brake System Warning Light This warning has the following functions:
• Parking brake warning/Warning light inspection
The light illuminates when the parking brake is applied
with the ignition switched to START or ON. It turns off
when the parking brake is fully released.
• Low brake fluid level warning If the brake warning light remains illuminated even
though the parking brake is released, the brake fluid
may be low or there could be a problem with the brake
system. Park the vehicle in a safe place immediately
and contact your Toyota dealer.
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YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
4936-7. Warning/Indicator Lights and Warning Sounds
6
If Trouble Arises
If any of the following warning lights turns on/flashes, the system may
have a malfunction. Contact your Toyota dealer to have your veh icle
inspected.
Contact Your Toyota Dealer and Have Vehicle Inspected
SignalWarning
Master Warning Light The light turns on when the system has a malfunction.
Operate the center display and verify the content.
Refer to If a Warning Light Turns On or Flashes on P. 489.
ABS Warning LightIf the ABS warning light stays on while you’re driving, the
ABS control unit has detected a system malfunction. If this
occurs, your brakes will function normally as if the vehicle
had no ABS.
Should this happen, consult your Toyota dealer as soon as
possible.
Check Engine Light
If this light illuminates while driving, the vehicle may have
a problem. It is important to note the driving conditions
when the light illuminated and consult your Toyota dealer.
The check engine light may illuminate in the following
cases:
• The fuel tank level being very low or approaching empty.
• The engine’s electrical system has a problem.
• The emission control system has a problem.
• The fuel-filler cap is missing or not tightened securely.
If the check engine light remains on, or it flashes continu-
ously, do not drive at high speeds and consult your Toyota
dealer as soon as possible.
(if equipped)
Automatic Transaxle Warning LightThe light illuminates when the transaxle has a problem.
(Illuminate)
TCS/DSC Indicator LightIf the light stays on, the TCS, DSC or the brake assist sys-
tem may have a malfunction and they may not operate
correctly. Take your vehicle to your Toyota dealer.
Air Bag/Front Seat Belt Pretensioner System Warning
LightA system malfunction is indicated if the warning light con-
stantly flashes, constantly illuminates or does not illumi-
nate at all when the ignition is switched ON. If any of these
occur, consult your Toyota dealer as soon as possible.
The system may not operate in an accident.

4946-7. Warning/Indicator Lights and Warning Sounds
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
■ABS Warning Light
●When the engine is jump-started to charge the battery, uneven r pm occurs
and the ABS warning light may illuminate. If this occurs, it is the result of the
weak battery and does not indicate an ABS malfunction.
Recharge the battery.
● The brake assist system does not operate while the ABS warning light is illu-
minated.
(Flashing)
(if equipped)
Tire Pressure Monitoring System Warning Light
If the tire pressure monito ring system has a malfunc-
tion, the tire pressure warning light flashes for about 1
minute when the ignition is switched ON and then con-
tinues illuminating. Have your vehicle checked by your
Toyota dealer as soon as possible.
(Red)
(Illuminate)
KEY Warning Light
If any malfunction occurs in the keyless entry system, it
illuminates continuously.
Refer to Emergency Operation for Starting the Engine on
P. 162.
(if equipped)
LED Headlight Warning LightThis light illuminates if there is a malfunction in the LED
headlight. Have your vehicle inspected by your Toyota
dealer.
SignalWarning

4966-7. Warning/Indicator Lights and Warning Sounds
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
Take the appropriate action and verify that the warning light turns off.
Taking Action
SignalWarningAction to be taken
Low Fuel Warning Light The light turns on when the
remaining fuel is about 2.3
gal. (9.0 L, 1.9 Imp.gal.). Add fuel.
Check Fuel Cap Warning
Light
If the check fuel cap warning
light illuminates while driving,
the fuel-filler cap may not be
installed properly.
Stop the engine and rein-
stall the fuel-filler cap.
Refer to Refueling on
P. 125
Seat Belt Warning LightThe seat belt warning light
turns on if the driver or front
passenger’s seat is occupied
and the seat belt is not fas-
tened with the ignition
switched ON.
If the driver or front passen-
ger’s seat belt is unfastened
(only when the front passen-
ger’s seat is occupied) and
the vehicle is driven at a
speed faster than about 12
mph (20 km/h), the warning
light flashes. After a short
time, the warning light stops
flashing, but remains illumi-
nated.
Fasten the seat belts.
Door-Ajar Warning LightThe light turns on if any door/
trunk lid/liftgate is not closed
securely.
Close the door/trunk lid/
liftgate securely.
(if equipped)
Low Washer Fluid Level
Warning LightThis warning light indicates
that little washer fluid
remains.
Add washer fluid
(P. 402).

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
4976-7. Warning/Indicator Lights and Warning Sounds
6
If Trouble Arises
■KEY Warning Light
Take the appropriate action and verify that the warning light turns
off.
(Illuminate)
(if equipped)
Tire Pressure Monitoring
System Warning Light
When the warning light illu-
minates, and the warning
beep sound is heard (about
3 seconds), tire pressure is
too low in one or more tires.
Inspect the tires and
adjust to the specified
inflation pressure
( P. 4 1 3 ) .
(Amber)
Low Speed Pre-Collision Sys-
tem Warning Light
The light turns on if the wind-
shield is dirty or there is a
malfunction in the system.
Verify the reason why the
warning light is illuminated
on the center display
(P. 489).
If the reason why the
warning light is illuminated
is due to a dirty wind-
shield, clean the wind-
shield.
For any other reasons,
have the vehicle
inspected at your Toyota
dealer.
SignalWarningAction to be taken
SignalCauseAction to be taken
(Red)
(Flashing)
The smart key battery is dead.Replace the key battery
( P. 410).
The smart key is not within the
operation range.
Bring the smart key into
the operation range
(P. 98).The smart key is placed in
areas inside the cabin where it
is difficult for the key to be
detected.
A key from another manufac-
turer similar to the smart key is
in the operation range.Take the key from another
manufacturer similar to
the smart key out of the
operation range.
Without the ignition switched
off, the smart key is taken out of
the cabin, and then all the
doors are closed.
Bring the smart key back
into the cabin.

4986-7. Warning/Indicator Lights and Warning Sounds
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
■Low Fuel Warning Light
The light illumination timing may vary because fuel inside the fuel tank moves
around according to the driving conditions and the vehicle post ure.
■ Seat Belt Warning Light
●The warning light flashes for about 6 seconds if the driver’s s eat belt is not
fastened when the ignition is switched ON.
● To allow the front passenger occupant classification sensor to function prop-
erly, do not place and sit on an additional seat cushion on the front passen-
ger’s seat. The sensor may not function properly because the ad ditional
seat cushion could cause sensor interference.
● If a small child is seated on the front passenger’s seat, the warning light may
not operate.
■ Tire Pressure Monitoring System Warning Light
●
Perform tire pressure adjustment when the tires are cold. Tire pressure
will vary according to the tire temperature, therefore let the vehicle stand
for 1 hour or only drive it 1 mile (1.6 km) or less before adju sting the tire
pressures. When pressure is adjusted on hot tires to the cold i nflation
pressure, the TPMS warning light/beep may turn on after the tir es cool
and pressure drops below specification.
Also, an illuminated TPMS warning light, resulting from the tire air pres-
sure dropping due to cold ambient temperature will remain illum inated
even if the ambient t emperature rises. In this case, it will also be neces-
sary to adjust the tire air pressures. If the TPMS warning ligh t illuminates
due to a drop in tire air pressure, make sure to check and adju st the tire
air pressures.
●Tires lose air naturally over time and the TPMS cannot tell if the tires are
getting too soft over time or you have a flat. However, when you find one
low tire in a set of four-that is an indication of trouble; you should have
someone drive the vehicle slowly forward so you can inspect any low
tire for cuts and any metal objects sticking through tread or s idewall. Put
a few drops of water in the valve stem to see if it bubbles ind icating a
bad valve. Leaks need to be addressed by more than simply reinf lating
the tire as leaks are dangerous - take it to your Toyota dealer .

502
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
6-7. Warning/Indicator Lights and Warning Sounds
Warning Sound is Activated
The lights-on reminder is operable when the time setting*1 of the auto
headlight off function is off.
If lights are on and the ignition is switched to ACC or the ign ition is
switched off, a continuous beep sound will be heard when the driver’s
door is opened.
*1: If the light switch is left on, the auto headlight off function automatically turns off the lights about 30 seconds after switching the ignit ion off. The
time setting can be changed.
Refer to Customizable Features on P. 555.
● When the ignition is switched to ACC, the “Ignition Not Switche d Off (STOP)
Warning Beep” (P. 504) overrides the lights-on reminder.
● A personalized function is available to change the sound volume for the
lights-on reminder.
Refer to Customizable Features on P. 555.
If there is a problem with the air bag/front seat belt pretensi oner sys-
tems and the warning light illu mination, a warning beep sound w ill be
heard for about 5 seconds every minute.
The air bag and front seat belt pretensioner system warning bee p
sound will continue to be heard fo r approximately 35 minutes. Have
your vehicle inspected at your Toyota dealer as soon as possible.
Lights-On Reminder
Air Bag/Front Seat Belt Preten sioner System Warning Beep
WARNING
■Do not drive the vehicle with the air bag/front seat belt prete nsioner
system warning beep sounding
Driving the vehicle with the air bag/front seat belt pretension er system warn-
ing beep sounding is dangerous. In a collision, the air bags an d the front
seat belt pretensioner system will not deploy and this could result in death
or serious injury. Contact your Toyota dealer to have the vehic le inspected
as soon as possible.

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
5036-7. Warning/Indicator Lights and Warning Sounds
6
If Trouble Arises
If the driver’s seat belt is not fastened when the ignition is switched
ON, a beep sound will be heard for about 6 seconds. If the driv er or
the front passenger’s seat belt is not fastened and the vehicle is
driven at a speed faster than about 12 mph (20 km/h), a beep so und
will be heard again for a specified period of time.
Until a seat belt is fastened or a given period of time has ela psed, the
beep sound will not stop even if the vehicle speed falls below 12 mph
(20 km/h).
● To allow the front passenger occupant classification sensor to function prop-
erly, do not place and sit on an additional seat cushion on the front passen-
ger’s seat. The sensor may not function properly because the ad ditional
seat cushion could cause sensor interference.
● If a small child is seated on the front passenger’s seat, the w arning beep
may not operate.
Seat Belt Warning Beep