warning light TOYOTA YARIS GRMN 2017 Owner's Guide

2686-3. Do-it-yourself maintenance
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■Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following before recharging:
● If recharging with the battery installed on the vehicle, be sure to disconnect
the ground cable.
● Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the battery.
■ After recharging/reconnecting the battery
● Unlocking the doors using the smart entry & start system may not be possi-
ble immediately after reconnecting the battery. If this happens, use the wire-
less remote control or the mechanical key to lock/unlock the doors.
● Start the engine with the engine switch in ACCESSORY mode. The engine
may not start with the engine switch turned off. However, the engine will
operate normally from the second attempt.
● The engine switch mode is recorded by the vehicle. If the battery is recon-
nected, the vehicle will return the engine switch mode to the status it was in
before the battery was disconnected. Make sure to turn off the engine
before disconnect the battery. Take extra care when connecting the battery
if the engine switch mode prior to discharge is unknown.
If the engine will not start even after multiple attempts, contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
WARNING
■ Chemicals in the battery
Batteries contain poisonous and corrosive sulfuric acid and may produce
hydrogen gas which is flammable and explosive. To reduce the risk of death
or serious injury, take the following precautions while working on or near the
battery:
● Do not cause sparks by touching the battery terminals with tools.
● Do not smoke or light a match near the battery.
● Avoid contact with eyes, skin and clothes.
● Never inhale or swallow electrolyte.
● Wear protective safety glasses when working near the battery.
● Keep children away from the battery.

2796-3. Do-it-yourself maintenance
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Maintenance and care
Raise the vehicle until the tire is
slightly raised off the ground.
Remove all the wheel nuts and
the tire.
When resting the tire on the
ground, place the tire so that the
wheel design faces up to avoid
scratching the wheel surface.
WARNING
■ Replacing a flat tire
● Do not touch the disc wheels or the area around the brakes immediately
after the vehicle has been driven.
After the vehicle has been driven the disc wheels and the area around the
brakes will be extremely hot. Touching these areas with hands, feet or
other body parts while changing a tire, etc. may result in burns.
● Failure to follow these precautions could cause the wheel nuts to loosen
and the tire to fall off, resulting in death or serious injury.
• Have the wheel nuts tightened with a torque wrench to 103 N·m
(10.5 kgf·m, 76 ft·lbf) as soon as possible after changing wheels.
• When installing a tire, only use wheel nuts that have been specifically
designed for that wheel.
• If there are any cracks or deformations in the bolt screws, nut threads or
bolt holes of the wheel, have the vehicle inspected by any authorized
Toyota retailer or Toyota authoriz ed repairer, or any reliable repairer.
• When installing the wheel nuts, be sure to install them with the tapered
ends facing inward. ( P. 285)

3146-3. Do-it-yourself maintenance
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WARNING
■Replacing light bulbs
● 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.
■ 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.

315
7When trouble arises
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7-1. Essential information
Emergency flashers ........... 316
If your vehicle has to
be stopped in
an emergency .................. 317
7-2. Steps to take in
an emergency
If your vehicle needs to
be towed .......................... 319
If you think something is
wrong ............................... 325
Fuel pump shut off
system ............................. 326
If a warning light turns on
or a warning buzzer
sounds ............................. 327
If a warning message is
displayed ......................... 332
If you have a flat tire .......... 336
If the engine will not start ... 354
If the electronic key does
not operate properly ........ 356
If the vehicle battery is
discharged ....................... 359
If your vehicle overheats .... 363
If the vehicle becomes
stuck ................................ 367

3277-2. Steps to take in an emergency
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7
When trouble arises
If a warning light turns on or a warning
buzzer sounds
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
*1
Brake system warning light (warning buzzer)
• Low brake fluid
• Malfunction in the brake system
This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is fully
released, the system is operating normally.
 Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer. Continuing to
drive the vehicle may be dangerous.
Charging system warning light
Indicates a malfunction in the vehicle’s charging system.
 Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low.
 Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
High engine coolant temperature warning light
Indicates that the engine is overheating.
As the coolant temperature rises, it changes from flashing
to steady on.
 P. 363

3287-2. Steps to take in an emergency
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Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system;
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Electric power steering system warning light
(warning buzzer)
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Slip indicator
Indicates a malfunction in:
• The VSC system;
• The TRC system; or
• The hill-start assist control.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Low fuel level warning light
Indicates that remaining fuel is about 6.3 L (1.7 gal.,
1.4 Imp.gal.) or less.
 Refuel the vehicle.
Warning lightWarning light/Details/Actions

3297-2. Steps to take in an emergency
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When trouble arises
*1: Parking brake engaged warning buzzer:
The buzzer sounds to indicate that the parking brake is still engaged (with
the vehicle having reached a speed of 5 km/h [3 mph]).
*2: Seat belt buzzer:
The seat belt buzzer sounds to alert the driver, front passenger and rear
passenger that his or her seat belt is not fastened. The buzzer sounds for
30 seconds after the vehicle reaches a speed of at least 20 km/h (12 mph).
Then, if the seat belt is still unfastened, the buzzer will sound in a different
tone for 90 more seconds.
*2
Driver’s and front passenger’s seat belt reminder light
(warning buzzer)
Warns the driver and front passenger to fasten their seat
belts.
 Fasten the seat belt.
If the passenger’s seat is occupied, the front passen-
ger’s seat belt also needs to be fastened to make the
warning light (warning buzzer) turn off.
*2
(On the center panel)
Rear passengers’ seat belt reminder lights
(warning buzzer)
Warns the rear passengers to fasten their seat belts.
 Fasten the seat belt.
Master warning light
A buzzer sounds and the warning light comes on and
flashes to indicate that the master warning system has
detected a malfunction.
 P. 332
Warning lightWarning light/Details/Actions

3307-2. Steps to take in an emergency
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■Front passenger detection sensor and passenger seat belt reminder
● If luggage is placed on a passenger seat, the passenger detection sensor
may cause the warning light to flash even if a passenger is not sitting in the
seat.
● If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.
■ Warning light operations for unfastened rear passenger seat belts
● When opening and closing the side door, the warning light comes on for
approximately 34 seconds.
● When any of the rear seat belts are unfastened, the warning light comes on.
When the side doors are opened and closed while the warning light is on,
the warning light will turn off after approximately 34 seconds.
■ If the malfunction indicator lamp comes on while driving
For some models, the malfunction indicator lamp will come on if the fuel tank
becomes completely empty. If the fuel tank is empty, refuel the vehicle imme-
diately. The malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Toyota retailer or Toyota authorized repai rer, or any reliable repairer as soon
as possible.
■ Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an
audio sound.
■ Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may come on and the
warning buzzer may sounds.

3317-2. Steps to take in an emergency
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When trouble arises
WARNING
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact any authorized
Toyota retailer or Toyota authorized r epairer, or any reliable repairer. The
vehicle will become extremely unstable during braking, and the ABS system
may fail, which could cause an accident resulting in death or serious injury.
■ When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold
firmly and operate using more force than usual.

3327-2. Steps to take in an emergency
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If a warning message is displayed
Master warning light
The master warning light also
comes on or flashes in order to
indicate that a message is
currently being displayed on the
multi-information display*.
Multi-information display
If any of the warning messages are shown again after the following
actions have been performed, contact any authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer.
*: The master warning light may not come on or flash when a warning mes-
sage is displayed.
The multi-information display shows warnings of system mal-
functions, incorrectly performed operations, and messages that
indicate a need for maintenance. When a message is shown,
perform the correction procedure appropriate to the message.