warning light TOYOTA YARIS HATCHBACK 2016 Service Manual

2296-3. Do-it-yourself maintenance
6
Maintenance and care
WARNING
■When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drive train as well as
dangerous handling characteristics, which may lead to an accident
resulting in death or serious injury.
●Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
●Do not use tire sizes other than those recommended by Toyota.
●Do not mix differently constructed ti res (radial, bias-belted or bias-ply
tires).
●Do not mix summer, all season and snow tires.
●Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
●Do not tow if your vehicle has a compact spare tire installed.
■When initializing the tire pressure warning system (vehicles with a
tire pressure warning system)
Do not operate the tire pressure warning reset switch without first
adjusting the tire inflation pressure to the specified level. Otherwise, the
tire pressure warning light may not come on even if the tire inflation
pressure is low, or it may come on when the tire inflation pressure is
actually normal.

2466-3. Do-it-yourself maintenance
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. ( P. 248)
● If the replaced fuse blows again, have the vehicle inspected by your Toyota
dealer.
■ If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■ When replacing light bulbs
Toyota recommends that you use genuine Toyota products designed for this
vehicle. Because certain bulbs are connected to circuits designed to prevent
overload, non-genuine parts or parts not designed for this vehicle may be
unusable.
■ When reinstalling the cover (type C fuse box)
Reinstall the cover, and then hook the
rubber strip’s groove onto the cover.
WARNING
■ To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or
injury.
● Never use a fuse of a higher amperage rating than that indicated, or use\
any other object in place of a fuse.
● Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
● Do not modify the fuses or fuse boxes.

2596-3. Do-it-yourself maintenance
6
Maintenance and care
■When installing the rubber cover of the headlight
Ensure the rubber cover is securely attached.
■ LED Lights
The high mounted stoplight and daytime running lights (LED type) consists of
a number of LEDs. If any of the LEDs burn out, take your vehicle to your Toy-
ota dealer to have the light replaced.
■ Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not
indicate a malfunction. Contact your Toyota dealer for more information in the
following situations:
●Large drops of water have built up on the inside of the lens.
● Water has built up inside the headlight.
■ When replacing light bulbs
P. 246 Fit the rubber cover outer circumfer-
ence in firmly.
Fit the rubber cover around the light
bulb in until the light bulb plug can be
seen.
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.
1
2

261
7When trouble arises
7-1. Essential informationEmergency flashers .......... 262
If your vehicle has to be stopped in
an emergency ................. 263
7-2. Steps to take in an emergency
If your vehicle needs to be towed ......................... 265
If you think something is wrong .............................. 270
Fuel pump shut off system ............................ 271
If a warning light turns on or a warning buzzer
sounds ............................ 272
If you have a flat tire.......... 281
If the engine will not start .. 294
If the shift lever cannot be shifted from P (vehicles
with an automatic
transmission) .................. 296
If the vehicle battery is discharged ...................... 297
If your vehicle overheats ... 300
If the vehicle becomes stuck ............................... 303

2707-2. Steps to take in an emergency
If you think something is wrong
●Fluid leaks under the vehicle
(Water dripping from the air co nditioning after use is normal)
● Flat-looking tires or uneven tire wear
● High engine coolant temperature warning light flashes or comes on
● Low engine coolant temperature indicator comes on or does not
come on continuously
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
● Engine misfire, stumbling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, spon gy feeling, pedal almost touches
the floor
If you notice any of the follow ing symptoms, your vehicle proba-
bly needs adjustment or repair. Contact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

2727-2. Steps to take in an emergency
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 your Toyota dealer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
(Except Canada)
(Canada)
Brake system warning light (warning buzzer)*1
• 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 your Toyota dealer. Continuing to drive the vehi-
cle 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 your Toyota dealer.
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 your Toyota dealer.
(Red warning light
flashes or comes on)
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. 300

2737-2. Steps to take in an emergency
7
When trouble arises
(Except Canada)(Canada)
Malfunction indicator lampIndicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system;
• The electronic automatic transmission control system.
 Have the vehicle inspected by your Toyota dealer
immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system.
 Have the vehicle inspected by your Toyota dealer
immediately.
(Except Canada)
(Canada)
ABS warning lightIndicates a malfunction in:
• The ABS; or
• The brake assist system.
 Have the vehicle inspected by your Toyota dealer
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 your Toyota dealer
immediately.
Slip indicator
Indicates a malfunction in:
• The VSC system; or
• The TRAC system.
 Have the vehicle inspected by your Toyota dealer
immediately.
Warning lightWarning light/Details/Actions

2747-2. Steps to take in an emergency
(Yellow)
Cruise control indicator*2
Indicates a malfunction in the cruise control system.
 Have the vehicle inspected by your Toyota dealer
immediately.
Open door warning light (warning buzzer)*3
Indicates that one or more of the doors is not fully closed.
 Check that all the side doors and back door are
closed.
Low fuel level warning light
Indicates that remaining fuel is about 1.7 gal. (6.3 L,
1.4 Imp.gal.) or less.
 Refuel the vehicle.
Driver’s and front passenger’s seat belt reminder light
(warning buzzer)
*4
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.
Tire pressure warning light (except Canada) When the light comes on: Low tire inflation pressure
such as
• Natural causes ( P. 277)
• Flat tire ( P. 281)
 Adjust the tire inflation pressure to the specified
level.
The light will turn off after a few minutes. In case
the light does not turn off even if the tire inflation
pressure is adjusted, have the system checked by
your Toyota dealer.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system.
(  P. 278)
 Have the system checked by your Toyota dealer.
Low windshield washer fluid warning light*2
Indicate that the washer fluid level is low.
 Add washer fluid ( P. 221)
Warning lightWarning light/Details/Actions

2757-2. Steps to take in an emergency
7
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 3 mph [5 km/h]).
*2: If equipped
*3: Open door warning buzzer: A buzzer will sound if the vehicle reaches a speed of 3 mph (5 km/h) or
more with any door open.
*4: Driver’s and front passenger’s seat belt buzzer: The driver’s and passenger’s seat belt buzzer sounds to alert the driver
and front passenger that his or her seat belt is not fastened. Once the
engine switch is turned to the “ON” or “START” position, the buzzer sounds
for 6 seconds. The buzzer sounds once if the driver’s or front passenger’s
seat belt is unfastened when the vehicle reaches a speed of 12 mph
(20 km/h). Then, if the seat belt is still unfastened after 30 seconds elapse,
the buzzer will sound intermittently for approximately 10 seconds, followed
by a different tone for approximately 20 more seconds.
*5: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s ManualSupplement” for the maintenance interval applicable to your vehicle.
Maintenance required reminder light (except Canada) Indicates that maintenance is required according to the
driven distance on the maintenance schedule.
*5
Illuminates for about 3 seconds and then flashes for about
15 seconds approximately 4500 miles (7200 km) after the
reminder light has been reset.
 If necessary, perform maintenance.
Comes on and remains on if the distance driven exceeds
5000 miles (8000 km) after the reminder light has been
reset. (The indicator will not work properly unless the
reminder light has been reset.)
 Perform the necessary maintenance. Please reset the
reminder light after the maintenance is performed.
(P. 201)
Warning lightWarning light/Details/Actions

2767-2. Steps to take in an emergency
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors, driver’s seat belt buckle switch, front passen-
ger occupant classification system (ECU and sensors), “AIR BAG ON” indica-
tor, “AIR BAG OFF” indicator, front passenger’s seat belt buckle switch, seat
belt pretensioner assemblies, airbags, interconnecting wiring and power
sources. ( P. 34)
■ Front passenger detection sensor, passenger seat belt reminder and
warning buzzer
● If luggage is placed on the front passenger seat, the front passenger detec-
tion sensor may cause the warning light to flash and the warning buzzer to
sound 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.
■ 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.
■ If the malfunction indicator la mp comes on while driving
First check the following:
● Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The malfunction indicator lamp will go off after several driving trips.
If the malfunction indicator lamp does not go off even after several trips, con-
tact your Toyota dealer as soon as possible.
■
When the tire pressure warning light comes on (vehicles with a tire
pressure warning system)
Check the tire inflation pressure and adjust to the appropriate level. Push-
ing the tire pressure warning reset switch will not turn off the tire pressure
warning light.