warning light TOYOTA C-HR 2018 1.G Repair Manual

3806-3. Do-it-yourself maintenance
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■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. 381)
● 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.
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.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your
Toyota dealer as soon as possible.

3936-3. Do-it-yourself maintenance
6
Maintenance and care
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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.
● Do not attempt to repair or disassemble light bulbs, connectors, electric
circuits or component parts.
Doing so may result in death or serious injury due to electric shock.
■ 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.

395
7When trouble arises
C-HR_OM_USA_OM10526U7-1. Essential information
Emergency flashers .......... 396
If your vehicle has to be stopped in an
emergency ...................... 397 7-2. Steps to take in an
emergency
If your vehicle needs to be towed ......................... 399
If you think something is wrong .............................. 406
Fuel pump shut off system ............................ 407
If a warning light turns on or a warning buzzer
sounds ............................ 408
If a warning message is displayed......................... 418
If you have a flat tire.......... 423
If the engine will not start ................................. 434
If the electronic key does not operate
properly (vehicles with a
smart key system) ........... 436
If the vehicle battery is discharged ...................... 439
If your vehicle overheats ........................ 443
If the vehicle becomes stuck ............................... 446

4087-2. Steps to take in an emergency
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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
(U.S.A.)
(Red) (Canada)
Brake system warning light (warning buzzer) Indicates that:
• Low brake fluid; or
• The brake system is malfunctioning.
→ Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer
Continuing to drive the vehicle may be dangerous.
*1
Low engine oil pressure wa rning light (warning buzzer)
Indicates abnormal engine oil pressure
The warning light may come on if the engine oil pressure
is too low.
A buzzer also sounds.
→ Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer
Continuing to drive the vehicle may be dangerous.
*1Charging 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

4097-2. Steps to take in an emergency
7
When trouble arises
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(U.S.A.)
(Canada)
Malfunction indicator lamp (warning buzzer) Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic continuously variable transmission.
→ Have the vehicle inspected by your Toyota dealer
immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system.
→ Have the vehicle inspected by your Toyota dealer
immediately.
(U.S.A.)
(Canada)
ABS warning light Indicates a malfunction in:
• The ABS; or
• The brake assist system.
→ Have the vehicle inspected by your Toyota dealer
immediately.
(Red/yellow)
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 (Vehicle Stability Control) system;
• The TRAC (Traction Control) system; or
• The hill-start assist control system.
The light will flash when the VSC or the TRAC is operat-
ing. ( →P. 280)
→ Have the vehicle inspected by your Toyota dealer
immediately.
Warning lightWarning light/Details/Actions

4107-2. Steps to take in an emergency
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(Yellow)
Brake system warning lightIndicates a malfunction in the electric parking brake
→ Have the vehicle inspected by your Toyota dealer
immediately.
PCS warning light
When the warning light flashes (and a buzzer sounds):
Indicates a malfunction in the PCS (Pre-Collision System)
→ Have the vehicle inspected by your Toyota dealer
immediately.
When the warning light illuminates:
Indicates that the PCS (Pre-Collision System) is temporar-
ily unavailable, possibly due to either of the following:
• An area around the radar sensor or camera sensor being dirty or covered with condensation, ice, stickers,
etc.
→ Clear the dirt, condensation, ice, stickers, etc.
(→P. 206, 207)
• Radar sensor or camera sensor operational conditions (such as temperature, etc.) being not met
→ Driving is possible in th is case. The PCS (Pre-Colli-
sion System) will be enabled if the operational condi-
tions (such as temperature, etc.) are met again.
When the warning light is illuminated:
• Either the VSC (Vehicle Stability Control) system or PCS (Pre-Collision System) is disabled or both are disabled.
→ To enable the PCS, enable both the VSC system and
PCS. ( →P. 215, 281)
*2
(Flashes) (U.S.A.)
(Flashes) (Canada)
Parking brake indicator (warning buzzer) It is possible that the parking brake is not fully engaged or
released
→ Operate the parking brake switch once again.
This light 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.
Warning lightWarning light/Details/Actions

4117-2. Steps to take in an emergency
7
When trouble arises
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Low fuel level warning lightIndicates that remaining fuel is approximately 2.0 gal.
(7.5 L, 1.6 Imp.gal.) or less
→ Refuel the vehicle.
*3
Driver’s and front passenger’ s seat belt reminder light
(warning buzzer) Warns the driver and/or front passenger to fasten their
seat belts.
→ Fasten the seat belt.
If the front passenger seat is occupied, the front pas-
senger’s seat belt also needs to be fastened to make
the warning light (warning buzzer) off.
*3
(On the center panel)
Rear passengers’ seat belt reminder lights (warning
buzzer) Warn the rear passengers to fasten their seat belts
→ Fasten the seat belt.
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes ( →P. 414)
• Flat tire ( →P. 423)
→ Adjust the tire inflation pressure to the specified
level.
The light will turn off af ter 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. 415)
→ Have the system checked by your Toyota dealer.
*1High engine coolant temperature warning light (warning
buzzer)
Indicates that the engine coolant temperature is too high
→ P. 443
Warning lightWarning light/Details/Actions

4127-2. Steps to take in an emergency
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*1: This light illuminates on the multi-information display.
*2: Parking brake engaged warning buzzer:A buzzer will sound if the vehicle is driven at a speed of approximately
3 mph (5 km/h) or more.
*3: Driver’s seat belt warning buzzer: The driver’s seat belt warning buzzer sounds to alert the driver that his or
her seat belt is not fastened. Once the engine switch is turned to the “ON”
position (vehicles without smart key system) or IGNITION ON mode (vehi-
cles with smart key system), the buzzer sounds for 6 seconds. If the vehi-
cle reaches a speed of 12 mph (20 km/h), the buzzer sounds once. If the
seat belt is still unfastened after 24 seconds, the buzzer will sound intermit-
tently for 6 seconds. Then, if the seat belt is still unfastened, the buzzer will
sound in a different tone for 90 more seconds.
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. 418
*1
Brake Override System
Indicates that the accelerator and brake pedals are being
depressed simultaneously, and the Brake Override Sys-
tem is operating.
→ Release the accelerator pedal and depress the brake
pedal.
Indicates a malfunction in the Brake Override System
(with warning buzzer)
→ Have the vehicle inspected by your Toyota dealer
immediately.
Drive-Start Control Indicates that the shift position was changed and Drive-
Start Control was operated while depressing the accelera-
tor pedal.
→ Momentarily release the accelerator pedal.
Indicates a malfunction in the Drive-Start Control system
(with warning buzzer)
→ Have the vehicle inspected by your Toyota dealer
immediately.
Warning lightWarning light/Details/Actions

4137-2. Steps to take in an emergency
7
When trouble arises
C-HR_OM_USA_OM10526UFront passenger’s seat belt warning buzzer:
The front passenger’s seat belt warning buzzer sounds to alert the front
passenger that his or her seat belt is not fastened. The buzzer sounds
once if the vehicle reaches a speed of 12 mph (20 km/h). If the seat belt is
still unfastened after 24 seconds, the buzzer will sound intermittently for 6
seconds. Then, if the seat belt is still unfastened, the buzzer will sound in a
different tone for 90 more seconds.
Rear passengers’ seat belt warning buzzer:
The rear passengers’ seat belt warning buzzer sounds to alert the rear
passengers that his or her seat belt is not fastened. If the vehicle reaches a
speed of 12 mph (20 km/h), the buzzer will sound intermittently for 6 sec-
onds. Then, if the seat belt is still unfastened, the buzzer will sound in a dif-
ferent tone for 24 more seconds.
■
SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front door), side impact sensors (front), side
impact sensors (rear), driver’s seat posit ion sensor, driver’s seat belt buckle
switch, front passenger occupant classification system, “AIR BAG ON” indica-
tor light, “AIR BAG OFF” indicator li ght, front passenger’s seat belt buckle
switch, driver’s seat belt pretensioner, front passenger’s seat belt preten-
sioner and force limiter, airbags, interconnecting wiring and power sources.
( →P. 32)
■ 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 sound.
■ If the malfunction indicator la mp 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 your Toyota dealer.
■ Front passenger detection sensor, seat belt reminder and warning
buzzer
● If luggage is placed on the front passenger seat, the front passenger de\
tec-
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.

4147-2. Steps to take in an emergency
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Warning light operations for unf astened rear passenger seat belts
● When opening and closing the rear 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 rear doors are opened and closed while the warning light is on,
the warning light will turn off after approximately 34 seconds.
■
When the tire pressure warning light comes on
Inspect the appearance of the tire to check that the tire is not punctured.
If the tire is punctured: → P. 423
If the tire is not punctured:
Carry out the following procedure after the tire temperature has lowered
sufficiently.
●Check the tire inflation pressure and adjust to the appropriate level.
●If the warning light does not go out even after several minutes, check
that the tire inflation pressure is at the specified level and carry out ini-
tialization. ( →P. 355)
The warning light may come on again if the above operations are con-
ducted without first allowing the tire temperature to lower sufficiently.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such
as natural air leaks and tire inflat ion pressure changes caused by tem-
perature. In this case, adjusting the ti re inflation pressure will turn off the
warning light (afte r a few minutes).
■When a tire is replaced with a spare tire
The compact spare tire is not equipped with a tire pressure warning valve
and transmitter. If a tire goes flat, the tire pressure warning light will not
turn off even though the flat tire ha s been replaced with the spare tire.
Replace the spare tire with the repair ed tire and adjust the tire inflation
pressure. The tire pressu re warning light will go off after a few minutes.
■Conditions that the tire pressure warning system may not function
properly
→ P. 3 5 8