warning light TOYOTA C-HR 2022 Repair Manual

6686-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
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 clea n dry cloth
to avoid getting moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or c rack.
● 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 headligh t 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.

669
7When trouble arises
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7-1. Essential information
Emergency flashers ........... 670
If your vehicle has to be
stopped in
an emergency .................. 671
If the vehicle is submerged
or water on the road is
rising ................................ 672
7-2. Steps to
take in an emergency
If your vehicle needs to be
towed ............................... 674
If you think
something is wrong.......... 680
If a warning light turns on or
a warning buzzer
sounds ............................. 681
If a warning message is
displayed ......................... 692
If you have a flat tire
(vehicles with an
emergency tire puncture
repair kit).......................... 699
If you have a flat tire
(vehicles with a
spare tire) ........................ 729
If the hybrid system will not
start.................................. 744
If the electronic key does
not operate properly ........ 746
If the 12-volt battery is
discharged ....................... 749
If your vehicle overheats .... 757
If the vehicle becomes
stuck ................................ 762

6817-2. Steps to take in an emergency
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7
When trouble arises
If a war ning light tur ns on or a warning
buzzer sounds
Calmly perform the following actions if any of the warning ligh ts
turn on or flash. If a light turns 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
(Red)
Brake system warning light (warning buzzer)
Indicates that:
• Low brake fluid; or
• Malfunction in the electronically controlled brake 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.
Continuing to drive the vehicle may be dangerous.
*1
Low engine oil pressure warning 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 any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer. 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 any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.

6827-2. Steps to take in an emergency
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Malfunction indicator lamp (warning buzzer)
Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system; or
• The electronic throttle control system.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer.
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.
(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 any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Warning lightWarning light/Details/Actions

6837-2. Steps to take in an emergency
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7
When trouble arises
(Flashes)
Toyota parking assist-sensor OFF indicator (if
equipped)
Indicates a malfunction in the Toyota parking assist-sensor
function
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Indicates that the system is temporarily unavailable, possi-
bly due to a sensor being dirty or covered with ice, etc.
 Follow the instructions displayed on the multi-infor-
mation display. ( P. 462)
(Flashes)
PKSB OFF indicator (if equipped)
When a buzzer sounds:
Indicates a malfunction in the PKSB (Parking Support
Brake) system
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
When a buzzer does not sound:
Indicates that the system is temporarily unavailable, possi-
bly due to a sensor being dirty or covered with ice, etc.
 Follow the instructions displayed on the multi-infor-
mation display. ( P. 483, 692)
(Flashes)
“RCTA OFF” indicator (if equipped)
When a buzzer sounds:
Indicates a malfunction in the RCTA (Rear Crossing Traffic
Alert) function
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
When a buzzer does not sound:
Indicates that the rear bumper around the radar sensor is
covered with dirt, etc. ( P. 450)
 Follow the instructions displayed on the multi-infor-
mation display. ( P. 470)
Warning lightWarning light/Details/Actions

6847-2. Steps to take in an emergency
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Slip indicator
Indicates a malfunction in:
• The VSC (Vehicle Stability Control) system;
• The TRC (Traction Control) system; or
• The hill-start assist control system.
The light will flash when the VSC, TRC, ABS or Trailer
Sway Control is operating. ( P. 534)
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
(Yellow)
Brake system warning light
Indicates a malfunction in:
• The regenerative braking system;
• The electronically controlled brake system; or
• The electric parking brake.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
*1
(Orange)
LTA indicator (warning buzzer) (if equipped)
Indicates a malfunction in the LTA (Lane Tracing Assist)
 Follow the instructions displayed on the multi-infor-
mation display. ( P. 401)
(Flashes or illuminates)
PCS warning light (if equipped)
When a buzzer sounds simultaneously:
Indicates a malfunction has occurred in the PCS (Pre-Col-
lision System).
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
When a buzzer does not sound:
The PCS (Pre-Collision System) has become temporarily
unavailable, corrective action may be necessary.
 Follow the instructions displayed on the multi-infor-
mation display. ( P. 367, 692)
If the PCS (Pre-Collision System) or VSC (Vehicle Stability
Control) system is disabled, the PCS warning light will illu-
minate.
 P. 386
Warning lightWarning light/Details/Actions

6857-2. Steps to take in an emergency
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7
When trouble arises
(Flashes)
Brake hold operated indicator
Indicates a malfunction in the brake hold system
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
*2
(Flashes)
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 ful ly
released, the system is operating normally.
Low fuel level warning light
Indicates that remaining fuel is approximately 6.4 L
(1.6 gal., 1.4 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 fr ont 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.
Warning lightWarning light/Details/Actions

6867-2. Steps to take in an emergency
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Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes ( P. 689)
• Flat tire ( P. 699, 729)
 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 pres-
sure is adjusted, have the system checked by any
authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system ( P. 689)
 Have the system checked by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer.
*1High engine coolant temperature warning light (warning
buzzer)
Indicates that the engine coolant temperature is too high
 P. 757
*1Hybrid system overheat warning light (warning buzzer)
Indicates that the hybrid system has overheated
 Stop the vehicle in a safe place.
Handling method ( P. 759)
Warning lightWarning light/Details/Actions

6877-2. Steps to take in an emergency
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7
When trouble arises
*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 appr oximately
5 km/h (3 mph) or more.
*3: Driver’s and front passenger’s seat belt warning buzzer:
The driver’s and front passenger’s seat belt warning buzzer sou nds to alert
the driver and front passenger that his or her seat belt is not fastened. If
the seat belt is unfastened, the buzzer sounds intermittently f or a certain
period of time after the vehicle reaches a certain speed.
Rear passengers’ seat belt warning buzzer:
The rear passengers’ seat belt warning buzzer sounds to alert t he rear
passenger that his or her seat belt is not fastened. If the sea t belt is unfas-
tened, the buzzer sounds intermittently for a certain period of time, after
the seat belt is fastened and unfastened and the vehicle reache s a certain
speed.
*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 any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Drive-Start Control
Indicates that the shift position was changed and Drive-
Start Control was operated while depressing the accelera-
tor pedal (with warning buzzer).
 Momentarily release the accelerator pedal.
Indicates a malfunction in the Drive-Start Control system
(with warning buzzer)
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Warning lightWarning light/Details/Actions

6887-2. Steps to take in an emergency
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■Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the vol tage tempo-
rarily drops, the electric power steering system warning light may come on
and the warning buzzer may sound.
■ 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 sever al trips.
If the malfunction indicator lamp does not go off, contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer as soon
as possible.
■ Front passenger detection sensor, 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 warnin g 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.
■ Warning light operations for unfastened rear passenger seat belts
● When opening and closing the rear door, the warning light comes on for
approximately a certain period of time.
● 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 a certain perio d of time.
■ When the tire pressure warning light comes on
Inspect the appearance of the tire to check that the tire is no t punctured.
If the tire is punctured: P. 699, 729
If the tire is not punctured:
Carry out the following procedure after the tire temperature ha s lowered suffi-
ciently.
● 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 initialization.
( P. 619)
The warning light may come on again if the above operations are conducted
without first allowing the tire temperature to lower sufficient ly.