warning light TOYOTA COROLLA HYBRID 2023 Manual Online

3606-3. Do-it-yourself maintenance
■Back-up lights
1 Open the trunk lid, remove
the clips, and pull back the
cover.
2 Turn the bulb base counter-
clockwise and remove it.
3 Remove the light bulb.
4 When installing, reverse the
steps listed.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. Fail-
ure to do so may result in heat
damage, fire, or water entering
the light unit. This may damage
the lights or cause condensa-
tion to build up on the lens.
■To prevent damage or fire
Make sure bulbs are fully seated
and locked.

361
7
7
When trouble arises
When trouble arises
.7-1. Essential informationEmergency flashers .... 362
If your vehicle has to be stopped in an emergency.................................. 363
If the vehicle is submerged or water on the road is ris-
ing ............................. 364
7-2. Steps to take in an emer- gency
If your vehicle needs to be towed......................... 366
If you think something is wrong ........................ 370
If a warning light turns on or a warning buzzer sounds
.................................. 372
If a warning message is dis- played........................ 382
If you have a flat tire (vehi- cles without spare tire).................................. 387
If you have a flat tire (vehi- cles with a spare tire)
.................................. 398
If the hybrid system will not start ........................... 406
If you lose your keys ... 407
If the electronic key does not operate properly .. 408
If the 12-volt battery is dis- charged ..................... 410If your vehicle overheats
.................................. 414
If the vehicle becomes stuck .................................. 417

3727-2. Steps to take in an emergency
■Brake system warning light (warning buzzer)
■Brake system warning light (warning buzzer)
■High coolant temperature warning light* (warning buzzer)
*: This light illuminat es on the multi-information display.
If a war ning light tur ns on or a war ning 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.
Actions to the warning lights or warning buzzers
Warning lightDetails/Actions
(U.S.A.)
or
(Red)
(Canada)
Indicates that:
 The brake fluid level is low; or
 The brake system is malfunctioning
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. Continuing to drive the vehi-
cle may be dangerous.
Warning lightDetails/Actions
(Yellow)
Indicates a malfunction in:
The regenerative braking system;
 The electronically contr olled brake system; or
 The parking brake system
 Have the vehicle inspected by your Toyota dealer
immediately.
Warning lightDetails/Actions
Indicates that the engine c oolant temperature is exces-
sively high
 Immediately stop the vehicle in a safe place.
Handling method ( P.414)

3737-2. Steps to take in an emergency
7
When trouble arises
■Hybrid system overheat warning light* (warning buzzer)
*: This light illuminat es on the multi-information display.
■Charging system warning light
■Low engine oil pressure warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■Malfunction indicator lamp (warning buzzer)
Warning lightDetails/Actions
Indicates that the temperature of the hybrid system is
excessively high
Stop the vehicle in a safe place.
Handling method ( P.414)
Warning lightDetails/Actions
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Warning lightDetails/Actions
Indicates that the engine oil pressure is excessively low
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Warning lightDetails/Actions
(U.S.A.)
or
(Canada)
Indicates a malfunction in:
The hybrid system;
 The electronic engine control system; or
 The electronic thrott le control system
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.

3747-2. Steps to take in an emergency
■SRS warning light (warning buzzer)
■ABS warning light
■Inappropriate pedal operation warning light* (warning buzzer)
*: This light illuminat es on the multi-information display.
Warning lightDetails/Actions
Indicates a malfunction in:
The SRS airb ag system;
 The front passenger occupan t classification system; or
 The seat belt pretensioner system
 Have the vehicle inspected by your Toyota dealer
immediately.
Warning lightDetails/Actions
(U.S.A.)
or
(Canada)
Indicates a malfunction in:
The ABS; or
 The brake assist system
 Have the vehicle inspected by your Toyota dealer
immediately.
Warning lightDetails/Actions
When a buzzer sounds:
Brake Override System is malfunctioning
 Drive-Start Control is malfunctioning
 Drive-Start Cont rol is operating
 Follow the instructions di splayed on the multi-infor-
mation display. ( P.382)
When a buzzer does not sound:
Brake Override System is operating.
 Release the accelerator pedal and depress the brake
pedal.

3757-2. Steps to take in an emergency
7
When trouble arises
■Electric power steering system warning light (warning
buzzer)
■Low fuel level warning light
■Driver’s and front passenger’s seat belt reminder light (warn-
ing buzzer)*
*: 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. O nce the power switch is turned to ON, the
buzzer sounds. If the seat belt is still un fastened, the buzzer sounds inter-
mittently for a certain period of time after the vehicle reache s a certain
speed.
Front passenger’s seat belt warning buzzer:
The front passenger’s seat belt w arning buzzer sounds to alert the front
passenger that his or her seat belt is not fastened. If the seat belt is unfas-
tened, the buzzer sounds intermittently for a certain period of time after the
vehicle reaches a certain speed.
Warning lightDetails/Actions
(Red/yellow)
Indicates a malfunction in th e EPS (Electric Power Steer-
ing) system
 Have the vehicle inspected by your Toyota dealer
immediately.
Warning lightDetails/Actions
2WD models:
Indicates that remaining fuel is approximately 1.7 gal. (6.4 L
, 1.4 Imp. gal.) or less
AWD models:
Indicates that remaining fuel is approximately 1.6 gal. (6.0 L
, 1.3 Imp. gal.) or less
Refuel the vehicle.
Warning lightDetails/Actions
Warns the driver and/or front passenger to fasten their seat
belts
Fasten the seat belt.
If the front passenger’s se at is occupied, the front
passenger’s seat belt also needs to be fastened to
make the warning light (w arning buzzer) turn off.

3767-2. Steps to take in an emergency
■Rear passengers’ seat belt reminder lights (warning buzzer)*
*: Rear passengers’ seat belt warning buzzer:
The rear passengers’ seat belt warning buzzer sounds to alert t he rear pas-
senger that his or he r seat belt is not fastened. If the seat b elt is unfas-
tened, the buzzer sounds intermittently for a certain period of time, after the
seat belt is fastened and unfast ened and the vehicle reaches a certain
speed.
■Tire pressure warning light
Warning lightDetails/Actions
(4.2-inch dis- play)
(7-inch display)
Warns the rear passengers to fasten their seat belts
 Fasten the seat belt.
Warning lightDetails/Actions
When the light comes on after blinking for approximately 1
minute (a buzzer does not sounds):
Malfunction in the tire pressure warning system
Have the system checked by your Toyota dealer.
When the light comes o n (a buzzer sounds):
Low tire inflation press ure from natural causes
 After the temperature of the tires has lowered suffi-
ciently, check the inflation pressure of each tire and
adjust them to the specified level. ( P.342)
Low tire inflation pre ssure from flat tire
 Immediately stop the vehic le in a safe place and per-
form the necessary actions. ( P.380)

3777-2. Steps to take in an emergency
7
When trouble arises
■PCS warning light (warning buzzer)
■LTA indicator (warning buzzer)
■LDA indicator (warning buzzer)
■PDA indicator (warning buzzer)
■Dynamic radar cruise control indicator (warning buzzer)
Warning lightDetails/Actions
Indicates a malfuncti on in the PCS (Pre-Collision System).
 Follow the instructions di splayed on the multi-infor-
mation display. ( P.382)
If the PCS (Pre-Collision Syst em) or VSC (Vehicle Stability
Control) system is disabled, the PCS warning light will illu-
minate.
 P. 2 1 2
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in the LTA (Lane Tracing Assist).
Follow the instructions di splayed on the multi-infor-
mation display. ( P.382)
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in the LDA (Lane Departure Alert).
 Follow the instructions di splayed on the multi-infor-
mation display. ( P.382)
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in the PDA (Proactive Driving
Assist).
 Follow the instructions di splayed on the multi-infor-
mation display. ( P.382)
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in the dynamic radar cruise control.
 Follow the instructions di splayed on the multi-infor-
mation display. ( P.382)

3787-2. Steps to take in an emergency
■Cruise control indicator (warning buzzer)
■Driving assist information indicator
*: If equipped
■Slip indicator
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in the cruise control.
Follow the instructions di splayed on the multi-infor-
mation display. ( P.382)
Warning lightDetails/Actions
Indicates either of the follo wing systems may be malfunc-
tioning.
 PCS (Pre-Collision System)
 LDA (Lane Departure Alert)
 Follow the instructions di splayed on the multi-infor-
mation display. ( P.382)
Indicates one of the following systems is malfunctioning or
disabled.
 BSM (Blind Spot Monitor)
*
RCTA(Rear cross traffic alert)*
SEA (Safe Exit Assist)*
 Follow the instructions di splayed on the multi-infor-
mation display. ( P.382)
Warning lightDetails/Actions
Indicates a malfunction in:
The VSC system;
 The TRAC system; or
 The hill-start assist control system
 Have the vehicle inspected by your Toyota dealer
immediately.

3797-2. Steps to take in an emergency
7
When trouble arises
■Parking brake indicator
■Brake hold operated indicator
■Warning buzzer
In some cases, the buzzer may not
be heard due to being in a noisy
location or audio sound.
■Front passenger detection sen-
sor, seat belt reminder and
warning buzzer
●If luggage is placed on the front
passenger seat, the front passen-
ger detection 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 n ot detect a pas-
senger, and the warning light may
not operate properly.
■Operation of rear passengers’
seat belt re minder lights
●The rear passengers’ seat belt
reminder lights will illuminate for
approximately 60 seconds after
either rear door has been opened
and closed.
●If any rear seat belt is fastened
and then unfastened, the corre-
sponding light for that seat will illu-
minate continuously . If either rear
door is opened and closed while a
rear passengers’ seat belt light is
illuminated, it will tu rn off approxi-
mately 60 seconds after the door
is closed.
■SRS warning light
This warning light system monitors
the airbag sensor assembly, front
impact sensors, side impact sensors
(front door), side impact sensors
(front), driver’s seat position sensor,
driver’s seat belt buckle switch, front
passenger seat belt buckle switch,
“AIR BAG ON” indicator light, “AIR
BAG OFF” indicator light, seat belt
pretensioners, airbags, intercon-
necting wiring and power sources.
(  P. 3 2 )
■Electric power steering system
warning light (warning buzzer)
When the 12-volt battery charge
becomes insufficient or the voltage
temporarily drops, the electric power
Warning lightDetails/Actions
(Flashes) (U.S.A.)
or
(Flashes)
(Canada)
It is possible that the parking brake is not fully engaged or
released
 Operate the parking brake switch once again.
This light comes on the parking brake is not released. If the
light turns off after the parking brakes is fully released, the
system is operating normally.
Warning lightDetails/Actions
(Flashes)
Indicates a malfunction in the brake hold system
 Have the vehicle inspected by your Toyota dealer
immediately.