engine overheat TOYOTA COROLLA CROSS HYBRID 2023 Owners Manual

4TABLE OF CONTENTS
Engine compartment ..........350
12-volt battery .................... 356
Tires ................................... 358
Replacing the tire ............... 370
Tire inflation pressure......... 374
Wheels ............................... 376
Air conditioning filter ........... 378
Cleaning the hybrid battery (trac- tion battery) air intake vent......................................... 379
Electronic key battery ......... 382
Checking and replacing fuses ......................................... 384
Headlight aim ..................... 386
Light bulbs .......................... 387
7-1. Essential information Emergency flashers ........... 394
If your vehicle has to be stopped in an emergency .............. 395
If the vehicle is submerged or water on the road is rising
......................................... 396
7-2. Steps to take in an emergency If your vehicle needs to be towed......................................... 397
If you think something is wrong ......................................... 401
If a warning light turns on or a warning buzzer sounds .... 402
If a warning message is dis- played .............................. 412
If you have a flat tire ........... 417
If the hybrid system will not start ......................................... 428
If you lose your keys .......... 429
If the fuel filler door cannot be opened ............................. 430
If the electronic key does not operate properly ............... 431If the 12-volt battery is dis-
charged ............................ 433
If your vehicle overheats .... 438
If the vehicle becomes stuck ......................................... 441
8-1. Specifications Maintenance data (fuel, oil level, etc.) .................................. 444
Fuel information ................. 451
Tire information .................. 453
8-2. Customization Customizable features ....... 463
8-3. Initialization Items to initialize ................ 473
9-1. For owners Reporting safety defects for U.S. owners ............................. 476
Reporting safety defects for Canadian owners ............. 476
Seat belt instructions for Cana- dian owners ..................... 477
SRS airbag instructions for Canadian owners ............. 478
What to do if... (Troubleshooting) ......................................... 486
Alphabetical Index.............. 48
9
7When trouble arises
8Vehicle specifications
9For owners
Index

812-1. Instrument cluster
2
Vehicle status information and indicators
Warning lights inform the driver
of malfunctions in the indicated
vehicle’s systems.
Warning lights
(U.S.A.)
Brake system warning
light
*1 ( P.402)
(Red)
(Canada)
Brake system warning
light
*1 (  P.402)
(Yellow)
Brake system warning
light
*1 ( P.402)
High coolant temperature
warning light
*2 (  P.402)
Hybrid system overheat
warning light
*1, 2 (  P.403)
Charging system warning
light
*2 (  P.402)
Low engine oil pressure
warning light
*2 (  P.403)
(U.S.A.)
Malfunction indicator
lamp
*1 ( P.403)
(Canada)
Malfunction indicator
lamp
*1 ( P.403)
SRS warning light
*1
(  P.404)
(U.S.A.)
ABS warning light*1
(  P.404)
(Canada)
ABS warning light*1
(  P.404)
Inappropriate pedal opera-
tion warning light
*2
(  P.404)
(Red/yel-
low)
Electric power steering
system warning light
*1
(  P.405)
Low fuel leve l warning
light ( P.405)
Driver’s and front passen-
ger’s seat belt reminder
light ( P.405)
*3
*4Rear passengers’
seat belt reminder
lights ( P.406)
Tire pressure warning
light
*1 (  P.406)
(Orange)
LTA indicator ( P.406)
(Orange)
LDA indicator ( P.407)
(Orange) Dynamic radar cruise con-
trol indicator (
P.407)
(Orange) Cruise control indicator
(
 P.407)
(Orange)
PCS warning light*1
(  P.407)
Intuitive parking assist
OFF indicator (if
equipped) ( P.268)
Driving assist information
indicator
*1 (  P.408)
Slip indicator
*1 (  P.408)

852-1. Instrument cluster
2
Vehicle status information and indicators
■Engine speed
On hybrid electric vehicles, engine
speed is precisely controlled in
order to help improve fuel efficiency
and reduce exhaust emissions etc.
There are times when the engine
speed that is displayed may differ
even when vehicle operation and
driving conditions are the same.
■Outside temperature display
●In the following si tuations, the cor-
rect outside tempe rature may not
be displayed, or the display may
take longer than normal to
change:
• When stopped, or driving at low
speeds (less than 12 mph [20
km/h])
• When the outside temperature
has changed suddenly (at the
entrance/exit of a garage, tunnel,
etc.)
●When “--” or “E” is displayed, the
system may be malfunctioning.
Take your vehicle to your Toyota
dealer.
■Liquid crystal display
 P. 9 1
■Customization
The gauges and meters can be cus-
tomized in of the multi-informa-
tion display. ( P.463)
■Changing the display
Press the display change button
until the desired item is dis-
played.
WARNING
■The information display at
low temperatures
Allow the interior of the vehicle to
warm up before u sing the liquid
crystal informat ion display. At
extremely low temperatures, the
information display monitor may
respond slowly, and display
changes may be delayed.
For example, there is a lag
between the driver’s shifting and
the new gear number appearing
on the display. This lag could
cause the driver to downshift
again, causing rapid and exces-
sive engine braking and possibly
an accident resulting in death or
injury.
NOTICE
■To prevent damage to the
engine and its components
●Do not let the indicator needle
of the tachometer enter the red
zone, which indicates the maxi-
mum engine speed.
●The engine may be overheating
if the engine coolant tempera-
ture gauge is in the red zone
(H). In this case, immediately
stop the vehicle in a safe place,
and check the engine after it
has cooled completely.
(  P.438)
Odometer and trip meter
display

892-1. Instrument cluster
2
Vehicle status information and indicators
tomized in of the multi-informa-
tion display. (P. 9 6 )
■Changing the display
Press the display change button
until the desired item is dis- played.
■Display items
 Odometer
Displays the total distance the vehi-
cle has been driven.
 Trip meter A/Trip meter B
Displays the distance the vehicle
has been driven since the meter
was last reset. Trip meters A and B
can be used to record and display
different distances independently.
To reset, display the desired trip
meter and press and hold the dis-
play change button.
The brightness of the instrument
panel lights can be adjusted.
1 Brighter
2 Darker
WARNING
■The information display at
low temperatures
Allow the interior of the vehicle to
warm up before u sing the liquid
crystal informat ion display. At
extremely low temperatures, the
information display monitor may
respond slowly, and display
changes may be delayed.
For example, there is a lag
between the driver’s shifting and
the new gear number appearing
on the display. This lag could
cause the driver to downshift
again, causing rapid and exces-
sive engine braking and possibly
an accident resulting in death or
injury.
NOTICE
■To prevent damage to the
engine and its components
●Do not let the i ndicator needle
of the tachomete r enter the red
zone, which indicates the maxi-
mum engine speed.
●The engine may be overheating
if the engine coolant tempera-
ture gauge is in the red zone
(H). In this case, immediately
stop the vehicle in a safe place,
and check the engine after it
has cooled completely.
(  P.438)
Odometer and trip meter
display
Changing the instrument
panel light brightness

1574-1. Before driving
4
Driving
WARNING
●Avoid revving or racing the
engine.
Running the engine at high
speed while the vehicle is
stopped may cause the exhaust
system to overheat, which could
result in a fire if combustible
material is nearby.
■When the vehicle is parked
●Do not leave glasses, cigarette
lighters, spray cans, or soft
drink cans in the vehicle when it
is in the sun.
Doing so may result in the fol-
lowing:
• Gas may leak from a cigarette lighter or spray can, and may
lead to a fire.
• The temperature inside the vehicle may cause the plastic
lenses and plastic material of
glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray
over the interior of the vehicle,
and may also caus e a short cir-
cuit in the vehicle’s electrical
components.
●Do not leave cigarette lighters in
the vehicle. If a cigarette lighter
is in a place such as the glove
box or on the floor, it may be lit
accidentally when luggage is
loaded or the seat is adjusted,
causing a fire.
●Do not attach adhesive discs to
the windshield or windows. Do
not place containers such as air
fresheners on the instrument
panel or dashboard. Adhesive
discs or containers may act as
lenses, causing a fire in the
vehicle.
●Do not leave a door or window
open if the curved glass is
coated with a metallized film
such as a silver-colored one.
Reflected sunlight may cause
the glass to act a s a lens, caus-
ing a fire.
●Always apply the parking brake,
shift the shift lever to P, stop the
hybrid system and lock the vehi-
cle.
Do not leave the vehicle unat-
tended while the “READY” indi-
cator is illuminated.
If the vehicle is parked with the
shift lever in P but the parking
brake is not set, the vehicle may
start to move, possibly leading
to an accident.
●Do not touch the exhaust pipes
while the “READY” indicator is
illuminated or immediately after
turning the hybrid system off.
Doing so may cause burns.
■When taking a nap in the vehi-
cle
Always turn the hybrid system off.
Otherwise, if you accidentally
move the shift lever or depress
the accelerator pedal, this could
cause an accident or fire due to
hybrid system overheating. Addi-
tionally, if the vehicle is parked in
a poorly ventilated area, exhaust
gases may collect and enter the
vehicle, leading to death or a seri-
ous health hazard.
■When braking
●If the electronically controlled
brake system does not operate,
do not follow other vehicles
closely and avoid hills or sharp
turns that require braking.
In this case, braking is still pos-
sible, but the brake pedal
should be depressed more
firmly than usual. Also, the brak-
ing distance will increase. Have
your brakes fixed immediately.

1724-1. Before driving
considerable distance. After
passing a vehicle, do not for-
get the length of your trailer,
and be sure you have plenty
of room before changing
lanes.
 To maintain engine braking
efficiency and charging sys-
tem performance when using
engine braking, do not put the
transmission in D. If in the S
mode, the hybrid transmission
shift range position must be in
5 or lower.( P.181)
 Instability happens more fre-
quently when descending
steep or long downhill grades.
Before descending, slow
down and downshift. Do not
make sudden downshifts
while descending steep or
long downhill grades.
 Avoid holding the brake pedal
down too long or applying the
brakes too frequently. This
could cause the brakes to
overheat and result in
reduced braking efficiency.
 Due to the added load of the
trailer, your vehicle’s engine
may overheat on hot days (at
temperatures over 85°F
[30°C]) when driving up a long
or steep grade. If the engine
coolant temperature gauge
indicates overheating, imme-
diately turn off the air condi-
tioning (if in use), pull your
vehicle off the road and stop in a safe spot. (
P.438)
 Always place wheel blocks
under both the vehicle’s and
the trailer’s wheels when
parking. Put the transmission
in P and apply the parking
brake. Avoid parking on a
slope, but if unavoidable, do
so only after performing the
following:
1 Apply the brakes and keep
them applied.
2 Have someone place wheel
blocks under both the vehi-
cle’s and trailer’s wheels.
3 When the wheel blocks are in
place, release the brakes
slowly until the blocks absorb
the load.
4 Shift into P and apply the
parking brake.
5 Turn off the hybrid system.
 When restarting after parking
on a slope:
1 With the shift lever in P, start
the hybrid system. Be sure to
keep the brake pedal
depressed.
2 Shift into a forward gear. If
reversing, shift into R.
3 If the parking brake is in man-
ual mode, release the park-
ing brake. ( P.186)
4 Release the brake pedal, and
slowly pull or back away from
the wheel blocks. Stop and
apply the brakes.

4037-2. 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 (warning buzzer)
■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.438)
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.

4127-2. Steps to take in an emergency
■Warning messages
The warning messages explained
below may differ from the actual
messages according to operation
conditions and vehicle specifica-
tions.
■Warning buzzer
A buzzer may sound when a mes-
sage is displayed.
The buzzer may not be audible if the
vehicle is in a noisy location or if the
audio system volume is high.
■If “Engine Oil Level Low Add or
Replace” is displayed
The engine oil leve l is low. Check the level of the engine oil, and add if
necessary.
This message may appear if the
vehicle is stopped on a slope. Move
the vehicle to a l
evel surface and
check to see if the message disap-
pears.
■If “Hybrid System Stopped
Steering Power Low” is dis-
played
This message is displayed if the
hybrid system is stopped while driv-
ing.
When steering wheel operations are
heavier than usual, grip the steering
wheel firmly and operate it using
more force than usual.
■If “Hybrid syste m overheated
Output power reduced” is dis-
played
This message may be displayed
when driving under severe operat-
ing conditions. (For example, when
driving up a l ong steep hill.)
Handling method: P. 4 3 8
■If “Traction battery needs to be
protected. Refrain from the use
of N position.” is displayed
This message may be displayed
when the shift lever is in N.
As the hybrid battery (traction bat-
tery) cannot be charged when the
shift lever is in N, shift the shift lever
to P when the vehicle is stopped.
■If “Traction battery needs to be
protected. Shift into P to
restart.” is displayed
This message is displayed when the
hybrid battery (traction battery)
charge has becom e extremely low
because the shift lever has been left
in N for a certain amount of time.
When operating the vehicle, shift to
P and restart the hybrid system.
■If “Shift is in N Release acceler-
ator before shifting” is dis-
played
The accelerator pedal has been
If a war ning message
is displayed
The multi-information dis-
play shows warnings for
system malfunctions and
incorrectly performed oper-
ations, and messages that
indicate a need for mainte-
nance. When a message is
displayed, perform the
appropriate corrective
action for the message.
If a warning message is dis-
played again after the
appropriate actions have
been performed, contact
your Toyota dealer.
Additionally, if a warning
light comes on or flashes at
the same time that a warn-
ing message is displayed,
take the appropriate correc-
tive action for the warning
light. ( P.402)

4387-2. Steps to take in an emergency
If the engine coolant tempera-
ture gauge enters the red
zone or “Engine Coolant
Temp High Stop in a Safe
Place See Owner’s Manual”
is shown on the multi-informa-
tion display
1 Stop the vehicle in a safe
place and turn off the air con-
ditioning system, and then
stop the hybrid system.
2 If you see steam: Carefully lift
the hood after the steam sub- sides.
If you do not see steam:
Carefully lift the hood.
3 After the hybrid system has
cooled down, inspect the
hoses and radiator core (radi-
ator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
4The coolant level is satisfac-
tory if it is between the “MAX”
and “MIN” lines on the reser-
voir.
Reservoir
“MAX” line
“MIN” line
5 Add coolant if necessary.
If your vehicle over-
heats
The following may indicate
that your vehicle is over-
heating.
The engine coolant tem-
perature gauge ( P.84, 87)
is in the red zone or a loss
of hybrid system power is
experienced. (For example,
the vehicle speed does not
increase.)
 “Engine Coolant Temp High
Stop in a Safe Place See
Owner’s Manual” or “Hybrid
system overheated Output
power reduced” is shown on
the multi-information dis-
play.
 Steam comes out from
under the hood.
Correction procedures

490Alphabetical Index
Preparing and checking before
winter.................................. 291
Battery (traction battery) ......... 71
Blind Spot Monitor (BSM) ...... 252
Bottle holders ......................... 311
Brake Brake hold ............................ 189
Fluid ............................. 354, 449
Parking brake ....................... 186
Regenerative braking ............. 69
Warning light ........................ 402
Brake assist ............................ 284
Break-in tips ........ ................... 154
Brightness control Instrument panel light control86, 89
BSM (Blind Spot Monitor) ...... 252
C
Care Exterior ................................. 334
Interior .................................. 337
Seat belts ............................. 337
Wheels and wheel ornaments........................................... 334
Cargo capacity ....................... 163
Cargo hooks ........................... 313
Child restraint system Fixed with a LATCH system ... 56
Fixed with a seat belt ............. 52
Front passenger occupant clas-sification system ................... 37
Points to remember ................ 43
Riding with children ................ 42
Types of child restraint system installation met hod ............... 45
Using an anchor bracket ........ 61
Child safety 12-volt battery precautions . 357, 437
Airbag precautions ................. 32
Back door precautions ......... 119 Child restraint system .............45
Heated steering wheel and seat
heater precautio ns..............306
How your child should wear the seat belt ................................26
Moon roof precautions..........147
Power window lock switch ....145
Power window precautions...144
Rear door child-protectors .... 118
Removed electronic key battery precautions .........................383
Seat belt extender precautions .............................................26
Seat belt precautions..............42
Child-protectors...................... 118
Cleaning Exterior .................................334
Interior ..................................337
Seat belts .............................337
Wheels and wheel ornaments...........................................334
Clock ................... .....84, 86, 87, 90
Coat hooks ..............................325
Condenser ............. ..................353
Console box ............................312
Cooling system .......................352 Engine overheating ..............438
Hybrid system overheating ...439
Cruise control .........................246
Cup holders............................. 311
Current fuel consumption..92, 99
Curtain shield airbags ..............29
Customizable featu res ...........463
D
Daytime running light system192
Daytime running lights/parking
lightsReplacing light bulbs ............388
Defogger Outside rear view mirrors .....301
Rear window.........................301