2023 TOYOTA YARIS CROSS overheating

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4-2. Driving procedures
Driving
Turn the brake hold system on
The brake hold standby indicator
( gr e e n) co me s o n. W hi l e t he sy st e m
is holding the brake, the brake hold
operated indicator (yellow) comes
on.
■Brake hold system operating con-
ditions
The brake hold system cannot be turned on in the following conditions:
●The driver’s door is not closed.
●The driver is not wearing the seat belt.
●The parking brake is engaged.
If any of the conditions above are
WARNING
■When parking the vehicle
Do not leave a child in the vehicle
alone. The parking brake may be released unintentionally and there is the danger of the vehicle moving that
may lead to an accident resulting in death or serious injury.
■Parking brake switch
Do not set any objects near the park- ing brake switch.
Objects may interfere with the switch and may lead the parking brake to unexpectedly operate.
NOTICE
■When parking the vehicle
Before you leave the vehicle, set the
parking brake, shift the shift lever to P and make sure that the vehicle does not move.
■When the system malfunctions
Stop the vehicle in a safe place and
check the warning messages.
■When the parking brake cannot be released due to a malfunction
Driving the vehicle with the parking
brake set will lead to brake compo- nents overheating, which may affect braking performance and increase
brake wear.
Have the vehicle inspected by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer immediately if this occurs.
Brake Hold
The brake hold system keeps
the brake applied when the
shift lever is in D, B or N with
the system on and the brake
pedal has been depressed to
stop the vehicle. The system
releases the brake when the
accelerator pedal is depressed
with the shift lever in D or B to
allow smooth start off.
Enabling the system

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4-5. Using the driving support systems
Driving
occur when the above systems are
operating. None of these indicates that a malfunction has occurred.• Vibrations may be felt through the
vehicle body and steering. • A motor sound may be heard also after the vehicle comes to a stop.
■ECB operating sound
ECB operating sound may be heard in the following cases, but it does not indi-cate that a malfunction has occurred.
●Operating sound heard from the engine compartment when the brake
pedal is operated.
●Motor sound of the brake system
heard from the front part of the vehicle when the driver’s door is opened.
●Operating sound heard from the engine compartment when one or two minutes passed after the stop of the
hybrid system.
■Active Cornering Assist operation sounds and vibrations
When the Active Cornering Assist is
operated, operation sounds and vibra- tions may be generated from the brake system, but this is not a malfunction.
■EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be heard. This does not indicate a malfunc-
tion.
■Automatic reactivation of TRC and VSC systems
After turning the TRC and VSC systems
off, the systems will be automatically re- enabled in the following situations:
●When the power switch is turned off
●If only the TRC system is turned off,
the TRC will turn on when vehicle speed increases.If both the TRC and VSC systems are
turned off, automatic re-enabling will not occur when vehicle speed increases.
■Operating conditions of Active Cor-
nering Assist
The system operates when the following occurs.
●TRC/VSC can operate
●The driver is attempting to accelerate while turning
●The system detects that the vehicle is drifting to the outer side
●The brake pedal is released
■Reduced effectiveness of the EPS system
The effectiveness of the EPS system is
reduced to prevent the system from overheating when there is frequent steering input over an extended period
of time. The steering wheel may feel heavy as a result. Should this occur, refrain from excessive steering input or
stop the vehicle and turn the hybrid sys- tem off. The EPS system should return to normal within 10 minutes.
■Operating conditions of emergency
brake signal
When the following conditions are met, the emergency brake signal will oper-
ates:
●The emergency flashers are off
●Actual vehicle speed is over 55 km/h (35 mph)
●The system judges from the vehicle deceleration that it is a sudden brak-
ing operation.
■Automatic system cancelation of emergency brake signal
The emergency brake signal will be can-
celed in any of the following situations:
●The emergency flashers are turned
on.
●The system judges from the vehicle
deceleration that is not a sudden brak- ing operation.
■Secondary Collision Brake operat-ing cancelation
The system operates when the SRS air- bag sensor detects a collision while the

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4-5. Using the driving support systems
vehicle is in motion.
However, the system does not operate when components are damaged.
■Secondary Collision Brake auto-matic cancelation
The system is automatically canceled in any of the following situations.
●The vehicle speed drops approxi-
mately 0 km/h (0 mph)
●A certain amount of time elapses
during operation
●The accelerator pedal is depressed a
large amount
■If a message about AWD is shown on the multi-information displa y
(AWD models)
MessageDetails/Actions
“AWD System Over-
heated Switching to 2WD
Mode”
AWD system is overheating.
 Perform the following actions.
• Reduce the vehicle speed until the message disap-
pears.
• Stop the vehicle in a safe place with the hybrid sys-
tem operating.
Once the display message on the multi-information dis-
play turns off, there is no problem continuing to drive.
If the message does not disappear, have your vehicle
checked by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer immedi-
ately.
“AWD System Over-
heated 2WD Mode
Engaged”
The vehicle switched from four-wheel drive (AWD) to
front wheel drive due to overheating.
 Perform the following actions.
• Reduce the vehicle speed until the message disap-
pears.
• Stop the vehicle in a safe place with the hybrid sys-
tem operating.
Once the display message on the multi-information dis-
play turns off, the AWD system returns to normal.
If the message does not disappear, have your vehicle
checked by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer immedi-
ately.
“AWD System Malfunction
2WD Mode Engaged Visit
Your Dealer”
A malfunction occurred in the AWD system.
 Have your vehicle checked by any authorized
Toyota retailer or Toyota authorized repairer, or
any reliable repairer immediately.

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5-1. Using the air conditioning system and defogger
Interior features
■Heated steering wheel
Turns heated steering wheel on/off
When the heated steering wheel is on,
the indicator illuminates on the heated
steering wheel switch.
■Seat heaters
Turns seat heaters on/off
1 High temperature
2 Low temperature
When the seat heater is on, the indica-
tor illuminates on the seat heater
switch.
When not in use, put the switch in the
neutral position. The indicator will turn
off.
■The heated steering wheel and seat heaters can be used when
The power switch is in ON.
Operation instructionsWARNING
■To prevent overheating and minor burn injuries
Observe the following precautions when using the seat heaters.
●Do not cover the seat with a blanket or cushion when using the seat heater.
●Do not use seat heater more than necessary.

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7-2. Steps to take in an emergency
When trouble arises
If the engine coolant temperature
gauge enters the red zone or
“Engine Coolant Temp High Stop
in a Safe Place See Owner’s
Manual” is shown on the multi-
information display
1 Stop the vehicle in a safe place
and turn off the air conditioning
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: Care-
fully lift the hood.
3 After the hybrid system has
cooled down sufficiently, inspect
the hoses and radiator core
(radiator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant leaks,
immediately contact any authorized
Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
4 The coolant level is satisfactory
if it is between the “F” and “L”
lines on the reservoir.
Reservoir
“F” line
“L” line
5 Add coolant if necessary.
Water can be used in an emergency if
If your vehicle overheats
The following may indicate that
your vehicle is overheating.
 The engine coolant tempera-
ture gauge ( P.95, 100) 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 display.
 Steam comes out from under
the hood.
Correction procedures

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Alphabetical Index
Battery (traction battery)................ 79
Blind Spot Monitor (BSM) ............ 270
Enabling/disabling the Blind Spot
Monitor..................................... 272
Bottle holders ............................... 353
Brake
Brake hold .................................. 203
Emergency brake signal ............ 329
Fluid ........................................... 490
Parking brake ............................. 200
Regenerative braking ................... 76
Warning light .............................. 435
Brake assist .................................. 328
Break-in tips .................................. 176
Brightness control
Instrument panel light control99, 105
BSM (Blind Spot Monitor) ............ 270
Enabling/disabling the Blind Spot
Monitor..................................... 272
C
Care ....................................... 368, 371
Aluminum wheels ....................... 368
Exterior....................................... 368
Interior ........................................ 371
Seat belts ................................... 371
Chains ........................................... 338
Child restraint system .................... 49
Points to remember...................... 49
Riding with children ...................... 48
Child safety ..................................... 48
12-volt battery precautions. 389, 475
Airbag precautions ....................... 43
Back door precautions ............... 139
Child restraint system .................. 49
Heated steering wheel and seat
heater precautions ................... 348
How your child should wear the seat
belt ............................................. 36
Installing child restraints ............... 49
Power window lock switch.......... 171
Power window precautions ........ 170
Rear door child-protectors.......... 139
Seat belt precautions ................... 48
Child-protectors ............................ 139
Cleaning................................. 368, 371
Aluminum wheels .......................368
Exterior ....................................... 368
Interior ........................................371
Radar sensor.............................. 227
Seat belts ...................................371
Clock ..................95, 98, 100, 104, 105
Coat hooks .................................... 365
Condenser ..................................... 387
Console box .................................. 354
Consumption screen .................... 123
Cooling system .............................385
Engine overheating .................... 477
Hybrid system overheating......... 477
Cruise control
Dynamic radar cruise control with
full-speed range .......................252
Cup holders ...................................353
Current fuel consumption .... 107, 114
Curtain shield airbags ....................38
Customizable features ................. 494
D
Daytime running light system ..... 206
Deck board .................................... 355
Defogger
Outside rear view mirrors ........... 344
Rear window .............................. 344
Windshield.................................. 344
Dimensions ...................................484

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Alphabetical Index
Emergency, in case of
If a warning buzzer sounds ........ 435
If a warning light turns on ........... 435
If a warning message is displayed
................................................. 445
If the 12-volt battery is discharged
................................................. 472
If the electronic key does not operate
properly.................................... 470
If the hybrid system will not start 468
If the vehicle is trapped in rising
water ........................................ 427
If you have a flat tire........... 448, 459
If you lose your keys .................. 469
If you think something is wrong.. 434
If your vehicle becomes stuck .... 480
If your vehicle has to be stopped in
an emergency .......................... 426
If your vehicle needs to be towed
................................................. 429
If your vehicle overheats ............ 477
Energy monitor ............................. 123
Engine ........................................... 485
ACC ................................... 190, 193
Compartment ............................. 383
Engine switch ..................... 189, 191
Hood .......................................... 380
How to start the hybrid system. 189,
191
Identification number.................. 485
If the hybrid system will not start 468
If your vehicle has to be stopped in
an emergency .......................... 426
Ignition switch (power switch) .. 189,
191
Overheating ............................... 477
Power switch ...................... 189, 191
Tachometer ................................ 122
Engine coolant .............................. 385
Capacity ..................................... 488
Checking .................................... 385
Preparing and checking before win-
ter ............................................. 337
Engine coolant temperature gauge
...............................................95, 100
Engine oil....................................... 383
Capacity ..................................... 486
Checking .................................... 383
Preparing and checking before win-
ter ............................................. 337
Warning light .............................. 436
Engine oil maintenance data ....... 385
Engine switch (power switch) ... 189,
191
If your vehicle has to be stopped in
an emergency .......................... 426
EPS (Electric Power Steering) ..... 329
Warning light .............................. 438
EV drive mode ............................... 195
EV indicator .....................................76
Extended headlight lighting function
..................................................... 208
F
Flat tire
Tire pressure warning system .... 392
Vehicles with a spare tire ........... 459
Vehicles without a spare tire ...... 448
Floor mats ....................................... 32
Fluid
Brake .......................................... 490
Hybrid transmission.................... 489
Washer ....................................... 387
Fog lights
Switch......................................... 218
Wattage ...................................... 492

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Alphabetical Index
Hybrid battery (traction battery)
Location ....................................... 79
Specification............................... 486
Warning message ........................ 83
Hybrid battery (traction battery) air
intake vent .................................. 406
Hybrid battery (traction battery) air
vents .............................................. 82
Hybrid electric vehicle driving tips
..................................................... 335
Hybrid system................................. 75
Acoustic vehicle alerting system .. 77
Emergency shut off system.......... 82
Energy monitor/consumption screen
................................................. 123
EV drive mode ........................... 195
High voltage components ............ 79
Hybrid System Indicator ....... 95, 100
Hybrid system precautions........... 79
If the hybrid system will not start 468
Overheating ............................... 477
Power (ignition) switch ....... 189, 191
Regenerative braking ................... 76
Starting the hybrid system . 189, 191
Hybrid System Indicator 95, 100, 122
Hybrid transmission ..................... 197
I
Identification
Engine ........................................ 485
Vehicle ....................................... 485
Ignition switch (power switch) .. 189,
191
Auto power off function .............. 194
Changing the power switch modes
......................................... 190, 193
If your vehicle has to be stopped in
an emergency .......................... 426
Illuminated entry system.............. 351
Immobilizer system ........................ 84
Indicators......................................... 92
Initialization
Engine oil maintenance data ...... 385
Items to initialize......................... 505
Power back door ........................ 148
Power windows .......................... 169
Tire pressure warning system .... 395
Inside rear view mirror ................. 165
Interior lights ................................. 350
Wattage ...................................... 492
J
Jack
Positioning a floor jack ............... 381
Vehicle-equipped jack ................ 460
Jack handle ...................................460
Jam protection function
Power back door ........................ 145
Power windows .......................... 169
K
Keyless entry
Smart entry & start system ......... 152
Wireless remote control ............. 132
Keys ............................................... 130
Battery-saving function............... 153
Electronic key .............................130
If the electronic key does not operate
properly .................................... 470
If you lose your keys ..................469
Key number plate .......................130
Keyless entry.............. 135, 141, 152
Mechanical key .......................... 130
Power switch ...................... 189, 191
Replacing the battery ................. 409
Warning buzzer .......................... 153
Wireless remote control ............. 132