engine overheat TOYOTA RAV4 PLUG-IN HYBRID 2023 User Guide

5788-2. Steps to take in an emergency
■If the high coolant temperature
warning light comes on,
flashes 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 conditioning
system, and then stop the hybrid
system.
2 If you see steam:
Carefully lift the hood after the
steam subsides.
If you do not see steam:
Carefully lift the hood.
NOTICE
■When handling jumper cables
When connecting the jumper cables,
ensure that they do not become entangled in the cooling fan, etc.
■To prevent damaging the vehicle
The exclusive jump starting terminal is to be used when charging the 12-
volt battery from another vehicle in an emergency. It cannot be used to jump start another vehicle.
If your vehicle overheats
The following may indicate that
your vehicle is overheating.
 The high coolant temperature
warning light ( P.183) comes
on or flashes, or a loss of
hybrid system power is experi-
enced. (For example, the vehi-
cle 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

5808-2. Steps to take in an emergency
8Check if “Engine Coolant Temp
High Stop in a Safe Place See
Owner’s Manual” is shown on
the multi-information display.
If the message does not disap-
pear:
Stop the hybrid system and con-
tact any authorized Toyota
retailer or Toyota authorized
repairer, or any reliable repairer.
If the message is not displayed:
Have the vehicle inspected at
the nearest authorized Toyota
retailer or Toyota authorized
repairer, or any reliable repairer.
■If “Hybrid System Overheated
Output Power Reduced” is
shown on the multi-informa-
tion display
1 Stop the vehicle in a safe place.
2 Stop the hybrid system and
carefully lift the hood.
3 After the hybrid system has
cooled down, 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 “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL” line
“LOW” line
5 Add coolant if necessary.
Water can be used in an emergency if power control unit coolant is unavail-able.
If water was added in an emergency, have the vehicle inspected at any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer as soon as possible.
6 After stopping the hybrid system
and waiting for 5 minutes or
more, start the hybrid system
A
B
A
B
C

617Alphabetical Index
out ............................................ 167
Charging port ................................ 106
If the charging port lid does not open
................................................. 121
Locking and unlocking ............... 121
Opening and closing .................. 107
Child-protector.............................. 239
Child restraint system .................... 50
Child restraint system installation
method....................................... 60
Fixed with a seat belt ................... 61
Fixed with an ISOFIX lower anchor-
age ............................................. 63
Points to remember...................... 51
Riding with children ...................... 49
Using a top tether anchorage....... 64
Child safety ..................................... 49
12-volt battery precautions. 485, 577
Airbag precautions ....................... 44
Back door precautions ............... 240
Charging precautions ................. 132
Heated steering wheel and seat
heater precautions ................... 440
How your child should wear the seat
belt ............................................. 36
Panoramic moon roof precautions
................................................. 284
Power window lock switch ......... 281
Power window precautions ........ 280
Rear door child-protectors ......... 239
Seat belt precautions ................... 35
Seat heater precautions ............. 440
Cleaning ................................ 466, 469
Aluminum wheels ....................... 466
DC/DC Converter air intake vent 504
Exterior....................................... 466
Front camera.............................. 339
Interior ........................................ 469
Radar sensor ............................. 339
Seat belts ................................... 469
Water-repellent coating .............. 467Clock ......................................192, 193
Coat hooks .................................... 463
Condenser ..................................... 482
Console box .................................. 446
Consumption screen .................... 226
Convenience Services (Suggestion
function) ...................... 209, 221, 596
Coolant
Capacity ..................................... 588
Checking .................................... 481
Preparing and checking before win-
ter ............................................. 422
Warning light .............................. 535
Cooling system .............................481
Engine overheating .................... 578
Hybrid system overheating......... 580
Cruise control
Cruise control .............................381
Dynamic radar cruise control with
full-speed range .......................368
Cup holders ...................................447
Current fuel economy... 201, 213, 216
Curtain shield airbags ....................39
Customizable features ................. 594
D
Daytime running light system ..... 326
Replacing light bulbs ..................516
DC/DC converter air intake vent .... 99
Cleaning ..................................... 504
Deck board .................................... 449
Deck under tray.............................450
Defogger
Outside rear view mirrors ........... 432
Rear window .............................. 432
Windshield.................................. 431
Digital Rear-view Mirror ............... 268
Dimensions ...................................584
Display
BSM (Blind Spot Monitor)........... 387
Consumption screen ..................226

619Alphabetical Index
Operation ................................... 282
Emergency, in case of
If a warning buzzer sounds ........ 534
If a warning light turns on ........... 534
If a warning message is displayed
................................................. 544
If the 12-volt battery is discharged
................................................. 573
If the electronic key does not operate
properly.................................... 571
If the fuel filler door cannot be
opened..................................... 570
If the hybrid system will not start 568
If the vehicle is submerged or water
on the road is rising ................. 527
If you have a flat tire........... 548, 559
If you lose your keys .................. 570
If you think something is wrong.. 532
If your vehicle becomes stuck .... 582
If your vehicle has to be stopped in
an emergency .......................... 526
If your vehicle needs to be towed
................................................. 529
If your vehicle overheats ............ 578
Emergency brake signal .............. 416
Emergency flashers ..................... 526
Emergency tire puncture repair kit
..................................................... 548
Energy monitor ............................. 226
Engine
Compartment ............................. 479
Exhaust gas precautions.............. 47
Hood .......................................... 476
How to start the hybrid system... 310
Identification number.................. 585
If the hybrid system will not start 568
If your vehicle has to be stopped in
an emergency .......................... 526
Overheating ............................... 578
Power switch .............................. 310
Engine coolantCapacity ..................................... 588
Checking .................................... 481
High coolant temperature warning
light .......................................... 535
Preparing and checking before win-
ter ............................................. 422
Warning light .............................. 535
Engine coolant temperature 187, 193
Engine oil
Capacity ..................................... 587
Checking .................................... 479
Preparing and checking before win-
ter ............................................. 422
Warning light .............................. 535
EPS (Electric Power Steering)
Function ..................................... 416
Warning light .............................. 536
EV/HV mode selection switch........ 86
EV driving range ........................... 103
EV mode ..........................................85
Exhaust gas precautions ............... 47
Extended Headlight Lighting system
..................................................... 327
F
Flat tire ................................... 548, 559
Tire pressure warning system .... 488
Floor mats ....................................... 32
Fluid
Brake .......................................... 590
Hybrid transmission.................... 589
Rear differential .......................... 589
Washer ....................................... 483
Fog lights
Replacing light bulbs ..................516
Switch......................................... 331
Footwell lights............................... 443
Front fog lights
Replacing light bulbs ..................516
Switch......................................... 331
Front passenger’s seat belt reminder

621Alphabetical Index
charge mode ................................. 85
Hybrid system
ACCESSORY mode .................. 313
Acoustic Vehicle Alerting System 92
Brake Override System .............. 289
Emergency shut off system.......... 99
Energy monitor/consumption screen
................................................. 226
High voltage components ............ 95
How to start the hybrid system... 310
Hybrid System Indicator ..... 187, 196
If the hybrid system will not start 568
If your vehicle has to be stopped in
an emergency .......................... 526
Ignition switch (power switch) .... 310
Overheating ............................... 578
Plug in Hybrid Electric Vehicle ... 100
Plug-in hybrid system precautions95
Power (ignition) switch ............... 310
Regenerative braking ................... 90
Starting the hybrid system ......... 310
Hybrid System Indicator ...... 187, 196
Hybrid transmission ..................... 315
I
Identification number
Engine ........................................ 585
Vehicle ....................................... 584
Ignition switch (power switch) .... 310
Auto power off function .............. 313
Changing the power switch modes
................................................. 313
If your vehicle has to be stopped in
an emergency .......................... 526
Starting the hybrid system ......... 310
Illuminated entry system ............. 443
Immobilizer system ........................ 77
Indicators ...................................... 180
Initialization
Items to initialize ........................ 609
Panoramic moon roof................. 283Power back door ........................ 248
Power windows .......................... 279
Tire pressure warning system .. 492,
493
Inside rear view mirror ......... 267, 268
Installing a child restraint system to
a front passenger seat ................. 52
Instrument cluster light control. 191,
199
Interior lights ................................. 443
Switch......................................... 444
Intrusion sensor.............................. 80
ISOFIX lower anchorages ..............63
J
Jack
Positioning a floor jack ............... 477
Vehicle-equipped jack ........ 549, 560
Jack handle ...........................549, 560
Jam protection function
Electronic sunshade ................... 283
Panoramic moon roof ................. 283
Power back door opener and closer
................................................. 246
Power windows .......................... 279
K
Keyless entry
Smart entry & start system ......... 253
Wireless remote control ............. 233
Keys ............................................... 232
Battery-saving function............... 254
Electronic key .............................232
If the electronic key does not operate
properly .................................... 571
If you lose your keys ..................570
Key number plate .......................232
Keyless entry...................... 233, 253
Mechanical key .......................... 234
Power switch .............................. 310

623Alphabetical Index
function) ................... 209, 221, 596
Display contents................. 199, 211
Driving information display . 201, 212
Driving support system information
display ............................. 204, 216
Dynamic radar cruise control with
full-speed range ....................... 368
Energy monitor........................... 226
Hybrid System Indicator ..... 190, 596
Language ........................... 208, 596
LTA (Lane-Tracing Assist) ......... 359
Menu icons................................. 200
Meter control switches ....... 200, 212
Navigation system-linked display
......................................... 204, 216
Parking Support Brake function . 405
PCS (Pre-Collision System) ....... 343
Pop-up display ................... 208, 595
RSA (Road Sign Assist) ............. 364
Settings .............................. 206, 217
Toyota parking assist-sensor ..... 395
Units ................................... 208, 220
Vehicle information display 204, 216
Warning message display .......... 209
Warning messages .................... 544
“My Room Mode” ......................... 164
N
Navigation system-linked display
............................................. 204, 216
Normal mode ................................ 411
O
Odometer .............................. 187, 199
“ODO TRIP” switch ............ 191, 199
Odometer and trip meter display
“ODO TRIP” switch ............ 187, 199
Display items...................... 187, 199
“ODO TRIP” switch .............. 191, 199
OilEngine oil ...................................587
Opener
Back door ...........................242, 244
Fuel filler door ............................ 337
Hood........................................... 476
Outer foot lights
Replacing light bulbs ..................516
Wattage ...................................... 591
Outside rear view mirrors ............277
Adjusting and folding ..................277
BSM (Blind Spot Monitor)........... 386
Outside rear view mirror defoggers
................................................. 432
Outside temperature............. 187, 193
Outside temperature display190, 198
Overheating ...................................578
P
Paddle shift switches ................... 317
Panoramic moon roof
Jam protection function .............. 283
Operation ...................................282
Warning message ...................... 284
Parking assist sensors (Toyota park-
ing assist-sensor) .......................395
Parking brake
Operation ...................................320
Parking brake engaged warning
buzzer ...................................... 322
Warning light .............................. 540
Warning message ...................... 322
Parking Support Brake (PKSB) ... 403
Indicator ..................................... 184
Parking Support Brake function
(rear-crossing vehicles)............410
Parking Support Brake function
(static objects) .......................... 407
Warning light .............................. 538
PCS (Pre-Collision System)
Enabling/disabling the pre-collision
system...................................... 346

628Alphabetical Index
Utility vehicle precautions ........... 425
V
Vanity lights
Vanity lights................................ 453
Wattage...................................... 591
Vanity mirrors ............................... 453
Vehicle data recordings ................... 7
Vehicle identification number ..... 584
Vehicle Stability Control (VSC) ... 415
Ventilators (seat ventilators) ....... 440
VSC (Vehicle Stability Control) ... 415
W
Warning buzzers
Approach warning ...................... 375
Brake hold .................................. 540
Brake Override System .............. 540
Brake system ............................. 534
BSM OFF indicator .................... 539
Charging system ........................ 535
Downshifting ...................... 317, 318
Drive-Start Control ..................... 540
Electric power steering............... 536
High coolant temperature........... 535
Hybrid system overheat ............. 535
Low engine oil pressure ............. 535
LTA (Lane Tracing Assist) . 353, 537
Open door .................................. 238
Open hood ................................. 238
Open window ............................. 280
PKSB OFF indicator................... 538
Pre-collision warning .......... 343, 537
Radar cruise control ................... 375
RCTA (Rear Crossing Traffic Alert)
................................................. 387
RCTA OFF indicator .................. 539
RSA (Road Sign Assist) ............. 364
Seat belt reminder.............. 541, 542
Shift position ...................... 317, 318Toyota parking assist ................. 395
Toyota parking assist-sensor OFF
indicator ...................................538
Vehicle sway warning................. 357
Warning lights
ABS ............................................ 536
Brake hold operated indicator .... 540
Brake Override System .............. 540
Brake system .............................534
BSM OFF indicator..................... 539
Charging system ........................ 535
Driver’s seat belt reminder light.. 541
Drive-Start Control ..................... 540
Electric power steering ............... 536
Engine ........................................536
Front passenger’s seat belt reminder
light .......................................... 541
High coolant temperature ........... 535
Hybrid system overheat ............. 535
Low engine oil pressure ............. 535
Low fuel level .............................541
LTA indicator .............................. 537
Malfunction indicator lamp ......... 536
Parking brake indicator .............. 540
PCS warning light.......................537
PKSB OFF indicator ................... 538
PKSB.......................................... 538
RCTA OFF indicator................... 539
Rear passengers’ seat belt reminder
lights......................................... 542
Seat belt reminder light ...... 541, 542
Slip indicator............................... 539
SRS ............................................ 536
Tire pressure .............................. 541
Toyota parking assist-sensor OFF
indicator ...................................538
Warning messages .......................544
Washer
Checking .................................... 483
Low washer fluid warning message
......................................... 483, 544