2022 TOYOTA HIGHLANDER HYBRID engine overheat

5027-2. 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
NOTICE
■When handling jumper cables
When connecting the jumper
cables, ensure that they do not
become entangled in the cooling
fan or belt.
■To prevent damaging the
vehicle
The exclusive jump starting termi-
nal 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 over-
heats
The following may indicate
that your vehicle is over-
heating.
 The needle of the engine
coolant temperature gauge
( P.89) enters 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-
p l a y.
 Steam comes out from
under the hood.
Correction procedures

558Alphabetical Index
Back-up lightsReplacing light bulbs ............ 447
Battery (12-volt battery) Battery checking................... 419
If the 12-volt battery is dis-charged .............................. 497
Preparing and c hecking before
winter.................................. 330
Replacing ............................. 500
Warning light ........................ 465
Battery (traction battery) ......... 75
Blind Spot Monitor (BSM) ...... 286
Brake Brake hold ............................ 226
Fluid ............................. 418, 513
Parking brake ....................... 223
Regenerative braking ............. 72
Warning light ........................ 464
Brake assist ............................ 322
Break-in tips ........ ................... 191
Brightness control Instrument panel light control . 92
BSM (Blind Spot Monitor) ...... 286
Buzzer Hands off steering wheel warn-ing (LTA) ............................. 269
C
Care Exterior ................................. 398
Interior .................................. 401
Seat belts ............................. 401
Wheels and wheel ornaments........................................... 398
Cargo capacity ....................... 200
Cargo net hooks .. ................... 368
Chains ..................................... 331
Child restraint system Fixed with a LATCH system ... 60
Fixed with a seat belt ............. 55
Front passenger occupant clas-sification system ................... 43 Points to remember ................50
Riding with children ................49
Types of child restraint system
installation method ...............52
Using an anchor bracket ........62
Child safety 12-volt battery precautions .420, 501
Airbag precautions .................39
Back door precautions..........135
Child restraint system .............52
Heated steering wheel and seat heater precautio ns..............356
How your child should wear the seat belt ................................28
Moon roof precautions..........183
Panoramic moon roof precau- tions ....................................187
Power window lock switch ....181
Power window precautions...180
Rear door child-protectors ....134
Seat belt extender precautions .............................................29
Seat belt precautions..............49
Child-protectors......................134
Cleaning Exterior .................................398
Interior ..................................401
Radar sensor ........................244
Seat belts .............................401
Wheels and wheel ornaments...........................................398
Clock ....................................89, 92
Coat hooks ..............................381
Condenser ............. ..................417
Console box ............................364
Conversation mirror ...............387
Cooling system .......................416 Engine overheating ..............502
Hybrid system overheating ...504

560Alphabetical Index
EDR (Event data recorder)......... 7
E-Four ...................................... 323
Elapsed time ..................... 96, 106
Electric motor (traction motor)71
Electric Power Steering (EPS)............................................... 323Warning light ........................ 467
Electronic key ......................... 128 Battery-saving function......... 147
If the electronic key does not operate properly ................. 495
Replacing the battery ........... 442
Electronic roof sunshade Jam protection function ........ 186
Operation ............................. 185
Electronically Controlled Brake System (ECB) ....................... 322
Emergency flashers ............... 456
Emergency, in case of If a warning buzzer sounds .. 464
If a warning light turns on ..... 464
If a warning message is dis-played................................. 474
If the 12-volt battery is dis- charged .............................. 497
If the electronic key does not operate properly ................. 495
If the fuel filler door cannot be opened ............................... 494
If the hybrid sy stem will not start
........................................... 492
If the vehicle is submerged or water on the road is rising .. 457
If you have a flat tire ............. 479
If you lose your keys ............ 493
If you think something is wrong ........................................... 462
If your vehicle becomes stuck ........................................... 506
If your vehicle has to be stopped in an emergency................. 456 If your vehicle needs to be towed
...........................................459
If your vehicle ove rheats ......502
Energy monitor ....................... 117
Engine ACCESSORY mode . ............215
Compartment........................414
Engine switch .......................213
Hood .....................................412
How to start the hybrid system ...........................................213
Identification number ............509
If the hybrid sys tem will not start
...........................................492
If your vehicle has to be stopped in an emergency .................456
Ignition switch (power switch) ...........................................213
Overheating ..........................502
Power switch ........................213
Tachometer.............................89
Engine coolant Capacity ............................... 511
Checking ..............................416
Preparing and checking before winter ..................................330
Engine coolant temperature gauge .......................................89
Engine oil Capacity ...............................510
Checking ..............................414
Preparing and checking before winter ..................................330
Warning light.........................465
Engine switch (power switch)213 If your vehicle has to be stopped in an emergency .................456
EPS (Electric Po wer Steering)
...............................................323 Warning light.........................467
EV drive mode.........................217
EV indicator...............................72

562Alphabetical Index
Rear automatic air conditioning system ................................ 352
Seat heaters ......................... 356
High mounted stoplight Replacing light bulbs ............ 447
High-voltage components ....... 75
Hill-start assist control .......... 322
Hood Open .................................... 412
Hooks Cargo net hooks ................... 368
Coat hooks ........................... 381
Retaining hooks (floor mat) .... 24
Horn ......................................... 165
Hybrid battery (tr action battery)
Location.................................. 75
Specification ......................... 510
Warning message .................. 78
Hybrid battery (traction battery) air vents .................................. 77
Hybrid system .......................... 71 Acoustic vehicle alerting system............................................. 73
Emergency shut off system .... 78
Energy monitor/consumption screen ................................ 117
EV drive mode...................... 217
High voltage components....... 75
Hybrid system precautions ..... 75
If the hybrid sy stem will not start
........................................... 492
Overheating.......................... 504
Power (ignition) switch ......... 213
Regenerative braking ............. 72
Starting the hybrid system.... 213
Hybrid System Indicator .. 90, 115
Hybrid transmission .............. 219 S mode ................................. 221
Hybrid vehicle driving tips .... 328
I
I/M test ..................................... 408 Identification
Engine ..................................509
Vehicle ..................................508
Ignition switch (power switch) ...............................................213Auto power off fun ction .........216
Changing the power switch modes.................................215
If your vehicle has to be stopped in an emergency .................456
Immobilizer system ..................79
Indicators ..................................86
Initialization Items to initialize ...................540
Maintenance .........................405
Power windows ....................179
Tire pressure w arning system
...........................................428
Inside rear view m irror ...166, 167
Instrument panel light control .92
Interior lights...........................360 Front interior light .................360
Rear interior light ..................360
Intuitive parking assist Function................................292
Warning message.........294, 295
J
JackPositioning a floor jack .........413
Vehicle-equipped jack ..........480
Jack handle .............................480
Jam protection function Electronic roof sunshade ......186
Moon roof .............................182
Panoramic moon r oof ...........186
Power back door ..................140
Power windows ....................179

564Alphabetical Index
Vanity mirrors ....................... 386
Moon roof Door lock linked moon roof oper-ation ................................... 182
Jam protection function ........ 182
Operation ............................. 182
Multi-information display. 92, 102 Audio system-linked display . 96, 106
AWD Control .................. 97, 106
Driving information display ... 93, 103
Driving support system......... 107
Driving support system informa- tion display ................... 96, 106
Dynamic radar cruise control with full-speed range .......... 271
ECO Accelerator Guidance .. 94, 104
Eco score ....................... 94, 104
Energy monitor ....... 97, 106, 117
Fuel economy................. 94, 103
LTA (Lane Tracing Assist) ..... 266
Menu icons ..................... 92, 102
Meter control switches ... 93, 102
Navigation system-linked display ..................................... 96, 106
Pop-up display ............... 92, 102
Settings .......................... 97, 107
Suggestion function...... 101, 111
Tire pressure .......... 97, 106, 424
Vehicle information display... 96, 106
Warning message 101, 111, 474
N
Navigation system-linked display ................................. 96, 106, 115
Noise from under vehicle .......... 5
Normal mode .......................... 319
O
“ODO TRIP” switch ..................91
Odometer...................................91
Odometer and trip meter display Display items ..........................91
“ODO TRIP” switch .................91
Oil Engine oil..............................510
Rear differential oil................512
Opener Back door .............................137
Fuel filler door.......................240
Hood .....................................412
Outer foot lights Replacing light bulbs ............447
Outside rear view mirrors Adjustment ...........................177
BSM (Blind Sport Monitor) ....286
Linked mirror function when reversing.............................177
Mirror position me mory.........159
Outside rear view mirror defog- gers ............................342, 346
RCTA function.......................301
Outside temperature ................89
Overheating.............................502
P
Panic mode .............................130
Panoramic moon roof Jam protection function ........186
Operation..............................185
Parking assist sens ors (intuitive
parking assist) ......................292
Parking brake Operation..............................223
Parking brake engaged warning buzzer.................................225
Warning light.........................471
Warning message.................225

569Alphabetical Index
Trailer Sway Control .............. 322
Trailer towing .......................... 201
TransmissionDriving mode select switch... 319
Hybrid transmission.............. 219
If the shift lever cannot be shifted from P................................. 220
S mode ................................. 221
Trip meters ................................ 91
Turn signal lights Replacing light bulbs ............ 447
Turn signal lever ................... 222
U
USB charging ports................ 372
V
Vanity lights ............................ 386
Vanity mirrors ......................... 386
VDIM (Vehicle Dynamics Inte-grated Management) ............ 323
Vehicle data recording ............... 6
Vehicle Dynamics Integrated Management (VDIM) ............. 323
Vehicle identifi cation number508
Vehicle information display ... 96, 106
Vehicle Stability Control (VSC) ............................................... 322
Ventilators (seat ventilators) . 356
VSC (Vehicle Stability Control) ............................................... 322
W
Warning buzzers ABS ...................................... 466
Airbags ................................. 466
Approach warning ................ 278
Brake hold ............................ 471
Brake Override System ........ 466 Brake system ........................464
Charging system ..................465
Downshifting .........................222
Drive-Start Control
................466
Electric power steering .........467
Engine ..................................465
Hands off steering wheel warn- ing (LTA) .............................269
High coolant temperature .....464
Hybrid system .......................465
Hybrid system overheat ........465
Intuitive parking assist .297, 300, 469
Low engine oil pressure .......465
LTA (Lane Tracing Assist) ...260, 264, 468
Open door ....................132, 134
PKSB (Parking Support Brake) ...........................................469
Pre-collision braking .............251
RCTA (Rear Cross Traffic Alert) ...........................................469
RCTA function.......................303
Seat belt .......................467, 468
Warning label ............................75
Warning lights .........................464 ABS ......................................466
Brake hold operated indicator...........................................471
Brake Override System ........466
Brake system ........................464
Charging system ..................465
Drive-Start Control ................466
Electric power steering .........467
High coolant temperature .....464
Hybrid system overheat warning light .....................................465
Intuitive parking assist OFF indi- cator ...................................469
Low engine oil pressure .......465
Low fuel level........................467
LTA indicator .........................468