2022 TOYOTA HIGHLANDER engine overheat

2264-3. Operating the lights and wipers
4 Washer/wiper dual
operation
Pushing the lever operates the
wiper and washer.
The wiper will automatically operate
a couple of times after the washer
squirts.
The washer will automatically oper-
ate and clean the camera for the
Digital Rearview Mirror
*1 (  P.160)
and rear camera
*2.
*1: If equipped
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM
OWNER’S MANUAL”.
■The rear window wiper and
washer can be operated when
The engine switch is in ON.
■If no washer fluid sprays
Check that the washer nozzle is not
blocked if there is washer fluid in the
washer fluid tank.
■Reverse-linked rear window
wiper function
When the shift lever is shifted to R
when the front wipers are operating,
the rear window wiper will operate
once.
■Customization
Setting of the reverse-linked func-
tion can be changed. ( P.521)
NOTICE
■When the washer fluid tank is
empty
Do not operate the switch continu-
ally as the washer fluid pump may
overheat.

3174-5. Using the driving support systems
4
Driving
operation. The indicator will flash
during operation, and then go off
when the system is fully off.
■When the downhill assist con-
trol system is operated continu-
ously
This may cause the brake actuator
to overheat. In this case, the down-
hill assist control system will stop
operating, a buzzer will sound and
the downhill assist control system
indicator will start flashing, and
“Traction Control Turned OFF” will
be shown on the multi-information
display. Refrain from using the sys-
tem until the downhill assist control
system indicator stays on and the
message goes off. (The vehicle can
be driven normally during this time.)
■Sounds and vibrations caused
by the downhill assist control
system
●A sound may be heard from the
engine compartment when the
engine is started or just after the
vehicle begins to move. This
sound does not indicate that a
malfunction has occurred in down-
hill assist control system.
●Either of the following conditions
may occur when the downhill
assist control system is operating.
None of these are indicators that a
malfunction has occurred.
• Vibrations may be felt through the
vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
■System malfunction
In the following ca ses, have your
vehicle checked by your Toyota
dealer.
●The downhill assist control system
indicator does not come on when
the engine switch is turned to ON.
●The downhill assist control system
indicator does not come on when
the downhill assist control switch
is pressed.
●The slip indicator comes on.
WARNING
■The system may not operate
on the following surfaces,
which may lead to an acci-
dent causing death or serious
injury
●Slippery surfaces such as wet
or muddy roads
●Icy surface
●Unpaved roads

3214-5. Using the driving support systems
4
Driving
tions may be generated, but this is
not a malfunction.
■EPS operation sound
When the steering wheel is oper-
ated, a motor sound (whirring
sound) may be heard. This does not
indicate a malfunction.
■Reduced effectiveness of the
EPS system
The effectiveness of the EPS sys-
tem is reduced to prevent the sys-
tem from overheating when there is
frequent steering input over an
extended period of time. The steer-
ing wheel may feel heavy as a
result. Should this occur, refrain
from excessive steering input or
stop the vehicle and turn the engine
off. The EPS syst em should return
to normal within 10 minutes.
■Automatic reactivation of
TRAC, Trailer Sway Control and
VSC systems
After turning the TRAC, Trailer
Sway Control and VSC systems off,
the systems will be automatically
re-enabled in the following situa-
tions:
●When the engine switch is turned
OFF
●If only the TRAC system is turned
off, the TRAC will turn on when
vehicle speed increases
If both the TRAC and VSC sys-
tems are turned off, automatic
re-enabling will not occur when
vehicle speed increases.
■Operating conditions of Active
Cornering Assist
The system operates when the fol-
lowing occurs.
●TRAC/VSC can operate
●The driver is at tempting to accel-
erate while turning
●The system detects that the vehi-
cle is drifting to the outer side
●The brake pedal is released
■Secondary Collision Brake
operating conditions
The system operates when the SRS
airbag sensor detects a collision
while the vehicle is in motion.
However, the system does not oper-
ate in any of the following situations.
●The vehicle speed is below 6 mph
(10 km/h)
●Components are damaged
■Secondary Collision Brake
automatic cancellation
The system is automatically can-
celed in any of th e following situa-
tions.
●The vehicle speed drops below
approximately 6 mph (10 km/h)
●A certain amount of time elapses
during operation
●The accelerator pedal is
depressed a large amount
WARNING
■The ABS does not operate
effectively when
●The limits of tire gripping perfor-
mance have been exceeded
(such as excessively worn tires
on a snow covered road).
●The vehicle hydroplanes while
driving at high speed on wet or
slick roads.
■Stopping distance when the
ABS is operating may exceed
that of normal conditions
The ABS is not designed to
shorten the vehicle’s stopping dis-
tance. Always maintain a safe dis-
tance from the veh icle in front of
you, especially in the following sit-
uations:
●When driving on dirt, gravel or
snow-covered roads
●When driving with tire chains

3595-2. Using the air conditioning system and defogger
5
Interior features
Vehicle with a 12.3-inch dis-
play
Vehicle with a 8-inch display
■Front (Toyota multi-opera-
tion touch: Vehicle with a
12.3-inch display)
Select to display the seats
climate screen.
Each time the switch is selected,
the operation condition changes
as follows.
Hi (3 segments lit) Mid (2 seg-
ments lit) Lo (1 segment
lit) Off
The level indicator (red) lights
up during operation.
■Rear
Each time the switch is pressed,
the operation condition changes
as follows.
Hi (3 segments lit) Mid (2 seg-
ments lit) Lo (1 segment
lit) Off
The level indicator (amber)
lights up during operation.
■Operation condition
The engine switch is in ON.
WARNING
■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.

447
7
7
When trouble arises
When trouble arises
.7-1. Essential informationEmergency flashers .... 448
If your vehicle has to be stopped in an emergency.................................. 448
If the vehicle is submerged or water on the road is ris-
ing ............................. 449
7-2. Steps to take in an emer- gency
If your vehicle needs to be towed......................... 451
If you think something is wrong ........................ 454
Fuel pump shut off system .................................. 455
If a warning light turns on or a warning buzzer sounds.................................. 456
If a warning message is dis- played........................ 467
If you have a flat tire.... 471
If the engine will not start .................................. 485
If you lose your keys ... 486
If the fuel filler door cannot be opened ................. 487
If the electronic key does not operate properly .. 488
If the vehicle battery is dis- charged ..................... 490
If your vehicle overheats .................................. 494If the vehicle becomes stuck
.................................. 496

4687-2. Steps to take in an emergency
■If “Engine Stopped Steering
Power Low” is displayed
This message is displayed if the
engine is stopped while driving.
When steering wheel operations are
heavier than usual, grip the steering
wheel firmly and operate it using
more force th an usual.
■If “Shift to P when Parked” is
displayed
This message is displayed when the
driver’s door is opened without turn-
ing the engine switch off with the
shift lever in any position other than
P. Change the shift lever to P.
■If “Auto Power OFF to Conserve
Battery” is displayed
Power was cut off due to the auto-
matic power off function. Next time
when starting the engine, increase
the engine speed slightly and main-
tain that level for approximately 5
minutes to recha rge the battery.
■If “Headlight System Malfunc-
tion Visit Your Dealer” is dis-
played
The following systems may be mal-
functioning. Have the vehicle
inspected by your Toyota dealer
immediately.
●The LED headlight system (if AFS
[Adaptive Front-lighting System]
equipped)
●AFS (Adaptive Fr ont-lighting Sys-
tem) (if equipped)
●The automatic headlight leveling
system (if equipped)
●Automatic High Beam
■If “Radar Cruise Control
Unavailable” is displayed
The dynamic radar cruise control
with full-speed range system cannot
be used temporarily. Use the system
when it becomes available again.
■If a message that indicates the
malfunction of front camera is
displayed
The following systems may be sus-
pended until the problem shown in
the message is resolved. (P.233,
462)
●PCS (Pre-Collision system)
●LTA (Lane Tracing Assist)
●Automatic High Beam
●RSA (Road Sign Assist) (if
equipped)
●Dynamic radar cruise control with
full-speed range
■If a message that indicates the
malfunction of radar sensor is
displayed
The following systems may be sus-
pended until the problem shown in
the message is resolved. (P.233,
462)
●PCS (Pre-Collision system)
●LTA (Lane Tracing Assist)
●Dynamic radar cruise control with
full-speed range
■If “AWD System Overheated
Switching to 2WD Mode” or
“AWD System Overheated 2WD
Mode Engaged” is displayed
This message may be displayed
when driving under extremely high
load conditions.
Drive the vehicle at low speeds or
stop the vehicle in a safe place with
the engine running until the mes-
sage is cleared.
If the message is not cleared, have
the vehicle inspected by your Toyota
dealer.
■If “Check Fuel Cap” is dis-
played
The fuel tank cap is not properly
installed. Correctly install the fuel
tank cap.

553Alphabetical Index
Clock ................................... 81, 84
Coat hooks .............................. 382
Condenser .............................. 414
Console box ............................ 365
Consumption screen.............. 108
Conversation mirror ............... 384
Cooling system ...................... 413Engine overheating .............. 494
Cruise control Dynamic radar cruise control with full-speed range .......... 257
Cup holders ............................ 366
Current fuel consumption . 86, 94
Curtain shield airbags ............. 34
Customizable features ........... 521
D
Daytime running light system216 Replacing light bulbs ............ 439
Defogger Outside rear view mirrors ... 335, 341, 345
Rear window ........ 335, 341, 345
Windshield............ 335, 341, 344
Differential Rear differential oil ............... 504
Digital Rearview Mirror .......... 155
Dimension ............................... 500
Dinghy towing ........................ 201
Display Dynamic radar cruise control with full-speed range .......... 257
Head-up display ................... 103
Intuitive parking assist .......... 284
LTA (Lane Tracing Assist) ..... 252
Multi-information display .. 84, 93
RCTA .................................... 293
Toyota Multi-operation touch 332
Warning message ................ 467
Distance until next engine oil change..................................... 83
Do-it-yourself maintenance ... 401 Door courtesy lights...............361
Door lock
Back door .............................121
Side doors ............................ 117
Smart key system .................133
Wireless remote control........ 115
Doors Automatic door locking and unlocking system ................120
Back door .............................121
Door glasses ........................167
Door lock ..............................121
Open door warning buzzer . 118, 120
Outside rear view mirrors .....165
Rear door child-protectors ....120
Downhill assist control system ...............................................316
Drive distance .....................88, 97
Drive information .. ..............88, 97
Driver’s seat position memory Driving position memory .......147
Memory recall function .........149
Drive-start control ..................180
Driving Break-in tips .........................180
Correct driving posture ...........25
Driving mode select switch ... 311
Procedures ...........................179
Winter drive tips....................324
Driving information display85, 94
Driving mode select switch ... 311
Driving position memory .......147 Memory recall function .........149
Driving range ................86, 94, 95
Driving support system informa- tion display........................87, 97
Dynamic radar cruise control with full-speed range............257Warning message.................267
Dynamic Torque Control AWD system ...................................319

554Alphabetical Index
Dynamic Torque Vectoring AWD system ................................... 319
E
Eco drive mode ...................... 311
Eco Driving Indicator . 86, 95, 106
Eco Driving Indicator Light86, 95
EDR (Event data recorder)......... 8
Elapsed time ....................... 88, 97
Electric Power Steering (EPS) ............................................... 318Warning light ........................ 458
Electronic key ......................... 114 Battery-saving function......... 134
If the electronic key does not operate properly ................. 488
Replacing the battery ........... 434
Electronic roof sunshade Jam protection function ........ 174
Operation ............................. 173
Emergency flashers ............... 448
Emergency, in case of If a warning buzzer sounds .. 456
If a warning light turns on ..... 456
If a warning message is dis-played................................. 467
If the battery is discharged ... 490
If the electronic key does not operate properly ................. 488
If the engin e will not start ..... 485
If the fuel filler door cannot be opened ............................... 487
If the vehicle is submerged or water on the road is rising .. 449
If you have a flat tire ............. 471
If you lose your keys ............ 486
If you think something is wrong ........................................... 454
If your vehicle becomes stuck ........................................... 496
If your vehicle has to be stopped in an emergency................. 448 If your vehicle needs to be towed
...........................................451
If your vehicle ove rheats ......494
Engine ACCESSORY mode . ............204
Compartment........................410
Engine switch .......................202
Fuel pump shut off system ...455
Hood .....................................408
How to start the engine ........202
Identification number ............501
If the engine will not start......485
If your vehicle has to be stopped in an emergency .................448
Ignition switch (engine switch) ...........................................202
Overheating ..........................494
Tachometer.............................81
Engine coolant Capacity ...............................503
Checking ..............................413
Preparing and checking before winter ..................................324
Engine coolant temperature gauge .......................................81
Engine immobilizer system .....71
Engine oil Capacity ...............................502
Checking ..............................410
Preparing and checking before winter ..................................324
Warning light.........................457
Engine oil maintenance data .412
Engine switch .........................202 Auto power off fun ction .........205
Changing the engine switch modes.................................204
If your vehicle has to be stopped in an emergency .................448
EPS (Electric Po wer Steering)
...............................................318 Warning light.........................458