2022 TOYOTA HIGHLANDER check engine light

4647-2. Steps to take in an emergency
dealer as soon as possible.
■Electric power steering system
warning light (warning buzzer)
When the battery charge becomes
insufficient or the voltage temporar-
ily drops, the electric power steering
system warning light may come on
and the warning buzzer may sound.
■When the tire pressure warning
light comes on
Inspect the tires to check if a tire is
punctured.
If a tire is punctured: P.471
If none of the tires are punctured:
Turn the engine switch off then turn
it to ON. Check if the tire pressure
warning light comes on or blinks.
If the tire pressure warning light
blinks for 1 minute then stays on
There may be a malfunction in the
tire pressure warning system. Have
the vehicle inspected by your Toyota
dealer immediately.
If the tire pressure warning light
comes on
1 After the temperature of the tires
has lowered sufficiently, check
the inflation pressure of each tire
and adjust them to the specified
level.
2 If the warning light does not turn
off even after several minutes
have elapsed, check that the
inflation pressure of each tire is
at the specified level and perform
initialization. ( P.424)
If the warning light does not turn off
several minutes afte r the initializa-
tion has been performed, have the
vehicle inspected by your Toyota
dealer immediately.
■The tire pressure warning light
may come on due to natural
causes
The tire pressure warning light may
come on due to natural causes such
as natural air leaks and tire inflation
pressure changes caused by tem- perature. In this ca
se, adjusting the
tire inflation pressure will turn off the
warning ligh t (after a few minutes).
■When a tire is replaced with a
spare tire
Vehicles with a co mpact spare tire:
The compact spare tire is not
equipped with a tire pressure warn-
ing valve and tran smitter. If a tire
goes flat, the tire pressure warning
light will not turn off even though the
flat tire has been replaced with the
spare tire. Replace the spare tire
with the repaired tire and adjust the
tire inflation pressure. The tire pres-
sure warning light will go off after a
few minutes.
Vehicles with a full-size spare tire:
The spare tire is also equipped with
a tire pressure warning valve and
transmitter. The tire pressure warn-
ing light will turn on if the tire infla-
tion pressure of the spare tire is low.
If a tire goes flat, the tire pressure
warning light will no t turn off even
though the flat tire has been
replaced with the spare tire.
Replace the spare tire with the
repaired tire and adjust the tire infla-
tion pressure. The tire pressure
warning light will go off after a few
minutes.
■Conditions that the tire pres-
sure warning system may not
function properly
 P.420
WARNING
■If both the ABS and the brake
system warning lights remain
on
Stop your vehicle in a safe place
immediately and contact your Toy-
ota dealer.
The vehicle will become
extremely unstable during brak-
ing, and the ABS system may fail,
which could cause an accident
resulting in death o r serious injury.

4677-2. Steps to take in an emergency
7
When trouble arises
The warning lights and warning buzzers operate as follows depend-
ing on the content of the message. If a message indicates the need
for inspection by a dealer, have the vehicle inspected by your To y o t a
dealer immediately.
*: A buzzer sounds the first time a message is shown on the multi-informa-
tion display.
■Warning messages
The warning messages explained
below may differ from the actual
messages according to operation
conditions and vehicle specifica-
tions.
■Warning buzzer
In some cases, the buzzer may not
be heard due to being in a noisy
location or audio sound.
■If “Engine Oil Level Low Add or
Replace” is displayed
The engine oil level 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.
Messages and warnings
Warning lightWarning
buzzer
*Warning
-Sounds
 Indicates an important situation, such as
when a system relate d to driving is mal-
functioning or that danger may result if
the correction procedure is not per-
formed
 Indicates a situation, such as when dam-
age to the vehicle or danger may result
Comes on or
flashesSounds
Indicates an importan t situation, such as
when the systems shown on the
multi-information display may be malfunc-
tioning
-Does not sound
 Indicates a condition, such as malfunc-
tion of electrical components, their condi-
tion, or indicates the need for
maintenance
 Indicates a situatio n, such as when an
operation has been performed incor-
rectly, or indicates how to perform an
operation correctly

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.

549What to do if... (Troubleshooting)
Is the engine switch in ON?
If you cannot release the shift lever
by depressing the brake pedal with
the engine switch in ON ( P.207)
 Is the window lock switch
pressed?
The power window except for the
one at the driver’s seat cannot be
operated if the win dow lock switch
is pressed. ( P.169)
 The auto power off function
will be operated if the vehicle
is left in ACC or ON (the
engine is not running) for a
period of time. ( P.205)
 The seat belt reminder light is
flashing
Are the driver and the passengers
wearing the seat belts? ( P.459)
 The parking brake indicator is
on
Is the parking brake released?
( P.210)
Depending on the situation,
other types of warning buzzer
may also sound. ( P.456, 467)
 Did anyone inside the vehicle
open a door during setting the
alarm?
The sensor detects it and the alarm
sounds. ( P. 7 3 )
Do one of the following to stop
the alarms:
 Unlock the doors.
 Turn the engine switch to
ACC or ON, or start the
engine.
 Is the message displayed on
the multi-information display?
Check the message on the
multi-informat ion display. (P.467)
 When a warning light turns on
or a warning message is dis-
played, refer to P.456, 467.
The shift lever cannot be
shifted from P even if you
depress the brake pedal
The windows do not open
or close by operating the
power window switches
The engine switch is
turned off automatically
A warning buzzer sounds
during driving
An alarm is activated and
the horn sounds (vehicles
with an alarm)
A warning buzzer sounds
when leaving the vehicle
A warning light turns on
or a warning message is
displayed

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

563Alphabetical Index
Brake system ....................... 456
Charging system .................. 457
Downshifting......................... 208
Drive-Start Control ............... 458
Electric power steering ......... 458
Engine .................................. 457
Hands off steering wheel warn-ing (LTA) ............................. 255
High coolant temperature ..... 456
Intuitive parking assist . 289, 292,
461
Low engine oil pressure ....... 457
LTA (Lane Tracing Assist) ... 246, 250, 460
Open door .................... 118, 120
PKSB (Parking Support Brake) ........................................... 461
Pre-collision braking ............. 237
RCTA (Rear Cross Traffic Alert) ........................................... 461
RCTA function ...................... 295
Seat belt ............................... 459
Warning lights ........................ 456 ABS ...................................... 458
Brake hold operated indicator........................................... 463
Brake Override System ........ 458
Brake system ....................... 456
Charging system .................. 457
Drive-Start Control ............... 458
Electric power steering ......... 458
High coolant temperature ..... 456
Intuitive parking assist OFF indi- cator ................................... 461
Low engine oil pressure ....... 457
Low fuel level ....................... 459
LTA indicator ......................... 460
Malfunction indicator lamp ... 457
Parking brake indicator ........ 463
PKSB OFF indicato r ............. 461
Pre-collision system ............. 462
RCTA OFF indicator ............. 461 Seat belt reminder light ........459
Slip indicator .........................462
SRS ......................................457
Stop & Start cancel indicator 460
Tire pressure ......
..................460
Warning message .............92, 102
Warning messages .................467
Washer Adding ..................................416
Preparing and checking before winter ..................................324
Switch ...........................222, 225
Washing and waxing ..............394
Weight Cargo capacity .....................189
Load limits ............................189
Weight ..................................500
Wheels .....................................431 Size ......................................505
Window lock switch ...............169
Windows Power windows ....................167
Rear window defogger 335, 341, 345
Washer .........................222, 225
Windshield defogger .....335, 341, 344
Windshield wiper de -icer .....336,
341, 349
Windshield wipers Rain-sensing windshield wipers...................................222, 225
Winter driving tips ..................324
Wireless charger.....................374
Wireless remote control Battery-Saving Function .......134
Locking/Unlocking ................ 115
Replacing the battery ...........434