2022 TOYOTA HIGHLANDER HYBRID brake sensor

3254-5. Using the driving support systems
4
Driving
■Active Cornering Assist opera-
tion sounds and vibrations
When the Active Cornering Assist is
operated, operation sounds and
vibrations may b e generated from
the brake system, but this is not a
malfunction.
■EPS operation sound
When the steering wheel is oper-
ated, a motor sou nd (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 hybrid
system off. The E PS system 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 power 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
■If a messege about AWD is
shown on the multi-information
display (AWD models)
Perform the following actions.
●“AWD System Overheated
Switching to 2WD Mode.” AWD
system is overheated. Stop the
vehicle in a safe place with the
hybrid system operating. If the
message disappears after a while,
there is no problem. If the mes-
sage remains, have the vehicle
inspected by your Toyota dealer
immediately.
●“AWD System Overheated 2WD
Mode Engaged.” AWD system
has been temporarily released
and switched to front-wheel drive
due to overheating. Stop the vehi-
cle in a safe place with the hybrid
system operating. If the message
disappears after a while, AWD
system will automatically recover.
If the message remains, have the
vehicle inspected by your Toyota
dealer immediately.
●“AWD system Malfunction 2WD
Mode Engaged Visit Your Dealer.”
A malfunction occurs in the AWD
system. Have the vehicle
inspected by your Toyota dealer
immediately.
*: When stopping the vehicle, do not stop the hybrid system until the
display message has turned off.
■Secondary Collision Brake
operating conditions
The system operates when the SRS
airbag sensor de tects 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)

4697-2. Steps to take in an emergency
7
When trouble arises
■Intuitive parking assist OFF indicator (warning buzzer)
■RCTA OFF indicator* (warning buzzer)
*: This light illuminat es on the multi-information display.
■PKSB OFF indicator (warning buzzer)
Warning lightDetails/Actions
(flashes)
(if equipped)
Indicates a malfunction in the intuitive parking assist func-
tion
 Have the vehicle inspected by your Toyota dealer
immediately.
Indicates that the system is te mporarily unavailable, possi-
bly due to a sensor being dirty or covered with ice, etc.
 Follow the instructions di splayed on the multi-infor-
mation display. ( P.295)
Warning lightDetails/Actions
(flashes)
When a buzzer sounds:
Indicates a malfunction in the RCTA (Rear Cross Traffic
Alert) function
 Have the vehicle inspected by your Toyota dealer
immediately.
When a buzzer does not sound:
Indicates that the re ar bumper around the radar sensor is
covered with dirt, etc. ( P.288)
 Follow the instructions di splayed on the multi-infor-
mation display. ( P.302)
Warning lightDetails/Actions
(flashes)
(if equipped)
When a buzzer sounds:
Indicates a malfunction in the PKSB (Parking Support
Brake) system
 Have the vehicle inspected by your Toyota dealer
immediately.
When a buzzer does not sound:
Indicates that the system is te mporarily unavailable, possi-
bly due to a sensor being dirty or covered with ice, etc.
 Follow the instructions di splayed on the multi-infor-
mation display. ( P.313, 474)

4717-2. Steps to take in an emergency
7
When trouble arises
■Parking brake indicator (warning buzzer)*
*: A buzzer will sound if the vehicle is driven at a speed of app roximately 3
mph (5 km/h) or more.
■Brake hold operated indicator
■Warning buzzer
In some cases, the buzzer may not
be heard due to being in a noisy
location or audio sound.
■Front passenger detection sen-
sor, seat belt reminder and
warning buzzer
●If luggage is placed on the front
passenger seat, the front passen-
ger detection sensor may cause
the warning light to flash and the
warning buzzer to sound even if a
passenger is not sitting in the
seat.
●If a cushion is placed on the seat,
the sensor may n ot detect a pas-
senger, and the warning light may
not operate properly.
■SRS warning light
This warning light system monitors
the airbag sensor assembly, front
impact sensors, side impact sensors
(front), side impact sensors (front door), side impact sensors (rear),
driver’s seat position sensor,
driver’s seat belt buckle switch, front
passenger occupan
t classification
system (ECU and s ensors), “PASS
AIR BAG ON” indicator light, “PASS
AIR BAG OFF” indicator light, front
passenger’s seat belt buckle switch,
driver’s seat belt pretensioner, front
passenger’s seat b elt pretensioner
and force limiter, airbags, intercon-
necting wiring and power sources.
(  P. 3 4 )
■If the malfunction indicator
lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
●Is the fuel ta nk cap loose?
If it is, tighten it securely.
The light will go off after several
driving trips.
If the light does not go off even after
several trips, con tact your Toyota
Warning lightDetails/Actions
(flashes)
(U.S.A.)
or
(flashes)
(Canada)
It is possible that the parking brake is not fully engaged or
released
 Operate the parking brake switch once again.
This light comes on when the parking brake is not released.
If the light turns of f after the parking brake is fully release d,
the system is operating normally.
Warning lightDetails/Actions
(flashes)
Indicates a malfunction in the brake hold system
 Have the vehicle inspected by your Toyota dealer
immediately.

555What to do if... (Troubleshooting)
Is the power switch in ON?
If you cannot release the shift lever
by depressing the brake pedal with
the power switch in ON ( P.220)
 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.181)
 The auto power off function
will be operated if the vehicle
is left in ACC or ON (the
hybrid system is not operat-
ing) for a period of time.
( P.216)
 The seat belt reminder light is
flashing
Are the driver and the passengers
wearing the seat belts? ( P.467)
 The parking brake indicator is
on
Is the parking br ake released?
(  P.223)
Depending on the situation,
other types of warning buzzer
may also sound. ( P.464, 474)
 Did anyone inside the vehicle
open a door during setting the
alarm?
The sensor detects it and the alarm
sounds. ( P. 8 1 )
Do one of the following to stop
the alarms:
 Unlock the doors.
 Turn the power switch to ACC
or ON, or start the hybrid sys-
tem.
 Is the message displayed on
the multi-information display?
Check the message on the
multi-informat ion display. (P.474)
 When a warning light turns on
or a warning message is dis-
played, refer to P.464, 474.
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 power 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

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

566Alphabetical Index
ReplacingElectronic key battery ........... 442
Fuses ................................... 444
Light bulbs ............................ 447
Tires ..................................... 479
Reporting safety defects for U.S. owners................................... 542
Resetting the message indicat- ing maintenance is required 405
Road Sign Assist .................... 283
RSA (Road Sign Assist) ......... 283
S
Safety Connect ......................... 65
Seat belt reminder light . 467, 468
Seat belts .................................. 27 Automatic Locking Retractor .. 28
Child restraint system installation............................................. 52
Cleaning and maintaining the seat belt.............................. 401
Emergency Locking Retractor 28
How to wear your seat belt..... 28
How your child should wear the seat belt................................ 28
Pregnant women, proper seat belt use................................. 27
Reminder light and buzzer . 467, 468
Seat belt extender .................. 28
Seat belt pretensioners .......... 32
SRS warning light................. 466
Seat heaters ............................ 356
Seat position memory ............ 159
Seat ventilators ...................... 356
Seating capacity ..................... 200
Seats Adjustment ........................... 153
Adjustment precautions........ 153
Child seats/child restraint system installation ............................ 50
Cleaning ............................... 401 Driving position memory .......159
Head restraints .....................162
Properly sitting in the seat ......25
Seat heaters .......
..................356
Seat position memory...........159
Seat ventilators.....................356
Sensor Automatic headlight system .230
Automatic High Beam system...........................................232
Digital Rearview Mirror .........171
Inside rear view mirror ..........167
Intuitive parking assist ..........292
LTA (Lane Tracing Assist) .....260
Parking Support Brake function (rear-crossing vehicles) ......318
Parking Support Brake function (static objects) ....................316
Radar sensor ................243, 288
Rain-sensing windshield wipers ...........................................237
RCTA ....................................303
Service plug ..............................75
Service reminder message ....405
Shift lever Hybrid transmission ..............219
If th e s hif t le ver ca n no t b e s hif te d from P .................................220
Shift lever light........................360
Shift lock system ....................220
Shopping bag hooks ..............368
Side airbags ..............................34
Side doors Door lock ..............................131
Side marker lights Light switch...........................229
Replacing light bulbs ............447
Side mirrors Adjustment ...........................177
BSM (Blind Sport Monitor) ....286
Heaters .........................342, 346