brake sensor TOYOTA HIGHLANDER 2021 (in English) Owner's Manual

3124-5. Using the driving support systems
HIGHLANDER_U
■Conditions under which the
Parking Support Brake func-
tion (rear-crossing vehicles)
will not detect a vehicle
The Parking Support Brake function
(rear-crossing vehicles) is not
designed to detect the following
types of vehicles and/or objects:
●Vehicles approaching from directly
behind
●Vehicles backing up in a parking
space next to your vehicle
●Vehicles that the sensors cannot
detect due to obstructions
●Vehicles which suddenly acceler-
ate or decelerate near your vehi-
cle
●Guardrails, walls, signs, parked
vehicles and similar stationary
objects
●Small motorcycles, bicycles,
pedestrians, etc.*
●Vehicles moving away from your
vehicle
●Vehicles approaching from the
parking spaces next to your vehi-
cle
*
●Objects which are extremely close
to a radar sensor*
●Vehicles which are approaching
from the right or left at the rear of
the vehicle at a traveling speed of
less than approxi mately 5 mph (8
km/h)
●Vehicles which are approaching
from the right or left at the rear of
the vehicle at a traveling speed of
more than approximately 15 mph
(24 km/h)
*: Depending on the conditions,
detection of a v ehicle and/or
object may occur.
■PKSB buzzer
If the Parking Support Brake is
enabled and brake control is per-
formed, a buzzer will sound to notify
the driver.
■Situations in which the system
may operate even though there
is no possibility of a collision
In some situations such as the fol-
lowing, the Parking Support Brake
function (rear-cro ssing vehicles)
may operate even t hough there is
no possibility of a collision.
●When the parking space faces a
street and vehicles are being
driven on the street
●When a detected vehicle turns
while approaching the vehicle
●When a vehicle passes by the
side of your vehicle

3134-5. Using the driving support systems
4
Driving
HIGHLANDER_U
●When the distance between your
vehicle and metal objects, such as
a guardrail, wall, sign, or parked
vehicle, which may reflect electri-
cal waves toward the rear of the
vehicle, is short
●When there are spinning objects
near your vehicle such as the fan
of an air conditioning unit
●When water is splashed or
sprayed toward t he rear bumper,
such as from a sprinkler
■Situations in which the Parking
Support Brake function
(rear-crossing vehicles) may
not operate properly
In some situations, such as the fol-
lowing, the radar sensors may not
detect an object and this function
may not operate properly
●Stationary objects
●When a sensor or the area around
a sensor is extremely hot or cold
●If the rear bumper is covered with
ice, snow, dirt, etc.
●If a sensor has been painted or
covered with a sticker, etc.
●When it is raining heavily or water
strikes the vehicle
●If the vehicle is s ignificantly tilted
●When equipment that may
obstruct a sensor is installed, such
as a towing eyelet, bumper pro-
tector (an additional trim strip,
etc.), bicycle carrier, or snow plow
●If the suspension has been modi-
fied or tires of a size other than
specified are installed
●If the front of the vehicle is raised or lowered due to the carried load
●If an electronic component, such
as a backlit license plate (espe-
cially fluorescent t
ype), fog lights,
fender pole or wireless antenna is
installed near a radar sensor
●If the orientation of a radar sensor
has been changed
●When multiple vehicles are
approaching with only a small gap
between each vehicle
●If a vehicle is approaching the rear
of your vehicle rapidly
●Situations in which the radar sen-
sor may not detect a vehicle
• When a vehicle approaches from
the right or left at the rear of the
vehicle while you are turning while
backing up
• When turning while backing up
• When backing out of a shallow angle parking spot
• When backing up on a slope with a sharp change in grade

3224-5. Using the driving support systems
HIGHLANDER_U
wheel
■Dynamic Torque Control
AWD system (AWD models)
Automatically switches from
front-wheel drive to all-wheel
drive (AWD) according to the
driving conditions, helping to
ensure reliable handling and
stability. Examples of conditions
where the system will switch to
AWD are when cornering, going
uphill, starting off or accelerat-
ing, and when the road surface
is slippery due to snow, rain, etc.
■Dynamic Torque Vectoring
AWD system (AWD models)
Automatically switches from
front-wheel drive to all-wheel
drive (AWD) according to the
driving conditions, helping to
ensure reliable handling and
stability. Examples of conditions
where the system will switch to
AWD are when cornering, going
uphill, starting off or accelerat-
ing, and when the road surface
is slippery due to snow, rain, etc.
Also, when the vehicle is corner-
ing, the drive torque distribution
between the front and rear
wheels and between the rear left
and right wheels is precisely
controlled to improve drivability
and stability.
■The Secondary Collision
Brake
When the SRS airbag sensor
detects a collision and the sys- tem operates, the brakes and
brake lights are automatically
controlled to reduce the vehicle
speed and help reduce the pos-
sibility of further damage due to
a secondary collision.
■When the TRAC/VSC/Trailer
Sway Control systems are oper-
ating
The slip indicator light will flash
while the TRAC/VSC/Trailer Sway
Control systems are operating.
■Disabling the TRAC system
If the vehicle gets stuck in mud, dirt
or snow, the TRAC system may
reduce power from the engine to the
wheels. Pressing the switch to
turn the system off may make it eas-
ier for you to rock the vehicle in
order to free it.
To turn the TRAC system off, quickly
press and release the switch.
The “Traction Cont rol Turned OFF”
will be shown on the multi-informa-
tion display.
Press the switch again to turn
the system back on.

3244-5. Using the driving support systems
HIGHLANDER_Utions 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

4637-2. Steps to take in an emergency
7
When trouble arises
HIGHLANDER_U
■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.287)
Warning lightDetails/Actions
(flashes)
(if equipped)
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.280)
 Follow the instructions di splayed on the multi-infor-
mation display. ( P.293)
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.302, 468)

4657-2. Steps to take in an emergency
7
When trouble arises
HIGHLANDER_U
■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.

549What to do if... (Troubleshooting)
HIGHLANDER_U
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.208)
 It is locked automatically to
prevent theft of the vehicle.
( P.202)
 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.461)
 The parking brake indicator is
on
Is the parking br ake released?
(  P. 2 1 1 )
Depending on the situation,
other types of warning buzzer
may also sound. ( P.458, 468)
 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.468)
 When a warning light turns on
The shift lever cannot be
shifted from P even if you
depress the brake pedal
The steering wheel can-
not be turned after the
engine is stopped
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

552Alphabetical Index
HIGHLANDER_UAutomatic light control system
............................................... 217
Automatic transmission ........ 206 If the shift lever cannot be shifted from P................................. 208
M mode ................................ 208
Auxiliary boxes ............... 369, 374
Average fuel economy ....... 86, 94
Average vehicle speed....... 88, 97
AWD Control ....................... 88, 97
B
Back door ................................ 121
Back-up lights Replacing light bulbs ............ 441
Battery Battery checking................... 416
If the battery is discharged ... 491
Preparing and c hecking before
winter.................................. 327
Replacing ............................. 493
Warning light ........................ 459
Blind Spot Monitor (BSM) ...... 278
Brake Brake hold ............................ 214
Fluid ............................. 416, 504
Parking brake ....................... 211
Warning light ........................ 458
Brake assist ............................ 321
Break-in tips ........ ................... 180
Brightness control Instrument panel light control . 83
BSM (Blind Spot Monitor) ...... 278
Buzzer Hands off steering wheel warn-ing (LTA) ............................. 255
C
Care Exterior ................................. 396
Interior .................................. 399 Seat belts .............................399
Wheels and wheel ornaments
...........................................396
Cargo capacity ........................189
Cargo net hooks .....................371
Chains......................................328
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 Airbag precautions .................39
Back door precautions..........121
Battery precautions ......417, 494
Child restraint system .............52
Heated steering wheel and seat heater precautio ns..............360
How your child should wear the seat belt ................................28
Moon roof precautions..........171
Panoramic moon roof precau- tions ....................................175
Power window lock switch ....169
Power window precautions...168
Rear door child-protectors ....120
Seat belt extender precautions .............................................29
Seat belt precautions..............49
Child-protectors......................120
Cleaning Exterior .................................396
Interior ..................................399
Radar sensor ........................230
Seat belts .............................399
Wheels and wheel ornaments...........................................396

560Alphabetical Index
HIGHLANDER_USeat belt pretensioners .......... 32
SRS warning light................. 459
Seat heaters ............................ 360
Seat position memory ............ 147
Seat ventilators ...................... 360
Seating capacity ..................... 189
Seats Adjustment ........................... 141
Adjustment precautions........ 141
Child seats/child restraint system installation ............................ 50
Cleaning ............................... 399
Driving position memory....... 147
Head restraints ..................... 150
Properly sitting in the seat ...... 25
Seat heaters ......................... 360
Seat position memory .......... 147
Seat ventilators .................... 360
Sensor Automatic headlight system . 217
Automatic High Beam system........................................... 219
Digital Rearview Mirror ......... 159
Inside rear view mirror.......... 155
Intuitive parking assist .......... 284
LTA (Lane Tracing Assist) ..... 246
Parking Support Brake function (rear-crossing vehicles) ...... 310
Parking Support Brake function (static objects) .................... 305
Radar sensor................ 229, 280
Rain-sensing windshield wipers ........................................... 224
RCTA .................................... 293
Service reminder message .... 403
Shift lever Automatic transmission ........ 206
If the shift lever cannot be shifted from P................................. 208
Shift lever light ....................... 363
Shift lock system .................... 207
Shopping bag hooks .............. 371 Side airbags ..............................34
Side doors
Door lock .............................. 117
Side marker lights Light switch...........................216
Replacing light bulbs ............441
Side mirrors Adjustment ...........................165
BSM (Blind Sport Monitor) ....278
Heaters .................337, 343, 347
Linked mirror function when reversing.............................165
Mirror position me mory.........147
RCTA function.......................292
Side turn signal lights Replacing light bulbs ............441
Turn signal lever ...................210
Side windows ..........................167
Smart key system Antenna location...................133
Entry functions.............. 117, 123
Starting the engine ...............202
Snow mode switch .................318
Snow tires ...............................327
Spare tire .................................472 Storage location ...................473
Spark plug ...............................503
Specifications .........................500
Speedometer .............................81
Sport mode..............................314
Steering lock Column lock releas e .............202
Steering lock system warning message .............................202
Steering wheel Adjustment ...........................153
Heated steering wheel..........360
Meter control switches......85, 94
Stop & Start syste m ...............272
Warning light.........................462
Stop lights Replacing light bulbs ............441