2021 TOYOTA HIGHLANDER HYBRID air conditioning

3TABLE OF CONTENTS
1
2
3
4
5
6
7
8
9
10
HIGHLANDER HV_U
Parking brake ..................... 224
Brake Hold ......................... 227
4-3. Operating the lights and wip- ers
Headlight switch ................. 229
Automatic High Beam ........ 232
Fog light switch .................. 235
Windshield wipers and washer ......................................... 235
Rear windshield wiper and washer ............................. 238
4-4. Refueling Opening the fuel tank cap .. 240
4-5. Using the driving support sys- tems
Toyota Safety Sense 2.5 +......................................... 243
PCS (Pre-Collision System) ......................................... 249
LTA (Lane Tracing Assist)... 260
Dynamic radar cruise control with full-speed range ........ 271
RSA (Road Sign Assist) ..... 283
BSM (Blind Spot Monitor)... 286
Intuitive parking assist ........ 292
RCTA (Rear Cross Traffic Alert) function ............................ 300
PKSB (Parking Support Brake) ......................................... 305
Parking Support Brake function (static objects) .................. 312
Parking Support Brake function (rear-crossing vehicles).... 318
Driving mode select switch ......................................... 322
Trail Mode .......................... 323
Driving assist systems........ 325
4-6. Driving tips Hybrid vehicle driving tips .. 331
Winter driving tips............... 333
Utility vehicle precautions... 3365-1. Toyota multi-operation touch
Toyota multi-operation touch......................................... 340
5-2. Using the air conditioning system and defogger
Front automatic air conditioning
system ............................. 342
Rear automatic air conditioning system ............................. 354
Heated steering wheel/seat heaters/seat ventilators.... 358
5-3. Using the interior lights Interior lights list ................. 362
5-4. Using the storage features List of storage features ...... 365
Luggage compartment features ......................................... 370
5-5. Using the other interior fea- tures
Other interior features ........ 374
Garage door opener........... 390
6-1. Maintenance and care Cleaning and protecting the vehicle exterior................. 400
Cleaning and protecting the vehicle interior.................. 40
3
6-2. Maintenance
Maintenance requirements ........

................................. 406
General maintenance......... 408
Emission inspection and mainte- nance (I/M) programs ...... 410
6-3. Do-it-yourself maintenance Do-it-yourself service precau-tions ................................. 412
5Interior features
6Maintenance and care

4TABLE OF CONTENTS
HIGHLANDER HV_U
Hood ..................................414
Positioning a floor jack ....... 415
Engine compartment .......... 416
12-volt battery .................... 421
Tires ................................... 424
Tire inflation pressure......... 436
Wheels ............................... 438
Air conditioning filter ........... 439
Cleaning the hybrid battery (trac- tion battery) air intake vents
and filter ........................... 441
Electronic key battery ......... 444
Checking and replacing fuses ......................................... 446
Headlight aim ..................... 448
Light bulbs .......................... 449
7-1. Essential information Emergency flashers ........... 458
If your vehicle has to be stopped in an emergency .............. 458
If the vehicle is trapped in rising water ................................ 459
7-2. Steps to take in an emergency If your vehicle needs to be towed......................................... 461
If you think something is wrong ......................................... 464
If a warning light turns on or a warning buzzer sounds .... 466
If a warning message is dis- played .............................. 476
If you have a flat tire ........... 481
If the hybrid system will not start ......................................... 493
If you lose your keys .......... 495
If the fuel filler door cannot be opened ............................. 495
If the electronic key does not operate properly ............... 496If the 12-volt battery is dis-
charged ............................ 498
If your vehicle overheats .... 504
If the vehicle becomes stuck ......................................... 507
8-1. Specifications Maintenance data (fuel, oil level, etc.) .................................. 510
Fuel information ................. 518
Tire information .................. 520
8-2. Customization Customizable features ....... 530
8-3. Initialization Items to initialize ................ 542
9-1. For owners Reporting safety defects for U.S. owners ............................. 544
Seat belt instructions for Cana- dian owners (in French) ... 544
SRS airbag instructions for Canadian owners (in French)......................................... 546
Headlight aim instructions for Canadian owners (in French)......................................... 553
What to do if... (Troubleshooting) ......................................... 55
6
Alphab etical Index

..............559
7When trouble arises
8Vehicle specifications
9For owners
Index

16Pictorial index
HIGHLANDER HV_UWhen the warning messages are displayed ........................
P. 4 7 6
Turn signal lever.............................................. ................... P.223
Headlight switch ............................................... ................. P.229
Headlights/side marker lights/pa rking lights/tail lights/license plate
lights/daytime running lights .................................. ............... P.229
Front fog lights ............................................... ...................... P.235
Windshield wiper and washer sw itch....................... P.235, 238
Usage.......................................................... ................. P.235, 238
Adding washer fluid .............................................................. P.420
Warning messages ............................................... ............... P.476
Emergency flasher switch ....................................... .......... P.458
Hood lock release lever ........................................ ............. P.414
Tilt and telescopic steering lock release lever ................P. 1 6 5
Adjustment ..................................................... ...................... P.165
Air conditioning system ............................. ....................... P.342
Usage................................................................................... P.342
Rear window defogger ........................................... .............. P.344
Windshield wiper de-icer
*1................................................... P.344
Audio system
*2
Fuel filler door opener swi tch ........................................... P.240
*1: If equipped
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MAN-
UAL”.

751-4. Hybrid system
1
For safety and security
HIGHLANDER HV_UThe illustration is an example for
explanation and may differ from the actual
item.
Warning label
Service plug
High voltage cables (orange)
Power control unit
Hybrid battery (traction battery)
Rear electric motor (traction motor)
*
Front electric motor (traction motor)
Air conditioning compressor
*: AWD models only
■Running out of fuel
When the vehicle has run out of fuel
and the hybrid system cannot be
started, refuel th e vehicle with at least enough gasoline to make the
low fuel level warning light (
P.469)
go off. If there is only a small
amount of fuel, the hybrid system
may not be able to start. (The stan-
dard amount of fuel is about 2.9 gal.
Hybrid system precautions
Take care when handling the hybrid system, as it is a high
voltage system (about 650 V at maximum) as well as contains
parts that become extremely hot when the hybrid system is
operating. Obey the warning labels attached to the vehicle.
System components

2484-5. Using the driving support systems
HIGHLANDER HV_U
●In the following situations, if the situation has changed (or the vehicle has
been driven for some time) and the normal operating conditions are
detected, the message will disappear and the system will become opera-
tional.
If the message does not disappea r, contact your Toyota dealer.
• When the temperature around the radar sensor is outside of the opera-
tional range, such as when the vehicle is in the sun or in an e xtremely cold
environment
• When the front camera cannot d etect objects in front of the vehicle, such
as when driving in the dark, sno w, or fog, or when bright lights are shining
into the front camera
• Depending on the conditions in the vicinity of the vehicle, th e radar may
judge the surrounding environment can not be properly recognize d. In that
case, “Pre-Collision System Unavailable See Owner' s Manual” is dis-
played.
When the temperature around the
front camera is out side of the opera-
tional range, such as when the vehi-
cle is in the sun or in an extremely
cold environment
If the front camera is hot, such as
after the vehicle had been parked in
the sun, use the air conditioning sys-
tem to decrease the temperature
around the front camera.
If a sunshade was used when the
vehicle was parked, depending on its
type, the sunlight r eflected from the
surface of the sunshade may cause
the temperature of the front camera
to become exce ssively high.
If the front camera is cold, such after
the vehicle is parked in an extremely
cold environment, use the air condi-
tioning system to increase the tem-
perature around the front camera.
The area in front of the front camera
is obstructed, such as when the
hood is open or a sticker is attached
to the part of the windshield in front
of the front camera.
Close the hood, remove the sticker,
etc. to clear the obstruction.
When “Pre-Collisi on System Radar
In Self Calibration Unavailable See
Owner's Manual” is displayed.Check whether there is attached
materials on the radar sensor and
radar sensor cover, and if there is,
remove it.
SituationActions

2954-5. Using the driving support systems
4
Driving
HIGHLANDER HV_U
■The system can be operated
when
●The power switch is in ON.
●Intuitive parking assist function is
on.
●The vehicle speed is less than
about 6 mph (10 km/h).
●A shift lever other than P.
■If “Parking Assist Unavailable”
is displayed on the multi-infor-
mation display
●Water may be continuously flow-
ing over the sensor surface, such
as in a heavy rain. When the sys-
tem determines that it is normal,
the system will return to normal.
●Initialization may not have been
performed after a battery terminal
was disconnected and recon-
nected. Initialize the system.
(  P.295) If this message contin-
ues to be displayed even after ini-
tialization, have the vehicle
inspected by you r Toyota dealer.
■If “Parking Assist Unavailable
Clean Parking Assist Sensor” is
displayed on the multi-informa-
tion display
A sensor may be covered with ice,
snow, dirt, etc. Remove the ice,
snow, dirt, etc., from the sensor to
return the system to normal.
Also, due to ice forming on a sensor
at low temperatures, a warning
message may be displayed or the
sensor may not be able to detect an
object. Once the ice melts, the sys-
tem will return to normal.
■If a 12-volt battery terminal has
been disconnected and recon-
nected
The system needs to be initialized.
To initialize the system, drive the
vehicle straight ahead for 5 seconds
or more at a speed of approximately
22 mph (35 km/h) or more.
■Sensor detection information
●The following situations may occur
during use.
• The sensor's detec tion areas are
limited to the areas around the
vehicle front and rear bumpers.
• Depending on the shape of the object and other factors, the
detection distance may shorten, or
detection may be impossible.
• If an object is extremely close to a sensor, it may not be detected.
• There will be a short delay between object detection and dis-
play. Even at low speeds, there is
a possibility that the object will
come within the sensor’s detec-
tion areas before the display is
shown and the warning beep
sounds.
• It might be diffic ult to hear the
buzzer due to the volume of the
audio system or air flow noise of
the air conditioning system.
• It may be diffi cult to hear the
buzzer if buzzers for other sys-
tems are sounding.
■Conditions under which the
function may not function cor-
rectly
Certain vehicle conditions and the
surrounding environment may affect
the ability of a sensor to correctly
detect objects. Part icular instances
where this may occur are listed
below.
●There is dirt, snow or ice on a sen-
sor. (Cleaning the sensors will
resolve this problem.)
●A sensor is froz en. (Thawing the
area will resolve this problem.)
In especially cold weather, if a
sensor is frozen the sensor dis-
WARNING
●When using steam to clean the
vehicle, do not direct steam too
close to the sensors as doing so
may cause a sens or to malfunc-
tion.

3214-5. Using the driving support systems
4
Driving
HIGHLANDER HV_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

3234-5. Using the driving support systems
4
Driving
HIGHLANDER HV_Umany curves.
When Sport mode is selected,
Sport mode indicator comes on.
3
Eco drive mode
Helps the driver a ccelerate in an
eco-friendly manner and improve
fuel economy through moderate
throttle characteri stics and by con-
trolling the operation of the air con-
ditioning system (heating/cooling).
When Eco drive mode is selected,
Eco drive mode indicator comes
on.
■Air conditioning system opera-
tion in Eco drive mode
In Eco drive mode, heating/cooling
operations and the fan speed is con-
trolled to improve fuel efficiency.
Perform the following procedures to
increase the air conditioning perfor-
mance.
●Vehicle with a 12.3-inch display:
Turn eco air conditioning mode off
(  P.350)
●Adjust the fan speed ( P.343)
●Cancel Eco drive mode
■Canceling a driving mode
●Sport mode is automatically can-
celed and the driving mode
returns to normal mode when the
power switch is off.
●Normal mode and Eco drive mode
are not canceled until another
driving mode is sel ected. (Even if
the power switch is off, normal
mode and Eco drive mode will not
be automatically canceled.)
Press the Trail Mode switch
When the switch is pressed, Trail
Mode turns on and the Trail Mode
indicator illuminates on the
multi-information display.
When the switch is pressed again,
the Trail Mode indicator turns off.
Trail Mode (AWD vehi-
cles)
Trail Mode is a system that
performs integrated control
for the AWD, brake and
drive force control systems
to assist the drive power on
bumpy roads, etc.
WARNING
■Before using Trail Mode
Make sure to observe the follow-
ing precautions. Failure to
observe these precautions may
result in an unexp ected accident.
●Check that the Trail Mode indi-
cator is illuminated before driv-
ing. Trail Mode will not operate
when the indicator is off.
●Trail Mode is not intended to
expand the limits of the vehicle.
Thoroughly check the road con-
ditions and drive with caution.
●Thoroughly check the road con-
ditions before driving. As Trail
Mode is suitable for driving on
bumpy roads, there is a chance
that Trail Mode may not be the
most appropriate in terms of
other road conditions.
Turning Trail Mode on