2023 TOYOTA HIGHLANDER HYBRID air conditioning

3TABLE OF CONTENTS
1
2
3
4
5
6
7
8
9
10
Hybrid transmission............213
Turn signal lever................. 216
Parking brake ..................... 217
Brake Hold ......................... 220
4-3. Operating the lights and wip- ers
Headlight switch ................. 223
Automatic High Beam ........ 226
Fog light switch .................. 229
Windshield wipers and washer ......................................... 229
Rear windshield wiper and washer ............................. 232
4-4. Refueling Opening the fuel tank cap .. 234
4-5. Using the driving support sys- tems
Toyota Safety Sense 2.5 +......................................... 237
PCS (Pre-Collision System) ......................................... 242
LTA (Lane Tracing Assist)... 253
Dynamic radar cruise control with full-speed range ........ 263
RSA (Road Sign Assist) ..... 275
BSM (Blind Spot Monitor)... 278
Intuitive parking assist ........ 283
RCTA (Rear Cross Traffic Alert) function ............................ 291
PKSB (Parking Support Brake) ......................................... 297
Parking Support Brake function (static objects) .................. 304
Parking Support Brake function (rear-crossing vehicles).... 307
Driving mode select switch ......................................... 308
Trail Mode .......................... 309
Driving assist systems........ 311
4-6. Driving tips Hybrid Electric Vehicle driving tips ................................... 318Winter driving tips ..............
320
Utility vehicle precautions .. 323
5-1. Using the air conditioning system and defogger
Front automatic air conditioning
system ............................. 328
Rear automatic air conditioning system ............................. 337
Heated steering wheel/seat heaters/seat ventilators.... 341
5-2. Using the interior lights Interior lights list ................. 343
5-3. Using the storage features List of storage features ...... 346
Luggage compartment features ......................................... 350
5-4. Using the other interior fea- tures
Other interior features ........ 355
Garage door opener........... 370
6-1. Maintenance and care Cleaning and protecting the vehicle exterior................. 380
Cleaning and protecting the vehicle interi or.................. 38

3
6-2. Maintenance Maintenance requirements......................................... 386
General maintenance......... 388
Emission inspection and mainte- nance (I/M) programs ...... 390
6-3. Do-it-yourself maintenance Do-it-yourself service precau-tions ................................. 392
Hood .................................. 394
5Interior features
6Maintenance and care

4TABLE OF CONTENTS
Positioning a floor jack .......395
Engine compartment .......... 396
12-volt battery .................... 402
Tires ................................... 404
Tire inflation pressure......... 415
Wheels ............................... 417
Air conditioning filter ........... 418
Cleaning the hybrid battery (trac- tion battery) air intake vents......................................... 420
Electronic key battery ......... 423
Checking and replacing fuses ......................................... 425
Headlight aim ..................... 427
Light bulbs .......................... 428
7-1. Essential information Emergency flashers ........... 438
If your vehicle has to be stopped in an emergency .............. 438
If the vehicle is submerged or water on the road is rising
......................................... 439
7-2. Steps to take in an emergency If your vehicle needs to be towed......................................... 441
If you think something is wrong ......................................... 443
If a warning light turns on or a warning buzzer sounds .... 445
If a warning message is dis- played .............................. 456
If you have a flat tire ........... 461
If the hybrid system will not start ......................................... 474
If you lose your keys .......... 475
If the fuel filler door cannot be opened ............................. 476
If the electronic key does not operate properly ............... 477If the 12-volt battery is dis-
charged ............................ 479
If your vehicle overheats .... 484
If the vehicle becomes stuck ......................................... 488
8-1. Specifications Maintenance data (fuel, oil level, etc.) .................................. 490
Fuel information ................. 498
Tire information .................. 500
8-2. Customization Customizable features ....... 510
8-3. Initialization Items to initialize ................ 523
9-1. For owners Reporting safety defects for U.S. owners ............................. 526
Reporting safety defects for Canadian owners ............. 526
Seat belt instructions for Cana- dian owners (in French) ... 527
SRS airbag instructions for Canadian owners (in French)
......................................... 528
Headlight aim instructions for Canadian owners (in French)......................................... 53
5
What to

do if... (Troubleshooting)
......................................... 538
Alphabetical Index.............. 541
7When trouble arises
8Vehicle specifications
9For owners
Index

16Pictorial index
When the warning messages are displayed ........................P. 4 5 6
Turn signal lever.............................................. ................... P.216
Headlight switch ............................................... ................. P.223
Headlights/side marker lights/pa rking lights/tail lights/license plate
lights/daytime running lights .................................. ............... P.223
Front fog lights ............................................... ...................... P.229
Windshield wiper and washer sw itch....................... P.229, 232
Usage.......................................................... ................. P.229, 232
Adding washer fluid .............................................................. P.401
Warning messages ............................................... ............... P.456
Emergency flasher switch ....................................... .......... P.438
Hood lock release lever ........................................ ............. P.394
Tilt and telescopic steering lock release lever ................P. 1 5 9
Adjustment ..................................................... ...................... P.159
Air conditioning system ............................. ....................... P.328
Usage................................................................................... P.328
Rear window defogger ........................................... .............. P.330
Windshield wiper de-icer
*1................................................... P.330
Audio system
*2
Fuel filler door opener swi tch ........................................... P.234
*1: If equipped
*2: Refer to “MULTIMEDIA OWNER’S MANUAL”.

731-4. Hybrid system
1
For safety and security
The 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.448)
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

2404-5. Using the driving support systems
■If a warning message is displayed on the multi-information display
A system may be tempor arily unavailable or there may be a malfu nction in
the system.
●In the following situations, perform the actions specified in t he table. When
the normal operating conditions are detected, the message will disappear
and the system will be come operational.
If the message does not disapp ear, contact your Toyota dealer.
●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.
SituationActions
When the area around a camera is
covered with dirt, moisture (fogged
up, covered with condensation, ice,
etc.), or other foreign matterUsing the wiper and A/C function,
remove the dirt and other attached
matter ( P.330).
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.

2864-5. Using the driving support systems
sounds.
• It might be difficult to hear the buzzer due to the volume of the
audio system or air flow noise of
the air conditioning system.
• It may be difficult to hear the
buzzer if buzzers for other sys-
tems are sounding.
■Objects which the system may
not be properly detected
The shape of the object may pre-
vent the sensor from detecting it.
Pay particular attention to the follow-
ing objects:
●Wires, fences, ropes, etc.
●Cotton, snow and other materials
that absorb sound waves
●Sharply-angled objects
●Low objects
●Tall objects with upper sections
projecting outwards in the direc-
tion of your vehicle
People may not be detected if they
are wearing certain types of cloth-
ing.
■Situations in which the system
may not operate properly
Certain vehicle conditions and the
surrounding environment may affect
the ability of a sensor to correctly
detect objects. Particular instances
where this may occur are listed
below.
●There is dirt, snow, water drops or
ice on a sensor. (Cleaning the
sensors will resolve this problem.)
●A sensor is frozen. (Thawing the
area will resolve this problem.)
In especially cold weather, if a
sensor is frozen the sensor dis-
play may be displayed abnormally,
or objects, such as a wall, may not
be detected.
●When a sensor or the area around
a sensor is extremely hot or cold.
●On an extremely bumpy road, on
an incline, on gravel, or on grass.
●When vehicle horns, vehicle
detectors, motorcycle engines, air
brakes of large vehicles, the clear-
ance sonar of ot her vehicles or
other devices which produce ultra-
sonic waves are near the vehicle.
●A sensor is coated with a sheet of
spray or heavy rain.
●If objects draw too close to the
sensor.
●When a pedestrian is wearing
clothing that does not reflect ultra-
sonic waves (ex. skirts with gath-
ers or frills).
●When objects that are not perpen-
dicular to the ground, not perpen-
dicular to the vehicle traveling
direction, uneven, or waving are in
the detection range.
●Strong wind is blowing.
●When driving in inclement weather
such as fog, snow or a sandstorm.
●When an object that cannot be
detected is between the vehicle
and a detected object.
●If an object such as a vehicle,
motorcycle, bicycle or pedestrian
cuts in front of the vehicle or runs
out from the side of the vehicle.
●If the orientation of a sensor has
been changed due to a collision or
other impact.
●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 front of the v ehicle is raised

2964-5. Using the driving support systems
specified are installed
●If the front of the vehicle is raised
or lowered due to the carried load
●When turning while backing up
●When a vehicle turns into the
detection area
■Situations in which the system
may operate even if there is no
possibility of a collision
Instances of the RCTA function
unnecessary detec ting a vehicle
and/or object may increase in the
following situations:
●When the parking space faces a
street and vehicles are being
driven on the street
●When the distanc e 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 equipment that may
obstruct a sensor is installed, such
as a towing eyelet, bumper pro-
tector (an additional trim strip,
etc.), bicycle car rier, or snow plow
●When a vehicle passes by the
side of your vehicle
●When a detected vehicle turns
while approaching the vehicle
●When there are spinning objects
near your vehicle such as the fan
of an air conditioning unit
●When water is splashed or
sprayed toward the rear bumper,
such as from a sprinkler
●Moving objects (f lags, exhaust
fumes, large rain droplets or
snowflakes, rain water on the road
surface, etc.)
●When the distance between your
vehicle and a guardrail, wall, etc.,
that enters the detection area is
short
●Gratings and gutters

3094-5. Using the driving support systems
4
Driving
many curves.
When Sport mode is selected,
Sport mode indicator comes on.
3Eco 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 12.3-inch audio sys-
tem screen: Turn eco air condi-
tioning mode off ( P.333)
●Adjust the fan speed ( P.329)
●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 mod-
els)
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