2023 TOYOTA HIGHLANDER air conditioning

4297-2. Steps to take in an emergency
7
When trouble arises
truck for the tire strapping
method.
In order to suppress vehicle
movement during transporta-
tion, set the parking brake and
turn the engine switch off.
Fluid leaks under the vehicle
(Water dripping from the air
conditioning after use is nor-
mal.)
 Flat-looking tires or uneven
tire wear
 Engine coolant temperature
gauge needle continually
points higher than normal
 Changes in exhaust sound
 Excessive tire squeal when
cornering
 Strange noises related to the
suspension system
 Pinging or other noises
related to the engine
 Engine missing, stumbling or
running roughly
 Appreciable loss of power
 Vehicle pulls heavily to one
NOTICE
■To prevent damage to the
vehicle during emergency
towing
Do not secure cables or chains to
the suspension components.
If you think something
is wrong
If you notice any of the fol-
lowing symptoms, your
vehicle probably needs
adjustment or repair. Con-
tact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

4707-2. Steps to take in an emergency
hoses and radiator core (radi-
ator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
4 The coolant level is satisfac-
tory if it is between the
“FULL” and “LOW” lines on
the reservoir.
Reservoir
“FULL” line
“LOW” line
Radiator cap
5 Add coolant if necessary.
Water can be used in an emer- gency if coolant is unavailable.
6
Start the engine and turn the
air conditioning system on to
check that the radiator cool-
ing fan operates and to check
for coolant leaks from the
radiator or hoses.
The fan operates when the air con-
ditioning system is turned on imme-
diately after a cold start. Confirm
that the fan is operating by check-
ing the fan sound and air flow. If it is
difficult to check these, turn the air
conditioning system on and off
repeatedly. (The fan may not oper-
ate in freezing temperatures.)
7If the fan is not operating:
Stop the engine immediately
and contact your Toyota
dealer.
If the fan is operating:
Have the vehicle inspected at
the nearest Toyota dealer.
8 Check if “Engine Coolant
Temp High Stop in a Safe
Place See Owner's Manual”
is shown on the multi-infor-
mation display.
If the message does not disappear:
Stop the engine and contact your
Toyota dealer.
If the message is not displayed:
Have the vehicle inspected at the
nearest Toyota dealer.

4888-1. Specifications
Grade C corresponds to a level of
performance which all passenger
car tires must meet under the Fed-
eral Motor Vehicle Safety Standard
No. 109.
Grades B and A represent higher
levels of performance on the labo-
ratory test wheel than the minimum
required by law. Warning: The temperature grades
of a tire assume tha
t it is properly
inflated and not overloaded.
Excessive speed, underinflation, or
excessive loading, either sepa-
rately or in combination, can cause
heat buildup and possible tire fail-
ure.
Glossary of tire terminology
Tire related termMeaning
Cold tire infl ation pressure
Tire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km
under that condition
Maximum inflation pressure
The maximum cold inf lated pressure to
which a tire may be inflated, shown on the
sidewall of the tire
Recommended inflation pres-
sureCold tire inflation pressure recommended
by a manufacturer
Accessory weight
The combined weight (in excess of those
standard items which may be replaced) of
automatic transmission, power steering,
power brakes, power windows, power
seats, radio and heater, to the extent that
these items are available as fac-
tory-installed equipment (whether installed
or not)
Curb weight
The weight of a motor vehicle with stan-
dard equipment, including the maximum
capacity of fuel, oil and coolant, and if so
equipped, air conditioning and additional
weight optional engine

5058-2. Customization
8
Vehicle specifications
*: If equipped
■Front automatic air conditioning system (P.322)
■Illumination ( P.337)
FunctionDefault settingCustomized setting
A/C auto switch opera-
tionOnOffO—O
FunctionDefault settingCustomized setting
Time elapsed before the
interior lights turn off15 seconds
Off
O—O7.5 seconds
30 seconds
Operation after the
engine switch is turned
off
OnOff——O
Operation when the
doors are unlockedOnOff——O
Operation when you
approach the vehicle
with the electronic key
on your person
OnOff——O
Instrument panel orna-
ment light
* and door trim
ornament lights
*
OnOff——O
Time elapsed before the
outer foot lights
* turn off15 seconds
Off
O—O7.5 seconds
30 seconds

525Alphabetical Index
Alphabetical Index
A
A/C ........................................... 322Air conditioning filter ............. 408
Automatic air conditioning sys-tem ..................................... 322
Eco air conditioning mode .... 327
Front seat concentrated airflow mode (S-FLOW) ................. 328
Rear automatic air conditioning system ................................ 331
ABS (Anti-lock Brake System) ............................................... 307Warning light ........................ 433
ACA (Active Cornering Assist) ............................................... 307
Active Cornering Assist (ACA) ............................................... 307
Adaptive Front-lighting System (AFS)...................................... 212
AFS (Adaptive Front-lighting System) ................................. 212
AHB (Automatic High Beam) . 213
Air conditioning filter ............. 408
Air conditioning system ........ 322 Air conditioning filter ............. 408
Automatic air conditioning sys-tem ..................................... 322
Eco air conditioning mode .... 327
Front seat concentrated airflow mode (S-FLOW) ................. 328
Rear automatic air conditioning system ................................ 331
Airbags Airbag operating conditions.... 36
Airbag precautions for your child............................................. 39
Correct driving posture ........... 25
Curtain shield airbag operating conditions ............................. 37
Curtain shield airbag precautions ............................................. 39 Front passenger occupant clas-
sification system ...................43
General airbag precautions ....39
Locations of airbags ...............34
Modification and disposal of air- bags......................................42
Side airbag operating conditions .............................................37
Side airbag precautions..........39
Side and curtain shield airbags operating conditions .............37
Side and curtain shield airbags precautions ...........................39
SRS airbags ...........................34
SRS warning light .................432
Alarm .........................................70 Warning buzzer ....................431
Anchor brackets ... ..............52, 62
Antennas (smart key system)131
Anti-lock Brake System (ABS) ...............................................307Warning light.........................433
Approach warning ..................256
Armrest ......... ......................... ..356
Assist grips .............................357
Audio system-linked display .91, 100
Automatic air conditioning sys- tem .........................................322Eco air conditioning mode ....327
Automatic headlight leveling system ................................... 211
Automatic High Beam ............213
Automatic light control system ............................................... 211
Automatic transmission.........201 If th e s hif t le ver ca n no t b e s hif te d from P .................................202
M mode ................................203
Auxiliary boxes ...............343, 348
Average fuel economy .......88, 99
Average vehicle speed .............91

529Alphabetical Index
FluidAutomatic transmission ........ 478
Brake .................................... 479
Washer ................................. 392
Fog lights Switch................................... 216
Footwell light .................... ...... 337
Front passenger occupant clas- sification system .................... 43
Front seats Adjustment ........................... 136
Cleaning ............................... 373
Correct driving posture ........... 25
Driving position memory....... 142
Head restraints ..................... 145
Memory recall function ......... 144
Seat heaters ......................... 335
Seat position memory .......... 142
Seat ventilators .................... 335
Front side marker light Light switch .......................... 210
Front side marker lights Replacing light bulbs ............ 415
Front turn signal lights Replacing light bulbs ............ 415
Turn signal lever ................... 204
Fuel Capacity ............................... 475
Fuel gauge ....................... 79, 82
Fuel pump shut off system ... 430
Information ........................... 482
Refueling .............................. 221
Type ..................................... 475
Warning light ........................ 434
Fuel consumption Average fuel economy ..... 88, 99
Current fuel consumption . 88, 99
Fuel economy ......... ............ 88, 99
Fuel filler door If the fuel filler door cannot be opened ............................... 462
Refueling .............................. 221 Fuel gauge...........................79, 82
Fuel pump shut off system ....430
Fuses .......................................412
G
Garage door opene
r ...............360
Gauges ................................79, 82
Glove box ................................341
Glove box light........................341
H
Head restraints .......................145
Headlight aim ..........................414
Headlights Adaptive Front-lighting System (AFS) ..................................212
Automatic High Beam system ...........................................213
Light switch...........................210
Replacing light bulbs ............415
Head-up display ......................103 Driving information display area...........................................103
Eco Driving Indicator ............106
Navigation system-linked display ...........................................106
Settings ................................104
Heated steering wheel............335
Heaters Automatic air conditioning sys-tem .....................................322
Heated steering wheel..........335
Outside rear view mirrors .....324
Rear automatic air conditioning system ................................331
Seat heaters ....... ..................335
High mounted stoplight Replacing light bulbs ............415
Hill-start assist control...........307
Hood Open.....................................384

533Alphabetical Index
R
Radar cruise control (dynamic radar cruise control with
full-speed range) .................. 249
Radiator ................................... 390
RCTA Function ............................... 283
Warning message ................ 284
RCTA function......................... 284
Rear automatic air conditioning system ................................... 331
Rear Cross Traffic Alert (RCTA) ............................................... 283
Rear door sunshades ............ 360
Rear seats ............................... 137 Head restraints ..................... 145
Seat heaters ......................... 335
Rear side marker lights Light switch .......................... 210
Replacing light bulbs ............ 415
Rear turn signal lights Replacing light bulbs ............ 415
Turn signal lever ................... 204
Rear view mirror Digital Rearview Mirror ......... 150
Inside rear view mirror.......... 149
Outside rear view mirrors ..... 160
Rear window defogger ........... 324
Refueling Capacity ............................... 475
Fuel types............................. 475
If the fuel filler door cannot be opened ............................... 462
Opening the fuel tank cap .... 221
Replacing Electronic key battery ........... 410
Fuses ................................... 412
Light bulbs ............................ 415
Tires ..................................... 446
Reporting safety defects for U.S. owners................................... 510 Resetting the message indicat-
ing maintenance is required 377
Road Sign Assist ....................261
Rock & Dirt mode ...................301
RSA (Road Sign Assist) .........261
S
Safety Connect .........................65
Seat belt reminder light..434, 435
Seat belts...................................27 Automatic Locking Retractor ..28
Child restraint sys tem installation
.............................................52
Cleaning and maintaining the seat belt ..............................373
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 .434, 435
Seat belt extender ..................28
Seat belt pretensioners ..........32
SRS warning light .................432
Seat heaters ............................335
Seat position memory ............142
Seat ventilators .. .....................335
Seating capacity .....................184
Seats Adjustment ...........................136
Adjustment precautions ........136
Child seats/child restraint system installation ............................50
Cleaning ...............................373
Driving position memory .......142
Head restraints .....................145
Properly sitting in the seat ......25
Seat heaters ....... ..................335
Seat position memory...........142
Seat ventilators.....................335