2023 TOYOTA HIGHLANDER HYBRID air condition

4196-3. Do-it-yourself maintenance
6
Maintenance and care
claws ( ), and remove the
filter cover.
5 Remove the filter case.
6 Remove the air conditioning
filter from the filter case and
replace it with a new one.
The “ UP” marks shown on the
filter and the filter case should be
pointing up.
■Checking interval
Inspect and replace the air condi-
tioning filter according to the mainte-
nance schedule. In dusty areas or
areas with heavy traffic flow, early replacement may be required. (For
scheduled maintenance information,
please refer to the “Owner’s Manual
Supplement” or “Scheduled Mainte-
nance Guide”.)
■If air flow from the vents
decreases dramatically
The filter may be clogged. Check
the filter and rep lace if necessary.
NOTICE
■When using the air condition-
ing system
Make sure that a filter is always
installed.
Using the air conditioning system
without a filter may cause damage
to the system.

4387-1. Essential information
7-1.Essential information
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch
once again.
■Emergency flashers
●If the emergency flashers are
used for a long time while the
hybrid system is not operating
(while the “READY” indicator is
not illuminated), the 12-volt bat-
tery may discharge.
●If any of the SRS airbags deploy
(inflate) or in the event of a strong
rear impact, the emergency flash-
ers will turn on automatically.
The emergency flashers will turn
off automatically after operating
for approximately 20 minutes. To
manually turn t he emergency
flashers off, press the switch
twice.
(The emergency flashers may not
turn on automatically depending
on the force of the impact and
conditions of the collision.)
1 Steadily step on the brake
pedal with both feet and
firmly depress it.
Do not pump the brake pedal
repeatedly as this will increase the
effort required to slow the vehicle.
2Shift the shift lever to N.
If the shift lever is shifted to N
3 After slowing down, stop the
vehicle in a safe place by the
road.
4 Stop the hybrid system.
If the shift lever cannot be
shifted to N
3 Keep depressing the brake
pedal with both feet to reduce
vehicle speed as much as
possible.
4 To stop the hybrid system,
press and hold the power
switch for 2 consecutive sec-
onds or more, or press it
Emergency flashers
The emergency flashers are
used to warn other drivers
when the vehicle has to be
stopped on the road due to
a breakdown, etc.
Operating instructions
If your vehicle has to
be stopped in an emer-
gency
Only in an emergency, such
as if it becomes impossible
to stop the vehicle in the
normal way, stop the vehicle
using the following proce-
dure:
Stopping the vehicle

4437-2. Steps to take in an emergency
7
When trouble arises
When using a flat-bed truck to
transport the vehicle, use tire
strapping belts. Refer to the
owner's manual of the flat-bed
truck for the tire strapping
method.
In order to suppress vehicle
movement during transporta-
tion, set the parking brake and
turn the power 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 hybrid system
 Engine missing, stumbling or
running roughly
 Appreciable loss of power
 Vehicle pulls heavily to one
NOTICE
■Towing with a sling-type truck
Do not tow with a sling-type truck
to prevent body damage.
2WD models
AWD models
Using a flatbed truck
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

4547-2. Steps to take in an emergency
light will not turn off even though the
flat tire has been replaced with the
spare tire. Replace the spare tire
with the repaired tire and adjust the
tire inflation pressure. The tire pres-
sure warning light will go off after a
few minutes.
■Conditions that the tire pres-
sure warning system may not
function properly
 P. 4 0 8
WARNING
■If both the ABS and the brake
system warning lights remain
on
Stop your vehicle in a safe place
immediately and contact your Toy-
ota dealer.
The vehicle will become
extremely unstable during brak-
ing, and the ABS system may fail,
which could cause an accident
resulting in death or serious injury.
■When the electric power
steering system warning light
comes on
When the light comes on yellow,
the assist to the power steering is
restricted. When the light comes
on red, the assist to the power
steering is lost and handling oper-
ations of the steering wheel
become extremely heavy.
When steering wheel operations
are heavier than usual, grip the
steering wheel firmly and operate
it using more force than usual.
■If the tire pressure warning
light comes on
Be sure to observe the following
precautions.
Failure to do so could cause a
loss of vehicle control and result
in death or serious injury.
●Stop your vehicle in a safe place
as soon as possible. Adjust the
tire inflation pressure immedi-
ately.
●If the tire pressure warning light
comes on even after tire infla-
tion pressure adjustment, it is
probable that you have a flat
tire. Check the tires. If a tire is
flat, change it with the spare tire
and have the flat tire repaired by
the nearest Toyota dealer.
●Avoid abrupt maneuvering and
braking.
If the vehicle tires deteriorate,
you could lose control of the
steering wheel or the brakes.
■If a blowout or sudden air
leakage should occur
The tire pressure warning system
may not activate immediately.
■Maintenance of the tires
Each tire, includi ng the spare (if
provided), should be checked
monthly when cold and inflated to
the inflation pressure recom-
mended by the vehicle manufac-
turer on the vehicle placard or tire
inflation pressure label (tire and
load information label). (If your
vehicle has tires of a different size
than the size indicated on the
vehicle placard or tire inflation
pressure label [tire and load infor-
mation label], you should deter-
mine the proper tire inflation
pressure for those tires.)

4857-2. Steps to take in an emergency
7
When trouble arises
the steam subsides.
If you do not see steam:
Carefully lift the hood.
3 After the hybrid system has
cooled down sufficiently,
inspect the hoses and radia-
tor core (radiator) for any
leaks.
Radiator
Cooling fan
If a large amount of coolant leaks,
immediately cont act 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.
6Start the hybrid system and
turn the air conditioning sys-
tem on to check that the radi-
ator cooling 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 hybrid system
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 hybrid system and contact

5048-1. 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
hybrid 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

5208-2. Customization
■Intuitive parking assist* ( P.283)
*: If equipped
■RCTA (Rear Cross Traffic Alert) function ( P.291)
*: Setting is possible only when th ere is Intuitive parking assist.
■PKSB (Parking Support Brake)* ( P.297)
*: If equipped
■Front automatic air conditioning system ( P.328)
Alert timing for pres-
ence of approaching
vehicle (sensitivity)
Intermediate
Early
—O—
Late
Only when vehicle
detected in blind spot
FunctionDefault settingCustomized setting
Intuitive parking assistOnOff—O—
Buzzer volumeLevel 2Level 1—O—Level 3
FunctionDefault settingCustomized setting
RCTA (Rear Cross Traf-
fic Alert) functionOnOff—O—
Buzzer volume*Level 2Level 1—O—Level 3
FunctionDefault settingCustomized setting
PKSB (Parking Support
Brake) functionOnOff—O—
FunctionDefault settingCustomized setting
A/C auto switch opera-
tionOnOffO—O
FunctionDefault settingCustomized setting

541Alphabetical Index
Alphabetical Index
A
A/C ........................................... 328Air conditioning filter ............. 418
Automatic air conditioning sys-tem ..................................... 328
Eco air conditioning mode .... 332
Front seat concentrated airflow mode (S-FLOW) ................. 334
Rear automatic air conditioning system ................................ 337
ABS (Anti-lock Brake System) ............................................... 311Warning light ........................ 447
ACA (Active Cornering Assist) ............................................... 311
Active Cornering Assist (ACA) ............................................... 311
Adaptive Front-lighting System (AFS)...................................... 225
AFS (Adaptive Front-lighting System) ................................. 225
AHB (Automatic High Beam) . 226
Air conditioning filter ............. 418
Air conditioning system ........ 328 Air conditioning filter ............. 418
Automatic air conditioning sys-tem ..................................... 328
Eco air conditioning mode .... 332
Front seat concentrated airflow mode (S-FLOW) ................. 334
Rear automatic air conditioning system ................................ 337
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 .................447
Alarm .........................................78 Warning buzzer ....................445
Anchor brackets ... ..............52, 62
Antennas (smart key system)142
Anti-lock Brake System (ABS) ............................................... 311Warning light.........................447
Approach warning ..................270
Armrest ......... ......................... ..362
Assist grips .............................363
Audio system-linked display101, 111
Automatic air conditioning sys- tem .........................................328Eco air conditioning mode ....332
Automatic headlight leveling system ...................................224
Automatic High Beam ............226
Automatic light control system ...............................................224
Auxiliary boxes ...............349, 354
Average fuel economy .....97, 109
Average vehicle speed ...........101
AWD Control ...........................101
B
Back door ................................131