2023 TOYOTA HIGHLANDER tow

3956-3. Do-it-yourself maintenance
6
Maintenance and care
driving on snow-covered or icy
roads. For driving on snow-covered
roads or icy roads, the use of snow
tires is recommended. When install-
ing snow tires, be sure to replace all
four tires.
●All season tires
All season tires are designed to pro-
vide better traction in snow and to
be adequate for driving in most win-
ter conditions a s well as for use
year-round. All season tires, how-
ever, do not have adequate traction
performance compared with snow
tires in heavy or loose snow. Also,
all season tires fall short in accelera-
tion and handling performance com-
pared with summer tires in highway
driving.
●Snow tires
For driving on snow-covered roads
or icy roads, we recommend using
snow tires. If you need snow tires,
select tires of the same size, con-
struction and load capacity as the
originally installed tires. Since your
vehicle has radial tires as original
equipment, make sure your snow
tires also have radial construction.
Do not install stud ded tires without
first checking local regulations for
possible restrictions. Snow tires
should be installed on all wheels.
(  P.314)
■If the tread on snow tires wears
down below 0.16 in. (4 mm)
The effectiveness of the tires as
snow tires is lost.
WARNING
■When inspecting or replacing
tires
Observe the following precautions
to prevent accidents.
Failure to do so may cause dam-
age to parts of the drive train as
well as dangerous handling char-
acteristics, which may lead to an
accident resulting in death or seri-
ous injury.
●Do not mix tires of different
makes, models or tread pat-
terns.
Also, do not mix tires of remark-
ably different treadwear.
●Do not use tire sizes other than
those recommended by Toyota.
●Do not mix differently con-
structed tires (radial, bias-belted
or bias-ply tires).
●Do not mix summer, all season
and snow tires.
●Do not use tires that have been
used on another vehicle.
Do not use tires if you do not
know how they were used previ-
ously.
●Vehicles with a compact spare
tire: Do not tow if your vehicle
has a compact spare tire
installed.
NOTICE
■Driving on rough roads
Take particular care when driving
on roads with loose surfaces or
potholes.
These conditions may cause
losses in tire inflation pressure,
reducing the cushioning ability of
the tires. In addition, driving on
rough roads may cause damage
to the tires themselves, as well as
the vehicle’s wheels and body.

3986-3. Do-it-yourself maintenance
the vehicle, particularly around the
wheels or wheel housings.
• If the tire inflation pressure is
extremely higher than the speci-
fied level.
• If the spare tire is in a location
subject to poor radio wave signal
reception.
*
• If wheel without the tire pressure warning valve and transmitter is
used.
• If the ID code on the tire pressure warning valves and transmitters is
not registered in the tire pressure
warning computer.
*: Vehicles with full-size spare tire
only
●Performance may be affected in
the following situations.
• Near a TV tower, electric power plant, gas station, radio station,
large display, airpo rt or other facil-
ity that generates strong radio
waves or electrical noise
• When carrying a portable radio,
cellular phone, cordless phone or
other wireless communication
device
●If tire position information is not
correctly displayed due to the
radio wave conditions, the display
may be corrected by driving and
changing the radio wave condi-
tions.
●When the vehicle is parked, the
time taken for the warning to start
or go off could be extended.
●When tire inflation pressure
declines rapidly for example when
a tire has burst, the warning may
not function.
■Warning performance of the tire
pressure warning system
The warning of the tire pressure
warning system will change in
accordance with th e conditions
under which it was initialized. For
this reason, the system may give a
warning even if the tire pressure
does not reach a low enough level, or if the pressure is higher than the
pressure that was
adjusted to when
the system was initialized.
When replacing tires or wheels,
tire pressure warning valves and
transmitters must also be
installed.
When new tire pressure warning
valves and transmitters are
installed, new ID codes must be
registered in the tire pressure
warning computer and the tire
pressure warning system must
be initialized. Have tire pressure
warning valves and transmitter
ID codes registered by your Toy-
ota dealer. ( P.401)
■Replacing tires and wheels
If the ID code of the tire pressure
warning valve and tr ansmitter is not
registered, the tire pressure warning
system will not work properly. After
driving for about 20 minutes, the tire
pressure warning light blinks for 1
minute and stays on to indicate a
system malfunction.
Installing tire pressure
warning valves and trans-
mitters

4116-3. Do-it-yourself maintenance
6
Maintenance and care
minal facing up.
WARNING
■Battery precautions
Observe the following precau-
tions. Failure to do so may result
in death or serious injury.
●Do not swallow the battery.
Doing so may cause chemical
burns.
●A coin battery o r button battery
is used in the electronic key. If a
battery is swallowed, it may
cause severe chemical burns in
as little as 2 hours and may
result in death or serious injury.
●Keep away new and removed
batteries from children.
●If the cover cannot be firmly
closed, stop using the electronic
key and stow the key in the
place where children cannot
reach, and then contact your
Toyota dealer.
●If you accidentally swallow a
battery or put a b attery into a
part of your body, get emer-
gency medical attention imme-
diately.
■To prevent battery explosion
or leakage of flammable liq-
uid or gas
●Replace the battery with a new
battery of the same type. If a
wrong type of battery is used, it
may explode.
●Do not expose batteries to
extremely low pr essure due to
high altitude or extremely high
temperatures.
●Do not burn, bre ak or cut a bat-
tery.
NOTICE
■For normal operation after
replacing the battery
Observe the following precautions
to prevent accidents:
●Always work with dry hands.
Moisture may cause the battery
to rust.
●Do not touch or move any other
component inside the remote
control.
●Do not bend either of the battery
terminals.

4186-3. Do-it-yourself maintenance
vehicle.
3Disconnect the wire harness.
4 Turn the bulb base counter-
clockwise and remove it.
5 Remove the light bulb. 6
Install a new light bulb, and
then install the bulb base to
the light unit by inserting it
and turning it clockwise.
After installing the bulb base, wig-
gle it lightly to make sure it is
securely installed and turn on the
turn signal lights to visually check
that there is no light leaking from
between the bulb base and light
unit.
7Install the light unit.
Align the 2 guides and push the
light unit toward the front of the
vehicle to install it.

423
7
7
When trouble arises
When trouble arises
.7-1. Essential informationEmergency flashers .... 424
If your vehicle has to be stopped in an emergency.................................. 424
If the vehicle is submerged or water on the road is ris-
ing ............................. 425
7-2. Steps to take in an emer- gency
If your vehicle needs to be towed......................... 427
If you think something is wrong ........................ 429
Fuel pump shut off system .................................. 430
If a warning light turns on or a warning buzzer sounds.................................. 431
If a warning message is dis- played........................ 442
If you have a flat tire.... 446
If the engine will not start .................................. 460
If you lose your keys ... 461
If the fuel filler door cannot be opened ................. 462
If the electronic key does not operate properly .. 463
If the vehicle battery is dis- charged ..................... 465
If your vehicle overheats .................................. 469If the vehicle becomes stuck
.................................. 471

4277-2. Steps to take in an emergency
7
When trouble arises
7-2.Steps to take in an emergency
From the front (2WD models)
Release the parking brake.
Turn automatic mode off. ( P.206)
From the front (AWD models)
Use a towing dolly under the
rear wheels.
From the rear
Use a towing dolly under the
front wheels.
If your vehicle needs
to be towed
If towing is necessary, we
recommend having your
vehicle towed by your Toy-
ota dealer or commercial
towing service, using a
wheel-lift type truck or flat-
bed truck.
Use a safety chain system
for all towing, and abide by
all state/provincial and local
laws.
Towing with a wheel-lift
type truck
WARNING
Observe the following precau-
tions.
Failure to do so may result in
death or serious injury.

4287-2. Steps to take in an emergency
When using a flat-bed truck to
transport the vehicle, use tire
strapping belts. Refer to the
owner's manual of the flat-bed
WARNING
■When towing the vehicle
2WD models
Be sure to transport the vehicle
with the front wh eels raised or
with all four wheels raised off the
ground. If the vehicle is towed
with the front wh eels contacting
the ground, the drivetrain and
related parts may be damaged.
AWD models
Be sure to transport the vehicle
with all four wheels raised off the
ground. If the vehicle is towed
with the tires contacting the
ground, the drivetrain or related
parts may be damaged, the vehi-
cle may fly off the truck.
NOTICE
■To prevent damage to the
vehicle when towing using a
wheel-lift type truck
When raising the vehicle, ensure
adequate ground clearance for
towing at the opposite end of the
raised vehicle. Without adequate
clearance, the vehicle could be
damaged while being towed.
■Towing with a sling-type truck
Do not tow with a sling-type truck
to prevent body damage.
2WD models
AWD models
■When towing a vehicle
equipped with a Stop & Start
system (if equipped)
If it is necessary to tow the vehicle
with all 4 wheels on the ground,
perform the following procedure
before towing the vehicle, in order
to protect the system.
Turn the engine switch off and
then start the engine or turn the
engine switch to ON.
Using a flatbed truck

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