engine TOYOTA HIGHLANDER 2023 Owners Manual

4126-3. Do-it-yourself maintenance
1Turn the engine switch off.
2 Open the fuse box cover.
Engine compartment: type A
fuse box (if equipped)
Push the tab in and lift the lid off.
Engine compartment: type B
fuse box
Push the tab in and lift the lid off.
Under the driver’s side instru-
ment panel
Remove the lid.
Make sure to push the claw when
removing/installing the lid.
3Remove the fuse.
Only type A fuse can be removed
using the pullout tool.
4Check if the fuse is blown.
Replace the blown fuse with a new
fuse of an appropriate amperage
rating. The amperage rating can be
found on the fuse box lid.
Type A
Checking and replac-
ing fuses
If any of the electrical com-
ponents do not operate, a
fuse may have blown. If this
happens, check and replace
the fuses as necessary.
Checking and replacing
fuses

4216-3. Do-it-yourself maintenance
6
Maintenance and care
3Remove the light bulb.
4 Install a new light bulb.
5 Install the lens.
Hooks
1 Fit the lens into either the right or left hooks.
2 Push the lens into place.
After installation, confirm that the
lens is properly installed by gently
pulling it.
6Install the cover.
WARNING
■To prevent injury
Before performin g any light bulb
replacement procedure, be sure
to turn the engine switch off. Fail-
ure to do so may result in burns
from hot components or a part of
your body may get caught on an
operating component, possibly
causing serious injury.
■Replacing light bulbs
●Turn off the lights. Do not
attempt to replace the bulb
immediately after turning off the
lights.The bulbs become very
hot and may cause burns.

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

4247-1. 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
engine is not operating, the 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 engine.
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 engine, press and
hold the engine switch for 2
consecutive seconds or
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

4257-1. Essential information
7
When trouble arises
more, or press it briefly 3
times or more in succession.
5 Stop the vehicle in a safe
place by the road.
If the door can be opened,
open the door and exit the
vehicle.
 If the door cannot be opened,
open the window using the
power window switch and
ensure an escape route.
 If the window can be opened,
exit the vehicle through the
window.
 If the door and window cannot
be opened due to the rising
water, remain calm, wait until
the water level inside the
vehicle rises to the point that
the water pressure inside of
the vehicle equals the water
pressure outside of the vehi-
cle and then open the door
after waiting for the rising
water to enter the vehicle, and
exit the vehicle. When the
WARNING
■If the engine has to be turned
off while driving
Power assist for the brakes and
steering wheel will be lost, making
the brake pedal harder to depress
and the steering wheel heavier to
turn. Decelerate as much as pos-
sible before turning off the engine.
If the vehicle is sub-
merged or water on
the road is rising
This vehicle is not designed
to be able to drive on roads
that are deeply flooded with
water. Do not drive on roads
where the roads may be
submerged or the water
may be rising. It is danger-
ous to remain in the vehicle,
if it anticipated that the vehi-
cle will be flooded or set a
drift. Remain calm and fol-
low the following.

4267-1. Essential information
outside water level exceeds
half the height of the door, the
door cannot be opened from
the inside due to water pres-
sure.
■Water level exceeds the floor
When the water level exceeds the
floor and time has passed, the elec-
trical equipment will get damaged,
the power windows will not operate,
the engine stop, and the vehicle
may not be able to get moving.
■Using an emergency escape
hammer*1
Laminated glass*2 is used in the
windshield and the windows on this
vehicle.
Laminated glass cannot be shat-
tered with an emergency hammer
*1.*1: Contact your Toyota dealer or
aftermarket accessory manufac-
turer for further information about
an emergency hammer.
*2: If equipped
■How to distinguish laminated
glass
When looking from the cross-sec-
tional view point, laminated glass is
two sheets of glass pasted together.
Laminated glass
Tempered glass
WARNING
■Caution while driving
Do not drive on roads where the
roads may be submerged or the
water may be rising. Otherwise
the vehicle may be damaged and
cannot move, as well as become
flooded and set a drift, which may
lead to death.

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

4307-2. Steps to take in an emergency
side when braking
 Vehicle pulls heavily to one
side when driving on a level
road
 Loss of brake effectiveness,
spongy feeling, pedal almost
touches the floor
Follow the procedure below to
restart the engine after the sys-
tem is activated.
1Turn the engine switch to
ACC or turn it OFF.
2 Restart the engine.Fuel pump shut off
system
To minimize the risk of fuel
leakage when the engine
stalls or when an airbag
inflates upon collision, the
fuel pump shut off system
stops the supply of fuel to
the engine.
Restarting the engine
NOTICE
■Before starting the engine
Inspect the ground under the
vehicle.
If you find that fuel has leaked
onto the ground, the fuel system
has been damaged and is in need
of repair. Do not restart the
engine.

4317-2. Steps to take in an emergency
7
When trouble arises
■Brake system warning light
■Brake system warning light
■High coolant temperature warning light* (warning buzzer)
*: This light illuminat es on the multi-information display.
If a war ning light tur ns on or a war ning buzzer
sounds
Calmly perform the following actions if any of the warning
lights comes on or flashes. If a light comes on or flashes, but
then goes off, this does not necessarily indicate a malfunction
in the system. However, if this continues to occur, have the
vehicle inspected by your Toyota dealer.
Actions to the warning lights or warning buzzers
Warning lightDetails/Actions
(U.S.A.)
or
(red)
(Canada)
Indicates that:
 The brake fluid level is low; or
 The brake system is malfunctioning
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. Continuing to drive the vehi-
cle may be dangerous.
Warning lightDetails/Actions
(yellow)
Indicates a malfunction in the electric parking brake
 Have the vehicle inspected by your Toyota dealer
immediately.
Warning lightDetails/Actions
Indicates that the engine coolant temperature is too high
Immediately stop the vehicle in a safe place.
Handling method ( P.469)