Toyota Tundra (2023 year). Manual in english

497

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca



Type D

Normal fuse

Blown fuse

■

After a fuse is replaced

●

When installing the lid, make sure

that the tab is installed securely.

●

If the lights do not turn on even

after the fuse has been replaced,

a bulb may need replacement.

●

If the replaced fuse blows again,

have the vehicle inspected by

your Toyota dealer.

■

If there is an overload in a cir-

cuit

The fuses are designed to blow, pro-

tecting the wiring harness from

damage.

■

When replacing light bulbs

Toyota recommends that you use

genuine Toyota products designed

for this vehicle.

Because certain bulbs are con-

nected to circuits designed to pre-

vent overload, non-genuine parts or

parts not designed for this vehicle

may be unusable.

WARNING

■

To prevent system break-

downs and vehicle fire

Observe the following precau-

tions.

Failure to do so may cause dam-

age to the vehicle, and possibly a

fire or injury.

●

Never use a fuse of a higher

amperage rating than that indi-

cated, or use any other object in

place of a fuse.

●

Always use a genuine Toyota

fuse or equivalent.

Never replace a fuse with a

wire, even as a temporary fix.

●

Do not modify the fuses or fuse

boxes.

NOTICE

■

Before replacing fuses

Have the cause of electrical over-

load determined and repaired by

your Toyota dealer as soon as

possible.

498

6-3. Do-it-yourself maintenance

Check the wattage of the light
bulb to be replaced. (



P.554)

Front turn signal/parking
lights (bulb type)

■

Lights that need to be
replaced by your Toyota
dealer



Headlights



Daytime running lights



Front turn signal/parking lights
(LED type)



Front fog lights



Side marker lights



Side turn signal lights



Trailering light (if equipped)



Tail lights



Stop lights



Back-up light



Rear turn signal lights



High mounted stoplight/cargo
lamp



Trailer hitch light (if equipped)



Bed lamp (if equipped)

■

When replacing the light bulbs

Confirm that they are properly

engaged with the bulb base and that

there is no light leakage.

■

LED Lights

The lights other than front turn sig-

nal/parking lights (bulb type) consist

of a number of LEDs. If any of the

LEDs burn out, take your vehicle to

your Toyota dealer to have the light

replaced.

■

Condensation build-up on the

inside of the lens

Temporary condensation build-up

on the inside of the headlight lens

does not indicate a malfunction.

Contact your Toyota dealer for more

information in the following situa-

tions:

Light bulbs

You may replace the follow-
ing bulb by yourself. If nec-
essary bulb replacement
seems difficult to perform,
contact your Toyota dealer.
For more information about
replacing other lights, con-
tact your Toyota dealer.

Preparing for light bulb
replacement

Bulb location

499

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

●

Large drops of water have built up

on the inside of the lens.

●

Water has built up inside the

headlight.

■

When replacing light bulbs



P.497

■

Front turn signal/parking
lights (bulb type)

To allow enough working
space, turn the steering
wheel to the opposite side of
the bulb to be replaced.
Remove the screws, and
remove the fender liner.

Turn the steering wheel to the left

when replacing the right side light

bulb, and turn the steering wheel to

the right when replacing the left

side light bulb.

Open the fender liner and
turn the bulb base counter-
clockwise.

Remove the light bulb.

Install a new light bulb and
turn the bulb base clockwise.

Replacing light bulb

500

6-3. Do-it-yourself maintenance

Reinstall the fender liner and
install the screws.

WARNING

■

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.

●

Do not touch the glass portion

of the light bulb with bare

hands.

When it is unavoidable to hold

the glass portion, use and hold

with a clean dry cloth to avoid

getting moisture and oils on the

bulb. Also, if the bulb is

scratched or dropped, it may

blow out or crack.

●

Fully install light bulbs and any

parts used to secure them. Fail-

ure to do so may result in heat

damage, fire, or water entering

the light unit. This may damage

the lights or cause condensa-

tion to build up on the lens.

■

To prevent damage or fire

Make sure bulbs are fully seated

and locked.

501

Whe

n tr

ouble

rises

When trouble arises

7-1. Essential information

Emergency flashers ....

502

If your vehicle has to be

stopped in an emergency

..................................

502

If the vehicle is submerged

or water on the road is ris-
ing .............................

503

7-2. Steps to take in an emer-

gency

If your vehicle needs to be

towed.........................

505

If you think something is

wrong ........................

508

Fuel pump shut off system

..................................

509

If a warning light turns on or

a warning buzzer sounds

..................................

510

If a warning message is dis-

played........................

520

If you have a flat tire....

523

If the engine will not start

..................................

533

If you lose your keys ...

534

If the electronic key does

not operate properly ..

535

If the vehicle battery is dis-

charged .....................

537

If your vehicle overheats

..................................

541

If the vehicle becomes stuck

..................................

543

502

7-1. Essential information

7-1.Essential information

Press the switch to flash all of
the turn signal lights.

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 running, the battery

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 the 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.)

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.

Shift the shift lever to N.



If the shift lever is shifted to N

After slowing down, stop the
vehicle in a safe place by the
road.

Stop the engine.



If the shift lever cannot be
shifted to N

Keep depressing the brake
pedal with both feet to reduce
vehicle speed as much as
possible.

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

503

7-1. Essential information

Whe

n tr

ouble

rises

more, or press it briefly 3
times or more in succession.

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 can not 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 steering

wheel will be lost, making the

steering wheel heavier to turn.

Decelerate as much as possible

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.

504

7-1. 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

Laminated glass is used in the wind-

shield on this vehicle.
Laminated glass cannot be shat-
tered with an emergency hammer

Tempered glass is used in the win-

dows on this vehicle.

: Contact your Toyota dealer or

aftermarket accessory manufac-
turer for further information about
an emergency hammer.

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.

505

7-2. Steps to take in an emergency

Whe

n tr

ouble

rises

7-2.Steps to take in an emergency

The following may indicate a
problem with your transmission.
Contact your Toyota dealer or
commercial towing service
before towing.



The engine is running but the
vehicle does not move.



The vehicle makes an abnor-
mal sound.



From the front

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.

Situations when it is nec-
essary to contact dealers
before towing

Towing with a wheel-lift
type truck

WARNING

Observe the following precau-

tions.

Failure to do so may result in

death or serious injury.

506

7-2. Steps to take in an emergency

WARNING

■

When towing the vehicle



2WD 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 and related
parts may be damaged or an acci-
dent may occur due to a change
in direction of the vehicle.



4WD 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

●

Do not tow the vehicle from the

rear when the engine switch is

off.

●

When raising the vehicle,

ensure adequate ground clear-

ance for towing at the opposite

end of the raised vehicle. With-

out adequate clearance, the

vehicle could be damaged while

being towed.

507

7-2. Steps to take in an emergency

Whe

n tr

ouble

rises

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 engine switch off.

Your vehicle has not towing
hook. If towing is necessary, we
recommend having your vehicle
towed by your Toyota dealer or

commercial towing service.

NOTICE

■

When towing a vehicle

equipped with a Stop & Start

system

If it is necessary to tow the vehicle

with all four 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.

■

Towing with a sling-type truck

Do not tow with a sling-type truck

to prevent body damage.

Using a flatbed truck

Emergency towing

508

7-2. Steps to take in an emergency



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 (4.2-inch display
type)/Engine coolant tem-
perature gauge needle (full
LCD type) continually points
higher than normal.



Voltmeter continually points
higher or lower than normal.



Engine oil pressure gauge
continually points lower than
normal.



Automatic transmission fluid
temperature warning mes-
sage is displayed



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 misses, stumbling or
running roughly



Appreciable loss of power



Vehicle pulls heavily to one
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

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

509

7-2. Steps to take in an emergency

Whe

n tr

ouble

rises

Follow the procedure below to
restart the engine after the sys-
tem is activated.

Turn the engine switch to
ACC or OFF.

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 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.

510

7-2. Steps to take in an emergency

■

Brake system warning light (warning buzzer)

■

Brake system warning light (warning buzzer)

■

High coolant temperature warning light

: This light illuminates on the multi-information display with a message.

If a warning light turns on or a warning 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 malfunc-
tion 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 light

Details/Actions

(U.S.A.)

(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 light

Details/Actions

(Yellow)

Indicates a malfunction in the parking brake system



Have the vehicle inspected by your Toyota dealer
immediately.

Warning light

Details/Actions

Indicates that the engine is overheating



Immediately stop the vehicle in a safe place.
Handling method (



P.541)

511

7-2. Steps to take in an emergency

Whe

n tr

ouble

rises

■

Charging system warning light

(warning buzzer)

: This light illuminates on the multi-information display with a message.

■

Low engine oil pressure warning light

(warning buzzer)

: This light illuminates on the multi-information display with a message.

■

Malfunction indicator lamp

■

SRS warning light

Warning light

Details/Actions

Indicates a malfunction in the vehicle’s charging system



Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.

Warning light

Details/Actions

Indicates that the engine oil pressure is excessively low



Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.

Warning light

Details/Actions

(U.S.A.)

(Canada)

Indicates a malfunction in:



The electronic engine control system;



The electronic throttle control system; or



The emission control system



Have the vehicle inspected by your Toyota dealer
immediately.

Warning light

Details/Actions

Indicates a malfunction in:



The SRS airbag system;



The front passenger occupant classification system; or



The seat belt pretensioner system



Have the vehicle inspected by your Toyota dealer
immediately.

512

7-2. Steps to take in an emergency

■

ABS warning light

■

Electric power steering system warning light (warning
buzzer)

■

PCS warning light

Warning light

Details/Actions

(U.S.A.)

(Canada)

Indicates a malfunction in:



The ABS; or



The brake assist system



Have the vehicle inspected by your Toyota dealer
immediately.

Warning light

Details/Actions

(Red)

(Yellow)

Indicates a malfunction in the EPS (Electric Power Steer-
ing) system



Have the vehicle inspected by your Toyota dealer
immediately.

Warning light

Details/Actions

(Flashes or illu-

minates)

(If equipped)

When a buzzer sounds simultaneously:
Indicates a malfunction has occurred in the PCS (Pre-Colli-
sion System).



Have the vehicle inspected by your Toyota dealer
immediately.

When a buzzer does not sound:
The PCS (Pre-Collision System) has become temporarily
unavailable, corrective action may be necessary.



Follow the instructions displayed on the multi-infor-
mation display. (



P.233, 520)

If the PCS (Pre-Collision System) or VSC (Vehicle Stability
Control) system is disabled, the PCS warning light will illu-
minate.



P.392

Toyota Tundra (2023 year). Manual in english - page 31