Toyota Tundra Hybrid (2023 year). Manual in english

483

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

ing it.

Install the air intake vent
cover.

Insert the tab of the cover as
shown in the illustration.

Push the cover to engage the
2 claws.



If “Maintenance Required for
Traction Battery Cooling Parts
See Owner’s Manual” was
displayed on the multi-infor-
mation display

Start the hybrid system and
check that the warning mes-
sage is no longer displayed.

It may take approximately 20 min-

utes after the hybrid system is

started until the warning message

disappears.

If the warning message does not

disappear after some time, have

the vehicle inspected by your Toy-

ota dealer.

■

If the dust or sand on the filter

cannot be removed

It is recommended to use a vacuum

cleaner with plastic brushes.

WARNING

■

When cleaning the air intake

vent

●

Do not use water or other liq-

uids to clean the air intake vent.

If water is applied to the hybrid

battery (traction battery) or

other components, a malfunc-

tion or fire may occur.

●

Before cleaning the air intake

vent, make sure to turn the

power switch off to stop the

hybrid system.

●

Do not put a hand or leg in the

air intake vent. If it is caught in a

cooling fan, or if it touches a

high voltage part that results in

an electric shock, death or seri-

ous injuries may result.

●

Do not touch the service plug

located near the air intake vent.

(



P.77)

NOTICE

■

When cleaning the air intake

vent

Do not use an air blow gun, etc.

Dust may be blown out, possibly

causing a malfunction or output

restriction of the hybrid battery

(traction battery).

484

6-3. Do-it-yourself maintenance

■

If the electronic key battery is

depleted

The following symptoms may occur:

●

The smart key system and wire-

less remote control will not func-

tion properly.

●

The operational range will be

reduced.



Flathead screwdriver



Small flathead screwdriver



Lithium battery CR2450

■

Use a CR2450 lithium battery

●

Batteries can be purchased at

your Toyota dealer, local electrical

appliance shops or camera stores.

●

Replace only with the same or

equivalent type recommended by

the manufacturer.

●

Dispose of used batteries accord-

ing to local laws.

NOTICE

■

To prevent damage to the

vehicle

Observe the following precau-

tions:

●

Do not allow water or foreign

matter to enter the air intake

vent.

●

Make sure to reinstall the filter

and cover to their original posi-

tions after cleaning.

●

Do not install anything to the air

intake vent other than the exclu-

sive filter for this vehicle or use

the vehicle without the filter

installed.

■

To prevent damage to the fil-

ter

Observe the following precau-

tions.

If the filter is damaged, have it

replaced with a new filter by your

Toyota dealer.

●

Do not use an air blow gun, etc.

●

Do not press hard a vacuum

cleaner, etc. against the filter.

●

Do not use a hard brush, such

as a metal brush.

●

Do not break the fold of the fil-

ter.

Electronic key battery

Replace the battery with a
new one if it is depleted.
As the key may be damaged
if the following procedure is
not performed properly, it is
recommended that key bat-
tery replacement be per-
formed by your Toyota
dealer.

Items to prepare

485

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

Take out the mechanical key.

Remove the cover.

To prevent damage to the key,

cover the tip of the flathead screw-

driver with a tape.

Remove the depleted battery.

Insert a new battery with the “+” ter-

minal facing up.

Replacing the battery

WARNING

■

Removed battery and other

parts

These parts are small and if swal-

lowed by a child, they can cause

choking. Keep away from chil-

dren. Failure to do so could result

in death or serious injury.

■

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 or 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 battery 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.

486

6-3. Do-it-yourself maintenance

Turn the power switch off.

Open the fuse box cover.



Engine compartment: type A
fuse box

Push the tabs in and lift the lid off.



Engine compartment: type B
fuse box

Push the tabs in and lift the lid off.

WARNING

●

Do not expose batteries to

extremely low pressure due to

high altitude or extremely high

temperatures.

●

Do not burn, break or cut a bat-

tery.

NOTICE

■

When replacing the battery

Use a flathead screwdriver of

appropriate size. Applying exces-

sive force may deform or damage

the cover.

■

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.

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

487

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca



Passenger’ side instrument
panel

Remove the cover.

Vehicles with footwell lights:
Remove the footwell lights connec-
tor.

Remove the lid.
Make sure to push the claw when
removing/installing the lid.



Under the right-hand rear seat

Lift the rear seat cushion. (



P.135)

Remove the cover.

Remove the fuse with the
pullout tool.
Only type A fuse can be

488

6-3. Do-it-yourself maintenance

removed using the pullout
tool.

Check if the fuse is blown.

Type A and B:

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 C and D:

Contact your Toyota dealer.



Type A

Normal fuse

Blown fuse



Type B

Normal fuse

Blown fuse



Type C

Normal fuse

Blown fuse



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-

489

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

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.

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



P.548)

Front turn signal/parking
lights (bulb type)

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.

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

490

6-3. Do-it-yourself maintenance

■

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)



Auxiliary lights (if equipped)



Light bar (if equipped)



Arch molding marker lights (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:

●

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.489

■

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.

Replacing light bulb

491

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

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.

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.

493

Whe

n tr

ouble

rises

When trouble arises

7-1. Essential information

Emergency flashers ....

494

If your vehicle has to be

stopped in an emergency

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

494

If the vehicle is submerged

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

495

7-2. Steps to take in an emer-

gency

If your vehicle needs to be

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

497

If you think something is

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

499

If a warning light turns on or

a warning buzzer sounds

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

501

If a warning message is dis-

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

511

If you have a flat tire....

515

If the hybrid system will not

start ...........................

524

If you lose your keys ...

526

If the fuel door cannot be

opened ......................

526

If the electronic key does

not operate properly ..

527

If the vehicle 12-volt battery

is discharged .............

529

If your vehicle overheats

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

535

If the vehicle becomes stuck

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

538

494

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

hybrid system is not operating, the

12-volt 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 hybrid system.



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 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

495

7-1. Essential information

Whe

n tr

ouble

rises

briefly 3 times or more in suc-
cession.

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 hybrid system 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 hybrid sys-

tem.

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.

496

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 and motor stop, and the

vehicle may not be able to get mov-

ing.

■

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.

497

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 hybrid system warning
message is shown on the
multi-information display and
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.

498

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, an acci-
dent may occur due to a change
in direction of the vehicle or elec-
tricity generated by the operation
of the motor may cause a fire to
occur depending on the nature of
the damage or malfunction.



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, or elec-
tricity generated by the operation
of the motor may cause a fire to
occur depending on the nature of
the damage or malfunction.

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 power 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.

Toyota Tundra Hybrid (2023 year). Manual in english - page 30