2021 TOYOTA TUNDRA maintenance

4556-3. Do-it-yourself maintenance
6
Maintenance and care
Check if the fuse is blown.Normal fuse
Blown fuse
Type A and B:
Replace the blown fuse with a new fuse of an appropriate ampera ge rat-
ing. The amperage rating can be found on the fuse box cover.
Type C:
Contact your Toyota dealer.
■ After a fuse is replaced
●If the lights do not turn on even after the fuse has been repla ced, a bulb may
need replacement. ( P. 457)
● If the replaced fuse blows again, have the vehicle inspected by your Toyota
dealer.
■ If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness f rom damage.
4
1
2
Ty p e AType B
Ty p e C

4566-3. Do-it-yourself maintenance
WARNING
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or
injury.
● Never use a fuse of a higher amperage rating than that indicate d, 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 overload determined and repaired b y your
Toyota dealer as soon as possible.

4576-3. Do-it-yourself maintenance
6
Maintenance and care
Light bulbs
Check the wattage of the light bulb to be replaced. ( P. 550)
■Front
You may replace the following bul bs by yourself. The difficulty
level of replacement varies depending on the bulb. If neces-
sary bulb replacement seems difficult to perform, contact your
To y o t a d e a l e r.
For more information about replacing other light bulbs, contact
your Toyota dealer.
Preparing for light bulb replacement
Bulb locations
Headlights (bulb type)
Front turn signal lights/parking lights (bulb type)
Front side marker lights
Fog lights (bulb type) (if equipped)1
2
3
4

4586-3. Do-it-yourself maintenance
■Rear
Stop/tail and rear side marker lights
Back up lights
Rear turn signal lights
License plate lights
High mounted stoplight and cargo lamps1
2
3
4
5

4596-3. Do-it-yourself maintenance
6
Maintenance and care
■Headlights (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
fender liner clip, 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 replac-
ing the left side light bulb.
Open the fender liner and
unplug the connector.
Replacing light bulbs
1
2

4606-3. Do-it-yourself maintenance
Remove the rubber cover.
Release the bulb retaining
spring.
Remove the bulb.
Set the new light bulb.
To install a new bulb, align tabs
of the bulb with the cutouts of
the mounting hole.
3
4
5
6

4616-3. Do-it-yourself maintenance
6
Maintenance and care
Install the bulb retaining
spring.
Install the rubber cover.
When installing the rubber
cover: P. 471
Install the connector.
7
8
9

4626-3. Do-it-yourself maintenance
Reinstall the fender liner and
install the screws and clip.10