2022 TOYOTA TUNDRA HYBRID fuse

4TABLE OF CONTENTS
Owners Manual_USA_M0C031_en
Rear differential lock system
.................................... 364
Crawl Control ................ 365
Multi-terrain Select ........ 369
Downhill assist control sys- tem .............................. 372
Driving assist systems .. 374
Trailer brake controller .. 380
Trailer Backup Guide .... 383
Active front spoiler ........ 388
4-6. Driving tips Hybrid Electric Vehicle driving tips............................... 390
Off-road precautions ..... 392
Winter driving tips ......... 395
5-1. Using the air conditioning
system and defogger
Automatic air conditioning system ......................... 400
Heated steering wheel/seat heaters/seat ventilators 407
5-2. Using the interior lights Interior lights list ............ 410
5-3. Using the storage features List of storage features . 413
Luggage compartment fea- tures ............................ 417
5-4. Using the other interior fea- tures
Other interior features ... 420
Garage door opener...... 4336-1. Maintenance and care
Cleaning and protecting the vehicle exterior ............ 442
Cleaning and protecting the vehicle interior ............. 445
6-2. Maintenance Maintenance requirements.................................... 448
General maintenance .... 449
Emission inspection and maintenance (I/M) programs.................................... 452
6-3. Do-it-yourself maintenance Do-it-yourself service precau-tions ............................. 454
Hood .............................. 456
Engine compartment ..... 457
12-volt battery................ 463
Tires .............................. 466
Tire inflation pressure .... 476
Wheels .......................... 478
Air conditioning filter ...... 479
Cleaning the hybrid battery (traction battery) air intake
vent and filter ............... 481
Electronic key battery .... 485
Checking and replacing fuses .................................... 487
Light bulbs ..................... 490
5Interior features
6Maintenance and care

4265-4. Using the other interior features
Owners Manual_USA_M0C031_en
Ty p e A
Type B
The power outlet can be used
for 12 V accessories that run on
less than 10 A.
Open the lid.
■The power outlet can be used
when
The power switch is in ACC or ON.
■When stopping the hybrid sys-
tem
Disconnect electrical devices with
charging functions, such as mobile
battery packs. If such devices are
left connected, the hybrid system
may not stop normally.
Please use as a power supply
for electronic devices that use
Coat hooks
WARNING
■Items that must not be hung
on the hook
Do not hang a coat hanger or
other hard or sharp object on the
hook. If the SRS curtain shield air-
bags deploy, these items may
become projectiles that cause
death or serious injury.
Power outlet (12 VDC)
NOTICE
■To avoid damaging the power
outlet
Close the power outlet lid when
the power outlet is not in use.
Foreign objects or liquids that
enter the power outlet may cause
a short circuit.
■To prevent the fuse from
being blown
Do not use an accessory that
uses more than 12 V 10 A.
■To prevent 12-volt battery dis-
charge
Do not use the p ower outlet lon-
ger than necessary when the
hybrid system is off.
Power outlets (120 VAC)
(if equipped)

441
Owners Manual_USA_M0C031_en
6
6
Maintenance and care
Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 442
Cleaning and protecting the vehicle interior ........... 445
6-2. Maintenance Maintenance requirements.................................. 448
General maintenance.. 449
Emission inspection and maintenance (I/M) pro-
grams ........................ 452
6-3. Do-it-yourself mainte- nance
Do-it-yourself service pre- cautions ..................... 454
Hood ........................... 456
Engine compartment ... 457
12-volt battery ............. 463
Tires ............................ 466
Tire inflation pressure.. 476
Wheels ......... ...............478
Air conditioning filter .... 479
Cleaning the hybrid battery (traction battery) air intake
vent and filter............. 481
Electronic key battery.. 485
Checking and replacing fuses.......................... 487
Light bulbs................... 490

4546-3. Do-it-yourself maintenance
Owners Manual_USA_M0C031_en
6-3.Do-it-yourself maintenance
Do-it-yourself ser vice
precautions
If you perform maintenance
by yourself, be sure to fol-
low the correct procedure
as given in these sections.
Maintenance
ItemsParts and tools
12-volt battery
condition
( P.463)
•Grease
•Warm water
• Baking soda
• Distilled water
• Flat-head screw-
driver or
mechanical key
( P. 1 1 0 )
• Conventional wrench (for ter-
minal clamp
bolts)
Brake fluid
level ( P.461)
• FMVSS No.116
DOT 3 or SAE
J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding
brake fluid)
Engine/inter-
cooler/power
control unit
coolant level
( P.460)
• “Toyota Super
Long Life Cool-
ant” or a similar
high quality eth-
ylene glycol-
based non-sili-
cate, nonamine,
non-nitrite and
non-borate cool-
ant with longlife
hybrid organic
acid technology
For the U.S.A.:
“Toyota Super
Long Life Cool-
ant” is pre-mixed
with 50% cool-
ant and 50%
deionized water.
For Canada:
“Toyota Super
Long Life Cool-
ant” is pre-mixed
with 55% cool-
ant and 45%
deionized water.
• Funnel (used only for adding
coolant)
Engine oil level
( P.458)
• “Toyota Genuine
Motor Oil” or
equivalent
• Rag or paper towel
• Funnel (used only for adding
engine oil)
Fuses
( P.487)• Fuse with same
amperage rating
as original
ItemsParts and tools

4576-3. Do-it-yourself maintenance
Owners Manual_USA_M0C031_en
6
Maintenance and care
Fuse boxes ( P.487)
Power control unit coolant reservoir ( P.460)
Intercooler coolant reservoir ( P.460)
Engine coolant reservoir ( P.460)
Engine oil filler cap ( P.458)
Engine oil level dipstick ( P.458)
Brake fluid reservoir ( P.461)
Engine radiator ( P.461)
Condenser ( P.461)
Electric cooling fans
Radiator cooling fan ( P.460)
Washer fluid tank ( P.462)
Intercooler radiators ( P.460)
Engine compar tment
Components

4876-3. Do-it-yourself maintenance
Owners Manual_USA_M0C031_en
6
Maintenance and care
1 Turn the power switch off.
2 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.
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.
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

4886-3. Do-it-yourself maintenance
Owners Manual_USA_M0C031_en
Under the right-hand rear seat
Lift the rear seat cushion. ( P.135)
Remove the cover.
3 Remove the fuse with the
pullout tool.
Only type A fuse can be removed using the pullout
tool.
4 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

4896-3. Do-it-yourself maintenance
Owners Manual_USA_M0C031_en
6
Maintenance and care
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 n ot 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 pr oducts 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.