2022 TOYOTA TUNDRA HYBRID air filter

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

791-4. Hybrid system
Owners Manual_USA_M0C031_en
1
For safety and security
There are an air intake vents
under the rear seat for the pur-
pose of cooling the hybrid bat-
tery (traction battery). If the
vents becomes blocked, the
hybrid battery (traction battery)
input and output may be
reduced. When a certain level of impact is
detected by the impact sensor,
the emergency shut off system
blocks the high voltage current
and stops the fuel pump to mini-
mize the risk of electrocution
and fuel leakage. If the emer-
gency shut off system activates,
your vehicle will not restart. To
restart the hybrid system, con-
tact your Toyota dealer.
A message is automatically dis-
played when a malfunction
occurs in the hybrid system or
an improper operation is
attempted.
If a warning message is shown
on the multi-information display,
NOTICE
■Hybrid battery (traction bat-
tery) air intake vents
Do not carry large amounts of
water such as water cooler bottles
in the vehicle. If water spills onto
the hybrid battery (traction bat-
tery), the batte ry may be dam-
aged. Have the vehicle inspected
by your Toyota dealer.
Hybrid battery (traction
battery) air intake vents
NOTICE
■Hybrid battery (traction bat-
tery) air intake vents
●Make sure that the air intake
vents are not blocked, such as
by a seat cover, plastic cover, or
luggage. If the vents are
blocked, the hybrid battery
(traction battery) input and out-
put may be restricted, possibly
leading to a malfunction.
●Clean the air intake vents regu-
larly to prevent the hybrid bat-
tery (traction b attery) from
overheating.
●Do not get water or foreign
materials in the air intake vents
as this may cause a short circuit
and damage the hybrid battery
(traction battery).
●A filter is installed to the air
intake vents. When the filter
remains noticeably dirty even
after cleaning the air intake
vents, filter cleaning or replace-
ment is recommended. Refer to
P.481 for details on how to
clean the filters.
Emergency shut off sys-
tem
Hybrid warning message

4025-1. Using the air conditioning system and defogger
Owners Manual_USA_M0C031_en
outside rear view mirrors.
Press the rear window and out-
side rear view mirror defoggers
switch.
The defoggers will automatically
turn off after 15 minutes.
When the rear window and outside
rear view mirror defoggers switch is
on, the indicator illuminates on the
rear window and ou tside rear view
mirror defoggers switch.
■When the outside temperature
exceeds 75°F (24°C) and the air
conditioning system is on
●In order to reduce the air condi-
tioning power consumption, the air
conditioning system may switch to
recirculated air mode automati-
cally.
This may also reduce fuel con-
sumption.
●Recirculated air mode is selected
as a default mode when the power
switch is turned to ON.
It is possible to switch to outside air
mode at any time by pressing the
outside air mode switch.
■Fogging up of the windows
●The windows will easily fog up
when the humidity in the vehicle is
high. Turning the cooling and
dehumidification function on will
dehumidify the air from the outlets
and defog the windshield effec-
tively.
●If you turn the cooling and dehu-
midification function off, the win-
dows may fog up more easily.
●The windows may fog up if the
recirculated air mode is used.
■When driving on dusty roads
Close all windows. If dust thrown up
by the vehicle is still drawn into the
vehicle after closing the windows, it
is recommended that the air intake mode be set to outside air mode and
the fan speed to a
ny setting except
off.
■Outside/recirculated air mode
●Setting to the recirculated air
mode temporarily is recom-
mended in preventing dirty air
from entering the vehicle interior
and helping to c ool the vehicle
when the outside air temperature
is high.
●Outside/recirculated air mode may
automatically switch depending on
the temperature setting or the
inside temperature.
■When the outside temperature
falls to nearly 32°F (0°C)
The dehumidification function may
not operate even when “A/C” switch
is pressed.
■Ventilation and air conditioning
odors
●To let fresh air in, set the air condi-
tioning system to the outside air
mode.
●During use, various odors from
inside and outside the vehicle may
enter into and accumulate in the
air conditioning system. This may
then cause odor to be emitted
from the vents.
●In order to suppr ess odors that
occur when the air conditioning
system starts, the air flow mode
may change to blow air to the feet
or air may stop blowing for a short
period of time immediately after
the air conditioning system is
started in automatic mode.
●When parking, the system auto-
matically switches to outside air
mode to encourage better air cir-
culation throughout the vehicle,
helping to reduce odors that occur
when starting the vehicle.
■Air conditioning filter
 P.479

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

4556-3. Do-it-yourself maintenance
Owners Manual_USA_M0C031_en
6
Maintenance and care
Light bulbs
(  P.491)
• Bulb with same
number and
wattage rating as
original
• Phillips-head screwdriver
• Wrench
Radiator and
condenser
(  P.461)

Tire inflation
pressure
( P.476)• Tire pressure
gauge
• Compressed air source
Washer fluid
( P.462)
• Water or washer
fluid containing
antifreeze (for
winter use)
• Funnel (used only for adding
water or washer
fluid)
WARNING
The engine compartment contains
many mechanisms and fluids that
may move suddenly, become hot,
or become electrically energized.
To avoid death or serious injury,
observe the following precautions.
■When working on the engine
compartment
●Make sure that the “ACCES-
SORY” or “IGNITION ON” on
the multi-inform ation display
and the “READY” indicator are
both off.
●Keep hands, clothing and tools
away from the moving fan and
engine.
ItemsParts and tools●Be careful not to touch the
engine, inverter, radiator,
exhaust manifold, etc., right
after driving as they may be hot.
Oil and other fluids may also be
hot.
●Do not leave anything that may
burn easily, such as paper and
rags, in the engine compart-
ment.
●Do not smoke, cause sparks or
expose an open flame to fuel.
■When working near the elec-
tric cooling fan or radiator
grille
Be sure the power switch is off.
With the power switch in ON, the
electric cooling fa n may automati-
cally start to run if the air condi-
tioning is on and/or the coolant
temperature is high. ( P.461)
■Safety glasses
Wear safety glasses to prevent
flying or falling material, fluid
spray, etc., from getting in your
eyes.
NOTICE
■If you remove the air cleaner
filter
Driving with the air cleaner filter
removed may cause excessive
engine wear due to dirt in the air.

4796-3. Do-it-yourself maintenance
Owners Manual_USA_M0C031_en
6
Maintenance and care
 Use only Toyota wheel nuts
and wheel nut wrenches
designed for use with your
aluminum wheels.
 When rotating, repairing or
changing your tires, check
that the wheel nuts are still
tight after driving 1000 miles
(1600 km).
 Be careful not to damage the
aluminum wheels when using
tire chains.
 Use only Toyota genuine bal-
ance weights or equivalent
and a plastic or rubber ham-
mer when balancing your
wheels. 1
Turn the power switch off.
2 Open the glove box.
3 Remove the panel.
4 Unlock the filter cover ( ),
pull the filter cover out of the
NOTICE
■Replacing tire pressure warn-
ing valves and transmitters
●Because tire repair or replace-
ment may affect the tire pres-
sure warning valves and
transmitters, make sure to have
tires serviced by your Toyota
dealer or other qualified service
shop. In addition, make sure to
purchase your tire pressure
warning valves and transmit-
ters at your Toyota dealer.
●Ensure that only genuine Toyota
wheels are used on your vehi-
cle.
Tire pressure warning valves
and transmitters may not work
properly with non-genuine
wheels.
Aluminum wheel precau-
tions
Air conditioning filter
The air conditioning filter
must be changed regularly
to maintain air conditioning
efficiency.
Removing the air condi-
tioning filter

4806-3. Do-it-yourself maintenance
Owners Manual_USA_M0C031_en
claws ( ), and remove the
filter cover.
5 Remove the filter case.
6 Remove the air conditioning
filter from the filter case and
replace it with a new one.
The “ UP” marks shown on the
filter and the filter case should be
pointing up.
■Checking interval
Inspect and replace the air condi-
tioning filter according to the mainte-
nance schedule. In dusty areas or areas with heavy traffic flow, early
replacement may be required. (For
scheduled maintenance information,
please refer to the “Owner’s Manual
Supplement” or “Scheduled Mainte-
nance”.)
■If air flow from the vents
decreases dramatically
The filter may be clogged. Check
the filter and rep lace if necessary.
NOTICE
■When using the air condition-
ing system
Make sure that a filter is always
installed.
Using the air conditioning system
without a filter may cause damage
to the system.
■To prevent damage to the fil-
ter cover
When moving the filter cover in
the direction of arrow to release
the fitting, pay attention not to
apply excessive force to the
claws. Otherwise, the claws may
be damaged.

4816-3. Do-it-yourself maintenance
Owners Manual_USA_M0C031_en
6
Maintenance and care
Remove the dust from the air
intake vents with a vacuum
cleaner, etc.
Make sure to only use a vacuum to
suck out dust and clogs. Attempting
to blow out dust and clogs using an
airgun, etc. may push it into the air
intake vents. ( P.484)
If dust and clogs cannot be com-
pletely removed with the air
intake vent cover installed,
remove the cover and clean the
filter.
1Turn the power switch off.
2 Using a flathead screwdriver,
remove the air intake vent
cover.
1 Pull the cover as shown in
the illustration to disengage
the 2 claws.
2 Pull the cover toward the side
of the vehicle to remove it.
Cleaning the hybrid
batter y (traction bat-
ter y) air intake vent
and filter
To prevent the fuel economy
from being affected, visually
inspect the hybrid battery
(traction battery) air intake
vent periodically for dust
and clogs. If it is dusty or
clogged or if “Maintenance
Required for Traction Bat-
tery Cooling Parts See
Owner’s Manual” is dis-
played on the multi-informa-
tion display, clean the air
intake vent using the follow-
ing procedures:
Cleaning the air intake
vents
If dust and clogs cannot
be completely removed