2022 TOYOTA TUNDRA air conditioning

3475-1. Using the air conditioning system
5
Interior features
■Switching between outside air and recirculated air modes
Press .
The mode switches between outside air mode (introduces air from
outside the vehicle) (indicator off) and recirculated air mode (recy-
cles air inside the vehicle) (in dicator on) each time the butto n is
pressed.
■Defogging the windshield
Defoggers are used to defog the windshield and front side win-
dows.
Press .
Set the outside/recirculated air mode button to outside air mod e if the recir-
culated air mode is used. (It may switch automatically.) To def og the wind-
shield and the side windows early, turn the air flow and temper ature up.
To return to the previous mode, press again when the windshield is
defogged.
■
Defogging the outside rear view mirrors
Defogger is used to defog to remove raindrops, dew and frost fr om
the outside rear view mirrors.
Press .
The defogger will automatically turn off after approximately 15 minutes.
Other functions

3485-1. Using the air conditioning system
■Location of air outlets
Air outlets and air volume
changes according to the
selected airflow mode.
*: Double Cab models only
■
Adjusting the position of and opening and closing the air out-
lets
Direct air flow to the left or right,
up or down.
Open the vent
Close the vent
Air outlets
*
*
1
2

3495-1. Using the air conditioning system
5
Interior features
■Using automatic mode
Fan speed is adjusted automatically according to the temperatur e setting and
the ambient conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow
immediately after is pressed.
■ Fogging up of the windows
●The windows will easily fog up when the humidity in the vehicle is high.
Turning on will dehumidify the air from the outlets and defog the
windshield effectively.
● If you turn off, the windows 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 vehi-
cle after closing the windows, it is recommended that the air i ntake mode be
set to outside air mode and the fan speed to any setting except off.
■ Outside/recirculated air mode
●Setting to the recirculated air mode temporarily is recommended in prevent-
ing dirty air from entering the vehicle interior and helping to cool the vehicle
when the outside air temperature is high.
● Outside/recirculated air mode may automatically switch dependin g on the
temperature setting or the inside temperature.
■ When the outside temperature exceeds 75°F (24°C) and the air co ndition-
ing system is on
● In order to reduce the air conditioning power consumption, the air condition-
ing system may switch to recirculated air mode automatically. This may also
reduce fuel consumption.
● Recirculated air mode is selected as a default mode when the en gine switch
is in the “ON” position (vehicles without a smart key system) o r IGNITION
ON mode (vehicles with a smart key system).
● It is possible to switch to outside air mode at any time by pre ssing .
■ When the outside tempera ture falls to nearly 32F (0 C)
The dehumidification function may not operate even when is selected.

3505-1. Using the air conditioning system
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning 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 ca use odor to
be emitted from the vents.
● To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to o utside air
mode prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short peri od of time
immediately after the air conditioning system is started in automatic
mode.
■ Air conditioning filter
P. 448
WARNING
■To prevent the windshield from fogging up
● Do not use
during cool air operation in extremely humid weather.
The difference between the temperature of the outside air and that of the
windshield can cause the outer surface of the windshield to fog up, block-
ing your vision.
■ To prevent burns
Do not touch the rear view mirror surfaces when the outside rea r view mirror
defoggers are on.
NOTICE
■ To prevent battery discharge
Do not leave the air conditioning system on longer than necessa ry when the
engine is stopped.
● Do not place anything on the instrument
panel which may cover the air outlets.
Otherwise, air flow may be obstructed,
preventing the windshield defoggers to
defog.

3515-1. Using the air conditioning system
5
Interior features
Seat heaters1
1: If equipped
WARNING
■Burns
● Use caution when seating the following persons in a seat with t he seat
heater on to avoid the possibility of burns:
• Babies, small children, the elderly, the sick and the physically chal- lenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs, cold remedies, etc.)
● Do not cover the seat with anything when using the seat heater.
Using the seat heater with a blanket or cushion increases the temperature
of the seat and may lead to overheating.
● Do not use seat heater more than necessary. Doing so may cause minor
burns or overheating.
NOTICE
■ To prevent damage to the seat heaters
Do not put heavy objects that have an uneven surface on the sea t and do
not stick sharp objects (needles, nails, etc.) into the seat.
■ To prevent battery discharge
Turn the seat heaters off when the engine is not running.

3525-1. Using the air conditioning system
Turns the seat heaters on
Drivers side
Front passenger side
Each time the switch is pressed,
the operation condition changes as
follows.
Hi (3 segments lit)  Mid (2 seg-
ments lit)  Lo (1 segment lit) 
Off
The level indicator (amber) light up
during operation.
■ The seat heaters can be used when
Vehicles without a smart key system
The engine switch is in the “ON” position.
Vehicles with a smart key system
The engine switch is in IGNITION ON mode.
■ When not in use
Turn the seat heaters off by pressing the button. The indicator light turns off.
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2

3805-4. Other interior features
NOTICE
■To avoid damaging the power outlet and the plug
● Close the power outlet lid when not in use.
● Do not allow foreign objects or liquids to enter the power outlet, as this
may cause a short circuit.
● Do not use plug adaptors to connect too many plugs to the power outlet.
● After removing a plug, gently close the power outlet lid.
■ To prevent the fuse from being blown
Do not use a 120 V AC appliance that requires more than the maximum
capacity of the power outlet. If a 120 V AC appliance that consumes more
than the maximum capacity is used, the protection circuit will cut the power
supply.
■ Appliances that may not op erate properly (120 V AC)
The following 120 V AC appliances may not operate even if their power con-
sumption is under maximum capacity.
● Appliances with high initial peak wattage
● Measuring devices that process precise data.
● Other appliances that require an extremely stable power supply
■ To prevent battery discharge
Turn off all the vehicle’s electronic equipment and accessories, such as the
headlights and air conditioning, when electrical appliances tha t consume in
excess of 100 W are used continuously for long periods of time.
■ To prevent any damage caused by heat
● Do not use any electrical appliances that give off intense heat, such as
toasters, in any locations including the internal or external t rim, seats and
deck.
● Do not use any electrical appliances that are easily affected by vibration or
heat inside the vehicle. Vibration while driving, or the heat o f the sun while
parking, may result in damage to those electrical appliances.
■ If any electrical appliances are to be used while driving
Securely fasten both the appliances and their cables to prevent them from
falling or getting caught in any of the power train components.
■ If the power outlet is loose when an electrical appliance plug is con-
nected
Replace the outlet. Contact your Toyota dealer for any necessary replace-
ments.
■ If the power outlet gets dirty
Turn the main switch off and use a soft, clean cloth to wipe it gently. Do not
use any cleansing materials, such as organic solvents, wax, or compound
cleaners, as these may damage the power outlet or cause it to m alfunction.

401
6Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 402
Cleaning and protecting the vehicle interior ........... 406
6-2. Maintenance Maintenance requirements ................... 409
General maintenance ........ 411
Emission inspection and maintenance (I/M)
programs ......................... 414 6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 415
Hood ................................. 417
Engine compartment ......... 419
Tires .................................. 431
Tire inflation pressure ....... 442
Wheels .............................. 445
Air conditioning filter.......... 448
Wireless remote control/ electronic key battery ...... 451
Checking and replacing fuses ............................... 454
Light bulbs......................... 457