2018 TOYOTA TUNDRA air filter

TABLE OF CONTENTS6
7-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 470
Cleaning and protecting the vehicle interior ........... 473
7-2. Maintenance Maintenance requirements ................... 476
General maintenance ........ 478
Emission inspection and maintenance (I/M)
programs ......................... 481
7-3. Do-it-yourself maintenance Do-it-yourself service precautions ..................... 482
Hood.................................. 484
Engine compartment ......... 485
Tires .................................. 495
Tire inflation pressure........ 507
Wheels .............................. 510
Air conditioning filter .......... 513
Wireless remote control battery ............................. 516
Checking and replacing fuses ............................... 518
Light bulbs ......................... 521 8-1. Essential information
Emergency flashers ........... 538
If your vehicle has to be stopped in
an emergency.................. 539
8-2. Steps to take in an emergency
If your vehicle needs to be towed .......................... 540
If you think something is wrong............................... 545
Fuel pump shut off system ............................. 546
If a warning light turns on or a warning buzzer
sounds ............................. 547
If a warning message is displayed ......................... 555
If you have a flat tire .......... 565
If the engine will not start ................................. 580
If the vehicle battery is discharged ....................... 582
If your vehicle overheats.... 585
If the vehicle becomes stuck ................................ 588
7Maintenance and care8When trouble arises

4176-1. Using the air conditioning system
6
Interior features
■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.
■ Outside/recirculated air mode
When driving on dusty roads such as tunnels or in heavy traffic, set the out-
side/recirculated air mode button to the recirculated air mode. This is effective
in preventing outside air from entering the vehicle interior. During cooling
operation, setting the recirculated air mode will also cool the vehicle interior
effectively.
■ When the outside temperature exceeds 75 F (24 C) and air conditioning
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.
● 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
pressed.
■ Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the out side air mode.
● During use, various odors from inside and outside the vehicle m ay 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 ou tside air
mode prior to turning the vehicle off.
■ Air conditioning filter
P. 513

4256-1. Using the air conditioning system
6
Interior features
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the out side air mode.
● During use, various odors from inside and outside the vehicle m ay 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 aut omatic
mode.
■ Air conditioning filter
P. 513
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 t hat of the
windshield can cause the outer surface of the windshield to fog up, block-
ing your vision.
■ To prevent burns (vehicles with rear view mirror defoggers and wind-
shield wiper de-icer)
● Do not touch the rear view mirror surfaces when the outside rear view mir-
ror defoggers are on.
● Do not touch the glass at lower part of the windshield or to th e side of the
front pillars, when the windshield wiper de-icer is 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.

469
7Maintenance and care
7-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 470
Cleaning and protecting the vehicle interior ........... 473
7-2. Maintenance Maintenance requirements ................... 476
General maintenance ........ 478
Emission inspection and maintenance (I/M)
programs ......................... 481 7-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 482
Hood ................................. 484
Engine compartment ......... 485
Tires .................................. 495
Tire inflation pressure ....... 507
Wheels .............................. 510
Air conditioning filter.......... 513
Wireless remote control battery ............................. 516
Checking and replacing fuses ............................... 518
Light bulbs......................... 521

4837-3. Do-it-yourself maintenance
7
Maintenance and care
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
● Keep hands, clothing and tools away from the moving fan and eng ine
drive belt.
● Be careful not to touch the engine, 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 r ags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel or t he bat-
tery. Fuel and battery fumes are flammable.
● Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
■ When working near the electric cooling fan or radiator grille
Be sure the engine switch is off.
With the engine switch in the “ON” position, the electric cooli ng fan may
automatically start to run if the air conditioning is on and/or the coolant tem-
perature is high. ( P. 490)
■ 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.

5137-3. Do-it-yourself maintenance
7
Maintenance and care
Air conditioning filter
Turn the engine switch off.
Open the glove box.
Remove the tray.
Remove the cover by sliding up
while pulling toward you.
The air conditioning filter must be changed regularly to maintain
air conditioning efficiency.
Removal method
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3
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5147-3. Do-it-yourself maintenance
Remove the filter cover.
Pull the filter out of the filter out-
let.
Remove the air conditioning filter
and replace it with a new one.
The “UP” marks shown on the fil-
ter should be pointing up.
■ Checking interval
Inspect and replace the air conditioning filter according to th e maintenance
schedule. In dusty areas or areas with heavy traffic flow, earl y replacement
may be required. (For scheduled maintenance information, please refer to the
“Scheduled Maintenance Guide” or “Owner’s Manual Supplement”.)
■ If air flow from the ven ts decreases dramatically
The filter may be clogged. Check the filter and replace if nece ssary.
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6
Replacement method

5157-3. Do-it-yourself maintenance
7
Maintenance and care
NOTICE
■When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause da mage to the
system.