air filter TOYOTA SEQUOIA 2021 Owners Manual (in English)

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SEQUOIA_OM_USA_OM0C035U6-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 398
Cleaning and protecting the vehicle interior ........... 402
6-2. Maintenance Maintenance requirements ................... 405
General maintenance ........ 407
Emission inspection and maintenance (I/M)
programs ......................... 410
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 411
Hood.................................. 414
Engine compartment ......... 415
Tires .................................. 426
Tire inflation pressure........ 438
Wheels .............................. 441
Air conditioning filter .......... 444
Electronic key battery ........ 446
Checking and replacing fuses ............................... 448
Light bulbs ......................... 451 7-1. Essential information
Emergency flashers ........... 460
If your vehicle has to be stopped in an
emergency....................... 461
If the vehicle is trapped in rising water .................. 463
7-2. Steps to take in an emergency
If your vehicle needs to be towed .......................... 464
If you think something is wrong............................... 468
Fuel pump shut off system ............................. 469
If a warning light turns on or a warning buzzer
sounds ............................. 470
If a warning message is displayed ......................... 479
If you have a flat tire .......... 491
If the engine will not start ................................. 505
If the electronic key does not operate properly ........ 507
If the vehicle battery is discharged ....................... 509
If your vehicle overheats.... 513
If the vehicle becomes stuck ................................ 516
6Maintenance and care7When trouble arises

3465-1. Using the air conditioning system and defogger
SEQUOIA_OM_USA_OM0C035U■
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 intake mode be
set to outside air mode and the fan speed to any setting except off.
■ When the indicator light on flashes
Press
to turn off the cooling and dehumidification function and turn it on
again. There may be a problem in the air conditioning system if the indicator
light continues to flash. Turn the air conditioning system off and have it
inspected by your Toyota dealer.
■ 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. 444

397
Maintenance and care6
SEQUOIA_OM_USA_OM0C035U6-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 398
Cleaning and protecting the vehicle interior ........... 402
6-2. Maintenance Maintenance requirements ................... 405
General maintenance........ 407
Emission inspection and maintenance (I/M)
programs......................... 410
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 411
Hood ................................. 414
Engine compartment ......... 415
Tires .................................. 426
Tire inflation pressure ....... 438
Wheels .............................. 441
Air conditioning filter.......... 444
Electronic key battery........ 446
Checking and replacing fuses ............................... 448
Light bulbs......................... 451

4136-3. Do-it-yourself maintenance
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Maintenance and care
SEQUOIA_OM_USA_OM0C035U
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 on, the electric cool-
ing fans may automatically start to run if the air conditioning is on and/or the
coolant temperature is high. ( P. 420)
■ 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.

4446-3. Do-it-yourself maintenance
SEQUOIA_OM_USA_OM0C035U
Air conditioning filter
Turn the engine switch to OFF.
Open the glove box.
Remove the internal tray.
Remove the inside 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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4456-3. Do-it-yourself maintenance
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Maintenance and care
SEQUOIA_OM_USA_OM0C035U
Remove the filter cover.
Remove the air conditioning fil-
ter 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
“Schedule 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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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.

576Alphabetical index
SEQUOIA_OM_USA_OM0C035U
Alphabetical index
A/C .................................... 340, 348Air conditioning filter ............. 444
Front air conditioning system ......... ....................... 340
Rear air conditioning system ......... ....................... 348
A/V input port
*
ABS
(Anti-lock Brake System)...... 322
Function ................................ 322
Warning light ......................... 471
Adaptive variable suspension system .................................... 314
Air conditioning filter .............. 444
Air conditioning system ............................ 340, 348
Air conditioning filter ............. 444
Airbags ....................................... 40 Airbag operating conditions .... 47
Airbag precautions
for your child ......................... 42
Airbag warning light .............. 470
Correct driving posture ........... 28
Curtain shield airbag
operating conditions ............. 47
Curtain shield airbag
precautions ........................... 44
Front passenger occupant classification syst em............. 51
General airbag precautions .... 42
Locations of airbags................ 40
Modification and disposal of airbags.............................. 46
Side airbag operating conditions ............................. 47
Side airbag precautions .......... 42
Side and curtain shield airbags operating conditions ............. 47
Side and curtain shield airbags precautions .............. 42
SRS airbags............................ 40 Alarm
Alarm ...................................... 84
Warning buzzer .................... 470
Anchor brackets ........................ 62
Anti-lock Brake System (ABS) ...................................... 322 Function ................................ 322
Warning light......................... 471
Armrest..................................... 382
Assist grip ................................ 384
Audio system
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Audio visual input*
AUTO LSD system................... 320
Automatic air conditioning system.................................... 340
Automatic High Beam ............. 231
Automatic light control system.................................... 227
Automatic transmission ......... 220 If the shift lever
cannot be shifted from P .... 223
S mode ................................. 221
AUX port
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Auxiliary boxes ........................ 370
AVS ........................................... 314
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