air filter TOYOTA 4RUNNER 2018 Owners Manual (in English)

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4RUNNER (U)_(OM35B46U)6-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 338
Cleaning and protecting the vehicle interior ........... 341
6-2. Maintenance Maintenance requirements ................... 344
General maintenance ........ 346
Emission inspection and maintenance (I/M)
programs ......................... 349
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 350
Hood.................................. 353
Engine compartment ......... 354
Tires .................................. 369
Tire inflation pressure........ 375
Wheels .............................. 378
Air conditioning filter .......... 381
Wireless remote control/ electronic key battery ...... 383
Checking and replacing fuses ............................... 386
Light bulbs ......................... 389 7-1. Essential information
Emergency flashers ........... 406
If your vehicle has to be stopped in an
emergency....................... 407
7-2. Steps to take in an emergency
If your vehicle needs to be towed ...................... 409
If you think something is wrong............................... 415
Fuel pump shut off system ............................. 416
If a warning light turns on or a warning buzzer
sounds ............................. 417
If a warning message or indicator is displayed ....... 426
If you have a flat tire .......... 433
If the engine will not start ................................. 448
If you cannot operate back door opener ............ 450
If the electronic key does not operate properly ........ 451
If the vehicle battery is discharged ....................... 453
If your vehicle overheats......................... 457
If the vehicle becomes stuck ................................ 460
6Maintenance and care7When trouble arises

2945-1. Using the air conditioning system and defogger
4RUNNER (U)_(OM35B46U)■
Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the outside air m\
ode.
● 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.
● To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air
mode prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time
immediately after the air conditioning system is started in automatic
mode.
■ Air conditioning filter
→P. 381
CAUTION
■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 rear view mir-
ror defoggers are on.
● Do not touch the glass at lower part of the windshield or to the 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 necessary 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
from defogging.

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Maintenance and care6
4RUNNER (U)_(OM35B46U)6-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 338
Cleaning and protecting the vehicle interior ........... 341
6-2. Maintenance Maintenance requirements ................... 344
General maintenance........ 346
Emission inspection and maintenance (I/M)
programs......................... 349
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 350
Hood ................................. 353
Engine compartment ......... 354
Tires .................................. 369
Tire inflation pressure ....... 375
Wheels .............................. 378
Air conditioning filter.......... 381
Wireless remote control/ electronic key battery ...... 383
Checking and replacing fuses ............................... 386
Light bulbs......................... 389

3526-3. Do-it-yourself maintenance
4RUNNER (U)_(OM35B46U)
CAUTION
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 engine
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 rags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel or the bat-
tery. Fuel and battery fumes are flammable.
● Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
■ 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.

3816-3. Do-it-yourself maintenance
6
Maintenance and care
4RUNNER (U)_(OM35B46U)
Turn the engine switch off.
Open the glove box and
remove the cover.
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.
Air conditioning filter
The air conditioning filt er must be changed regularly to maintain
air conditioning efficiency.
Removal method
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3826-3. Do-it-yourself maintenance
4RUNNER (U)_(OM35B46U)
■Checking interval
Inspect and replace the air conditioning filter according to the maintenance
schedule. In dusty areas or areas with heavy traffic flow, early 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 vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
NOTICE
■When using the ai r conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the
system.

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4RUNNER (U)_(OM35B46U)
Alphabetical index
Alphabetical index
A/C .................................... 282, 288Air conditioning filter ............. 381
ABS (Anti-lock Brake System)...... 263
Function ................................ 263
Warning light ......................... 418
Active head restraints ............. 121
Active traction control ............ 243
Air conditioning filter .............. 381
Air conditioning
system ............................ 282, 288 Air conditioning filter ............. 381
Airbags ....................................... 35
Airbag operating conditions .... 42
Airbag precautions for your child ......................... 37
Airbag warning light .............. 418
Correct driving posture ........... 28
Curtain shield airbag operating conditions ............. 42
Curtain shield airbag precautions ........................... 39
Front passenger occupant classification syst em............. 46
General airbag precautions .... 37
Locations of airbags................ 35
Modification and disposal of airbags.............................. 41
Side airbag operating
conditions ............................. 42
Side airbag precautions .......... 37
Side and curtain shield airbags operating conditions ............. 42
Side and curtain shield airbags precautions .............. 37
SRS airbags............................ 35
Alarm .......................................... 72 Alarm ...................................... 72
Warning buzzer..................... 417 Anchor brackets ........................ 57
Antennas
(smart key system) ............... 104
Anti-lock Brake System (ABS) ...................................... 263
Function ................................ 263
Warning light......................... 418
Armrest..................................... 322
Assist grip ................................ 323
Audio system
*
AUTO LSD system................... 245
Automatic air conditioning
system.................................... 288
Automatic light control
system.................................... 208
Automatic running boards ..... 112
Automatic transmission ......... 201 If the shift lever cannot be shifted from P .... 204
S mode ................................. 202
AUX port
*
Auxiliary boxes ........................ 304
Back door Back door ............................. 115
Back window......................... 150
Smart key system ................. 104
Wireless remote control .......... 97
Back window............................ 150
Back-up lights Replacing light bulbs ............ 401
Wattage ................................ 473
Battery ...................................... 364 Battery checking ................... 364
If the vehicle battery
is discharged ...................... 453
Preparing and checking
before winter ...................... 272
Warning light......................... 417
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*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.