2021 TOYOTA 4RUNNER air conditioning

TABLE OF CONTENTS4
4RUNNER (U)5-1. Using the air
conditioning system
and defogger
Manual air conditioning system............................. 340
Automatic air conditioning system ........ 347
Seat heaters/ seat ventilators ................ 355
5-2. Using the interior lights Interior lights list ................ 357
• Interior lights ................. 358
• Personal lights .............. 358 5-3. Using the storage
features
List of storage features ...... 360
• Glove box ...................... 361
• Console box .................. 361
• Cup holders ................... 362
• Auxiliary box .................. 364
• Coin holder/tissue pocket/pen holder.......... 365
• Bottle holders ................ 366
Luggage compartment features ........................... 367
5-4. Other interior features Other interior features........ 372
• Sun visors ..................... 372
• Vanity mirrors ................ 372
• Clock ............................. 373
• Power outlets (120 V AC) .................... 374
• Power outlets ................ 378
• USB charging ports ....... 381
• Armrest.......................... 383
• Assist grips .................... 383
Garage door opener .......... 384
5Interior features

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4RUNNER (U)6-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 392
Cleaning and protecting the vehicle interior ........... 395
6-2. Maintenance Maintenance requirements ................... 398
General maintenance ........ 400
Emission inspection and maintenance (I/M)
programs ......................... 403
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 404
Hood.................................. 407
Engine compartment ......... 408
Tires .................................. 422
Tire inflation pressure........ 436
Wheels .............................. 439
Air conditioning filter .......... 441
Wireless remote control/ electronic key
battery ............................. 443
Checking and replacing fuses ............................... 446
Light bulbs ......................... 449 7-1. Essential information
Emergency flashers ........... 462
If your vehicle has to be stopped in an
emergency....................... 463
If the vehicle is trapped in rising water ...................... 465
7-2. Steps to take in an emergency
If your vehicle needs to be towed .......................... 466
If you think something is wrong............................... 472
Fuel pump shut off system ............................. 473
If a warning light turns on or a warning buzzer
sounds ............................. 474
If a warning message is displayed ......................... 484
If you have a flat tire .......... 489
If the engine will not start ................................. 504
If you cannot operate back door opener ............ 506
If the electronic key does not operate properly
(vehicles with a smart
key system) ..................... 507
If the vehicle battery is discharged ....................... 510
If your vehicle overheats......................... 514
If the vehicle becomes stuck ................................ 517
6Maintenance and care7When trouble arises

17Pictorial index
4RUNNER (U)Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 90
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 90
When the warning messages are displayed . . . . . . . . . . . . . . P. 484
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 224
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 224
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 330
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . P. 474, 484
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 223
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 225
Headlights/parking lights/tail lights/daytime running lights . .
. . P. 225
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 234
Windshield wiper and washer switch . . . . . . . . . . . . . . . . . P. 236
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 236
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 420
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . P. 462
Hood lock release lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 407
Tilt and telescopic steering lock release lever . . . . . . . . . . P. 156
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . P. 340, 347
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 340, 347
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 342, 349
Audio/Navigation system
*
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 373
*: Refer to “NAVIGATION AND MULT IMEDIA SYSTEM OWNER’S MANUAL”.
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2524-5. Using the driving support systems
4RUNNER (U)If the message does not disappear, contact your Toyota dealer.
SituationActions
When the area around a cam-
era is covered with dirt, mois-
ture (fogged up, covered with
condensation, ice, etc.), or
other foreign matter
Using the wiper and A/C function,
remove the dirt and other attached mat-
ter. (
P. 342, 349)
When the temperature around
the front camera is outside of
the operational range, such as
when the vehicle is in the sun or
in an extremely cold environ-
ment
If the front camera is hot, such as after
the vehicle had been parked in the sun,
use the air conditioning system to
decrease the temperature around the
front camera.
If a sunshade was used when the vehi-
cle was parked, depending on its type,
the sunlight reflected from the surface
of the sunshade may cause the tem-
perature of the front camera to become
excessively high.
If the front camera is cold, such after the
vehicle is parked in an extremely cold
environment, use the air conditioning
system to increase the temperature
around the front camera.
The area in front of the front
camera is obstructed, such as
when the hood is open or a
sticker is attached to the part of
the windshield in front of the
front camera.
Close the hood, remove the sticker, etc.
to clear the obstruction.
When “Pre-Collision System
Unavailable” is displayed.Check whether there is attached materi-
als on the radar sensor and radar sensor
cover, and if there is, remove it.

2904-5. Using the driving support systems
4RUNNER (U)●
The shape of the obstacle may prevent the sensor from detecting it. Pay
particular attention to the following obstacles:
• Wires, fences, ropes, etc.
• Cotton, snow and other materials that absorb sound waves
• Sharply-angled objects
• Low obstacles
• Tall obstacles with upper sections projecting outwards in the direction of your vehicle
● The following situations may occur during use.
• Depending on the shape of the obstacle and other factors, the detection
distance may shorten, or detection may be impossible.
• Obstacles may not be detected if they are too close to the sen sor.
• There will be a short delay between obstacle detection and dis play. Even
at slow speeds, there is a possibility that the obstacle will c ome within the
sensor’s detection areas before the display is shown and the wa rning
beep sounds.
• Thin posts or objects lower than the sensor may not be detected for colli-
sion when approached, even if they have been detected once.
• It might be difficult to hear beeps due to the volume of audio system or air
flow noise of air conditioning system.
■ When the system malfunctions
●If “Clean park sonar” is shown
A sensor may be dirty or covered with snow or ice. In such case s, if it is
removed from the sensor, the system should return to normal. Al so, due to
the sensor being frozen at low temperatures, a malfunction disp lay may
appear or an obstacle may not be detected. If the sensor thaws out, the sys-
tem should return to normal.
● If “Check park sonar system” is shown
Depending on the malfunction of the sensor, the device may not be working
normally. Have the vehicle inspected by your Toyota dealer.
■ Customization that can be configured at Toyota dealer
Some functions can be customized. (Customizable features P. 545)
■ Certification
For vehicles sold in the U.S.A.
This device complies with Part 15 of the FCC Rules. Operation i s subject to
the following two conditions; (1) This device may not cause har mful interfer-
ence, and (2) This device must accept any interference received, including
interference that may cause undesired operation.
For vehicles sold in Canada
This ISM device complies with Canadian ICES-001.
Cet appareil ISM est conforme a la norme NMB-001 du Canada.

339
Interior features5
4RUNNER (U)5-1. Using the air
conditioning system
and defogger
Manual air conditioning system ............................ 340
Automatic air conditioning system ........ 347
Seat heaters/ seat ventilators ................ 355
5-2. Using the interior lights Interior lights list ................ 357
• Interior lights ................. 358
• Personal lights .............. 358
5-3. Using the storage features
List of storage features ..... 360
• Glove box...................... 361
• Console box .................. 361
• Cup holders .................. 362
• Auxiliary box ................. 364
• Coin holder/tissue pocket/pen holder ......... 365
• Bottle holders ................ 366
Luggage compartment features ........................... 367
5-4. Other interior features Other interior features ....... 372
• Sun visors ..................... 372
• Vanity mirrors................ 372
• Clock ............................. 373
• Power outlets (120 V AC) .................... 374
• Power outlets ................ 378
• USB charging ports....... 381
• Armrest ......................... 383
• Assist grips ................... 383
Garage door opener.......... 384

340
4RUNNER (U)
5-1. Using the air conditioning system and defogger
■Adjusting the temperature setting
To adjust the temperature setting, turn clockwise (warm) or
counterclockwise (cool).
If is not pressed, the system will blow ambient temperature air o r
heated air.
For quick cooling, turn the temperature control knob to “MAX A/ C”. The
air conditioning will automatically turn on and, if an air outl et position
other than or is selected, the system will be set to recircu-
lated air mode. While “MAX A/C” is selected, it is not possible to turn off
the air conditioning.
Manual air conditioning system
: If equipped
Air conditioning controls

3415-1. Using the air conditioning system and defogger
5
Interior features
4RUNNER (U)■
Fan speed setting
To adjust the fan speed, turn clockwise (increase) or coun-
terclockwise (decrease).
Turning the knob to “OFF” turns off the fan.
■
Change the airflow mode
To select the air outlets, set to the desired position.
The positions between the air outlet selections shown below can also be
selected for more delicate adjustment.
■
Other functions
● Switching between outside a ir and recirculated air modes
● Defogging the windshield ( P. 3 4 2 )
● Defogging the rear window and outside rear view mirrors
(  P. 342)
● Windshield wiper de-icer (if equipped) ( P. 3 4 2 )
■Switching between outside air and recirculated air modes
Press .
The mode switches between outside air mode (introduces air from out-
side the vehicle) (indicator off) and recirculated air mode (re cycles air
inside the vehicle) (indicator on) each time the button is pressed.
Other functions