2020 TOYOTA 4RUNNER Owners Manual (in English)

577What to do if... (Troubleshooting)
4RUNNER (U)
●Is the shift lever in P? (P. 209)
●Is the steering wheel unlocked? ( P. 209)
●Is the battery discharged? (P. 513)
●Did you press the engine switch while firmly depressing the bra ke pedal?
( P. 212)
●Is the shift lever in P? ( P. 215)
●Is the electronic key anywhere detectable inside the vehicle? ( P. 119)
●Is the steering wheel unlocked? (P. 215)
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way. ( P. 511)
●Is the battery discharged? (P. 513)
●Vehicles without a smart key system:
Is the engine switch in the “ON” position?
If you cannot release the shift lever by depressing the brake p edal with the
engine switch in the “ON” position. ( P. 221)
●Vehicles with a smart key system:
Is the engine switch in IGNITION ON mode?
If you cannot release the shift lever by depressing the brake p edal with the
engine switch in IGNITION ON mode. ( P. 221)
If you think something is wrong
The engine does not start
(vehicles without a smart key system)
The engine does not start
(vehicles with a smart key system)
The shift lever cannot be shifted from P even if you depress
the brake pedal

578What to do if... (Troubleshooting)
4RUNNER (U)
●Vehicles without a smart key system:
It is locked to prevent theft of the vehicle if the key is pulled from the engine
switch. (P. 210)
●Vehicles with a smart key system:
It is locked automatically to prevent theft of the vehicle. ( P. 2 1 5 )
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be oper-
ated if the window lock switch is pressed. ( P. 162)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a peri od of
time. ( P. 214)
The steering wheel cannot be turned after the engine is
stopped
The windows do not open or close by operating the power
window switches
The engine switch is tur ned off automatically
(vehicles with a smart key system)

579What to do if... (Troubleshooting)
4RUNNER (U)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts?
(P. 480)
●The brake system warning light is on
Is the parking brake released? ( P. 224)
●The open door warning indicator is on
Are all the doors closed? (P. 110, 131)
Depending on the situation, other types of warning buzzer may a lso sound.
( P. 477, 487)

●Did anyone inside the vehicle open a door during setting the al arm?
The sensor detects it and the alarm sounds. ( P. 79)
To stop the alarm, turn the engine switch to IGNITION ON mode ( vehicles
with a smart key system) or start the engine.
●Is the electronic key left inside the vehicle?
Check the message on the multi-information display.
●When a warning light turns on, refer to P. 477.
●When a warning light turns on or a warning message or indicator is dis-
played, refer to P. 477, 487.
A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds w hen leaving the vehicle
(vehicles with a smart key system)
A warning light turns on or a warning message is displayed

580What to do if... (Troubleshooting)
4RUNNER (U)
●Stop the vehicle in a safe place and replace the flat tire with the spare
tire. ( P. 492)
●Try the procedure for when the vehicle becomes stuck in mud, di rt, or
snow. ( P. 520)
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck

581
4RUNNER (U)
Alphabetical index
Alphabetical index
A/C .................................... 340, 346Air conditioning filter ............. 440
ABS (Anti-lock Brake System)...... 321
Function ................................ 321
Warning light ......................... 478
Active head restraints ............. 137
Active traction control ............ 301
Air conditioning filter .............. 440
Air conditioning
system ............................ 340, 346 Air conditioning filter ............. 440
Airbags ....................................... 35
Airbag operating conditions .... 42
Airbag precautions for your child ......................... 37
Airbag warning light .............. 478
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 .......................................... 79
Alarm ...................................... 79
Warning buzzer .................... 477
Anchor brackets ........................ 57
Antennas (smart key system) ............... 118
Anti-lock Brake System (ABS) ...................................... 321
Function ................................ 321
Warning light......................... 478
Armrest..................................... 381
Assist grip ................................ 381
Audio system
*
AUTO LSD system................... 303
Automatic air conditioning
system.................................... 346
Automatic High Beam ............. 231
Automatic light control
system.................................... 225
Automatic running boards ..... 128
Automatic transmission ......... 218
If the shift lever cannot be shifted from P .... 221
S mode ................................. 219
AUX port
*
Auxiliary boxes ........................ 362
A
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

582Alphabetical index
4RUNNER (U)
Back doorBack door.............................. 131
Back window ......................... 166
Smart key system ................. 118
Wireless remote control ........ 110
Back window ............................ 166
Back-up lights Replacing light bulbs............. 460
Wattage ................................ 531
Battery ...................................... 415
Battery checking ................... 415
If the vehicle battery is discharged ...................... 513
Preparing and checking before winter....................... 330
Warning light ......................... 477
Bottle holders .......................... 364
Brake Fluid ...................................... 412
Parking brake........................ 224
Warning light ......................... 477
Brake assist ............................. 321
Brake override system ............ 177
Break-in tips ............................. 178
Brightness control Instrument panel light
control................................... 89 Care .................................. 390, 393
Aluminum wheels ................. 391
Exterior ................................. 390
Interior .................................. 393
Seat belts.............................. 394
Cargo capacity......................... 191
Cargo hooks ............................ 365
Cargo net hooks ...................... 366
Center differential lock ........... 297
Chains ...................................... 332
Child restraint system............... 53 Booster seats, definition ......... 54
Booster seats, installation....... 65
Convertible seats, definition ... 54
Convertible seats, installation ............................ 62
Front passenger occupant classification syst em ............ 46
Infant seats, definition............. 54
Infant seats, installation .......... 62
Installing CRS with LATCH anchors ............ 59
Installing CRS with seat belts...................................... 62
Installing CRS with top tether strap.............. 66
BC

583Alphabetical index
4RUNNER (U)
Child safety ................................ 52Airbag precautions .................. 37
Back door precautions .......... 133
Battery precautions ....... 416, 516
Child restraint system ............. 53
How your child should
wear the seat belt ................. 31
Installing child restraints ......... 57
Moon roof precautions .......... 173
Power window lock switch .... 162
Power window precautions ... 165
Rear door child-protectors .... 114
Removed electronic key battery precautions ...... 444
Seat belt extender precautions ........................... 34
Seat belt precautions .............. 56
Seat heater precautions........ 353
Child-protectors....................... 114
Cleaning ........................... 390, 393 Aluminum wheels.................. 391
Exterior ................................. 390
Interior................................... 393
Seat belts .............................. 394
Clock ......................................... 371
Compass .................................... 92
Condenser ................................ 412
Console box ............................. 359
Cooling system Engine overheating ............... 517
Crawl Control ........................... 311
Cruise control Dynamic radar cruise
control................................. 273
Cup holders.............................. 360
Curtain shield airbags ............... 35
Customizable features ............ 547 Daytime running light
system.................................... 229
Defogger Front windshield ................... 348
Outside rear view
mirrors ........................ 342, 348
Rear window ................. 342, 348
Dimension ................................ 522
Dinghy towing.......................... 208
Display Dynamic radar cruise control ................................ 273
LDA
(Lane Departure Alert) ....... 265
Multi-information display ......... 90
Trip information....................... 90
Warning message................. 487
Do-it-yourself maintenance .... 402
Door courtesy lights Wattage ................................ 531
Doors Automatic door locking
and unlocking system......... 115
Back door ............................. 131
Door lock ...................... 113, 132
Door windows ....................... 162
Open door warning buzzer ... 120
Open door warning light ....... 479
Outside rear view mirrors ..... 160
Rear door child-protector ...... 114
Side doors ............................ 110D

584Alphabetical index
4RUNNER (U)
Downhill assist control system .................................... 308
Drive-Start Control .................. 177
Driver’s seat position memory .................................. 149
Driving ...................................... 176 Break-in tips .......................... 178
Correct driving posture ........... 28
Driving assist systems .......... 321
Off-road precautions ............. 334
Procedures ........................... 176
Winter drive tips .................... 330
Dynamic radar cruise control .................................... 273 Eco Driving Indicator ................ 97
EDR (Event data recorder)........ 10
Electronic key .......................... 102
Battery-saving function ......... 121
If the electronic key does not
operate properly ................. 510
Replacing the battery............ 442
Emergency, in case of If the electronic key does not operate
properly .............................. 510
If the engine will not start ...... 507
If the vehicle battery is discharged.......................... 513
If the warning buzzer sounds................................ 477
If the warning light turns on ....................................... 477
If a warning message
is displayed ........................ 487
If you cannot operate back door opener ............... 509
If you have a flat tire ............. 492
If you think something is wrong .............................. 475
If your vehicle becomes
stuck ................................... 520
If your vehicle has to be stopped in an emergency ... 465
If your vehicle needs to be towed......................... 468
If your vehicle overheats....... 517E