2021 TOYOTA 4RUNNER run flat

578What to do if... (Troubleshooting)
4RUNNER (U)
●Stop the vehicle in a safe place and replace the flat tire with the spare
tire. ( P. 489)
●Try the procedure for when the vehicle becomes stuck in mud, di rt, or
snow. ( P. 517)
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck

582Alphabetical index
4RUNNER (U)
Driving ...................................... 176Break-in tips .......................... 178
Correct driving posture ........... 28
Driving assist systems .......... 320
Off-road precautions ............. 333
Procedures ........................... 176
Winter drive tips .................... 329
Dynamic radar cruise
control .................................... 272
Eco Driving Indicator ................ 97
EDR (Event data recorder) ........ 10
Electronic key .......................... 102 Battery-saving function ......... 121
If the electronic key does not operate properly ................. 507
Replacing the battery ............ 443
Emergency, in case of
If the electronic key does not operate
properly .............................. 507
If the engine will not start ...... 504
If the vehicle battery is discharged .......................... 510
If the warning buzzer sounds ................................ 474
If the warning light turns on ....................................... 474
If a warning message is displayed......................... 484
If you cannot operate
back door opener ............... 506
If you have a flat tire ............. 489
If you think something is wrong .............................. 472
If your vehicle becomes stuck ................................... 517
If your vehicle has to be stopped in an emergency ... 463
If your vehicle needs
to be towed ......................... 466
If your vehicle overheats ....... 514 Emergency flashers ................ 462
Engine
ACCESSORY mode ............. 213
Compartment ........................ 408
Engine switch ............... 209, 212
Hood ..................................... 407
How to start the engine ........................ 209, 212
Identification number ............ 521
If the engine will not start ...... 504
Ignition switch (engine switch) ........... 209, 212
Overheating .......................... 514
Engine coolant......................... 412
Capacity................................ 524
Checking............................... 412
Preparing and checking before winter ...................... 329
Engine coolant temperature gauge ....................................... 88
Engine immobilizer system ...... 76
Engine oil ................................. 410 Capacity................................ 523
Checking............................... 410
Preparing and checking
before winter ...................... 329
Engine switch .................. 209, 212
Event data recorder (EDR)........ 10
Flat tire ..................................... 489
Floor mats .................................. 26
Fluid
Automatic transmission ........ 527
Brake .................................... 527
Power steering...................... 528
Washer ................................. 420
Fog lights ................................. 234
Replacing light bulbs ............ 449
Switch ................................... 234
Wattage ................................ 529
Four-wheel drive system............................ 292, 296
E
F

588Alphabetical index
4RUNNER (U)
Seats ................................. 136, 139Adjustment .................... 136, 139
Adjustment
precautions ................. 138, 148
Child seats/child restraint
system installation . ............... 57
Cleaning................................ 395
Driving position memory ....... 149
Head restraints ..................... 153
Properly sitting in the seat ...... 28
Seat heaters ......................... 355
Seat position memory ........... 149
Seat ventilators ..................... 355
Sensor
Automatic headlight system ......... ....................... 228
Inside rear view mirror .......... 159
Intuitive parking assist .......... 285
Service reminder indicators ..... 82
Shift lever ................................. 218 Automatic transmission......... 218
If the shift lever cannot be shifted from P .... 221 Shift lock system ..................... 220
Side airbags ............................... 35
Side marker lights ................... 225
Light switch ........................... 225
Replacing light bulbs ............ 454
Wattage ................................ 529
Side mirrors ............................. 160 Adjusting and folding ............ 160
Side turn signal lights ............. 223
Slide deck................................. 370
Smart key system .................... 118 Antenna location ................... 118
Entry functions ...................... 110
Starting the engine ............... 212
Snow tires ................................ 332
Spare tire .................................. 489 Inflation pressure .................. 528
Storage location.................... 490
Spark plug ................................ 524
Specifications .......................... 520
Speedometer.............................. 88
Steering lock ............................ 215 Column lock release ............. 215
Steering lock system
warning message ............... 215
Steering wheel ......................... 156 Adjustment............................ 156
Storage feature ........................ 360
Storage precautions................ 189
Stuck If the vehicle becomes stuck ................................... 517
Sun visors ................................ 372

589Alphabetical index
4RUNNER (U)
SwitchesAutomatic High Beam
switch ................................. 230
Cruise control switch............. 272
Door lock switches ................ 113
Driving position memory switches.............................. 149
Emergency flashers switch ... 462
Engine switch................ 209, 212
Fog light switch ..................... 234
Garage door opener
switches.............................. 384
Ignition switch ............... 209, 212
LDA (Lane Departure Alert) switch ................................. 264
Light switches ....................... 225
Moon roof switches ............... 170
Outside rear view mirror switches.............................. 160
Power back window
switch ................................. 166
Power door lock switch ......... 113
Power window switches ........ 162
Rear window and outside rear view mirror defoggers
switch ......................... 342, 349
Rear window wiper and
washer switch ..................... 239
Seat heater switches ............ 355
Seat ventilator switches ........ 355
“SOS” button ........................... 70
Telephone switches
*
VSC OFF switch ................... 322
Window lock switch............... 162
Windshield wipers and washer switch .............. 236 Tachometer ................................ 88
Tail lights.................................. 225
Light switch ........................... 225
Telephone switches
*
Theft deterrent system
Alarm ...................................... 79
Engine immobilizer system ..... 76
Tire inflation pressure............. 436 Maintenance data ................. 528
Warning light......................... 478
Tire information ....................... 533 Glossary ............................... 539
Size....................................... 535
Tire identification number ..... 534
Uniform Tire Quality Grading .............................. 537
Tire pressure warning system.................................... 424 Function ................................ 424
Installing tire pressure warning
valves and transmitters ...... 425
Registering ID codes ............ 426
Warning light......................... 478
T
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

590Alphabetical index
4RUNNER (U)
Tires .......................................... 422Chains................................... 331
Checking ............................... 422
If you have a flat tire ............. 489
Inflation pressure .................. 528
Information ............................ 533
Replacing .............................. 489
Rotating tires......................... 423
Size ....................................... 528
Snow tires ............................. 332
Spare tire .............................. 489
Tire pressure warning
system ......... ....................... 424
Warning light ......................... 478
Tools ......................................... 490
Top tether strap ......................... 66
Total load capacity .................. 191
Towing Dinghy towing ....................... 208
Emergency towing ................ 469
Trailer towing ........................ 192
Toyota Safety Sense P ............ 245 Automatic High Beam ........... 230
Dynamic radar cruise
control................................. 272
LDA (Lane Departure Alert)........ 264
PCS (Pre-Collision System)........ 254 TRAC (Traction Control) ......... 320
Trailer Sway Control ............... 320
Transmission ........................... 218
Trip information ......................... 88
Trip meters ................................. 88
Turn signal lights .................... 223
Replacing light bulbs .... 452, 456
Turn signal lever ................... 223
Wattage ................................ 529
USB port
*
Valet key ................................... 102
Vanity lights ............................. 372 Wattage ................................ 529
Vanity mirrors .......................... 372
Vehicle data recordings .............. 9
Vehicle identification number ................................... 521
Vehicle Stability Control (VSC) ...................................... 320
Ventilators
(seat ventilators) ................... 355
VSC (Vehicle Stability Control) .... 320
U
V

592
4RUNNER (U)
GAS STATION INFORMATION
Auxiliary catch leverFuel filler door
P. 407 P. 244
Hood lock release
leverTire inflation
pressure
P. 407P. 528
Fuel tank capacity
(Reference) 23.0 gal. (87.0 L, 19.1 Imp. gal.)
Fuel type
Unleaded gasoline only P. 242, 522
Cold tire inflation
pressure P. 5 2 8
Engine oil capacity
(Drain and refill —
reference)
P. 5 2 3
Engine oil type
P. 523