2021 TOYOTA 4RUNNER open hood

5157-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)
Add engine coolant if neces-
sary. (P. 409)
Water can be used in an emer-
gency if engine coolant is unavail-
able.
Start the engine to check that the radiator cooling fan operate and
to check for coolant leaks from the radiator or hoses.
If the fan are not operating:
Stop the engine immediately and contact your Toyota dealer.
If the fan are operating:
Have the vehicle ins pected at the nearest Toyota dealer.
5
WARNING
■When inspecting under th e hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
● If steam is seen coming from under the hood, do not open the ho od until
the steam has subsided. The engine compartment may be very hot.
● Keep hands and clothing (especially a tie, a scarf or a muffler ) away from
the fans and belts.
6
7
● Do not loosen the radiator cap and the
coolant reservoir cap while the engine
and radiator are hot.
High temperature steam or coolant
could spray out.

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

583Alphabetical index
4RUNNER (U)
Front passenger occupant classification system .............. 46
Front personal lights ............... 358
Front seats ............................... 136 Adjustment ............................ 136
Cleaning................................ 395
Correct driving posture ........... 28
Driving position memory ....... 149
Head restraints ..................... 153
Seat heaters ......................... 355
Seat position memory ........... 149
Seat ventilators ..................... 355
Front side marker lights.......... 225 Light switch ........................... 225
Replacing light bulbs............. 454
Wattage ................................ 529
Front turn signal lights ........... 223
Replacing light bulbs............. 452
Turn signal lever ................... 223
Wattage ................................ 529
Fuel ........................................... 242 Capacity ................................ 522
Fuel gauge .............................. 88
Fuel pump shut off system.... 473
Information ............................ 530
Refueling............................... 242
Type .............................. 242, 522
Warning light ......................... 477
Fuel filler door.......................... 242 Refueling............................... 242
Fuel pump shut off system ..... 473
Fuses ........................................ 446
Garage door opener ................ 384
Gauges ....................................... 88
Glove box ................................. 361
Grocery bag hooks .................. 370 Head restraints ........................ 153
Headlights ................................ 225
Automatic High Beam system .......... ...................... 230
Light switch ........................... 225
Replacing light bulbs .... 451, 459
Wattage ................................ 529
Heaters Air conditioning system ....... ................. 340, 347
Outside rear view mirrors ....................... 342, 349
Seat heaters ......................... 355
Hill-start assist control ........... 321
Hood ......................................... 407
Hooks Cargo hooks ......................... 367
Cargo net hooks ................... 368
Grocery bag hooks ............... 370
Retaining hooks (floor mat) .... 26
Horn .......................................... 156
G
H

586Alphabetical index
4RUNNER (U)
Multi Terrain ABS .................... 320
Multi-information display .......... 90Driving information .................. 93
Dynamic radar cruise control................................. 272
Language .............................. 555
LDA (Lane Departure Alert)........ 264
Outside temperature ............... 97
PCS (Pre-Collision System)........ 254
Settings ................................... 96
Warning messages ............... 484
Multi-terrain Select .................. 313
Navigation system
*
Noise from under vehicle............ 8
Odometer.................................... 88
Off-road precaution s ............... 333
Oil Engine oil .............................. 410
Opener Back door.............................. 132
Hood ..................................... 407
Outer foot lights....................... 357
Outside rear view mirrors ....... 160
Adjusting and folding ............ 160
Outside rear view mirror defoggers ......... 342, 349
Outside temperature display ...................................... 97
Overhead console ................... 364
Overheating, Engine................ 514 Parking brake........................... 224
Operation .............................. 224
Parking brake engaged warning buzzer ................... 474
PCS (Pre-Collision System).......... 254 Warning light......................... 214
Parking lights........................... 225 Light switch ........................... 225
Replacing light bulbs ............ 452
Wattage ................................ 529
Pen holder ................................ 365
Personal lights......................... 358
Power back window ................ 166 Jam protection function ........ 168
Operation .............................. 166
Power outlets ................... 374, 378
Power steering Fluid ...................................... 416
Warning light......................... 476
Power windows ....................... 162 Door lock linked
window operation ............... 164
Jam protection function ........ 163
Operation .............................. 162
Window lock switch .............. 162
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