2012 TOYOTA 4RUNNER engine overheat

628 5-2. Steps to take in an emergency
4RUNNER_U
■Overheating
If you observe the following, your vehicle may be overheating:
● The engine coolant temperature gauge enters the red zone or a loss of
power is experienced.
● Steam comes out from under the hood.
CAUTION
■To prevent an accident or injury when inspecting under the hood of
your vehicle
● If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot, caus-
ing serious injuries such as burns.
● Keep hands and clothing away from the fan and drive belt while the engine
is running.
● Do not loosen the radiator cap, or coolant reservoir cap while the engine
and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
Add engine coolant if neces-
sary.
Water can be used in an emer-
gency if engine coolant is
unavailable.
( P. 639)
Have the vehicle inspected at the nearest Toyota dealer as soon as
possible.
CTH52AS033
STEP 5

688 Alphabetical index
4RUNNER_U
Child safetyAirbag precautions ................128
Battery precautions ....... 534, 626
Child-protectors ....................... 55
Child restraint system............142
How your child should wear the seat belt ..........................89
Installing child restraints ........ 146
Moon roof precautions .......... 108
Power window lock switch....... 98
Power window precautions ...100
Removed key battery precautions .........................554
Seat belt extender precautions ...........................91
Seat belt precautions ..............90
Seat heater precautions ........ 470
Cleaning
Exterior .................................. 502
Interior ...................................505
Seat belts ..............................506
Clock ......................................... 455
Coin holder ............................... 444
Compass ...................................474
Condenser ................................527
Console box ............................. 443
Cooling system Engine overheating ............... 627
Crawl Control ...........................254
Cruise control...........................217
Cup holder ................................448
Curtain shield airbags ............. 121
Customizable features............. 660 Daytime running light
system .................................... 207
Defogger
Rear window ......................... 328
Side mirrors........................... 328
Dimension ................................ 634
Dinghy towing .......................... 311
Display Trip information ..................... 200
Do-it-yourself maintenance .... 516
Door courtesy lights Door courtesy lights .............. 438
Wattage................................. 644
Door lock Back door .......................... 35, 63
Side door........................... 35, 53
Wireless remote control .......... 49
Doors
Back door .......................... 35, 63
Door windows ......................... 98
Side door........................... 35, 53
Side mirrors............................. 96
Downhill assist control system .................................... 251
Driver’s seat belt reminder
light ......................................... 591
Driving Break-in tips .......................... 161
Correct posture ..................... 119
Driving assist systems .......... 266
Off-road precautions ............. 275
Procedures............................ 160
Winter driving tips ................. 288D

689
Alphabetical index
4RUNNER_U
Electronic key
If your electronic key battery is depleted...... 552, 621
Emergency flashers Switch ................................... 578
Emergency, in case of
If the electronic key does not operate properly ........... 621
If the engine will not start...... 616
If the shift lever cannot be
shifted from P ..................... 618
If the vehicle has a
discharged battery ............ 623
If the warning buzzer sounds ............................... 587
If the warning light turns on .............................. 587
If you cannot operate back
door opener........................ 620
If you have a flat tire ............ 603
If you lose your keys............. 619
If you think something is wrong ................................. 585
If your vehicle becomes stuck................................... 630
If your vehicle has to be stopped in an emergency... 631
If your vehicle needs to be
towed ................................. 579
If your vehicle overheats ...... 627
Engine
Compartment........................ 520
Engine switch ............... 170, 173
Hood ..................................... 519
How to start the engine .................. 170, 173
Identification number ............ 635
If the engine will not start...... 616
Ignition switch ............... 170, 173
Overheating .......................... 627 Engine compartment cover.....521
Engine coolant
Capacity ................................639
Checking ...............................526
Preparing and checking before winter .......................288
Engine coolan t temperature
gauge ......................................186
Engine immobilizer system.....113
Engine oil
Capacity ................................637
Checking ...............................522
Preparing and checking before winter .......................288
Engine switch ...................170, 173
Event data recorder ...................26
Floor mat...................................473
Fluid
Brake .....................................528
Power steering ......................530
Washer ..................................535
Fog lights Replacing light bulbs .............565
Switch....................................209
Wattage .................................644
Four-wheel drive
system ............................236, 239
Front passenger occupant classification system ............136
Front passenger’s seat belt reminder light .................591
Front seats
Adjustment ..............................68
Front side marker light Replacing light bulbs .............565
Switch....................................203
Wattage .................................644
Front turn signal lights
Replacing light bulbs .............565
Switch....................................183
Wattage .................................644E
F

692 Alphabetical index
4RUNNER_U
Odometer .................................. 186
Off-road precautions ............... 275
OilEngine oil ..............................522
Opener Fuel filler door ....................... 109
Hood......................................519
Outside rear view mirrors Adjusting and folding ............... 96
Outside temperature display .................................... 457
Overhead console .................... 447
Overheating, Engine ................627
Parking brake ...........................184
Parking lights Replacing light bulbs ............. 565
Switch.................................... 203
Wattage .................................644
Party mode switch ...................380
Pen holder ................................446
Personal lights Switch.................................... 439
Wattage .................................644
Power back window .................101
Power outlets ...................460, 463
Power steering Fluid ......................................530
Power windows ..........................98 Radiator .................................... 527
Radio ......................................... 338
Rear differential lock
system .................................... 248
Rear seats Adjustment .............................. 72
Folding down............... 74, 76, 79
Rear step bumper ...................... 64
Rear turn signal lights Replacing light bulbs ............. 565
Wattage................................. 644
Rear view monitor system ...... 226
Rear window............................. 101
Rear window defogger ............ 328
Rear window wiper .................. 214
Replacing
Fuses .................................... 555
Key battery ............................ 552
Light bulbs............................. 565
Tires ...................................... 603
Reporting safety defects for U.S. owners ...................... 668
Reset the maintenance data ... 509
Roll sensing of curtain shield airbags off switch ...... 134
Roof luggage carrier................ 280O
P
R

696
4RUNNER_U
What to do if...
What to do if...
A tire puncturesP. 603If you have a flat tire
The engine does not start
P. 1 1 3Engine immobilizer system
P. 616If the engine will not start
P. 623If the vehicle battery is discharged
The shift lever cannot be
moved out of PP. 618If the shift lever cannot be shifted
from P
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood
P. 627If your vehicle overheats
The key is lostP. 619If you lose your keys
The battery runs outP. 623If the vehicle battery is discharged
The doors cannot be lockedP. 5 3Side doors
P. 6 3Back door
The horn begins to soundP. 1 1 6Alarm
The vehicle is stuck in mud
or sandP. 630If the vehicle becomes stuck
A warning light or indicator
light comes onP. 587If a warning light turns on or a
warning buzzer sounds