2010 TOYOTA 4RUNNER engine overheat

604 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. 616)
Have the vehicle inspected at the nearest Toyota dealer as soon as
possible.
CTH52AS033
STEP 6

654 Alphabetical index
4RUNNER_U
Clock ......................................... 431
Coin holder ............................... 419
Compass ...................................450
Condenser ................................504
Console box ............................. 418
Cooling systemEngine overheating ............... 603
Crawl Control ...........................241
Cruise control...........................209
Cup holder ................................423
Curtain shield airbags ............. 114
Customizable features............. 638
Daytime running light system .................................... 202
Defogger Rear window .........................310
Side mirrors ...........................310
Dimension.................................610
Dinghy towing .......................... 293
Display Trip information ..................... 195
Do-it-yourself main tenance..... 491
Door courtesy lights
Door courtesy lights ..............413
Wattage .................................622
Door lock
Back door ..........................33, 56
Side door ........................... 33, 51
Wireless remote control .......... 47
Doors Back door ..........................33, 56
Door glasses ...........................91
Side door ........................... 33, 51
Side mirrors .............................89
Downhill assist control
system .................................... 238
Driver’s seat belt reminder light ......................................... 568 Driving
Break-in tips .......................... 155
Correct posture ..................... 112
Driving assist systems .......... 253
Off-road precautions ............. 262
Procedures............................ 154
Winter driving tips ................. 275
Electronic key If your electronic key battery is depleted ...... 528, 596
Emergency flashers Switch ................................... 554
Emergency, in case of
If the electronic key does not operate properly ........... 596
If the engine will not start ...... 590
If the shift lever cannot be
shifted from P ..................... 592
If the vehicle has a discharged battery ............. 598
If the warning buzzer sounds ................................ 565
If the warning light turns on ... 565
If you cannot operate back
door opener ........................ 595
If you have a flat tire ............. 578
If you lose your keys ............. 594
If you think something is wrong .................................. 561
If your vehicle becomes stuck ................................... 606
If your vehicle needs to be
towed .................................. 555
If your vehicle overheats ....... 603
D
E

655
Alphabetical index
4RUNNER_U
Engine
Compartment........................ 495
Engine switch ............... 164, 167
Hood ..................................... 494
How to start the engine .................. 164, 167
Identification number ............ 611
If the engine will not start...... 590
Ignition switch ............... 164, 167
Overheating .......................... 603
Engine compartment cover .... 497
Engine coolant Capacity ............................... 616
Checking .............................. 503
Preparing and checking before winter ...................... 275
Engine coolan t temperature
gauge ..................................... 182
Engine immobilizer system .... 106
Engine oil Capacity ............................... 614
Checking .............................. 498
Preparing and checking before winter ...................... 275
Engine oil maintenance
data ........................................ 501
Engine switch .................. 164, 167
Event data recorder ................ 563 Floor mat...................................449
Fluid
Brake .....................................505
Power steering ......................507
Washer ..................................512
Fog lights
Replacing light bulbs .............541
Switch....................................204
Wattage .................................622
Four-wheel drive system ............................223, 226
Front passenger occupant
classification system ............129
Front passenger’s seat belt reminder light .................568
Front seats Adjustment ..............................61
Front side marker light
Replacing light bulbs .............541
Switch....................................198
Wattage .................................622
Front turn signal lights
Replacing light bulbs .............541
Switch....................................179
Wattage .................................622
Fuel Capacity ................................613
Fuel gauge ............................182
Fuel pump shut off system ....562
Gas station information .........664
Information ............................623
Refueling ...............................102
Type ......................................613
Fuel door...................................102
Fuel filler door ..........................102
Fuel pump shut off system ....................................562
Fuses.........................................531F

657
Alphabetical index
4RUNNER_U
Lights
Door courtesy lights.............. 413
Emergency flasher switch .... 554
Engine switch light................ 413
Fog light switch..................... 204
Footwell lights....................... 413
Hazard light switch ............... 554
Headlight switch ................... 198
Inside door handle lights ...... 413
Interior light switch................ 414
Luggage compartment lights..................................... 57
Outer foot lights .................... 413
Personal light switch............. 414
Replacing light bulbs ............ 541
Shift lever light ...................... 413
Turn signal lever ................... 179
Vanity lights .......................... 430
Wattage ................................ 622
Limited slip differential ........... 253
Load capacity .......................... 273
Lock steering column ..... 165, 170
Luggage compartment features .................................. 456
Maintenance Do-it-yourself
maintenance ...................... 491
General maintenance ........... 486
Maintenance data ................. 610
Maintenance requirements ... 484
Manual air conditioning system ................................... 296
Meter Accessory meter................... 194
Instrument panel light control ................................ 187
Meters .................................. 182 Mirrors
Inside rear view mirror.............87
Side mirror heaters................310
Side mirrors .............................89
Vanity mirrors ........................430
Moon roof ...................................98
MP3 disc ...................................333
Multi Terrain ABS .....................253
Multi-terrain Select...................245
Noise from under vehicle ..........24
Odometer ..................................182
Off-road precautions ...............262
Oil Engine oil ..............................498
Opener Fuel filler door .......................102
Hood......................................494
Outside rear view mirrors
Adjusting and folding ...............89
Outside temperature display ....................................433
Overhead console ....................422
Overheating, Engine ................603
Parking brake ...........................180
Parking lights Replacing light bulbs .............541
Switch....................................198
Wattage .................................622
Party mode switch ...................359
Pen holder ................................421
Personal lights Switch....................................414
Wattage .................................622
Power back window ...................94
Power outlets ...................436, 439
Power steering Fluid ......................................507
Power windows ..........................91
M
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661
4RUNNER_U
What to do if...
What to do if...
A tire puncturesP. 578If you have a flat tire
The engine does not start
P. 106Engine immobilizer system
P. 590If the engine will not start
P. 598If the battery is discharged
The shift lever cannot be
moved out of PP. 592If 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. 603If your vehicle overheats
The key is lostP. 594If you lose your keys
The battery runs outP. 598If the battery is depleted
The doors cannot be lockedP. 5 1Side doors
P. 5 6Back door
The horn begins to soundP. 109Alarm
The vehicle is stuck in mud
or sandP. 606If the vehicle becomes stuck
A warning light or indicator
light comes onP. 565If the warning light turns on