2012 TOYOTA HIGHLANDER engine overheat

257
2-5. Driving information
2
When driving
●
Avoid jerky starts or sudden acceleration.
● Avoid jerky steering and sharp turns, and slow down before mak-
ing a turn.
● Note that when making a turn, th e trailer wheels will be closer than
the vehicle wheels to the inside of the turn. Compensate by making
a wider than normal turning radius.
● Slow down before making a turn, in cross winds, on wet or slippery
surfaces, etc.
Increasing vehicle speed can destabilize the trailer.
● Take care when passing other vehicles. Passing requires consider-
able distance. After passing a vehicle, do not forget the length of
your trailer, and be sure you hav e plenty of room before changing
lanes.
● To maintain engine braking efficiency and charging system perfor-
mance when using engine braking, do not put the transmission in
D.
● Instability happens more frequently when descending steep or long
downhill grades. Before descending, slow down and downshift. Do
not make sudden downshifts while descending steep or long down-
hill grades.
● Avoid holding the brake pedal down too long or applying the
brakes too frequently. This could cause the brakes to overheat and
result in reduced braking efficiency.
● Due to the added load of the trailer, your vehicle’s engine may
overheat on hot days (at temperatures over 85°F [30°C]) when
driving up a long or steep grade. If the engine coolant temperature
gauge indicates overheating, immedi ately turn off the air condition-
ing (if in use), pull your vehicle off the road and stop in a safe spot.
(  P. 564)

421
3-7. Other interior features
3
Interior features
CAUTION
■
Burns
●Use caution when seating the following persons in a seat with the seat
heater on to avoid the possibility of burns:
• Babies, small children, the elderly, the sick and the disabled
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping
drugs, cold remedies, etc.)
● Do not cover the seat with anything when using the seat heater.
Using the seat heater with a blanket or cushion increases the temperature
of the seat and may lead to overheating.
NOTICE
■To prevent seat heater damage
Do not put unevenly weighted objects on the seat and do not stick sharp
objects (needles, nails, etc.) into the seat.
■ To prevent battery discharge
Turn the switches off when the engine is not running.

When trouble arises5
517
5-1. Essential informationEmergency flashers ......... 518
If your vehicle needs to be towed ........................ 519
If you think something is wrong ............................. 526
Fuel pump shut off system ........................... 527
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds... ....................... 528
If a warning message is displayed........................ 539
If you have a flat tire......... 540
If the engine will not start ................................ 554
If the shift lever cannot be shifted from P............ 556
If you lose your keys/ wireless remote control
transmitter ...................... 557 If the electronic key does
not operate properly....... 558
If the battery is discharged ..................... 560
If your vehicle overheats ....................... 564
If the vehicle becomes stuck .............................. 567
If your vehicle has to be stopped in an
emergency ..................... 569

564
5-2. Steps to take in an emergency
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the air condi-
tioning system.
Check to see if steam is coming out from under the hood.
If you see steam: Stop the engine. Carefully lift the hood after the steam
subsides and then restart the engine.
If you do not see steam: Leave the engine running and carefully lift the hood.
Check to see if the cooling fans are operating.
If the fans are operating: Wait until the temperature of the engine (shown on the
instrument cluster) begins to fall and then stop the
engine.
If the fans are not operating: Stop the engine and call your Toyota dealer.
After the engine has cooled
down sufficiently, check the
engine coolant level and
inspect the radiator core (radi-
ator) for any leaks.
If the engine compartment
cover needs to be removed.
(P. 465)
Engine coolant reservoir
Radiator
STEP1
STEP2
STEP3
STEP4

5
When trouble arises
565
5-2. Steps to take in an emergency
■
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 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 injury such as burns.
● Keep hands and clothing away from the fan and other belts while the
engine is running.
● Do not loosen the 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. 580)
Have the vehicle chec ked at the nearest Toyota dealer as soon as
possible.
STEP5

626 Alphabetical index
Child-protectors .........................56
CleaningExterior .................................. 440
Interior ................................... 443
Seat belts .............................. 444
Clock ................................. 191, 414
Compass ................................... 435
Condenser ................................ 471
Console box ............................. 401
Conversation mirror ................415
Cooling system Engine overheating ............... 564
Cruise control........................... 215
Cup holders .............................. 403
Curtain shield airbags ............. 123
Customizable features............. 602 Daytime running light
system .................................... 204
Defogger Rear window ......................... 289
Side mirrors........................... 289
Dimension ................................ 572
Dinghy towing .......................... 265
Display Trip information ..................... 191
Warning message ................. 539
Do-it-yourself maintenance .... 453
Door courtesy lights
Door courtesy lights .............. 396
Wattage................................. 586
Doors Door lock ..................... 35, 48, 54
Door windows ....................... 101
Side mirrors............................. 98
Downhill assist control system .................................... 230
Driver's seat belt reminder light ......................................... 531
Driving
Break-in tips .......................... 161
Correct posture ..................... 121
Procedures............................ 160
Winter driving tips ................. 243D

627
Alphabetical index
Electric power steering........... 223
Electronic key
If your electronic key battery is discharged .......... 558
Emergency flashers
Switch ................................... 518
Emergency, in case of If a warning message is
displayed ............................ 539
If the back door opener is inoperative ........................... 63
If the electronic key does not operate properly ........... 558
If the engine will not start...... 554
If the shift lever cannot be
shifted from P ..................... 556
If the vehicle has a
discharged battery ............. 560
If the warning buzzer sounds... ........................... 528
If the warning light turns on ....................................... 528
If you have a flat tire ............ 540
If you lose your keys/
wireless remote control
transmitter .......................... 557
If you think something is wrong ................................. 526
If your vehicle becomes
stuck................................... 567
If your vehicle has to be stopped in an
emergency ......................... 569
If your vehicle needs to be towed ................................. 519
If your vehicle overheats ...... 564 Engine
Compartment ........................463
Engine switch ................170, 174
Hood......................................457
How to start the
engine .........................170, 174
Identification number .............573
If the engine will not start ......554
Ignition switch................170, 174
Overheating...........................564
Engine compartment cover.....465
Engine coolant
Capacity ................................580
Checking ...............................469
Preparing and checking before winter .......................243
Engine coolan t temperature
gauge ......................................185
Engine immobilizer system.....113
Engine oil Capacity ................................576
Checking ...............................466
Preparing and checking before winter .......................243
Enhanced vehicle stability control ....................................223
Enhanced VSC .........................223
EPS ............................................223
Event data recorder ...................26E

629
Alphabetical index
Jack
Positioning a floor jack ......... 459
Vehicle-equipped jack .......... 540
Jack handle.............................. 540
Keyless entry ............................. 48
Keys Electronic key ......................... 32
Engine switch ............... 170, 174
If the electronic key does not operate properly ........... 558
If you lose your keys/ wireless remote control
transmitter .......................... 557
Ignition switch ............... 170, 174
Key number ............................ 32
Keyless entry .......................... 48
Keys ....................................... 32
Mechanical key....................... 32
Wireless remote control key ....................................... 48
License plate lights Replacing light bulbs ............ 510
Wattage ................................ 586
Light bulbs Replacing ............................. 510
Wattage ................................ 586
Lights Door courtesy lights.............. 396
Emergency flasher switch .... 518
Fog light switch..................... 206
Hazard light switch ............... 518
Headlight switch ................... 200
Interior light switch........ 397, 398
Outer foot lights .................... 396
Personal light switch............. 397
Replacing light bulbs ............ 510
Turn signal lever ................... 182
Vanity lights .......................... 413
Wattage ................................ 586
Load capacity .......................... 242 Lock steering column ......172, 175
Luggage cover .........................425
Maintenance
Do-it-yourself maintenance .......................453
General maintenance ............449
Maintenance data..................572
Maintenance requirements....446
Maintenance data .....................447
Meter
Instrument panel light control .................................186
Meters ...................................185
Mirrors Conversation mirror...............415
Inside rear view mirror.............95
Side mirror heaters................289
Side mirrors .............................98
Vanity mirrors ........................413
Moon roof .................................104
MP3 disc ...................................312
Multi-information display ....................................191
Noise from under vehicle ..........24
Odometer ..................................185
Off-road precautions ...............233
Oil Engine oil ..............................466
Opener
Back door ................................60
Fuel filler door .......................109
Glass hatch .............................70
Hood......................................457
Outside rear view mirrors Adjusting and folding ...............98
Outside temperature display ....................................191
Overhead console ....................402
Overheating, Engine ................564J
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