2015 TOYOTA TUNDRA engine overheat

2294-5. Using the driving support systems
4
Driving
If the rear wheels spin, the slip
indicator flashes to indicate that
the AUTO LSD system has con-
trolled the spinning of the rear
wheels.
■If the engine is turned off and restarted
The AUTO LSD system and the indicators are automatically turned off.
■ If the brake system overheats
The AUTO LSD system will cease operation, and the slip indicator will
change from flashing to being on continuously to alert the driver. Stop the
vehicle in a safe place. (There is no problem with continuing normal driving.)
The system will be automatically restored after a short time.
When the AUTO LSD system is operating
CAUTION
■To avoid an accident
● Do not use the AUTO LSD system in conditions other than the above.
A much greater steering effort and more careful cornering control will be
required.
● Do not drive with the AUTO LSD system continuously turned on.

3516-1. Using the air conditioning system
6
Interior features
■Seat ventilators
Blows air from the seat Hi
Mid
Lo
Off
The level indicator lights come on.
Pressing the button changes
modes in the following:
HiMid LoOff
■The seat heaters/seat ventilators can be used when
The engine switch is in the “ON” position.
■ Passenger seat ventilator timer (vehicles with seat ventilators)
●The ventilator operates on for 5 minutes after the button is pressed.
● When the passenger is not detected, the automatically turns off the ventila-
tor after 5 minutes.
■ When not in use
Turn the seat heaters or seat ventilators off by pressing the button. The indi-
cator light turns off.
1
2
3
4
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 physically chal-
lenged
• 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.
● Do not use seat heater more than necessary. Doing so may cause minor
burns or overheating.

455
8When trouble arises
8-1. Essential informationEmergency flashers .......... 456
If your vehicle has to be stopped in
an emergency ................. 457 8-2. Steps to take in an emergency
If your vehicle needs to be towed ......................... 458
If you think something is wrong .............................. 463
Fuel pump shut off system ............................ 464
If a warning light turns on or a warning buzzer
sounds ............................ 465
If a warning message is displayed......................... 472
If you have a flat tire.......... 476
If the engine will not start ................................. 491
If the shift lever cannot be shifted from P............. 492
If the vehicle battery is discharged ...................... 494
If your vehicle overheats ... 497
If the vehicle becomes stuck ............................... 499

497
8
When trouble arises
8-2. Steps to take in an emergency
If your vehicle overheats
●The needle of the engine coolant temperature gauge ( P. 8 8 )
enters the red zone or a loss of engine power is experienced. (For
example, the vehicle sp eed does not increase.)
● “ENGINE COOLANT OVERTEMP” is shown on the multi-informa-
tion display.
● Steam comes out from under the hood.
Stop the vehicle in a safe place and turn off the air conditioning
system, and then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled
down sufficient ly, inspect the
hoses and radiator core
(radiator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant
leaks, immediately contact your
Toyota dealer.
The coolant level is satisfac-
tory if it is between the
“FULL” and “LOW” lines on
the reservoir.Reservoir
“FULL”
“LOW”
Radiator cap
The following may indicate that your vehicle is overheating:
Correction procedures
1
2
3
1
2
4
1
2
3
4

567Alphabetical index
Power window precautions ... 136
Rear door child-protector ...... 104
Removed wireless remote control battery
precautions ......................... 434
Seat belt extender precautions ........................... 37
Seat belt precautions .............. 59
Seat heater precautions........ 351
Child-protectors....................... 104
Cleaning ........................... 392, 394
Aluminum wheels.................. 392
Exterior ................................. 392
Interior................................... 394
Seat belts .............................. 395
Clock ......................................... 375
Compass .................................. 387
Condenser ................................ 411
Console box ............................. 359
Consumption screen ................. 91
Coolant ..................................... 409 Capacity ................................ 514
Checking ............................... 409
Preparing and checking before winter....................... 240
Cooling system ........................ 409 Engine overheating ............... 497
CRS ............................................. 56
Cruise control .......................... 199
Cup holders.............................. 366
Curtain shield airbags ............... 39
Customizable features ............ 534
Daytime running light
system .................................... 190
Deck hooks .............................. 373
Defogger
Back window ................. 338, 345
Outside rear view mirrors ........................ 338, 345
Windshield .................... 338, 345
Differential ................................ 515 Dimensions .............................. 502
Dinghy towing.......................... 178
Display
Multi-information display ......... 90
Trip information....................... 91
Warning message................. 472
Do-it-yourself maintenance .... 403
Doors ........................................ 100
Automatic door locking and unlocking system......... 104
Door glasses......................... 134
Door lock .............................. 103
Open door warning light ....... 466
Open door warning message............................. 473
Outside rear view mirrors ..... 130
Rear door child-protector ...... 104
Side doors ............................ 100
Driver’s seat position
memory .................................. 116
Driving ...................................... 146 Break-in tips.......................... 147
Correct driving posture ........... 30
Driving assist system ............ 230
Procedures ........................... 146
Winter drive tips .................... 240
EDR (Event data recorder)........ 10
Emergency, in case of If the engine will not start ...... 491
If the shift lever
cannot be shifted from P .... 492
If the vehicle has discharged
battery ................................ 494
If the warning buzzer sounds................................ 465
If the warning light turns on ....................................... 465
If the warning message
is displayed ........................ 472
If you have a flat tire ............. 476
If you lose your keys ............... 98
D
E

568Alphabetical index
If you think something is wrong .............................. 463
If your vehicle becomes
stuck ................................... 499
If your vehicle has to be stopped in an emergency ... 457
If your vehicle needs
to be towed ......................... 458
If your vehicle overheats ....... 497
Emergency flashers ................ 456
Engine
“ACC” position ...................... 179
Compartment ........................ 406
Engine switch........................ 179
Hood ..................................... 405
How to start the engine ......... 179
Identification number ............ 510
If the engine will not start ...... 491
Ignition switch (engine switch) ................... 179
Immobilizer system ................. 78
Overheating .......................... 497
Engine coolant ......................... 409 Capacity ................................ 514
Checking ............................... 409
Preparing and checking before winter....................... 240
Engine coolant temperature
gauge........................................ 88
Engine immobilizer system ...... 78
Engine oil ................................. 407 Capacity ................................ 512
Checking ............................... 407
Preparing and checking before winter....................... 240
Engine oil maintenance data ......................................... 398
Engine switch (ignition switch)..................... 179
Engine switch light
(ignition switch light) ............ 353
Event data recorder (EDR) ........ 10 FFV.................................... 195, 520
Flat tire ..................................... 476
Flex-fuel............................ 195, 520
Flexible fuel vehicle ........ 195, 520
Floor mats .................................. 28
Fluid
Automatic transmission ........ 516
Brake .................................... 517
Washer ................................. 415
Fog lights ................................. 191
Replacing light bulbs ............ 446
Switch ................................... 191
Wattage ................................ 519
Foot well light .......................... 353
Four-wheel drive system ........ 225
Front passenger occupant classification system .............. 50
Front personal lights............... 354
Front seats ............................... 111 Adjustment............................ 111
Cleaning ............................... 394
Correct driving posture ........... 30
Driving position memory ....... 116
Head restraints ..................... 120
Power easy access system .......... ...................... 116
Seat heaters ......................... 350
Seat position memory ........... 116
Seat ventilators ..................... 350
Front side marker lights Light switch ........................... 188
Replacing light bulbs ............ 444
Wattage ................................ 519
Front turn signal lights
Replacing light bulbs ............ 443
Turn signal lever ................... 186
Wattage ................................ 519
Fuel ........................................... 511 Capacity................................ 511
Fuel gauge.............................. 88
Fuel pump shut off system ... 464
Gas station information......... 576F

571Alphabetical index
Noise from under vehicle............ 8
Odometer.................................... 90
Off-road precautions ............... 244
Oil Engine oil .............................. 512
Differential oil ........................ 515
Transfer oil ............................ 516
Opener
Hood ..................................... 405
Outer foot lights Location ................................ 353
Replacing light bulbs............. 451
Wattage ................................ 519
Outside rear view mirrors ....... 130
Adjusting and folding ............ 130
Blind spot monitor ................. 217
Mirror position memory ......... 116
Outside rear view mirror defoggers ......... 338, 345
Outside temperature
display .................................... 376
Overhead console ................... 365
Overheating.............................. 497
Parking assist sensors (intuitive parking assist) ....... 202
Parking brake ........................... 187 Operation .............................. 187
Parking brake engaged
warning buzzer ................... 465
Parking brake engaged
warning message ............... 473
Parking lights ........................... 188 Light switch ........................... 188
Replacing light bulbs..... 443, 451
Wattage ................................ 519
Pen holder ................................ 363
Personal lights ......................... 354
Light switch ........................... 354 Wattage ................................ 519
Power back window ................ 138
Power easy access system .... 116
Power outlets ........................... 377
Power steering fluid ................ 412
Power windows ....................... 134 Jam protection function ........ 135
Operation .............................. 134
Window lock switch .............. 134
Radiator .................................... 411
Radio ........................................ 267
Rear personal lights ................ 354
Rear seat Adjustment precautions ........ 115
Child seats/child restraint
system installation ................ 60
Cleaning ............................... 394
Head restraints ..................... 120
Raising the bottom cushion ............................... 114
Rear side marker lights........... 188 Light switch ........................... 188
Replacing light bulbs ............ 449
Wattage ................................ 519
Rear step bumper .................... 110
Rear turn signal lights ............ 186 Replacing light bulbs ............ 449
Turn signal lever ................... 186
Wattage ................................ 519
Rear view mirror Inside rear view mirror .......... 127
Outside rear view mirrors ..... 130
Rear view monitor system ...... 208
Refueling .................................. 195 Capacity................................ 511
Fuel types ............................. 511
Opening the fuel tank cap..... 197
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