2010 TOYOTA TUNDRA engine overheat

279
2-5. Driving information
2
When driving
●
Crosswinds and rough roads will adversely affect handling of your
vehicle and trailer, causing sway . Periodically check the rear to
prepare for being passed by large trucks or buses, which may
cause your vehicle and trailer to sway. If swaying occurs, firmly grip
the steering wheel, reduce speed immediately but gradually, and
steer straight ahead. Never increase speed. If you make no
extreme correction with the stee ring or brakes, your vehicle and
trailer will stabilize.
● 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.
● In order to maintain engine braking efficiency when driving on a
long steep downgrade, do not use the transmission in D.
Transmission shift range position must be in 5 in the S mode (6-
speed models) or in 4 in the S mode (5-speed models).
● 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. 634)
● Always place wheel blocks under both the vehicle and the trailer
wheels when parking. Apply the parking brake firmly, and put the
transmission in P. Avoid parking on a slope, but if unavoidable, do
so only after performing the following:
Apply the brakes and keep them applied.
Have someone place wheel blocks under both the vehicle and
trailer wheels.
When the wheel blocks are in pl ace, release the brakes slowly
until the blocks absorb the load.
Apply the parking brake firmly.

481
3-8. Other interior features
3
Interior and exterior features
Cigarette lighter
■The cigarette lighter can be used when
The engine switch is in the ACC or ON position.
CAUTION
■To avoid burns or fires
●Do not touch the metal parts of the cigarette lighter.
● Do not hold the cigarette lighter down. It could overheat and cause a fire.
● Do not insert anything other than the cigarette lighter into the outlet.\
Front separated type seats
Push the cigarette lighter in.
The cigarette lighter will pop
out when it is ready for use.
Front bench type seatPush the cigarette lighter in.
The cigarette lighter will pop
out when it is ready for use.

492 3-8. Other 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.

494 3-8. Other 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
583
5-1. Essential informationEmergency flashers ......... 584
If your vehicle needs to be towed ........................ 585
If you think something is wrong ............................. 591
Fuel pump shut off system ........................... 592
Event data recorder ......... 593 5-2. Steps to take in an
emergency
If a warning light turns on or a warning buzzer
sounds... ....................... 595
If a warning message is displayed (vehicles
with multi-information
display) .......................... 604
If you have a flat tire......... 608
If the engine will not start ................................ 625
If the shift lever cannot be shifted from P............ 627
If you lose your keys ........ 630
If the vehicle battery is discharged ..................... 631
If your vehicle overheats ....................... 634
If the vehicle becomes stuck .............................. 637
If your vehicle has to be stopped in
an emergency ................. 638

634
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 fan is operating.
If the fan is operating: Wait until the temperature of the engine (shown on the
instrument cluster) begins to fall and then stop the
engine.
If the fan is not operating: Stop the engine immediately and call your local Toyota
dealer.

636 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 is coming from under the hood.
● “ENGINE COOLANT HOT” is shown on the multi-information display
(vehicles with multi-information display).
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 radiator cap while the engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
NOTICE
■When adding engine coolant
Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too
quickly can cause damage to the engine.

710 Alphabetical index
Compass ................................... 506
Condenser ................................ 535
Console box ............................. 450
Cooling systemEngine overheating ............... 634
CRS ........................................... 143
Cruise control........................... 221
Cup holders .............................. 464
Curtain shield airbags ............. 120
Customizable features..... 206, 684
Daytime running light system .................................... 215
Deck hooks ............................... 498
Defogger Back window ......................... 307
Side mirrors ................... 305, 307
Dimension................................. 640
Dinghy towing .......................... 285
Display Trip information ..................... 204
Warning message ................. 604
Do-it-yourself main tenance..... 523
Doors Door glasses ...........................96
Door lock ...........................44, 48
Open door warning........597, 605
Side doors ...............................47
Side mirrors .............................91
Driver’s seat belt reminder buzzer ............................. 597, 599
Driver’s seat belt reminder light................. 597, 599
Driving
Break-in tips .......................... 175
Correct posture ..................... 118
Driving assist systems........... 243
Procedures ............................ 174
Winter driving tips.................. 260
Driving position memory...........70
DVD player ................................ 386 Emergency flashers................. 584
Emergency flashers switch .... 584
Emergency, in case of
Blown fuse ............................ 560
If the engine will not start ...... 625
If the shift lever cannot be shifted ................................. 627
If the vehicle has
discharged battery .............. 631
If the warning buzzer sounds ................................ 595
If the warning light turns on........................................ 595
If the warning message
is displayed ......................... 604
If you have a flat tire ............. 608
If you lose your keys ............. 630
If you think something is wrong .............................. 591
If your vehicle becomes
stuck ................................... 637
If your vehicle has to be stopped in an emergency ... 638
If your vehicle needs to be towed ............................. 585
If your vehicle overheats ....... 634
Engine Compartment ........................ 528
Engine switch ........................ 183
Exhaust gas .......................... 180
Hood ..................................... 527
How to start the engine ................................. 183
Identification number............. 654
If the engine will not start ...... 625
Ignition switch ...................... 183
Immobilizer system ............... 114
Overheating .......................... 634
Warning light ......................... 596
Engine coolant Capacity ................................ 661
Checking ............................... 534
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