2012 TOYOTA TUNDRA open hood

117
1
1-6. Theft deterrent system
Before driving
Alarm
: If equipped
The system sounds the alarm and flashes lights when forcible entry
is detected.
■ Triggering of the alarm
The alarm is triggered in the fo llowing situations when the alarm
is set.
● A locked door is unlocked or opened in any way other than
using the wireless remote control door lock function or key.
(The doors will lock again automatically.)
● The hood is opened.
● Vehicles with the glass breakage sensor (if equipped): The
side windows are tapped or broken.
● The battery is reconnected.
■ Setting the alarm system
Close the doors and hood,
and lock all the doors. The
system will be set automati-
cally after 30 seconds.
The indicator light changes
from being on to flashing when
the system is set.
■Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarm.
●Unlock the doors.
● Turn the engine switch to the ACC or ON position, or start the
engine.
(The alarm will be deactivated or stopped after a few sec-
onds.)

118 1-6. Theft deterrent system
■System maintenance
The vehicle has a maintenance-free type alarm system.
■ Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure
of the following.
●Nobody is in the vehicle.
● The windows and moon roof are closed before the alarm is set.
● No valuables or other personal items are left in the vehicle.
■ Triggering of the alarm
The alarm may be triggered in the following situations.
(Stopping the alarm deactivates the alarm system.)
■ Panic mode
P. 4 6
■ When the battery is disconnected
Be sure to cancel the alarm system.
If the battery is discharged before canceling the alarm, the system may be
triggered when the battery is reconnected.
●A person inside the vehicle opens a
door or hood.
● The battery is recharged or replaced
when the vehicle is locked.

523
3-8. Other interior features
3
Interior and exterior features
■
Circling calibration
When “C” appears on the dis-
play, drive the vehicle at 5 mph
(8 km/h) or less in a circle until a
direction is displayed.
If there is not enough space to
drive in a circle, drive around the
block until the direction is dis-
played.
■Conditions unfavorable to correct operation
The compass may not show the correct direction in the following conditions:
●The vehicle is stopped immediately after turning.
● The vehicle is on an inclined surface.
● The vehicle is in a place where the earth’s magnetic field is subject to
interference by artificial magnetic fields (underground car park/parking
lot, under a steel tower, between buildings, roof car park/parking lot, near
an intersection, near a large vehicle, etc.).
● The vehicle has become magnetized.
(There is a magnet or metal object near the inside rear view mirror.)
● The battery has been disconnected.
● A door is open.
CAUTION
■While driving the vehicle
Do not adjust the display. Be sure to adjust the display only when the vehicle
is stopped.
■ When doing the circling calibration
Be sure to secure a wide space, and watch out for people and vehicles in the
neighborhood. Do not violate any local traffic rules while performing circling
calibration.

542
4-3. Do-it-yourself maintenance
Hood
CAUTION
■Pre-driving check
Check that the hood is fully closed and locked.
If the hood is not locked properly, it may open while the vehicle is in motion
and cause an accident, which may result in death or serious injury.
Release the lock from the inside of the vehicle to open the hood.
Pull the hood lock release
lever.
The hood will pop up slightly.
Pull up the hood catch lever
and lift the hood.

5
When trouble arises
653
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.

732 Alphabetical index
Condenser ................................ 550
Console box ............................. 465
Cooling systemEngine overheating ............... 651
CRS ........................................... 140
Cruise control........................... 223
Cup holders .............................. 478
Curtain shield airbags ............. 122
Customizable features..... 203, 696
Daytime running light
system .................................... 213
Deck hooks ............................... 510
Defogger
Back window ......................... 317
Side mirrors ................... 315, 317
Dimensions............................... 658
Dinghy towing .......................... 294
Display Trip information ..................... 200
Warning message ................. 619
Do-it-yourself main tenance..... 538
Doors Door glasses ...........................96
Door lock ...........................46, 49
Open door warning........611, 620
Side doors ...............................49
Side mirrors .............................91
Driver’s seat belt reminder buzzer ..................................... 611
Driver’s seat belt
reminder light......................... 611
Driving Break-in tips .......................... 169
Correct posture ..................... 120
Driving assist systems........... 249
Procedures ............................ 168
Winter driving tips.................. 267
Driving position memory...........70
DVD player ................................ 399 Emergency flashers................. 600
Emergency flashers switch .... 600
Emergency, in case of
Blown fuse ............................ 577
If the engine will not start ...... 641
If the shift lever cannot be shifted ................................. 643
If the vehicle has
discharged battery .............. 647
If the warning buzzer sounds ................................ 609
If the warning light turns on........................................ 609
If the warning message
is displayed ......................... 619
If you have a flat tire ............. 623
If you lose your keys ............. 646
If you think something is wrong .............................. 607
If your vehicle becomes
stuck ................................... 654
If your vehicle has to be stopped in an emergency ... 655
If your vehicle needs to be towed ............................. 601
If your vehicle overheats ....... 651
Engine Compartment ........................ 543
Engine switch ........................ 178
Exhaust gas .......................... 174
Hood ..................................... 542
How to start the engine ................................. 178
Identification number............. 668
If the engine will not start ...... 641
Ignition switch ...................... 178
Immobilizer system ............... 115
Overheating .......................... 651
Warning light ......................... 610
Engine coolant Capacity ................................ 673
Checking ............................... 549
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735
Alphabetical index
Maintenance
Do-it-yourself
maintenance ...................... 538
General maintenance ........... 534
Maintenance data ................. 658
Maintenance requirements ... 532
Vehicle exterior..................... 526
Vehicle interior...................... 529
Maintenance data .................... 533
Malfunction indicator lamp .... 610
Manual air conditioning system ................................... 307
Manual headlight leveling dial.......................................... 212
Master warning light ....... 611, 619
Map holder ............................... 470
Meter Accessory meter................... 207
Instrument panel light control ................................ 194
Meters .................................. 189
Mirrors Inside rear view mirror ............ 88
Side mirror heaters ....... 315, 317
Side mirrors ............................ 91
Vanity mirrors ....................... 489
Moon roof................................. 105
MP3 disc................................... 341
Multi-information display ................................... 200
Noise from under vehicle ......... 36
Odometer ................................. 189
Off-road precautions............... 257
Oil Engine oil.............................. 545
Warning light ................ 609, 611
Opener
Hood ..................................... 542
Outside rear view mirrors Adjusting and folding .............. 91 Outside temperature
display ....................................491
Overhead console ....................477
Overheating, Engine ................651
Parking assist...........................227
Parking brake ...........................187
Parking lights Replacing light bulbs .............591
Switch....................................210
Wattage .................................680
Pen holder ................................473
Personal lights Switch....................................457
Wattage .................................680
Power back window .................102
Power outlet .....................493, 498
Power steering Fluid ..............................552, 677
Power windows ..........................96
Radiator ....................................550
Radio .........................................324
Rear seat Adjustment ..............................65
Folding down ...........................67
Raising the bottom cushion .....66
Rear seat entertainment system ....................................390
Rear seat entertainment
system controller battery......396
Rear side marker lights Replacing light bulbs .............594
Switch....................................210
Rear seat adjustment.................65
Rear seat adjustment precautions ..............................68
Rear turn signal lights Replacing light bulbs .............594
Switch....................................186
Wattage .................................680M
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