2012 TOYOTA TUNDRA battery

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4-1. Maintenance and careCleaning and protecting the vehicle exterior............ 526
Cleaning and protecting the vehicle interior............. 529
4-2. Maintenance Maintenance requirements ..................... 532
General maintenance.......... 534
Emission inspection and maintenance (I/M)
programs........................... 537
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ....................... 538
Hood ................................... 542
Engine compartment ........... 543
Tires .................................... 557
Tire inflation pressure ......... 565
Wheels ................................ 569
Air conditioning filter............ 572
Wireless remote control battery ............................... 575
Checking and replacing fuses ................................. 577
Light bulbs........................... 588 5-1. Essential information
Emergency flashers............ 600
If your vehicle needs to be towed........................... 601
If you think something is wrong ............................... 607
Fuel pump shut off system .............................. 608
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer
sounds... .......................... 609
If a warning message is displayed (vehicles
with multi-information
display) ............................. 619
If you have a flat tire ........... 623
If the engine will not start.... 641
If the shift lever cannot be shifted from P ................... 643
If you lose your keys........... 646
If the vehicle battery is discharged........................ 647
If your vehicle overheats .... 651
If the vehicle becomes stuck ................................. 654
If your vehicle has to be stopped in
an emergency .................. 655
4Maintenance and care5When trouble arises

47
1-2. Opening, closing and locking the doors
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Before driving
■
Wireless remote control battery depletion
The standard battery life is 1 to 2 years. (The battery becomes depleted
even if the wireless remote control is not used.) If the wireless remot\
e control
function does not operate, the battery may be depleted. Replace the battery
when necessary. ( P. 575)
■ If the wireless remote control does not operate
Locking and unlocking the doors: Use the key. ( P. 49)
■ Security feature
If a door is not opened within approximately 60 seconds after the vehicle is
unlocked, the security feature automatically locks the vehicle again.
■ Alarm (if equipped)
Using the wireless remote control to lock the door will set the alarm sy\
stem.
(P. 117)
■ Conditions affecting operation
The wireless remote control function may not operate normally in the follow-
ing situations.
●Near a TV tower, radio station, electr ic power plant, airport or other facil-
ity that generates strong radio waves
● When carrying a portable radio, cell ular phone or other wireless commu-
nication device
● When multiple wireless keys are in the vicinity
● When the wireless key has come into contact with, or is covered by a
metallic object
● When a wireless key (that emits radio waves) is being used nearby
● When the wireless key has been left near an electrical appliance such as
a personal computer
■ When riding in an aircraft
When bringing a wireless remote control onto an aircraft, make sure you do
not press any buttons on the wireless remote control while inside the aircraft
cabin. If you are carrying a wireless remote control in your bag etc, ensure
that the buttons are not likely to be pressed accidentally. Pressing a button
may cause the wireless remote control to emit radio waves that could inter-
fere with the operation of the aircraft.

72 1-3. Adjustable components (seats, mirrors, steering wheel)
■Retained accessory power
Each memorized position (except for the tilt and telescopic steering column)
can be activated within 30 seconds after the driver’s door is opened, even if
the key is not in the engine switch.
■ If any position memory button is pushed while the adjustments are
being made
The operation will stop. To reactivate the system, push the button (“1” or “2”)
again.
■ If the battery is disconnected
The memorized positions must be reset because the computer’s memory is
erased when the battery is disconnected.
CAUTION
■Seat adjustment caution
Take care during seat adjustment that the seat does not strike the rear pas-
senger or squeeze your body against the steering wheel.
If this happens, you can stop the movement by pressing another seat posi-
tion memory button.

107
1-4. Opening and closing the windows and moon roof
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Before driving
■
If the moon roof cannot be closed automatically
Keep the switch depressed.
■ Sunshade
The sunshade can be opened and closed manually. However, the sunshade
will open automatically when the moon roof is opened.
■ Moon roof open reminder function
An alarm will sound when the driver’s door is opened with the moon roof not
fully closed and the engine switch off.
■ When the battery is disconnected
The moon roof must be initialized in order to ensure proper operation.
Push and hold the switch toward the UP (tilt up) side or (sliding
close) side.
After the moon roof will tilt up and down, release the switch.
To ensure the initialization is complete, make sure automatic open-
ing and closing functions work properly.

117
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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.

119
1-6. Theft deterrent system
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Before driving
■
Alarm-operated door lock
●When the alarm is operating, the doors are locked automatically to pre-
vent intruders.
● Do not leave the key inside the vehicle when the alarm is operating, and
make sure the key is not inside the vehicle when recharging or replacing
the battery.
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper
operation of the system cannot be guaranteed.

180 2-1. Driving procedures
NOTICE
■To prevent battery discharge
Do not leave the engine switch in the ACC or ON position for long periods if
the engine is not running.
■ When starting the engine
●Do not crank for more than 30 seconds at a time. This may overheat the
starter and wiring systems.
● Do not race a cold engine.
● If the engine becomes difficult to start or stalls frequently, have the engine
checked immediately.