2018 TOYOTA TUNDRA ECU

831-2. Theft deterrent system
1
For safety and security

851-2. Theft deterrent system
1
For safety and security
Alar m
The alarm uses light and sound to give an alert when an intrusion is
detected.
The alarm is triggered in the following situations when the ala rm is
set:
● A locked door is unlocked or opened in any way other than using a
key or wireless remote control. (The doors will lock again automati-
cally.)
● The hood is opened.
● Vehicles with the glass breaka ge sensor: The side windows are
tapped or broken.
Close the doors and hood, and
lock all the doors. The system will
be set automatically after 30 sec-
onds.
The indicator light changes from
being on to flashing when the sys-
tem is set.
Do one of the following to d eactivate or stop the alarms:
● Unlock the doors.
● Turn the engine switch to the “ACC” or “ON” position, or start the
engine. (The alarm will be deact ivated or stopped after a few sec-
onds.)
: If equipped
The alarm
Setting the alarm system
Deactivating or stopping the alarm

871-2. Theft deterrent system
1
For safety and security
■Alarm-operated door lock
In the following cases, depending on the situation, the door ma y automatically
lock to prevent improper entry into the vehicle:
● When a person remaining in the vehicle locks the door and the a larm is acti-
vated.
● While the alarm is activated, a person remaining in the vehicle unlocks the
door.
● 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.

932. Instrument cluster
2
Instrument cluster
*1: These lights turn on when the engine switch is turned to the “ON” positionto indicate that a system check is being performed. They will turn off after
the engine is started, or after a few seconds. There may be a m alfunction
in a system if the lights do not come on, or if the lights do n ot turn off. Have
the vehicle inspected by your Toyota dealer for details.
*2: The light flashes to indicate that the system is operating. Front fog light indicator
(
P. 216)
*1
“TRAC OFF” indicator
(P. 302)
*1, 5
“AIR BAG ON” and
“AIR BAG OFF”
indicators ( P. 50)
*9
“RCTA” indicator
(P. 286)
Security indicator
( P. 76, 85)
*6, 9
Radar cruise control
indicator ( P. 252)
*1“AUTO LSD” indicator
(P. 299, 302)
*1, 2Slip indicator
( P. 302)*1, 8, 9
PCS warning light
(P. 235)
*1VSC off indicator
(P. 299, 302)
(4WD models)
“4HI” indicator ( P. 296)
“TOW HAUL” indicator
( P. 200)
(4WD models)
“4LO” indicator ( P. 296)
*9“BSM” indicator
(P. 286)*6
(Green)
Trailer connection
indicator ( P. 308)
*3, 4, 9
BSM outside rear view
mirror indicator
(P. 286)
*6, 7
Low outside temperature
indicator

1143-2. Opening, closing and locking the doors
Side doors
◆KeyLocks all the doors
Unlocks all the doors
Turning the key unlocks the
driver’s door. Turning the key
again unlocks the other doors.
Vehicles with moon roof:Closes the moon roof (turn
and hold)
Opens the moon roof (turn and hold)
◆Wireless remote control (if equipped)
Locks all the doors
Check that the door is securely
locked.
Unlocks all the doors
Pressing the button unlocks the
driver’s door. Pressing the button
again within 3 seconds unlocks the
other doors.
■Operation signals (vehicles with wireless remote control)
A buzzer sounds and the emergency flashers flash to indicate th at the doors
have been locked/unlocked. (Locked: once; Unlocked: twice)
■ Door lock buzzer (vehicles wi th wireless remote control)
If an attempt to lock the doors is made when a door is not full y closed, a
buzzer sounds continuously for 5 seconds. Fully close the door to stop the
buzzer, and lock the vehicle once more.
Unlocking and locking the doors from the outside
1
2
3
4
1
2

1153-2. Opening, closing and locking the doors
3
Operation of each component
■Security feature (vehicles with wireless remote control)
If a door is not opened within approximately 60 seconds after t he vehicle is
unlocked, the security feature automatically locks the vehicle again.
■ Alarm (if equipped)
Using the wireless remote control to lock the doors will set th e alarm system.
( P. 85)
■
Door lock switch Locks all the doors
Unlocks all the doors
■Inside lock buttons
Locks the door
Unlocks the door
The front doors can be opened
by pulling the inside handle
even if the lock buttons are in
the lock position.
Unlocking and locking the doors from the inside
1
2
Driver’s door lock switchPassenger’s door lock switch
1
2

1183-2. Opening, closing and locking the doors
Tailgate
Unlock the tailgate
Lock the tailgate
Pull the handle
Open the tailgate slowly
The support cables will hold the
tailgate horizontal.
Lift and close the tailgate
After closing the tailgate, try pulling
it toward you to make sure it is
securely locked.
The tailgate can be opened using the tailgate handle. The tail-
gate can be locked/ unlocked using a key.
Locking/unlocking the tailgate
1
2
Opening/closing the tailgate
1
2
3

1223-2. Opening, closing and locking the doors
For rear end protection and easier
step-up loading.
To get on the rear step bumper,
use the shaded area in the illustra-
tion.
Rear step bumper
WARNING
■Before removing the tailgate
Disconnect the wire harness between the back-up camera and the vehicle.
Failure to do so may result in serious personal injury or damage to the vehi-
cle components.
■ Caution while driving
Observe the following precautions.
Failure to do so may result in death or serious personal injury .
● Do not drive with the tailgate open.
● Do not allow others to get on the rear step bumper.
NOTICE
■To prevent damage to the tailgate wire harness
Do not pull out all of the tailgate wire harness before opening the tailgate.
■ To prevent damage to the camera lens
Store the removed tailgate with the back-up camera lens facing upward.
■ After closing the tailgate
Try pulling it toward you to make sure it is securely locked.
■ To prevent damage to the rear step bumper
Do not allow more than one person to get on the rear step bumpe r at a time.