2021 TOYOTA 4RUNNER door lock

801-3. Theft deterrent system
4RUNNER (U)
■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.)
■ Alarm-operated door lock
●When the alarm is operating, the doors are locked automatically to prevent
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.
●
A person inside the vehicle opens a door
or the hood.
● The battery is recharged or replaced
when the vehicle is locked.
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.

101
Operation of
each component
3
4RUNNER (U) 3-1. Key information
Keys .................................. 102
Side doors ......................... 110
3-2. Opening, closing and locking the doors
Smart key system ............. 118
Automatic running boards ............................. 128
Back door .......................... 131
3-3. Adjusting the seats Front seats ........................ 136
Rear seats......................... 139
Driving position memory ........................... 149
Head restraints.................. 153
3-4. Adjusting the steering wheel and mirrors
Steering wheel .................. 156
Inside rear view mirror ...... 158
Outside rear view mirrors ............................. 160
3-5. Opening, closing the windows and
moon roof
Power windows ................. 162
Power back window .......... 166
Moon roof .......................... 170

1033-1. Key information
3
Operation of each component
4RUNNER (U)
Vehicles without a smart key system
Locks all the doors (P. 1 1 0 )
Unlocks all the doors ( P. 1 1 0 )
Pressing the button unlocks the
driver’s door. Pressing the button
again within 3 seconds unlocks the
other doors.
Opens the windows and moon
roof (press and hold)
*
Sounds the alarm
(press and hold) ( P. 104)
*: This setting must be customized at your Toyota dealer.
Vehicles with a smart key system
Locks all the doors ( P. 1 1 0 )
Unlocks all the doors ( P. 1 1 0 )
Pressing the button unlocks the
driver’s door. Pressing the button
again within 3 seconds unlocks the
other doors.
Opens the windows and moon
roof (press and hold)
*
Sounds the alarm
(press and hold) ( P. 104)
*: This setting must be customized at your Toyota dealer.
Wireless remote control (if equipped)
1
2
3
4
1
2
3
4

1063-1. Key information
4RUNNER (U)■
Key battery depletion
Vehicles with a smart key system
● The standard battery life is 1 to 2 years.
● If the battery becomes low, an alarm will sound in the cabin wh en the engine
stops.
● As the electronic key always receives radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms indi-
cate that the electronic key battery may be depleted. Replace the battery
when necessary. ( P. 443)
• The smart key system or the wireless remote control does not o perate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
● To avoid serious deterioration, do not leave the electronic key within 3 ft. (1
m) of the following electrical appliances that produce a magnet ic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Table lamps
• Induction cookers
Vehicles without a smart key system
If the wireless remote control function does not operate, the b attery may be
depleted. Replace the battery when necessary. ( P. 443)
■ Precautions when disconnecting the battery (vehicles with a sma rt key
system)
● In some cases, it may not be possible to unlock the doors using the smart
key system immediately after the battery has been disconnected. Use the
wireless remote control or the mechanical key to lock or unlock the doors.
● The engine may not start on the first attempt after reconnectin g the battery
but will start normally after the second attempt. This is not a malfunction.
● The engine switch mode is memorized by the vehicle. When the ba ttery is
reconnected, the system will return to the mode it was in befor e the battery
was disconnected. Before disconnecting the battery, turn the en gine switch
off.
If you are unsure what mode the engine switch was in when the b attery was
disconnected, be especially careful when reconnecting the batte ry.

1103-1. Key information
4RUNNER (U)
◆Smart key system (if equipped)
Carry the electronic key to enable this function.
Grip the driver’s door handle
to unlock the door. Grip the
passenger’s door handle to
unlock all the doors.
Make sure to touch the sensor
on the back of the handle.
The doors cannot be unlocked
for 3 seconds after the doors are
locked.
Touch the lock sensor (the indent ation on the upper part of the
door handle) to lock the doors.
Check that the door is securely locked.
◆Wireless remote control
Vehicles without a smart key system
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 but-
ton again within 3 seconds
unlocks the other doors.
Press and hold to open the win-
dows and moon roof.
*
( P. 164, 172)
*: This setting must be customized at your Toyota dealer.
Side doors
Unlocking and locking the doors from the outside
1
2
1
2

1113-1. Key information
3
Operation of each component
4RUNNER (U)
Vehicles with a smart key system
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 but-
ton again within 3 seconds
unlocks the other doors.
Press and hold to open the win-
dows and moon roof.
*
( P. 164, 172)
*: This setting must be customized at your Toyota dealer.
◆Key
Turning the key operates the doors as follows:
Vehicles without a smart key system
Locks all the doors
Turn and hold to close the win-
dows and moon roof.
*
( P. 164, 172)
Unlocks all the doors
Driver’s side only: Turning the
key unlocks the driver’s door.
Turning the key again unlocks
the other doors.
Turn and hold to open the windows and moon roof.
* ( P. 164, 172)
*: This setting must be customized at your Toyota dealer.
Vehicles with a smart key system
The doors can also be locked and unlocked with the mechanical
key. ( P. 5 0 7 )
1
2
1
2

1123-1. Key information
4RUNNER (U)
■Operation signals
Vehicles without a smart key system
The emergency flashers flash to indicate that the doors have been locked/
unlocked. (Locked: once; Unlocked: twice)
Vehicles with a smart key system
A buzzer sounds and the emergency flashers flash to indicate th at the doors
have been locked/unlocked. (Locked: once; Unlocked: twice)
■ Security feature
Vehicles without a smart key system
If a door is not opened within approximately 60 seconds after t he vehicle is
unlocked, the security feature automatically locks the vehicle again.
Vehicles with a smart key system
If a door is not opened within approximately 60 seconds after t he vehicle is
unlocked, the security feature automatically locks the vehicle again. (How-
ever, depending on the location of the electronic key, the key may be
detected as being in the vehicle. In this case, vehicle may be unlocked.)
■ When the door cannot be locked by the lock sensor on the upper part of
the door handle (vehicles with a smart key system)
■ Door lock buzzer
If an attempt to lock the doors is made when a door is not full y closed, a
buzzer sounds continuously. Fully close the door to stop the bu zzer, and lock
the vehicle once more.
■ Alarm (if equipped)
Locking the doors will set the alarm system. ( P. 79)
■ If the smart key system or the wireless remote control does not operate
properly
Vehicles with a smart key system: Use the mechanical key to loc k and unlock
the doors. ( P. 507)
Replace the battery with a new one if it is depleted. ( P. 443)
If the door will not lock even when the top-
side sensor area is touched, try touching
both the topside and underside sensor
areas at the same time.

1133-1. Key information
3
Operation of each component
4RUNNER (U)
◆Door lock switchesLocks all the doors
Unlocks all the doors
◆Inside lock buttonsLocks 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
1
2