TOYOTA TUNDRA 2021 Owners Manual (in English)

1313-2. Opening, closing and locking the doors
3
Operation of each component
Vehicles without a smart key system
Move the inside lock bu tton to the lock position.
Close the door.
Vehicles with power door lock system:
The door cannot be locked if either of the front doors is open and the
key is in the engine switch.
Vehicles with a smart key system
The door cannot be locked if the engine switch is in ACC or ON, or the
electronic key is left inside the vehicle.
The key may not be detected correctly and the door may be locke d.
The door cannot be opened from
inside the vehicle when the lock is
set.
Unlock
Lock
These locks can be set to prevent
children from opening the rear
doors. Push down on each rear
door switch to lock both rear doors.
Locking the front doors from the outside without a key
Rear door child-protector lock
1
2
1
2

1323-2. Opening, closing and locking the doors
The following functions can be set or canceled:
■Customization that can be configured at Toyota dealer
Settings (e.g. unlocking function using a key) can be changed.
(Customizable features: P. 564)
Automatic door locking and unlocking systems
FunctionOperation
Shift position linked door locking
functionShifting the shift lever out of P locks
all the doors.
Shift position linked door unlocking
functionShifting the shift lever to P unlocks
all the doors.
Speed linked door locking function
All the doors are locked when the
vehicle speed is approximately 12 mph
(20 km/h) or higher.
Driver’s door linked door unlocking
function
All the doors are unlocked when the
driver’s door is opened within 10 sec-
onds after turning the engine switch to
OFF.
WARNING
■ To prevent an accident
Observe the following precautions while driving the vehicle.
Failure to do so may result in a door opening and an occupant throwing out
of the vehicle, resulting in death or serious injury.
● Ensure that all doors are properly closed and locked.
● Do not pull the inside handle of the doors while driving.
Be especially careful for the front doors, as the doors may be opened even
if the inside lock buttons are in locked position.
● Double Cab and CrewMax models: Set the rear door child-protecto r locks
when children are seated in the rear seats.

1333-2. Opening, closing and locking the doors
3
Operation of each component
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

1343-2. Opening, closing and locking the doors
■Before removing the tailgate
These connector covers are used when removing the tailgate, to
prevent the back-up camera wire harness connectors from being
contaminated.
Connector cover (Gray)
Connector cover (White)
Store the connector covers in the
glove box in a plastic bag when not
using.
To disconnect the wire harness
connectors ( and ),
depress small plastic tab on
connector and pull apart
from connector .Tailgate wire harness con-
nector (White)
Frame wire harness connec-
tor (Gray)
Attach the connector cover
(White) to the frame wire har-
ness connector (Gray). Connector cover (White)
Frame wire harness connec-
tor (Gray)
Removing the tailgate
1
12
1
2
1
2
2
2

1353-2. Opening, closing and locking the doors
3
Operation of each component
Open the tailgate.
Pull out the plastic wire protec-
tor located in the vehicle bed by
pressing the tabs and pulling
the protector.
Plastic wire protector
Pull out the wire harness from
the vehicle bed.
Attach the connector cover
(Gray) to the tailgate wire har-
ness connector (White). Tailgate wire harness con-
nector (White)
Connector cover (Gray)3
4
5
6
1

1363-2. Opening, closing and locking the doors
■Removing the tailgate
Open the tailgate to the angle
where you can release the
brackets on the support cables
from the lugs on both sides.
Lift the support cable bracket
up and slide it off.
To unhook the support cable
bracket, keep pulling up the clip on
the bracket and unhook the
bracket.
Support cable bracket
Clip
Tilt the tailgate to about 45°
from vertical and pull up the
right side of the tailgate to
unhook the right side.
Tilt the tailgate up to 15°.
Slide the tailgate a little to the
right to unhook the left side.
To attach the tailgate, follow the
removal procedure in reverse
order.
1
1
2
2
3
4

1373-2. Opening, closing and locking the doors
3
Operation of each component
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.

1383-2. Opening, closing and locking the doors
Smart key system
●Locks and unloc ks the doors (P. 128)
● Starts the engine ( P. 2 1 9 )
■Antenna location
: If equipped
The following operations can be performed simply by carrying
the electronic key on your person, for example in your pocket.
The driver should always ca rry the electronic key.
Antennas outside the cabin
Antennas inside the cabin1
2

1393-2. Opening, closing and locking the doors
3
Operation of each component
■Effective range (areas within which the electronic key is detec ted)
■ Alarms and warning indicators
A combination of exterior and interior alarms as well as warnin g messages
shown on the multi-information display are used to prevent theft of the vehicle
and accidents resulting from erroneous operation. Take appropriate mea-
sures in response to any warning message on the multi-information display.
( P. 493)
The following table describes circumstances and correction procedures when
only alarms are sounded.
When locking or unlocking the
doors
The system can be operated
when the electronic key is within
about 2.3 ft. (0.7 m) of the driver’s
door handle. (Only the door
detecting the key can be oper-
ated.)
When starting the engine or changing engine switch modes
The system can be operated when the electronic key is inside the
vehicle.

1403-2. Opening, closing and locking the doors
AlarmSituationCorrection procedure
Exterior alarm sounds
once for 5 seconds An attempt was made
to lock the vehicle while
a door was open.
Close all of the doors
and lock the doors
again.
An attempt was made
to lock the doors using
the smart key system
while the electronic key
was still inside the vehi-
cle. Retrieve the electronic
key from the vehicle
and lock the doors
again.
An attempt was made
to lock either front door
by opening a door and
putting the inside lock
button into the lock
position, then closing
the door by pulling on
the outside door handle
with the electronic key
still inside the vehicle.
Interior alarm sounds
continuously An attempt was made
to open the door and
exit the vehicle when
the shift lever was not
in P.
Shift the shift lever to P.
The engine switch was
turned to ACC while the
driver’s door was open
(or the driver’s door
was opened while the
engine switch was in
ACC). Turn the engine switch
off and close the
driver’s door.