2021 TOYOTA TUNDRA lock

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.

1413-2. Opening, closing and locking the doors
3
Operation of each component
■Battery-saving function
The battery-saving function will be activated in order to preve nt the electronic
key battery and the battery from being discharged while the veh icle is not in
operation for a long time.
● In the following situations, the smart key system may take some time to
unlock the doors.
• The electronic key has been left in an area of approximately 6 ft. (2 m) of
the outside of the vehicle for 10 minutes or longer.
• The smart key system has not been used for 5 days or longer.
● If the smart key system has not been used for 14 days or longer , the doors
cannot be unlocked at any door except the driver’s door. In thi s case, take
hold of the driver’s door handle, or use the wireless remote co ntrol or the
mechanical key, to unlock the doors.
The system will resume operation when
● The vehicle is locked using the door handle lock switch when ca rrying the
electronic key on your person.
● The vehicle is locked/unlocked using the wireless remote contro l. (P. 128)
● The vehicle is locked/unlocked using the mechanical key. ( P. 523)
■ Electronic Key Battery-Saving Function
When battery-saving mode is set, battery depletion is minimized by stopping
the electronic key from receiving radio waves.
Press twice while pressing and
holding . Confirm that the electronic
key indicator flashes 4 times.
While the battery-saving mode is set, the
smart key system cannot be used. To
cancel the function, press any of the elec-
tronic key buttons.