2022 TOYOTA TUNDRA door lock

4286-3. Do-it-yourself maintenance
Check the battery as follows:
■Battery exterior
Make sure that the battery terminals are not corroded and that
there are no loose connections, cracks, or loose clamps.
Terminals
Hold-down clamp
■ Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following before recharging:
●If recharging with the battery installed on the vehicle, be sur e to disconnect
the ground cable.
● Make sure the power switch on the charger is off when connectin g and dis-
connecting the charger cables to the battery.
■ After recharging/reconnecting the battery (vehicles with a smar t key sys-
tem)
The engine may not start. Follow the procedure below to initial ize the system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the engine.
● Unlocking the doors using the smart key system may not be possi ble imme-
diately after reconnecting the battery. If this happens, use the wireless
remote control or the mechanical key to lock/unlock the doors.
● Start the engine with the engine switch in ACCESSORY mode. The engine
may not start when the engine switch turned from off. However, the engine
will operate normally from the second attempt.
● The engine switch mode is recorded by the vehicle. If the batte ry is recon-
nected, the vehicle will return the engine switch mode to the s tatus it was in
before the battery was disconnected. Make sure to turn off the engine
before disconnect the battery. Take extra care when connecting the battery
if the engine switch mode prior to discharge is unknown.
If the system will not start even after multiple attempts, contact your Toyota
dealer.
Battery
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4977-2. Steps to take in an emergency
7
When trouble arises
Indicates that the engine switch is turned to the
“LOCK” or “ACC” position (vehicles without a
smart key system), or off or ACCESSORY mode
(vehicles with a smart key system) and the
driver’s door is opened while the lights are turned
on.
Turn the lights off.
(If equipped)
Indicates that the moon roof is not fully closed
(with the engine switch off, and the driver’s door
open).
A buzzer also sounds.
 Close the moon roof.
(If equipped)
Indicates that the Crawl Control is not available.
Select the four-wheel drive control switch
in “4L” and shift the shift lever to D or R.
(If equipped)
Indicates that the Crawl Control is not available.
Confirm the operating conditions of Crawl
Control. ( P. 317)
Warning messageDetails/Actions
(Flashes)
(Flashes)

5067-2. Steps to take in an emergency
Once3 times
The driver’s door was opened
and closed while the elec-
tronic key was not in the vehi-
cle, the shift lever was in P
and the engine switch was not
turned off.
Turn the engine switch
off.
 Bring the electronic key
back into the vehicle.
The electronic key was carried
outside the vehicle and a door
other than the driver’s door
was opened and closed while
the engine switch was in a
mode other than off.
Bring the electronic key
back into the vehicle.
OnceContin-
uous
An attempt was made to exit
the vehicle with the electronic
key and lock the doors without
first turning the engine switch
off when the shift lever was in
P.
Turn the engine switch
off and lock the doors
again.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Displayed alternately)
(Flashes)

5077-2. Steps to take in an emergency
7
When trouble arises
Once
The electronic key is not
detected when an attempt is
made to start the engine.
Start the engine with the
electronic key present.
9 times
An attempt was made to drive
when the electronic key was
not inside the vehicle.
Confirm that the elec-
tronic key is inside the
vehicle.
Contin-
uous
An attempt was made to lock
the doors using the smart key
system while the electronic
key was still inside the vehicle.
Retrieve the electronic
key from the vehicle and
lock the doors again.
OnceContin-
uous
An attempt was made to lock
either front door by opening a
door and putting the inside
lock button into the lock posi-
tion, then closing the door with
the electronic key still inside
the vehicle.
Retrieve the electronic
key from the vehicle and
lock the doors again.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)
(Flashes)

5087-2. Steps to take in an emergency
Once
The electronic key has a low
battery.
Replace the electronic
key battery. ( P. 451)
Once
The steering lock could not be
released within 3 seconds of
the engine switch being
pressed.
Press the engine switch
while depressing the
brake pedal and moving
the steering wheel left
and right.
Once
• When the doors were
unlocked with the mechani-
cal key and then the engine
switch was pressed, the
electronic key could not be
detected in the vehicle.
• The electronic key could not be detected in the vehicle
even after the engine switch
was pressed two consecu-
tive times.
 Touch the electronic key
to the engine switch
while depressing the
brake pedal.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)

5097-2. Steps to take in an emergency
7
When trouble arises
Once
Indicates that:
• With the engine switch off,the doors were unlocked
and then the driver’s door
was opened and closed
• The engine switch was
turned to ACCESSORY
mode without starting the
engine
 Press the engine switch
while depressing the
brake pedal.
Once
The engine switch has been
turned off with the shift lever in
a position other than P.
Shift the shift lever to P.
Once
After the engine switch has
been turned off with the shift
lever in a position other than
P, the shift lever has been
shifted to P.
Turn the engine switch
off.

Power was turned off due to
the automatic power off func-
tion.
Next time when starting
the engine, increase the
engine speed slightly and
maintain that level for
approximately 5 minutes
to recharge the battery.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)

5287-2. Steps to take in an emergency
If the electronic key does not operate
properly (vehicles with a smar t key system)
Use the mechanical key (P. 114)
in order to perform the following
operations:
Locks all the doors
Unlocks all the doors
Turning the key rearward unlocks
the driver’s door. Turning the key
once again unlocks the other
doors.
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Toyota emblem side
of the electronic key to the
engine switch.
If any of the doors is opened or
closed while the key is being
touched to the switch, an alarm will
sound to indicate that the start
function cannot detect the key.
Press the engine switch.
In the event that the engine still cannot be started, contact your Toyota
dealer.
If communication between the electronic key and vehicle is
interrupted ( P. 134) or the electronic key cannot be used
because the battery is depleted, the smart key system and wire-
less remote control cannot be used. In such cases, the doors
can be opened and the engine c an be started by following the
procedure below.
Locking and unlocking the doors
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Starting the engine
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5307-2. Steps to take in an emergency
If the vehicle batter y is discharged
If you have a set of jumper (or booster) cables and a second ve hicle
with a 12-volt battery, you can jump start your vehicle by foll owing the
steps below.
Confirm that the key is being
carried.
When connecting the jumper (or
booster) cables, depending on the
situation, the alarm may activate
and the doors may lock. ( P. 90)
Open the hood. (P. 417)
Connect the jumper cables according to the following procedure:
2TR-FE engine
The following procedures may be used to start the engine if the
vehicle’s battery is discharged.
You can also call your Toyota de aler or a qualified repair shop.
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