2021 TOYOTA TUNDRA remote control

1563-3. Adjusting the seats
■Cancelation procedureTurn the engine switch off and close the driver’s door.
While pressing the “SET” button, press on the wireless
remote control until you hear 2 beeps.
■ If the battery is disconnected
The recorded seat positions are erased when the battery is disc onnected.
WARNING
■Seat adjustment caution
Take care during seat adjustment so that the seat does not stri ke the rear
passenger or squeeze your body against the steering wheel.
1
2

3855-4. Using the other interior features
5
Interior features
Garage door opener
The HomeLink® wireless control system in your vehicle has 3 buttons
which can be programmed to operate 3 different devices. Refer to the
programming methods on the following pages to determine the
method which is approp riate for the device.
HomeLink
® indicator light
Garage door operation indica-
tors
Buttons
■Before programming the HomeLink®
● During programming, it is possible that garage doors, gates, or
other devices may operate. For this reason, make sure that peo-
ple and objects are clear of the garage door or other devices t o
prevent injury or other potential harm.
● It is recommended that a new battery be placed in the remote
control transmitter for mo re accurate programming.
● Garage door opener motors manufactured after 1995 may be
equipped with rolling code pro tection. If this is the case, you may
need a stepladder or other sturdy, safe device to reach the
“learn” or “smart” button on the garage door opener motor.
: If equipped
The garage door opener can be programmed to operate garage
doors, gates, entry doors, door locks, home lighting systems,
security systems, and other devices.
HomeLink®
1
2
3

3865-4. Using the other interior features
■Programming the HomeLink®
Steps through must be perfo rmed within 60 seconds, other-
wise the indicator light will st op flashing and programming wil l not
be able to be completed.
Press and release the HomeLink
® button you want to program
and check that the HomeLink® indicator light flashes orange.
Point the remote control
transmitter for the device at
the rear view mirror, 1 to 3 in.
(25 to 75 mm) from the
HomeLink
® buttons.
Keep the HomeLink® indicator
light in view while programming.
Program a device.
Programming a device
other than an entry gate
(for U.S.A. owners)
Press and hold the remote
control transmitter button
until the HomeLink
® indicator
light changes from slowly
flashing orange to rapidly
flashing green (rolling code)
or continuously lit green
(fixed code), then release the
button.
Programming an entry gate (for U.S.A. owners)/Programming
a device in the Canadian market
Press and release the remote con trol transmitter button at 2 sec-
ond intervals, repeatedly, until the HomeLink
® indicator light
changes from slowly flashing orange to rapidly flashing green
(rolling code) or continuous ly lit green (fixed code).
13
1
2
3

3935-4. Using the other interior features
5
Interior features
WARNING
■When programming a garage door or other remote control device
The garage door or other device may operate, so ensure people a nd
objects are out of danger to prevent potential harm.
■ Conforming to federal safety standards
Do not use the HomeLink
® compatible transceiver with any garage door
opener or device that lacks safety stop and reverse features as required by
federal safety standards.
This includes any garage door that cannot detect an interfering object. A
door or device without these features increases the risk of dea th or serious
injury.
■ When operating or programming HomeLink
®
Never allow a child to operate or play with the HomeLink® buttons.

399
6Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 400
Cleaning and protecting the vehicle interior ........... 403
6-2. Maintenance Maintenance requirements ................... 406
General maintenance ........ 408
Emission inspection and maintenance (I/M)
programs ......................... 411 6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 412
Hood ................................. 414
Engine compartment ......... 415
Tires .................................. 426
Tire inflation pressure ....... 442
Wheels .............................. 445
Air conditioning filter.......... 448
Wireless remote control/ electronic key battery ...... 451
Checking and replacing fuses ............................... 454
Light bulbs......................... 457

4236-3. Do-it-yourself maintenance
6
Maintenance and care
■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 ACC. The engine may not start
when the engine switch turned from off. However, the engine wil l 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.
1
2
3

4516-3. Do-it-yourself maintenance
6
Maintenance and care
Wireless remote control/electronic key bat-
ter y

●Flathead screwdriver
● Small flathead screwdriver
● Lithium battery CR2016 (vehicles without a smart key system), o r
CR2032 (vehicles with a smart key system)
Vehicles without a smart key system
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver with
a rag.
To prevent the buttons from being
disassembled, face the button sur-
face downward.
Remove the module.
: If equipped
Replace the battery with a n ew one if it is depleted.
You will need the following items:
Replacing the battery
1
2

4536-3. Do-it-yourself maintenance
6
Maintenance and care
■Use a CR2016 (vehicles without a smart key system) or CR2032 (v ehicles
with a smart key system) lithium battery
● Batteries can be purchased at your Toyota dealer, local electri cal appliance
shops or camera stores.
● Replace only with the same or equivalent type recommended by the manu-
facturer.
● Dispose of used batteries according to local laws.
■ If the key battery is depleted
The following symptoms may occur:
●The smart key system (if equipped) and wireless remote control will not
function properly.
● The operational range will be reduced.
WARNING
■Removed battery a nd other parts
Keep away from children. These parts are small and if swallowed by a child,
they can cause choking. Failure to do so could result in death or serious
injury.
■ Certification for the lithium battery
CAUTION: RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN
INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO
THE INSTRUCTIONS
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
● Always work with dry hands.
Moisture may cause the battery to rust.
● Do not touch or move any other component inside the remote cont rol.
● Do not bend either of the battery terminals.