2021 TOYOTA TUNDRA Owners Manual (in English)

5698-2. Customization
8
Vehicle specifications
■Smart key system and wireless remote control* ( P. 1 2 7 )
*: If equipped
■
Smart key system* (  P. 127, 138)
*: If equipped
FunctionDefault settingCustomized
setting
Operation signal
(Emergency flashers) On Off — O O
Operation signal
(Buzzer) On Off — — O
Operation buzzer volume Level 5 Off to level 7 O O O
Time elapsed before auto-
matic door lock function is
activated if door is not
opened after being
unlocked 60 seconds
Off
—O O
30 seconds
120 seconds
Open door warning
buzzerOnOff — —O
123
FunctionDefault settingCustomized setting
Smart key systemOnOff——O
Number of permissible
times of continuous smart
lock Twice Unlimited — — O
123

5708-2. Customization
■Wireless remote control* ( P. 1 2 8 )
*: If equipped
FunctionDefault settingCustomized
setting
Wireless remote control OnOff—— O
Unlocking operation Driver’s door
unlocked in one step, all doors
unlocked in two steps All doors
unlocked in
one step—O O
Automatic door lock func-
tion to be activated if door
is not opened after being
unlocked On Off
—— O
Time elapsed before auto-
matic door lock function is
activated if door is not
opened after being
unlocked60 seconds0 seconds
—O O30 seconds
120 seconds
Operation signal
(Emergency flashers) On Off
—O O
Operation signal
(Buzzer)On Off—— O
Panic function
OnOff—— O
Open door reminder
buzzer (When locking the
vehicle) On Off
—— O
123

5718-2. Customization
8
Vehicle specifications
■Moon roof* ( P. 1 7 9 )
*: If equipped
■
Automatic light off system* (  P. 234)
*: If equipped
FunctionDefault settingCustomized
setting
Door key linked operation Open and close Open only—— OClose only
Off
Linked operation of com-
ponents when door key is
used Slide only Tilt only
—— O
123
FunctionDefault settingCustomized
setting
Light sensor sensitivity Level 3 Level 1 to 5—O O
Time elapsed before
headlights automatically
turn off after doors are
closed 30 seconds0 seconds
—O O60 seconds
90 seconds
123

5728-2. Customization
■Illumination (P. 3 5 7 )
*: Vehicles with a smart key system
■
Seat Belt Reminder Buzzer ( P. 486)
FunctionDefault settingCustomized
setting
Time elapsed before lights
turn off 15 seconds7.5 seconds—O O30 seconds
Operation after the engine
is off On
Off
—— O
Operation when the doors
are unlocked On Off—— O
Operation when you
approach the vehicle with
the electronic key on your
person
*
On
Off — — O
123
FunctionDefault settingCustomized
setting
Vehicle speed linked seat
belt reminder buzzerOnOff—— O
123

5738-2. Customization
8
Vehicle specifications
■Vehicle customization
●When the speed-detecting automatic door lock function and shift position
linked door locking function (shifting gears to a position other than P locks
all doors) are both on, the door lock operates as follows.
• When shifting the shift lever to any position other than P, al l the doors will
be locked.
• If the vehicle is started with all the doors locked, the speed-detecting auto- matic door lock function would not operate.
• If the vehicle is started with any the door unlocked, the spee d-detecting
automatic door lock function will operate.
● When the doors remain closed after unlocking the doors and the automatic
door lock function (Time elapsed before the automatic door lock function is
activated if a door is not opened after being unlocked) activates, the signals
will be generated in accordance with operation signal (buzzers) and the
operation signal (emergency flashers) settings.
WARNING
■ During customization
As the engine needs to be running during customization, ensure that the
vehicle is parked in a place with adequate ventilation. In a closed area such
as a garage, exhaust gases including harmful carbon monoxide (CO) may
collect and enter the vehicle. This may lead to death or seriou s health haz-
ard.
NOTICE
■ During customization
To prevent battery discharge, ensure that the engine is running while cus-
tomizing features.

5748-3. Items to initialize
Items to initialize
The following items must be initialized for normal system opera-
tion after such cases as the battery being reconnected, or main -
tenance being performed on the vehicle:
ItemWhen to initializeReference
Moon roof
• After reconnecting or chang- ing the battery
• After changing a fuse
P. 181
Message indicating mainte-
nance is required• After the maintenance is per- formedP. 407
Tire pressure warning sys-
tem• When rotating the tires.
• When changing the tire size.P. 428

575
9For owners
Reporting safety defects for U.S. owners........................ 576
Seat belt instructions for Canadian owners
(in French) ............................... 577
SRS airbag instructions for Canadian owners
(in French) .............................. 579
Camper information ................... 588

576
Reporting safety defects for U.S. owners
If you believe that your vehicle has a defect which could cause a
crash or could cause injury or death, you should immediately
inform the National Highway Traffic Safety Administration
(NHTSA) in addition to notifying Toyota Motor Sales, U.S.A., Inc.
(Toll-free: 1-800-331-4331).
If NHTSA receives similar complaints, it may open an investiga-
tion, and if it finds that a safety defect exists in a group of vehicles,
it may order a recall and remedy campaign. However, NHTSA can-
not become involved in individual problems between you, your
dealer, or Toyota Moto r Sales, U.S.A., Inc.
To contact NHTSA, you may call th e Vehicle Safety Hotline toll-free at
1-888-327-4236 (TTY: 1-800-424-9153); go to
http://www.safercar.gov ;
or write to: Administrator, NHTSA, 1200 New Jersey Ave. SE.,
Washington, DC 20590. You can also obtain other information abo ut
motor vehicle safety from
http://www.safercar.gov.