sensor TOYOTA TUNDRA 2023 Owners Manual

341-1. For safe use
WARNING
■When children are in the vehicle
Do not allow children to play with the seat belt. If the seat belt becomes
twisted around a child’s neck, it may lead to choking or other serious injuries
that could result in death.
If this occurs and the buckle cannot be unfastened, scissors should be used
to cut the belt.
■ Seat belt pretensioners (front seats)
● Do not place anything, such as a cushion, on the front passenger’s seat.
Doing so will disperse the passenger’s weight, which prevents the sensor
from detecting the passenger’s weight properly. As a result, the seat belt
pretensioner for the front passenger’s seat may not activate in the event of
a collision.
● If the pretensioner has activated, the SRS warning light will come on. In
that case, the seat belt cannot be used again and must be replaced at
your Toyota dealer.
■ Adjustable shoulder anchor (front seats)
Always make sure the shoulder belt is positioned across the cen ter of your
shoulder. The belt should be kept away from your neck, but not falling off
your shoulder. Failure to do so could reduce the amount of protection in an
accident and cause death or serious injuries in the event of a sudden stop,
sudden swerve or an accident. ( P. 31)
■ Seat belt damage and wear
● Do not damage the seat belts by allowing the belt, plate, or buckle to be
jammed in the door.
● Inspect the seat belt system periodically. Check for cuts, fraying, and loose
parts. Do not use a damaged seat belt until it is replaced. Damaged seat
belts cannot protect an occupant from death or serious injury.
● Ensure that the belt and plate are locked and the belt is not t wisted.
If the seat belt does not function correctly, immediately conta ct your Toyota
dealer.
● Replace the seat assembly, including the belts, if your vehicle has been
involved in a serious accident, even if there is no obvious damage.
● Do not attempt to install, remove, modify, disassemble or dispo se of the
seat belts. Have any necessary repairs carried out by your Toyota dealer.
Inappropriate handling of the pretensioner may prevent it from operating
properly, resulting in death or serious injury.

381-1. For safe use
Your vehicle is equipped with ADVANCED AIRBAGS designed based
on the US motor vehicle safety standards (FMVSS208). The airbag
sensor assembly (ECU) controls airbag deployment based on infor-
mation obtained from the sensors, etc., shown in the system com po-
nents diagram above. This informat ion includes crash severity and
occupant information. As the airbags deploy, a chemical reactio n in
the inflators quickly fills the airbags with non-toxic gas to h elp restrain
the motion of t he occupants.
SRS airbag system components
Seat belt pretensioners
Knee airbags
“AIR BAG ON” and “AIR BAG
OFF” indicator lights
Front passenger airbag
Curtain shield airbags
Side airbags (front seats)
Front passenger occupant
classification system (ECU
and sensors)
SRS warning light Driver airbag
Driver’s seat p
osition sensor
Side impact sensors (rear)
Side impact sensors (front)
Driver’s seat belt buckle
switch
Front passenger’s seat belt
buckle switch
Front impact sensors
Airbag sensor assembly1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

421-1. For safe use
WARNING
■SRS airbag precautions
● Do not use seat accessories which cover the parts where the SRS side
airbags inflate as they may interfere with inflation of the air bags. Such
accessories may prevent the side airbags from activating correctly, disable
the system or cause the side airbags to inflate accidentally, resulting in
death or serious injury.
● Do not strike or apply significant levels of force to the area of the SRS air-
bag components.
Doing so can cause the SRS airbags to malfunction.
● Do not touch any of the component parts immediately after the SRS air-
bags have deployed (inflated) as they may be hot.
● If breathing becomes difficult after the SRS airbags have deployed, open a
door or window to allow fresh air in, or leave the vehicle if i t is safe to do
so. Wash off any residue as soon as possible to prevent skin ir ritation.
● If the areas where the SRS airbags are stored, such as the steering wheel
pad and front and rear pillar garnishes, are damaged or cracked, have
them replaced by your Toyota dealer.
● Do not place anything, such as a cushion, on the front passenger’s seat.
Doing so will disperse the passenger’s weight, which prevents the sensor
from detecting the passenger’s weight properly. As a result, the SRS front
airbags for the front passenger may not deploy in the event of a collision.
■ Modification and disposal of SRS airbag system components
Do not dispose of your vehicle or perform any of the following modifications
without consulting your Toyota dealer. The SRS airbags may malfunction or
deploy (inflate) accidentally, causing death or serious injury.
● Installation, removal, disassembly and repair of the SRS airbags
● Repairs, modifications, removal or replacement of the steering wheel,
instrument panel, dashboard, seats or seat upholstery, front, side and rear
pillars or roof side rails
● Repairs or modifications of the front fender, front bumper, or side of the
occupant compartment
● Installation of a grille guard (bull bars, kangaroo bar, etc.), snow plows,
winches or roof luggage carrier
● Modifications to the vehicle’s suspension system
● Installation of electronic devices such as mobile two-way radio s and CD
players
● Modifications to your vehicle for a person with a physical disability

1203-2. Opening, closing and locking the doors
◆Smart key system (if equipped)
Carry the electronic key to enable this function.
Grip the driver’s door handle
to unlock the door. Grip the
passenger’s door handle to
unlock all the doors.
Make sure to touch the sensor
on the back of the handle.
The doors cannot be unlocked
for 3 seconds after the doors are
locked.
Touch the lock sensor (the indent ation on the upper part or lower
part of the front door h andle) to lock the doors.
Check that the door is securely locked.
■Operation signals (vehicles with a wireless remote control or s mart key
system)
A buzzer sounds and the emergency flashers flash to indicate th at the doors
have been locked/unlocked. (Locked: once; Unlocked: twice)
■ Security feature (vehicles with a wireless remote control or sm art key
system)
If a door is not opened within approximately 60 seconds after t he vehicle is
unlocked, the security feature automatically locks the vehicle again.
■ When the door cannot be locked by the lock sensor on the upper part of
the door handle (vehicles with a smart key system)
■ Door lock buzzer (vehicles with a smart key system)
If an attempt to lock the doors is made when a door is not full y closed, a
buzzer sounds continuously for 5 seconds. Fully close the door to stop the
buzzer, and lock the vehicle once more.
■ Alarm (if equipped)
Locking the doors will set the alarm system. ( P. 88)
1
If the door will not lock even when the top-
side sensor area is touched, try touching
both the topside and underside sensor
areas at the same time.
2

1353-2. Opening, closing and locking the doors
3
Operation of each component
■Note for the entry function
●Even when the electronic key is within the effective range (detection areas),
the system may not operate properly in the following cases:
• The electronic key is too close to the window or outside door handle, near
the ground, or in a high place when the doors are locked or unl ocked.
• The electronic key is on the instrument panel or floor, or in the console
box or glove box when the engine is started or engine switch mo des are
changed.
● Do not leave the electronic key on top of the instrument panel or near the
door pockets when exiting the vehicle. Depending on the radio w ave recep-
tion conditions, it may be detected by the antenna outside the cabin and the
door will become lockable from the outside, possibly trapping the electronic
key inside the vehicle.
● As long as the electronic key is within the effective range, th e doors may be
locked or unlocked by anyone. However, only the doors detecting the elec-
tronic key can be used to unlock the vehicle.
● Even if the electronic key is not inside the vehicle, it may be possible to start
the engine if the electronic key is near the window.
● The doors may unlock or lock if a large amount of water splashes on the
door handle, such as in the rain or in a car wash, when the electronic key is
within the effective range. (The doors will automatically be lo cked after
approximately 60 seconds if the doors are not opened and closed.)
● If the wireless remote control is used to lock the doors when t he electronic
key is near the vehicle, there is a possibility that the door m ay not be
unlocked by the entry function. (Use the wireless remote contro l to unlock
the doors.)
● Touching the door lock or unlock sensor while wearing gloves ma y prevent
lock or unlock operation. Remove the gloves and touch the lock sensor
again.
● When the lock operation is performed using the lock sensor, rec ognition sig-
nals will be shown up to two consecutive times. After this, no recognition
signals will be given.
● If the door handle becomes wet while the electronic key is with in the effec-
tive range, the door may lock and unlock repeatedly. In this case, follow the
following correction procedures to wash the vehicle:
• Place the electronic key in a location 6 ft. (2 m) or more awa y from the
vehicle. (Take care to ensure that the key is not stolen.)
• Set the electronic key to battery-saving mode to disable the s mart key
system. ( P. 133)
● If the electronic key is inside the vehicle and a door handle b ecomes wet
during a car wash, a message may be shown on the multi-informat ion dis-
play and a buzzer will sound outside the vehicle. To turn off t he alarm, lock
all the doors.

1363-2. Opening, closing and locking the doors
●The lock sensor may not work properly if it comes into contact with ice,
snow, mud, etc. Clean the lock sensor and attempt to operate it again, or
use the lock sensor on the lower part of the door handle.
● If there is another electronic key in the detection area, it ma y take slightly
longer to unlock the doors after the door handle is gripped.
● A sudden handle operation or a handle operation immediately aft er entering
the effective range may prevent the doors from being unlocked. Touch the
door unlock sensor and check that the doors are unlocked before pulling the
door handle again.
● Fingernails may scrape against the door during operation of the door han-
dle. Be careful not to injure fingernails or damage the surface of the door.
■ Note for the unlocking function
●Gripping the door handle when wearing a glove may not unlock th e door.
● A sudden approach to the effective range or door handle may prevent the
doors from being unlocked. In this case, return the door handle to the origi-
nal position and check that the doors unlock before pulling the door handle
again.
● If there is another electronic key in the detection area, it ma y take slightly
longer to unlock the doors after the door handle is gripped.
■ When the vehicle is not driven for extended periods
●To prevent theft of the vehicle, do not leave the electronic ke y within 6 ft.
(2 m) of the vehicle.
● The smart key system can be deactivated in advance. ( P. 568)
■ To operate the system properly
●Make sure to carry the electronic key when operating the system. Do not get
the electronic key too close to the vehicle when operating the system from
the outside of the vehicle.
● Depending on the position and holding condition of the electron ic key, the
key may not be detected correctly and the system may not operat e properly.
(The alarm may go off accidentally, or the door lock prevention function may
not operate.)
■ If the smart key system does not operate properly
●Locking and unlocking the doors: Use the mechanical key. ( P. 528)
● Starting the engine: P. 528
■ Customization
Settings (e. g. smart key system) can be changed.
(Customizable features: P. 568)
■ If the smart key system has been d eactivated in a customized setting
● Locking and unlocking the doors:
Use the wireless remote control or mechanical key. ( P. 119, 528)
● Starting the engine and changing engine switch modes: P. 528
● Stopping the engine: P. 206

1533-4. Adjusting the steering wheel and mirrors
3
Operation of each component
■To prevent sensor error (vehicles with auto anti-glare inside r ear view
mirror)
To ensure that the sensors operate prop-
erly, do not touch or cover them.
WARNING
Do not adjust the position of the mirror while driving.
Doing so may lead to mishandling of the vehicle and cause an accident,
resulting in death or serious injury.

2224-3. Operating the lights and wipers
With the headlights on, push
the lever away from you to turn
on the high beams.
Pull the lever toward you to the
center position to turn the high
beams off.
Pull the lever toward you and
release it to flash the high
beams once.
You can flash the high beams with the headlights on or off.
■Daytime running light system
●The daytime running lights illuminate using the same lights as the front turn
signal/parking lights, and illuminate brighter than the front t urn signal/park-
ing lights.
● To make your vehicle more visible to other drivers during dayti me driving,
the daytime running lights turn on automatically when all of the following
conditions are met. (The daytime running lights are not designe d for use at
night.)
• The engine is running
• The parking brake is released
• The headlights switch is in “AUTO”* (type A and C) or the “DRL ” (type B)
position
*: When the surroundings are bright
The daytime running lights remain on after they illuminate, even if the parking
brake is set again.
● Compared to turning on the headlights, the daytime running ligh t system
offers greater durability and consumes less electricity, so it can help improve
fuel economy.
■ Headlight control sensor (vehicl es with an automatic light control sys-
tem)
Turning on the high beam headlights
1
2
The sensor may not function properly if an
object is placed on the sensor, or anything
that blocks the sensor is affixed to the
windshield.
Doing so interferes with the sensor
detecting the level of ambient light and
may cause the automatic headlight sys-
tem to malfunction.

2234-3. Operating the lights and wipers
4
Driving
■Automatic light off system
When the light switch is in or : The lights turn off 30 secon ds after the
engine switch is turned to the “LOCK” position (vehicles withou t a smart key
system) or off (vehicles with a smart key system) and a door is opened and all
of the doors are closed. (Vehicles with a wireless remote control function: The
lights turn off immediately if on the key is pressed while all the doors are
locked.)
When the light switch is in : The lights turn off after the en gine switch is
turned to the “LOCK” position (vehicles without a smart key sys tem) or off
(vehicles with a smart key system) and the driver’s door is opened.
To turn the lights on again, turn the engine switch to the “ON” position (vehi-
cles without a smart key system) or to IGNITION ON mode (vehicles with a
smart key system), or turn the light switch off, then turn it to or to .
If any of the doors is kept open and the engine switch is in the “LOCK” posi-
tion (vehicles without a smart key system) or off (vehicles wit h a smart key
system), the lights automatically turn off after 20 minutes.
■ Light reminder function
An alarm will sound and message will be shown on the multi-information dis-
play when the driver 's door is opened with the lights are turned on and the
engine switch to the “LOCK” position (vehicles without a smart key system) or
off (vehicles with a smart key system).
■ Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features: P. 568)
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engin e is not
running.

2244-3. Operating the lights and wipers
Automatic High Beam
Push the lever away from you
with the headlight switch in the or (if equipped) posi-
tion.
Press the Automatic High
Beam switch.
The Automatic High Beam indica-
tor will come on when the head-
lights are turned on automatically
to indicate that the system is
active.
: If equipped
The Automatic High Beam uses an in-vehicle camera sensor to
assess the brightness of streetl ights, the lights of vehicles
ahead etc., and automatically turns the high beam on or off as
necessary.
WARNING
■ Limitations of the Automatic High Beam
Do not rely on the Automatic High Beam. Always drive safely, ta king care to
observe your surroundings and turning the high beam on or off m anually if
necessary.
■ To prevent incorrect operation of the Automatic High Beam syste m
Do not overload the vehicle.
Activating the Automatic High Beam system
1
2