TOYOTA TUNDRA 2023 Workshop Manual

511-1. For safe use
1
For safety and security
*1: The system judges a person of adult size as an adult. When a smaller
adult sits in the front passenger seat, the system may recognize him/her
as a child depending on his/her physique and posture.
*2: In the event the front passenger is wearing a seat belt.
*3: In the event the front passenger does not wear a seat belt.
*4: When a larger child who has outgrown a child restraint system sits in the front passenger seat, the system may recognize him/her as an adult
depending on his/her physique or posture.
*5: Never install a rear-facing child restraint system on the front passengerseat. A forward-facing child restraint system should only be installed on
the front passenger seat when it is unavoidable. ( P. 54)
*6: In case the indicator light is not illuminated, consult this m anual on how
to install the child restraint system properly. ( P. 58)
*7: In the event of a frontal collision or rollover.
*8: In the event of a side collision.
WARNING
■Front passenger occupant classification system precautions
Observe the following precautions regarding the front passenger occupant
classification system.
Failure to do so may cause death or serious injury.
● Wear the seat belt properly.
● Make sure the front passenger’s seat belt plate has not been le ft inserted
into the buckle before someone sits in the front passenger seat.
● Make sure the “AIR BAG OFF” indicator light is not illuminated when using
the seat belt extender for the front passenger seat. If the “AI R BAG OFF”
indicator light is illuminated, disconnect the extender tongue from the seat
belt buckle, and reconnect the seat belt. Reconnect the seat belt extender
after making sure the “AIR BAG ON” indicator light is illuminated. If you
use the seat belt extender while the “AIR BAG OFF” indicator light is illumi-
nated, the SRS airbags for the front passenger will not activate, which
could cause death or serious injury in the event of a collision.
● Do not apply a heavy load to the front passenger seat or equipment (e.g.
seatback pockets).
● Vehicles with rear seats: Do not put weight on the front passenger seat by
putting your hands or feet on the front passenger seat seatback from the
rear passenger seat.
● Vehicles with rear seats: Do not let a rear passenger lift the front passen-
ger seat with their feet or press on the seatback with their le gs.
● Do not put objects under the front passenger seat.

521-1. For safe use
WARNING
■Front passenger occupant classification system precautions
● Do not recline the front passenger seatback so far that it touches a rear
seat or a back wall. This may cause the “AIR BAG OFF” indicator light to
be illuminated, which indicates that the SRS airbags for the front passen-
ger will not activate in the event of a severe accident. If the seatback
touches the rear seat or back wall, return the seatback to a po sition where
it does not touch the rear seat or back wall. Keep the front passenger seat-
back as upright as possible when the vehicle is moving. Reclini ng the
seatback excessively may lessen the effectiveness of the seat belt sys-
tem.
● If an adult sits in the front passenger seat, the “AIR BAG ON” indicator
light is illuminated. If the “AIR BAG OFF” indicator is illumin ated, ask the
passenger to sit up straight, well back in the seat, feet on the floor, and
with the seat belt worn correctly. If the “AIR BAG OFF” indicat or still
remains illuminated, either ask the passenger to move to the re ar seat, or
if that is not possible, move the front passenger seat fully re arward.
● When it is unavoidable to install a forward-facing child restraint system on
the front passenger seat, install the child restraint system on the front pas-
senger seat in the proper order. ( P. 58)
● Do not modify or remove the front seats.
● Do not kick the front passenger seat or subject it to severe im pact. Other-
wise, the SRS warning light may come on to indicate a malfunction of the
front passenger occupant classification system. In this case, contact your
Toyota dealer immediately.
● Vehicles with rear seats: Child restraint systems installed on the rear seat
should not contact the front seatbacks.
● Do not use a seat accessory, such as a cushion and seat cover, that cov-
ers the seat cushion surface.
● Do not attach a commercial seatback table or other heavy item t o the back
of the front passenger seat.
● Do not modify or replace the upholstery of the front seat.

531-1. For safe use
1
For safety and security
Safety information for children
●Vehicles with rear seats: It is recommended that children sit i n the
rear seats to avoid accidental co ntact with the shift lever, wiper
switch, etc.
● Use the rear door child-protector lock (Double Cab models only) or
the window lock switch to avoid children opening the door while
driving or operating the power window accidentally.
● Do not let small children operate equipment which may catch or
pinch body parts, such as the power window, hood, tailgate, sea ts,
etc.
Observe the following precautions when children are in the vehi -
cle.
Use a child restraint system appropriate for the child, until the
child becomes large enough to properly wear the vehicle’s seat
belt.
WARNING
Never leave children unattended in the vehicle, and never allow children to
have or use the key.
Children may be able to start the vehicle or shift the vehicle into neutral.
There is also a danger that children may injure themselves by playing with
the windows, the moon roof or other features of the vehicle. In addition, heat
build-up or extremely cold temperatures inside the vehicle can be fatal to
children.

541-1. For safe use
Child restraint systems
Studies have shown that installing a child restraint on a rear seat is
much safer than installing one on the front passenger seat.
● Choose a child restraint system that suits your vehicle and is appro-
priate to the age and size of the child.
● For installation details, follow the instructions provided with the child
restraint system.
General installation instructio ns are provided in this manual.
(  P. 58)
A child restraint system for a small child or baby must itself be
properly restrained on the seat with the lap portion of the lap /
shoulder belt.
The laws of all 50 states of th e U.S.A. and Canada now require
the use of child restraint systems.
Points to remember

551-1. For safe use
1
For safety and security
Child restraint systems are classified into the following 3 types
according to the age a nd size of the child:
■Selecting an appropriate child restraint system
●Use a child restraint system appropriate for the child until th e child becomes
large enough to properly wear the vehicle’s seat belt.
● If the child is too large for a child restraint system, sit the child on a rear seat
and use the vehicle’s seat belt. ( P. 30)
Types of child restraints
Rear facing  Infant seat/con-
vertible seatForward facing  Convertible
seat
Booster seat

561-1. For safe use
WARNING
■Child restraint precautions
● For effective protection in automobile accidents and sudden stops, a child
must be properly restrained, using a seat belt or child restrai nt system
depending on the age and size of the child. Holding a child in your arms is
not a substitute for a child restraint system. In an accident, the child can be
crushed against the windshield, or between you and the vehicle’ s interior.
● Vehicles without rear seats: Toyota strongly urges the use of a proper child
restraint system that conforms to the size of the child.
● Vehicles with rear seats: Toyota strongly urges the use of a proper child
restraint system that conforms to the size of the child, instal led on the rear
seat. According to accident statistics, the child is safer when properly
restrained in the rear seat than in the front seat.
● Never install a rear-facing child restraint system on the front passenger
seat even if the “AIR BAG OFF” i ndicator light is illuminated.
In the event of an accident, the force of the rapid inflation of the front pas-
senger airbag can cause death or serious injury to the child if the rear-fac-
ing child restraint system is installed on the front passenger seat.
● Vehicles without rear seats: A forward-facing child restraint s ystem may be
installed on the front passenger seat only when it is unavoidab le. Adjust
the seatback as upright as possible and always move the seat as far back
as possible even if the “AIR BAG OFF” indicator light is illumi nated,
because the front passenger airbag could inflate with considerable speed
and force. Otherwise, the child may be killed or seriously injured.
● Vehicles with rear seats: A forward-facing child restraint syst em may be
installed on the front passenger seat only when it is unavoidable. A child
restraint system that requires a top tether strap should not be used in the
front passenger seat since there is no top tether strap anchor for the front
passenger seat. Adjust the seatback as upright as possible and always
move the seat as far back as possible even if the “AIR BAG OFF” indicator
light is illuminated, because the front passenger airbag could inflate with
considerable speed and force. Otherwise, the child may be kille d or seri-
ously injured.

571-1. For safe use
1
For safety and security
WARNING
■Child restraint precautions
● Do not use the seat belt extender when installing a child restr aint system
on the front or rear passenger seat. If installing a child restraint system
with the seat belt extender connected to the seat belt, the seat belt will not
securely hold the child restraint system, which could cause dea th or seri-
ous injury to the child or other passengers in the event of an accident.
● Do not allow the child to lean his/her head or any part of his/her body
against the door or the area of the seat, front and rear pillar s or roof side
rails from which the SRS side airbags or SRS curtain shield airbags deploy
even if the child is seated in the child restraint system. It is dangerous if
the SRS side airbags and curtain shield airbags inflate, and th e impact
could cause death or serious injury to the child.
● Make sure you have complied with all installation instructions provided by
the child restraint manufacturer and that the system is properly secured. If
it is not secured properly, it may cause death or serious injury to the child
in the event of a sudden stop or an accident.
■ 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.
■ When the child restraint system is not in use
● Keep the child restraint system properly secured on the seat even if it is
not in use. Do not store the child restraint system unsecured in the pas-
senger compartment.
● If it is necessary to detach the child restraint system, remove it from the
vehicle. This will prevent it from injuring passengers in the event of a sud-
den stop or an accident.

581-1. For safe use
Installing child restraints
Access Cab models (vehicles with rear seats)
Child restraint LATCH anchors
LATCH anchors are provided for
each of rear seats.
Double Cab models
Child restraint LATCH anchors
LATCH anchors are provided for
the outer rear seats. (Buttons dis-
playing the location of the anchors
are attached to the seats.)
Follow the child restraint system manufacturer’s instructions.
Firmly secure child restraints to the seats using the LATCH
anchors or a seat belt. Attach t he top tether strap when installing
a child restraint.
The lap/shoulder belt can be used if your child restraint syste m
is not compatible with the LATCH (Lower Anchors and Tethers
for Children) system.
Using the LATCH anchors ( P. 61, 62)

591-1. For safe use
1
For safety and security
Seat belts equipped with a child
restraint locking mechanism
(ALR/ELR belts except driver’s
seat belt) (P. 32)
Access Cab models (vehicles without rear seats)
Anchor bracket (for top tether
strap)
Anchor bracket is provided for pas-
senger seat.
Using the seat belts ( P. 6 3 )
Using the top tether strap ( P. 66, 68)

601-1. For safe use
Access Cab models (vehicles with rear seats)
Anchor bracket (for top tether
strap)
Anchor bracket is provided for
each rear seat.
Double Cab models
Anchor bracket (for top tether
strap)
Anchor bracket is provided for
each rear seat.