TOYOTA AVALON HYBRID 2021 (in English) Service Manual

411-1. For safe use
1
For safety and security
WARNING
■SRS airbag precautions
●If a vinyl cover is put on the area where the SRS knee airbag will deploy,
be sure to remove it.
●Do not use seat accessories which cover the parts where the SRS side
airbags inflate as they may interfere with inflation of the SRS airbags.
Such accessories may prevent the side airbags from activating correctly,
disable the system or cause the side airbags to inflate accidentally, result-
ing in death or serious injury.
●Do not strike or apply significant levels of force to the area of the SRS air-
bag components or the front doors.
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 it is safe to do
so. Wash off any residue as soon as possible to prevent skin irritation.
●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
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421-1. For safe use
WARNING
■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.
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●Repairs, modifications, removal or replacement of the steering wheel,
instrument panel, dashboard, seats or seat upholstery, front, side and rear
pillars, roof side rails, front door panels, front door trims or front door
speakers
●Modifications to the front door panel (such as making a hole in it)
●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 radios and CD
players
●Modifications to your vehicle for a person with a physical disability

431-1. For safe use
1
For safety and security
■If the SRS airbags deploy (inflate)
●Slight abrasions, burns, bruising etc., may be sustained from SRS airbags,
due to the extremely high speed deployment (inflation) by hot gases.
●A loud noise and white powder will be emitted.
●Parts of the airbag module (steering wheel hub, airbag cover and inflator) as
well as the front seats, parts of the front and rear pillars, and roof side rails,
may be hot for several minutes. The airbag itself may also be hot.
●The windshield may crack.
●The interior lights will turn on automatically. (P. 352)
●The emergency flashers will turn on automatically. (P. 448)
●For Safety Connect subscribers, if any of the following situations occur, the
system is designed to send an emergency call to the response center, noti-
fying them of the vehicle’s location (without needing to push the “SOS” but-
ton) and an agent will attempt to speak with the occupants to ascertain the
level of emergency and assistance required. If the occupants are unable to
communicate, the agent automatically treats the call as an emergency and
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110003000b[P. 69)
• An SRS airbag is deployed.
• A seat belt pretensioner is activated.
• The vehicle is involved in a severe rear-end collision.
■SRS airbag deployment conditions (SRS front airbags)
●The SRS front airbags will deploy in the event of an impact that exceeds the
set threshold level (the level of force corresponding to an approximately 12 -
18 mph [20 - 30 km/h] frontal collision with a fixed wall that does not move or
deform).
However, this threshold velocity will be considerably higher in the following
situations:
• If the vehicle strikes an object, such as a parked vehicle or sign pole,
which can move or deform on impact
• If the vehicle is involved in an underride collision, such as a collision in
which the front of the vehicle “underrides”, or goes under, the bed of a
truck
●Depending on the type of collision, it is possible that only the seat belt pre-
tensioners will activate.
●The SRS front airbags for the front passenger will not activate if there is no
passenger sitting in the front passenger seat. However, the SRS front air-
bags for the front passenger may deploy if luggage is put in the seat, even if
the seat is unoccupied.

441-1. For safe use
■SRS airbag deployment conditions (SRS side and curtain shield airbags)
●The SRS side and curtain shield airbags will deploy in the event of an
impact that exceeds the set threshold level (the level of force corresponding
to the impact force produced by an approximately 3300 lb. [1500 kg] vehicle
colliding with the vehicle cabin from a direction perpendicular to the vehicle
orientation at an approximate speed of 12 - 18 mph [20 - 30 km/h]).
●Both SRS curtain shield airbags may deploy in the event of a severe side
collision.
●Both SRS curtain shield airbags will deploy in the event of vehicle rollover.
●Both SRS curtain shield airbags may also deploy in the event of a severe
frontal collision.
■Conditions under which the SRS airbags may deploy (inflate), other than
a collision
The SRS front airbags and SRS curtain shield airbags may also deploy if a
serious impact occurs to the underside of your vehicle. Some examples are
shown in the illustration.
The SRS curtain shield airbags may also deploy under the situations shown
in the illustration. ●Hitting a curb, edge of pavement or hard
surface
●Falling into or jumping over a deep hole
●Landing hard or falling
●The angle of vehicle tip-up is marginal.
●The vehicle skids and hits a curb stone.

451-1. For safe use
1
For safety and security
■Types of collisions that may not deploy the SRS airbags (SRS front air-
bags)
The SRS front airbags do not generally inflate if the vehicle is involved in a
side or rear collision, if it rolls over, or if it is involved in a low-speed frontal
collision. But, whenever a collision of any type causes sufficient forward
deceleration of the vehicle, deployment of the SRS front airbags may occur.
■Types of collisions that may not deploy the SRS airbags (SRS side and
curtain shield airbags)
The SRS side and curtain shield airbags may not activate if the vehicle is
subjected to a collision from the side at certain angles, or a collision to the
side of the vehicle body other than the passenger compartment.
The SRS side airbags do not generally inflate if the vehicle is involved in a
frontal or rear collision, if it rolls over, or if it is involved in a low-speed side
collision. ●Collision from the side
●Collision from the rear
●Vehicle rollover
●Collision from the side to the vehicle
body other than the passenger compart-
ment
●Collision from the side at an angle
●Collision from the front
●Collision from the rear
●Vehicle rollover

461-1. For safe use
The SRS curtain shield airbags do not generally inflate if the vehicle is
involved in a rear collision, if it pitches end over end, or if it is involved in a
low-speed side or low-speed frontal collision.
■When to contact your Toyota dealer
In the following cases, the vehicle will require inspection and/or repair. Con-
tact your Toyota dealer as soon as possible.
●Any of the SRS airbags have been inflated. ●Collision from the rear
●Pitching end over end
●The front of the vehicle is damaged or
deformed, or was involved in an acci-
dent that was not severe enough to
cause the SRS front airbags to inflate.
●A portion of a door or its surrounding
area is damaged, deformed or has had a
hole made in it, or the vehicle was
involved in an accident that was not
severe enough to cause the SRS side
and curtain shield airbags to inflate.
●The pad section of the steering wheel,
dashboard near the front passenger air-
bag or lower portion of the instrument
panel is scratched, cracked, or other-
wise damaged.

471-1. For safe use
1
For safety and security
●The surface of the seats with the SRS
side airbag is scratched, cracked, or oth-
erwise damaged.
●The portion of the front pillars, rear pil-
lars or roof side rail garnishes (padding)
containing the SRS curtain shield air-
bags inside is scratched, cracked, or
otherwise damaged.

481-1. For safe use
Driver’s and front passenger’s
seat belt reminder light
SRS warning light
“AIR BAG OFF” indicator light
“AIR BAG ON” indicator light
Front passenger occupant classification
system
Your vehicle is equipped with a front passenger occupant classi-
fication system. This system detects the conditions of the front
passenger seat and activates or deactivates the front passenger
airbag and front passenger knee airbag.
1
2
3
4

491-1. For safe use
1
For safety and security
■Adult*1
■Child*4
■Child restraint system with infant*5
Condition and operation in the front passenger occupant classi-
fication system
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF”
indicator lights“AIR BAG ON”
SRS warning lightOff
Driver’s and front passenger’s seat belt
reminder lightOff*2 or
flashing
*3
DevicesFront passenger airbagActivatedFront passenger knee airbag
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF”
indicator lights“AIR BAG
OFF” or
“AIR BAG ON”
*4
SRS warning lightOff
Driver’s and front passenger’s seat belt
reminder lightOff*2 or
flashing
*3
DevicesFront passenger airbagDeactivated or
activated
*4Front passenger knee airbag
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF”
indicator lights“AIR BAG
OFF”
*6
SRS warning lightOff
Driver’s and front passenger’s seat belt
reminder lightOff*2 or
flashing
*3
DevicesFront passenger airbagDeactivatedFront passenger knee airbag

501-1. For safe use
■Unoccupied
■There is a malfunction in the system
*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 not recognize
him/her as an adult 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: For some children, child in seat, child in booster seat or child in convert-
ible seat, the system may not recognize him/her as a child. Factors
which may affect this can be the physique or posture.
*5: Never install a rear-facing child restraint system on the front passenger
seat. 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 manual on how
to install the child restraint system properly. (P. 58)
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF”
indicator lights“AIR BAG
OFF”
SRS warning light
OffDriver’s and front passenger’s seat belt
reminder light
DevicesFront passenger airbagDeactivatedFront passenger knee airbag
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF”
indicator lights“AIR BAG OFF”
SRS warning light
OnDriver’s and front passenger’s seat belt
reminder light
DevicesFront passenger airbagDeactivatedFront passenger knee airbag