2001 TOYOTA SEQUOIA Tensioner

05_SEQUOIA_U (L/O 0408)
vii
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
Spark ignition system of your
To y o t a
The spark ignition system in your Toyota meets all re-
quirements of the Canadian Interference±Causing Equip-
ment Standard.
Installation of a mobile
two±way radio system
As the installation of a mobile two±way radio system in
your vehicle could affect electronic systems such as
multiport fuel injection system/sequential multiport fuel
injection system, electronic throttle control system,
cruise control system, anti±lock brake system, traction
control system (two±wheel drive models)/active traction
control system (four±wheel drive models), vehicle stabil-
ity control system, rear height control air suspension
system, tire pressure warning system, SRS airbag sys-
tem and seat belt pretensioner system, be sure to
check with your Toyota dealer for precautionary mea-
sures or special instructions regarding installation.

05_SEQUOIA_U (L/O 0408)
viii
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
Tires and loading on your
To y o t a
Underinflated or overinflated tire pressure and the
excess load may result in the deterioration of
steering ability and braking ability, leading to an
accident. Check the tire inflation pressure periodi-
cally and be sure to keep the load limits given in
this Owner 's Manual. For details about tire inflation
pressure and load limits, see pages 429 and 355.
Scrapping of your Toyota
The SRS airbag and front seat belt pretensioner devices
in your Toyota contain explosive chemicals. If the ve-
hicle is scrapped with the airbags and pretensioners left
as they are, this may cause an accident such as fire.
Be sure to have the systems of the SRS airbag and
seat belt pretensioner removed and disposed of by a
qualified service shop or by your Toyota dealer before
you dispose of your vehicle.

05_SEQUOIA_U (L/O 0408)
83
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
To connect the extender to the seat
belt, insert the tab into the seat belt
buckle so that the ªPRESSº signs on
the buckle release buttons of the ex-
tender and the seat belt are both facing
outward as shown.
You will hear a click when the tab locks
into the buckle.
When releasing the seat belt, press on
the buckle release button on the extender,
not on the seat belt. This helps prevent
damage to the vehicle interior and extend-
er itself.As far as the seat belt extender on the
front passenger side is concerned, do not
fail to disconnect the extender from the
seat belt after the above operation in or-
der to activate the front passenger airbag
correctly when getting into the vehicle
next time.
When not in use, remove the extender
and store in the vehicle for future use.
CAUTION

After inserting the tab, make sure
the tab and buckle are locked and
that the lap and shoulder portions
of the belt and the seat belt extend-
er are not twisted.

Do not insert coins, clips, etc. in
the buckle as this may prevent you
from properly latching the tab and
buckle.

If the seat belt does not function
normally, immediately contact your
Toyota dealer. Do not use the seat
until the seat belt is fixed, because
it cannot protect an adult occupant
or your child from injury.
The driver and front passenger seat
belt pretensioners are designed to be
activated in response to a severe fron-
tal impact.
When the sensor detects a severe frontal
impact, the front seat belts are quickly
drawn back by the retractors so that the
belts snugly restrain the occupants.
ÐSeat belt pretensioners

05_SEQUOIA_U (L/O 0408)
84
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
The front passenger 's seat belt pretension-
er will not activate if no passenger is
detected in the front passenger seat by
the front passenger occupant classification
system. However, the front passenger 's
seat belt pretensioner may activate if lug-
gage is put on the seat, or the seat belt
is buckled up regardless of the presence
of an occupant in the seat. (As for the
front passenger occupant classification
system, see ªFront passenger occupant
classification systemº on page 102 in this
Section.)
The seat belt pretensioners and SRS air-
bags may not operate together in all colli-
sions.
The seat belt pretensioners will not oper-
ate in a vehicle rollover if the ªRSCA
OFFº indicator light is on. For details, see
ªRoll sensing of curtain shield airbags off
switchº on page 106 in this Section.The seat belt pretensioner system con-
sists mainly of the following components
and their locations are shown in the il-
lustration.
1. Front airbag sensors
2. Front passenger occupant classification
indicator light
3. Front passenger occupant classification
system (ECU and sensors)
4. Seat belt pretensioner assemblies
5. Front passenger 's seat belt buckle
switch
6. Airbag sensor assembly
7. SRS warning light

05_SEQUOIA_U (L/O 0408)
85
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
The seat belt pretensioners are controlled
by the airbag sensor assembly. The airbag
sensor assembly consists of a safing sen-
sor and airbag sensor.
When the seat belt pretensioners are acti-
vated, an operating noise may be heard
and a small amount of non±toxic gas may
be released. This does not indicate that
a fire is occurring. This gas is normally
harmless.
Once the seat belt pretensioners have
been activated, the seat belt retractors
remain locked.
CAUTION
Do not modify, remove, strike or open
the seat belt pretensioner assemblies,
airbag sensor or surrounding area or
wiring. Failure to follow these instruc-
tions may prevent the seat belt pre-
tensioners from activating correctly,
cause sudden operation of the system
or disable the system, which could
result in death or serious injury. Con-
sult your Toyota dealer about any re-
pair and modification.
NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can
interfere with proper operation of the
front seat belt pretensioners in some
cases.

Installation of electronic devices
such as a mobile two±way radio,
cassette tape player or compact
disc player

Repairs on or near the front seat
belt retractor assemblies

Modification of the suspension sys-
tem

Modification of the front end struc-
ture

Attachment of a grille guard (bull
bar, kangaroo bar, etc.), snowplow,
winches or any other equipment to
the front end

Repairs made on or near the front
fenders, front end structure or con-
sole
This indicator comes on when the igni-
tion key is turned to the ªONº position.
It goes off after about 6 seconds. This
means the front seat belt pretensioners
are operating properly.

05_SEQUOIA_U (L/O 0408)
86
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sen-
sors, curtain shield airbag sensors, driv-
er 's seat position sensor, driver 's seat belt
buckle switch, front passenger occupant
classification system and indicator light,
front passenger 's seat belt buckle switch,
seat belt pretensioner assemblies, inflat-
ors, warning light, ªRSCA OFFº indicator
light, interconnecting wiring and power
sources. (For details, see ªService remind-
er indicators and warning buzzersº on
page 162 in Section 1±6.)
If any of the following conditions occurs,
this indicates a malfunction of the airbags
or seat belt pretensioners. Contact your
Toyota dealer as soon as possible.

The light does not come on when the
ignition key is turned to the ªONº posi-
tion or remains on for more than 6
seconds.

The light comes on while driving.

If any seat belt does not retract or can
not be pulled out due to a malfunction
or activation of the relevant seat belt
pretensioner.

The seat belt pretensioner assembly or
surrounding area has been damaged.
In the following cases, contact your Toyota
dealer as soon as possible:

The front of the vehicle (shaded in the
illustration) was involved in an accident
that was not severe enough to cause
the seat belt pretensioners to operate.

Either seat belt pretensioner assembly
or surrounding area is scratched,
cracked, or otherwise damaged.
The SRS (Supplemental Restraint Sys-
tem) front airbags are designed to pro-
vide further protection for the driver
and front passenger in addition to the
primary safety protection provided by
the seat belts.
In response to a severe frontal impact,
the SRS front airbags work together with
the seat belts to help reduce injury by
inflating. The SRS front airbags help re-
duce injuries mainly to the driver's or front
passenger 's head or chest caused by hit-
ting the vehicle interior.
SRS driver airbag and front
passenger airbag

05_SEQUOIA_U (L/O 0408)
88
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
The SRS front airbags are designed to
deploy in severe (usually frontal) colli-
sions where the magnitude and duration
of the forward deceleration of the ve-
hicle exceeds the designed threshold
level.
The SRS front airbags will deploy if the
severity of the impact is above the de-
signed threshold level, comparable to an
approximate 25 km/h (15 mph) collision
when the vehicle has the impact straight
into a fixed barrier that does not move or
deform.
However, this threshold velocity will be
considerably higher if the vehicle strikes
an object, such as a parked vehicle or
sign pole, which can move or deform on
impact, or if the vehicle is involved in an
underride collision (e.g. a collision in
which the front of the vehicle ªunderridesº,
or goes under, the bed of a truck, etc.).
It is possible that in some collisions
where the forward deceleration of the ve-
hicle is very close to the designed thresh-
old level, the SRS front airbags and the
seat belt pretensioners may not activate
together.
Always wear your seat belts properly.
Collision from the sideCollision from the rear
Vehicle rollover
The SRS front airbags are generally not
designed to inflate if the vehicle is in-
volved 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, de-
ployment of the SRS front airbags may
occur.
Hitting a curb,
edge of pavement
or hard surfaceFalling into or
jumping over a
deep hole
Landing hard or vehicle falling
The SRS front airbags may also deploy
if a serious impact occurs to the under-
side of your vehicle. Some examples
are shown in the illustration.

05_SEQUOIA_U (L/O 0408)
92
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
This indicator comes on when the igni-
tion key is turned to the ªONº position.
It goes off after about 6 seconds. This
means the SRS front airbags are oper-
ating properly.This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sen-
sors, curtain shield airbag sensors, driv-
er 's seat position sensor, driver 's seat belt
buckle switch, front passenger occupant
classification system and indicator light,
front passenger 's seat belt buckle switch,
seat belt pretensioner assemblies, inflat-
ors, warning light, ªRSCA OFFº indicator
light, interconnecting wiring and power
sources. (For details, see ªService remind-
er indicators and warning buzzersº on
page 162 in Section 1±6.)
If either of the following conditions occurs,
this indicates a malfunction of the airbags
or seat belt pretensioners. Contact your
Toyota dealer as soon as possible.7

The light does not come on when the
ignition key is turned to the ªONº posi-
tion or remains on for more than 6
seconds.

The light comes on while driving.
The SRS warning light will come on and
front passenger occupant classification in-
dicator light will indicate ªOFFº if there is
a malfunction in the front passenger occu-
pant classification system.
In the following cases, contact your Toyota
dealer as soon as possible:

The SRS front airbags have been in-
flated.

The front of the vehicle (shaded in the
illustration) was involved in an accident
that was not severe enough to cause
the SRS front airbags to inflate.

The pad section of the steering wheel
or front passenger airbag cover
(shaded in the illustration) is scratched,
cracked, or otherwise damaged.