TOYOTA SIENNA 2004 XL20 / 2.G Repair Manual

04 SIENNA_U (L/O 0408)
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2004 SIENNA from Aug. ’04 Prod. (OM45422U)
OPERATION OF INSTRUMENTS AND
CONTROLS
Seats, Seat belts, Steering wheel and Mirrors
Seats56
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Front seats 56
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Rear seats 62
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Head restraints 93
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Armrests 93
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Seat heaters 94
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Seat belts 95
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SRS driver airbag and front passenger airbag 106
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SRS side airbags and curtain shield airbags 11 4
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Child restraint 121
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Tilt and telescopic steering wheel 143
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Outside rear view mirrors 144
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Anti −glare inside rear view mirror 146
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Auto anti −glare inside rear view mirror 146
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Vanity mirrors 147
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SECTION 1 3

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2004 SIENNA from Aug. ’04 Prod. (OM45422U)
While the vehicle is being driven, all ve-
hicle occupants should have the seatback
upright, sit well back in the seat and prop-
erly wear the seat belts provided.
CAUTION
Do not drive the vehicle unless the
occupants are properly seated. Do
not allow sitting on top of a
foldeddown seatback, or in the
luggage compartment or cargo area.
Persons not properly seated and/or
properly restrained by seat belts
can be severely injured in the event
of emergency braking or a collision.
During driving, do not allow pas-
sengers to stand up or move
around between seats. Severe inju-
ries can occur in the event of emer-
gency braking or a collision.
Driver seat
CAUTION
The SRS driver airbag deploys with
considerable force, and can cause
death or serious injury especially if
the driver is very close to the airbag.
The National Highway Traffic Safety
Administration (“NHTSA”) advises:
Since the risk zone for driver airbag
is the first 50—75 mm (2—3 in.) of
inflation, placing yourself 250 mm (10
in.) from your driver airbag provides
you with a clear margin of safety.
This distance is measured from the
center of the steering wheel to your
breastbone. If you sit less than 250
mm (10 in.) away now, you can
change your driving position in sever-
al ways:
Move your seat to the rear as far
as you can while still reaching the
pedals comfortably.
Slightly recline the back of the
seat. Although vehicle designs vary,
many drivers can achieve the 250
mm (10 in.) distance, even with the
driver seat all the way forward, sim-
ply by reclining the back of the
seat somewhat. If reclining the back
of your seat makes it hard to see
the road, raise yourself by using a
firm, nonslippery cushion, or raise
the seat if your vehicle has that
feature.
If your steering wheel is adjustable,
tilt it downward. This points the air-
bag toward your chest instead of
your head and neck.
The seat should be adjusted as rec-
ommended by NHTSA above, while
still maintaining control of the foot
pedals, steering wheel, and your view
of the instrument panel controls.
Seats Front seats—
—Front seat precautions

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2004 SIENNA from Aug. ’04 Prod. (OM45422U)
Front passenger seat
CAUTION
The SRS front passenger airbag also
deploys with considerable force, and
can cause death or serious injury es-
pecially if the front passenger is very
close to the airbag. The front passen-
ger seat should be as far from the
airbag as possible with the seatback
adjusted, so the front passenger sits
upright.
CAUTION
The SRS side airbags are installed in
the driver and front passenger seats.
Observe the following precautions.
Do not lean against the front door
when the vehicle is in use, since
the side airbag inflates with consid-
erable speed and force. Otherwise,
you may be killed or seriously in-
jured.
Do not use seat accessories which
cover the area where the side air-
bags inflate. Such accessories may
prevent the side airbags from acti-
vating correctly, causing death or
serious injury.
Do not modify or replace the seats
or upholstery of front seats
equipped with side airbags. Such
changes may prevent the side air-
bags from activating correctly, dis-
able the system or cause the side
airbags to inflate accidentally, re-
sulting in death or serious injury.
CAUTION
Adjustments should not be made
while the vehicle is moving, as the
seat may unexpectedly move and
cause the driver to lose control of
the vehicle.
When adjusting the seat, be careful
that the seat does not hit a passen-
ger or luggage.
After adjusting the seat position, re-
lease the lever and try sliding the
seat forward and backward to make
sure it is locked in position.
After adjusting the seatback, push
your body back against the seat to
make sure the seat is locked in
position.
Do not put objects under the seats
except for putting them in the auxil-
iary box. Otherwise, the objects
may interfere with the seatlock
mechanism or unexpectedly push
up the seat position adjusting lever
and the seat may suddenly move,
causing the driver to lose control of
the vehicle.
—Front seat precautions
(on vehicles with SRS side
airbags) —Seat adjustment precautions

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2004 SIENNA from Aug. ’04 Prod. (OM45422U)
While adjusting the seat, do not put
your hands under the seat or near
the moving parts. Otherwise, your
hands or fingers may be caught and
injured.1. SEAT POSITION ADJUSTING LEVER
Hold the center of the lever and pull it
up. Then slide the seat to the desired
position with slight body pressure and
release the lever.
2. SEAT HEIGHT ADJUSTING KNOB
To change the seat height, turn the
knob either way.
3. SEATBACK ANGLE ADJUSTING LEVER
Lean forward and pull the lever up.
Then lean back to the desired angle
and release the lever.
—Adjusting driver’s seat
(manual seat)

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2004 SIENNA from Aug. ’04 Prod. (OM45422U)
CAUTION
Avoid reclining the seatback any
more than needed. The seat belts pro-
vide maximum protection in a frontal
or rear collision when the driver and
the front passenger are sitting up
straight and well back in the seats. If
you are reclined, the lap belt may
slide past your hips and apply re-
straint forces directly to the abdomen
or your neck may contact the shoul-
der belt. In the event of a frontal
collision, the more the seat is re-
clined, the greater the risk of death
or personal injury.
4. SEAT LUMBAR SUPPORTADJUSTING KNOB
To change the amount of lumber sup-
port, turn the knob either way.
1. SEAT POSITION, SEAT CUSHION ANGLE AND SEAT HEIGHT
ADJUSTING SWITCH
Move the control switch in the desired
direction.
Releasing the switch will stop the seat at
that position.
Do not place anything under the front
seats, as this might interfere with the seat
movement. 2. SEATBACK ANGLE ADJUSTING SWITCH
Move the control switch in the desired
direction.
Releasing the switch will stop the seat-
back at that position.
—Adjusting driver’s seat
(power seat)

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2004 SIENNA from Aug. ’04 Prod. (OM45422U)
CAUTION
Avoid reclining the seatback any
more than needed. The seat belts pro-
vide maximum protection in a frontal
or rear collision when the driver and
the front passenger are sitting up
straight and well back in the seats. If
you are reclined, the lap belt may
slide past your hips and apply re-
straint forces directly to the abdomen
or your neck may contact the shoul-
der belt. In the event of a frontal
collision, the more the seat is re-
clined, the greater the risk of death
or personal injury.
3. SEAT LUMBAR SUPPORTADJUSTING KNOB
To change the amount of lumber sup-
port, turn the knob either way.
1. SEAT POSITION ADJUSTING LEVER
Hold the center of the lever and pull it
up. Then slide the seat to the desired
position with slight body pressure and
release the lever.
2. SEATBACK ANGLE ADJUSTING LEVER
Lean forward and pull the lever up.
Then lean back to the desired angle
and release the lever.
CAUTION
Avoid reclining the seatback any
more than needed. The seat belts pro-
vide maximum protection in a frontal
or rear collision when the driver and
the front passenger are sitting up
straight and well back in the seats. If
you are reclined, the lap belt may
slide past your hips and apply re-
straint forces directly to the abdomen
or your neck may contact the shoul-
der belt. In the event of a frontal
collision, the more the seat is re-
clined, the greater the risk of death
or personal injury.
—Adjusting front passenger ’s
seat

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2004 SIENNA from Aug. ’04 Prod. (OM45422U)
3. SEATBACK FOLDING LEVER (onsome models)
The front passenger ’s seat can be
folded down using this lever.
1. Pull the seatback angle adjusting le- ver and raise the seatback to its up-
right position.2. Pull the seatback folding lever andfold the seatback down.
—Folding front passenger ’s
seat

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2004 SIENNA from Aug. ’04 Prod. (OM45422U)
You can use the seatback as a temporary
table only when the vehicle is stopped.
CAUTION
To avoid serious injury:
Do not set up the seatback table
while the vehicle is moving.
Do not sit on the folded seatback.
Make sure the front passenger ’s
seat is securely locked in sliding
position when you set the seat as
a temporary table.
NOTICE
To prevent damage to the seat, avoid
putting heavy loads on the temporary
table.
CAUTION
Adjustment should not be made
while the vehicle is moving.
When adjusting the seat, be careful
that the seat does not hit a passen-
ger or luggage.
After adjusting the seat position,
try sliding it forward and backward
to make sure it is lock in position.
After adjusting the seatback, push
back your body to make sure it is
locked in position.
Rear seats—
—Rear seat precautions

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2004 SIENNA from Aug. ’04 Prod. (OM45422U)
When returning seats to their origi-
nal position, observe the following
precautions in order to prevent per-
sonal injury in a collision or sud-
den stop:
Be careful not to get your hands or
feet pinched in the seat.
Make sure the seat is securely
locked by pushing forward and rear-
ward on the top of the seatback or
by trying to pull up the edge of the
bottom cushion. Failure to do so
will prevent the seat belt from oper-
ating properly.
Make sure the seat belts are not
twisted or caught under the seat
and are arranged in their proper
position and are ready to use.
Folding the seats up will enlarge the lug-
gage compartment. See “—Stowage pre-
cautions” on page 389 in Section 2 for
precautions when loading luggage.
Outer seatCenter seat
—Adjusting second seats

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2004 SIENNA from Aug. ’04 Prod. (OM45422U)
1. SEAT POSITION ADJUSTING LEVER
Hold the center of the lever and pull it
up. Then slide the seat to the desired
position with slight body pressure and
release the lever.
2. SEATBACK ANGLE ADJUSTING LEVER/STRAP (from front)
Lean forward and pull the lever or strap
toward you. Then lean back to the de-
sired angle and release the lever or
strap.
3. SEATBACK ANGLE ADJUSTING STRAP (from rear)
Pull the strap and push the seatback
forward or pull it backward to the de-
sired angle and release the strap.CAUTION
Avoid reclining the seatback any
more than needed. The seat belts pro-
vide maximum protection in a frontal
or rear collision when the passengers
are sitting up straight and well back
in the seats. If you are reclined, the
lap belt may slide past your hips and
apply restraint forces directly to the
abdomen or your neck may contact
the shoulder belt. In the event of a
frontal collision, the more the seat is
reclined, the greater the risk of death
or personal injury.
For access to the third seat, perform
the following procedure.
Fold down the seatback while pulling the
seatback angle adjusting lever or strap
and swing up the seat.
After passengers are in, return the seat
until it locks securely, and lift up the seat
back by pulling the lever or strap.
—Tumbling second seat for
third seat entry