TOYOTA SIENNA 2008 XL20 / 2.G Repair Manual

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2008 SIENNA from Aug. ’08 Prod. (OM45455U)
When installing the cap, turn it clock-
wise until one click is heard, in order
to fully close it. The cap returns slight-
ly when your hand is released from the
cap after closure, however this does
not cause any problems.
If the cap is not installed securely, the
malfunction indicator lamp comes on.
Make sure the cap is tightened securely.
The indicator lamp goes off after driving
several times. If the indicator lamp does
not go off, contact your Toyota dealer as
soon as possible.
CAUTION
Make sure the cap is installed se-
curely to prevent fuel spillage in
the event of an accident.
Use only a genuine Toyota fuel tank
cap for replacement. It is designed
to regulate fuel tank pressure.
NOTICE
To prevent damage to the cap, apply
force only in the turning direction to
the cap. Do not pull or pry it.
Sliding operation
Tilting operation
To operate the moon roof, use the
switch on the overhead console.
The moon roof works when the engine
switch is in the “ON” position.
The sun shade can be opened or closed
by hand.
Sliding operation—
To open: Push the switch on the “SLIDE
OPEN” side.
The roof will fully open automatically. To
stop the roof partway, push the switch on
either the “SLIDE OPEN” or “TILT UP”
side quickly.
When you quickly push and release the
switch, the moon roof will open while the
switch is being pushed and stop when
released.
The sun shade will be opened together
with the roof.
When the moon roof is opened fully, the
deflector will raise to reduce the entering
of the strong wind. The angle of the de-
flector will be adjusted according to the
vehicle speed.
To close: Push the switch on the “TILT
UP” side.
Electric moon roof

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2008 SIENNA from Aug. ’08 Prod. (OM45455U)
The roof will fully close automatically. To
stop the roof partway, push the switch on
either the “SLIDE OPEN” or “TILT UP”
side quickly.
When you quickly push and release the
switch, the moon roof will close while the
switch is being pushed and stop when
released.
Tilting operation—
To tilt up: Push the switch on the “TILT
UP” side.
The roof will fully tilt up automatically. To
stop the roof partway, push the switch on
either the “SLIDE OPEN” or “TILT UP”
side quickly.
When you quickly push and release the
switch, the moon roof will tilt up while the
switch is being pushed and stop when
released.
To tilt down: Push the switch on the
“SLIDE OPEN” side.
The roof will fully tilt down automatically.
To stop the roof partway, push the switch
on either the “SLIDE OPEN” or “TILT UP”
side quickly.
When you quickly push and release the
switch, the moon roof will tilt down while
the switch is being pushed and stop when
released.Key off operation:
If both front doors are
closed, it works for 43 seconds even after
the engine switch is turned off. It stops
working when either front door is opened.
Jam protection function:
If something gets caught between the
moon roof and frame during slide clos-
ing operation, the moon roof stops and
opens half way, and the deflector stops
and raises fully.
If something gets caught between the
moon roof and frame during tilting
down operation, the moon roof stops
and opens fully.
If the moon roof receives a strong impact,
this function may work even if nothing is
caught. Make sure that the moon roof opens and
closes automatically. If the moon roof can-
not be operated properly, have it checked
by your Toyota dealer.
CAUTION
To avoid death or serious injury, you
must do the following.
While the vehicle is moving, always
keep the heads, hands and other
parts of the bodies of all occupants
away from the roof opening. Other-
wise, they could be seriously in-
jured if the vehicle stops suddenly
or if the vehicle is involved in an
accident.
Before you close the moon roof,
always make sure there is nobody
around the moon roof. You must
also make sure nobody places his
or her head, hands and other parts
of the body in the roof opening. If
someone’s neck, head or hands get
caught in the closing roof, it could
result in death or serious injury.
When anyone closes the moon roof,
first make sure it is safe to do so.

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Be sure to remove the key from the
engine switch when you leave your
vehicle.
Never leave anyone (particularly a
small child) alone in your vehicle,
especially with the key still inserted
in the engine switch. Otherwise, he/
she could use the power window
switches and get trapped in a win-
dow. Unattended person (particular-
ly a small child) can be involved in
a serious accident.
Never sit on top of the vehicle
around the roof opening.
Never try jamming any part of your
body to activate the jam protection
function intentionally, as it could re-
sult in a serious injury.
The jam protection function may
not work if something gets caught
just before the moon roof is fully
closed.

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2008 SIENNA from Aug. ’08 Prod. (OM45455U)

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OPERATION OF INSTRUMENTS AND
CONTROLS
Occupant restraint systems
Seats58
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Front seats 58
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Driving position memory system 65
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Rear seats 67
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Head restraints 106
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Armrests 107
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Seat heaters 107
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Seat belts 108
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SRS airbags 120
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Child restraint 139
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SECTION 1 3

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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 any passengers to sit on
top of a foldeddown seatback, or
in the luggage compartment or car-
go area. Persons not properly
seated and/or not properly re-
strained by seat belts can be se-
verely injured in the event of emer-
gency braking or a collision.
During driving, do not allow any
passengers to stand up or move
around between seats. Otherwise,
severe injuries can occur in the
event of emergency 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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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.
Front seats (with SRS side airbags)
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 the seats with side
airbags. Such change may prevent
the side airbag system from activat-
ing correctly, disable the system or
cause the side airbags to inflate ac-
cidentally, resulting in death or seri-
ous injury.
CAUTION
Do not adjust the seat while the
vehicle is moving as the seat may
unexpectedly move and cause the
driver to lose control of the vehicle.
Be careful that the seat does not
hit a passenger 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.
—Seat adjustment precautions

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2008 SIENNA from Aug. ’08 Prod. (OM45455U)
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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2008 SIENNA from Aug. ’08 Prod. (OM45455U)
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 serious injury.
4. SEAT LUMBAR SUPPORTADJUSTING KNOB
To change the amount of lumbar 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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2008 SIENNA from Aug. ’08 Prod. (OM45455U)
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 serious injury.
3. SEAT LUMBAR SUPPORTADJUSTING SWITCH
Press either side of the switch.
The amount of lumbar support will change
while the switch is pressed.
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 serious injury.
—Adjusting front passenger ’s
seat (manual seat)