2003 TOYOTA SIENNA spare tire

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The tire pressure warning system does
not function properly under certain cir-
cumstances. In the following cases, the
low tire pressure warning light may not
come on even if the tire pressure is
low, or it may come on when the tire
pressure is actually normal.
The tread wear is uneven among the
installed tires.
A compact spare tire, snow tires, or
tire chains are used.
The tire pressure is excessively higher
than specified, or tire pressure is sud-
denly reduced due to bursts or other
causes.
The vehicle is driven on a slippery
road surface such as rough road and
frozen road.
The vehicle speed is less than 30 km/h
(19 mph) or more than 100 km/h (62
mph), and the driving duration is less
than 5 minutes.
TIRE PRESSURE WARNING SYSTEM
RESET SWITCH
Pushing this reset switch after replac-
ing or rotating tires or wheels memo-
ries the present tire condition as a
standard.
After replacing or rotating the tires or
wheels, perform the initial adjustment as
follows.1. Park the vehicle at a safe place and apply the parking brake. Stop the en-
gine.
2. Adjust pressures of all the installed tires to the specified level. (See “Tires”
in Section 8.)
3. Turn the ignition key to “ON”. 4. With the vehicle stopped, push the re-
set switch on the left lower instrument
panel and hold it until the low tire
pressure warning light blinks for three
times.
5. The initial adjustment is completed af- ter driving at the speeds of 30 km/h
(19 mph) or over for about total 8
hours, when the tire pressure warning
system detects the normal tire pressur-
es.
Do not push the reset switch without ad-
justing the tire pressure to the specified
level. Otherwise, the low tire pressure
warning light may not come on even if the
tire pressure is low, or it may come on
when the tire pressure is actually normal.
If you push the reset switch while the
vehicle is moving, the initial adjustment is
not performed.
If the low tire pressure warning light does
not blink when you push and hold the
reset switch, have the low pressure warn-
ing system checked at your Toyota dealer.

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Stop the vehicle on a level firm
ground, firmly set the parking brake
and put the transmission in “P”.
Block the wheel diagonally opposite
to the one being changed if neces-
sary.
Make sure to set the jack properly
in the jack point. Raising the ve-
hicle with jack improperly posi-
tioned will damage the vehicle or
may allow the vehicle to fall off the
jack and cause personal injury.
Never get under the vehicle when
the vehicle is supported by the jack
alone.
Use the jack only for lifting your
vehicle during wheel changing.
Do not raise the vehicle with some-
one in the vehicle.
When raising the vehicle, do not
put an object on or under the jack.
Raise the vehicle only high enough
to remove and change the tire.
NOTICE
Do not continue driving with a de-
flated tire. Driving even a short dis-
tance can damage a tire and wheel
beyond repair.
Compact spare tire
The compact spare tire is designed for
temporary emergency use only.
The compact spare tire is identified by the
distinctive wheel design and color and
special wording “TEMPORARY USE ONLY”
molded into the side wall of the tire.
The standard tire should be repaired and
replaced as soon as possible.
The compact spare tire saves space in
your luggage compartment, and its lighter
weight helps to improve fuel economy and
permits easier installation in case of a flat
tire.

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The compact spare tire can be used many
times, if necessary. It has tread life of up
to 4800 km (3000 miles) depending on
road conditions and your driving habits.
When tread wear indicators appear on the
tire, replace the tire.
See also the tire section in Section 72
for details on the tread wear indicators
and other service information.
CAUTION
The compact spare tire was de-
signed especially for your Toyota.
Do not use it on any other vehicle.
Do not exceed 80 km/h (50 mph)
when driving with the compact
spare tire.
Avoid sudden acceleration, sudden
deceleration and sharp turns with
the compact spare tire.
NOTICE
Your ground clearance is reduced
when the compact spare tire is
installed so avoid driving over ob-
stacles and drive slowly on rough,
unpaved roads and speed bumps.
Also, do not attempt to go through an
automatic car wash as the vehicle
may get caught, resulting in damage.
Right side power sliding door models
Left and right side power sliding door
models
—Required tools and spare
tire

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1. Get the required tools and sparetire.
1. Jack
2. Jack handle
3. Wheel nut wrench
4. Spare tire
To prepare yourself for an emergency, you
should fam iliarize yourself with the use of
the jack, each of the tools and their stor-
age locations.
Turn the jack joint by hand.
To remove: Turn the joint in direction 1
until the jack is free.
To store: Turn the joint in direction 2 until
the jack is firmly secured to prevent it
flying forward during a collision or s udden
braking.To remove the spare tire;
Open the back door and you will find the
spare tire clamp bolt near the back door
latch.
1. Loosen the spare tire clamp bolt by turning it counterclockwise with the
wheel nut wrench.
2. After the tire is lowered completely to the ground, remove the holding brack-
et.
Compact spare tire—
When storing the spare tire, put it in place
with the inner side of the wheel facing up.
Except compact spare tire—
When storing the spare tire, put it in place
with the outer side of the wheel facing up.

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Then secure the tire by repeating the
above removal steps in reverse order to
prevent it from flying forward during a
collision or sudden braking.
Make sure to pull the tire straight up with-
out catching on any other part.
Do not overtighten the bolt. Stop turning
it when you begin to feel resistance on
your hand.
After storing the tire, make sure it is se-
curely locked by pushing it forward and
rearward.
NOTICE
To secure spare tire clamp bolt:
Do not use impact wrench, but
wheel nut wrench.
 Tighten the spare tire clamp bolt to
hold the spare wheel carrier by the
hook securely.
2. Block the wheel diagonally opposite
the flat tire to keep the vehicle from
rolling when it is j acked up.
When blocking the wheel, place a wheel
block from the front for the front wheels
or from the rear for the rear wheels.Steel wheels
Aluminium wheels
—Blocking the wheel —Removing wheel ornament

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5. Position the jack at the correct jackpoint as shown.
Make sure the jack is positioned on a
level and solid place.
CAUTION
When jacking up the vehicle, turn off
the power sliding door system and
close the sliding door completely.
6. After making sure that no one is in the vehicle, raise it high enough so
that the spare tire can be installed.
Remember you will need more ground
clearance when putting on the spare tire
than when removing the flat tire.
To raise the vehicle, insert the jack handle
into the jack (it is a loose fit) and turn it
clockwise. As the jack touches the vehicle
and begins to lift, doublecheck that it is
properly positioned.
CAUTION
Never get under the vehicle when the
vehicle is supported by the jack
alone.
—Positioning the jack —Raising your vehicle

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7. Remove the wheel nuts and changetires.
Lift the flat tire straight off and put it
aside.
Roll the spare wheel into position and
align the holes in the wheel with the bolts.
Then lift up the wheel and get at least the
top bolt started through its hole. Wiggle
the tire and press it back over the other
bolts.Before putting on wheels, remove any cor-
rosion on the mounting surfaces with a
wire brush or such. Installation of wheels
without good metaltometal contact at the
mounting surface can cause wheel nuts to
loosen and eventually cause a wheel to
come off while driving.8. Reinstall all the wheel nuts finger tight.
Reinstall the wheel nuts (tapered end in-
ward) and tighten them as much as you
can by hand. Press back on the tire and
see if you can tighten them more.
—Changing wheels —Reinstalling wheel nuts

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Steel wheels
Aluminum wheels
10. Reinstall the wheel ornament.1. Put the wheel ornament into position.
Steel wheel models, align the cutout of
the wheel ornament with the valve stem
as shown. 2. Then tap it firmly with the side or heel of your hand to snap it into place.
CAUTION
Take due care in handling the orna-
ment to avoid unexpected personal
injury.
11. Check the air pressure of the re- placed tire.
Adjust the air pressure to the specification
designed in Section 8. If the pressure is
lower, drive slowly to the nearest service
station and fill to the correct pressure.
Do not forget to reinstall the tire inflation
valve cap as dirt and moisture could get
into the valve core and possibly cause air
leakage. If the cap is missing, have a new
one put on as soon as possible.
12. Restow all the tools, jack and flat tire securely.
As soon after changing wheels as pos-
sible, tighten the wheel nuts to the torque
specified in Section 8 with a torque
wrench. Have a technician repair the flat
tire.
Vehicles with a spare tire of the same
size as the installed tires—
13. Push the tire pressure warning sys- tem reset switch.
Initial adjustment of the tire pressure
warning system is necessary after you
have replaced your tires or wheels. See
“Tire pressure warning system” in Section
16.
—Reinstalling wheel ornament —After changing wheels