Page 206 of 516

05 SIENNA_U (L/O 0409)
198
2005 SIENNA from Sep. ’04 Prod. (OM45431U)
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
tires.
A compact spare tire, snow tires, or
tire chains are used.
The tire pressure is excessively higher
than specified, or tire pressure sudden-
ly drops due to bursting or other
causes.
The vehicle is driven on a slippery
road surface such as rough or frozen
roads.
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.
The tires differ in tread pattern or
manufacturer.
The tires are not the specified size.
The tread wear is very different among
the installed tires.
The pressure of two or  more tires
drops at the same time.
Rapid acceleration/deceleration or
sharp turns is continue.
Towing a trailer.
The loading is over  the limit or imbal-
anced.
Initialization was not performed correct-
ly after replacing or rotating tires or
wheels.
CAUTION
When the tire pressure warning light
comes on, observe the following in-
structions:
Vehicles with the standard tires—
Adjust the tire pressure to the spe-
cified level as soon as possible.
Vehicles with the run flat tires—
Decelerate as soon as possible to
the lowest appropriate speed that
conditions permit. Do not drive for
longer than 160 km (100 miles) or
over 90 km/h (55 mph).
Avoid abrupt steering wheel maneu-
vering and braking. If  the vehicle
tires deteriorate, you could lose
control of the steering wheel or the
brakes, causing death or serious in-
jury.
Note: The tire pressure warning sys-
tem on your vehicle will  warn you
when one of your tires is significantly
under inflated and when some com-
binations of your tires are significant-
ly under inflated. However,  there are
other combinations of significantly
under inflated tires for which your
tire pressure warning system may not
warm you. These other combinations
are relatively common, accounting for
approximately half the instances in
which vehicles have significantly un-
der inflated tires. For example, your
system may not warm you when both
tires on the same side or  on the
same axle of your vehicle are signifi-
cantly under inflated. It is particularly
important, therefore, for you to check
the tire pressure in all of your tires
regularly and maintain proper pres-
sure. 
     
        
        Page 429 of 516

05 SIENNA_U (L/O 0409)
421
2005 SIENNA from Sep. ’04 Prod. (OM45431U)
1. Reduce your speed gradually,keeping a straight line. Move cau-
tiously off the road to a safe place
well away from the traffic. Avoid
stopping on the center divider of
a highway. Park on a level spot
with firm ground.
2. Stop the engine and turn on your emergency flashers.
3. Firmly set the parking brake and put the transmission in “P”.
4. Have everyone get out of the ve- hicle on the side away from traffic.
5. Read the following instructions thoroughly.
NOTICE
Do not continue driving with a
deflated tire. Driving even a
short distance can damage a
tire and wheel beyond repair.
Some vehicles are equipped with
run flat (RFT) tires. The run flat
tire allows you to continue driving
for up to 160 km (100 miles) at a
speed below 90 km/h (55 mph)
even if any tire goes flat. However,
in some conditions (such as high
temperatures), you could  not con-
tinue driving for up to 160 km (100
miles).
When the tire goes flat or when the
tire pressure is below 100 kPa (1.0
kgf/cm
2 or bar, 15 psi), the tire
must be replaced. If you are not
sure, consult your Toyota dealer.
Do not use the repaired tire. There is an “RFT” or “DSST” mark on
the sidewall of the run
−flat tire.
For details about the run −flat tire, see
“Run −flat tires” on page 477 in Sec-
tion 7 −2.
Vehicles with compact spare tire—
When you replace the tire, see
“—Compact spare tire” through “—Af-
ter changing wheels”, pages 423
through 435 in this Section.
If you have a flat tire—
—Standard tires information —Run flat tires information 
     
        
        Page 432 of 516
05 SIENNA_U (L/O 0409)
424
2005 SIENNA from Sep. ’04 Prod. (OM45431U)
1. Get the required tools andspare tire.
1. Wheel nut wrench
2. Jack handle 
3. Jack
4. Spare tire (vehicle with stan-
dard tires)
To prepare yourself for an emergency,
you should familiarize yourself with
the use of  the jack, each of  the tools
and their storage locations.To remove the tools, turn the knob
counterclockwise and remove the
cover.To remove the jack, turn the jack joint
by hand until the jack becomes free.
—Required tools and spare
tire (all wheel drive models) 
     
        
        Page 433 of 516
05 SIENNA_U (L/O 0409)
425
2005 SIENNA from Sep. ’04 Prod. (OM45431U)
To store the jack, turn the jack joint
until the jack base  fits securely with
the vehicle body.
This prevents the jack from flying for-
ward during a collision or sudden
stop.To remove the wheel nut wrench, first
disengage the upper part of the
wrench from the holding bracket and
remove it.
When storing the wheel nut wrench,
make sure the wr ench is securely
held.To remove the spare tire:
1. Slide the front passenger ’s seat to the front −most lock position and
the right side second seat to the
rear −most lock position so they
will not interfere with the wheel nut
wrench.
Open the right side sliding door
and you will find the flap on the
floor. Pull back the flap to find the
spare tire clamp bolt. 
     
        
        Page 434 of 516

05 SIENNA_U (L/O 0409)
426
2005 SIENNA from Sep. ’04 Prod. (OM45431U)
2. Loosen the spare tire clamp boltby turning it counterclockwise with
the wheel nut wrench.3. After the tire is lowered completelyto the ground, remove the holding
bracket.
When storing the spare tire, put it in
place with the outer side of the wheel
facing up. Then secure the tire, taking
care that the tire goes straight up
without catching on any other part, to
prevent it from flying forward during
a collision or sudden braking.
As the tire carrier is designed for the
compact spare tire, the standard tire
cannot be stored there.
CAUTION
Do not remove the spare tire
when jacking up the vehicle. The
tire carrier and the spare tire may
interfere with the jack and cause
a serious accident.
NOTICE
 To secure spare tire clamp
bolt: 
Do not use impact wrench,
but wheel nut wrench.
 After taking out or stowing
the spare tire, make sure to
secure the tire carrier by
tightening the clamp bolt to
prevent the holding bracket
from hitting the under body
of the vehicle during driving.
 Do not store the flat spare
tire with the tire carrier so it
may not be held securely. 
     
        
        Page 435 of 516
05 SIENNA_U (L/O 0409)
427
2005 SIENNA from Sep. ’04 Prod. (OM45431U)
1. Get the required tools andspare tire.
1. Wheel nut wrench
2. Jack handle
3. Jack 
4. Spare tire
To prepare yourself for an emergency,
you should familiarize yourself with
the use of  the jack, each of  the tools
and their storage locations.To remove the tools, turn the knob
counterclockwise and remove the
cover.To remove the jack, turn the jack joint
by hand until the jack becomes free.
—Required tools and spare
tire (all wheel drive models) 
     
        
        Page 436 of 516
05 SIENNA_U (L/O 0409)
428
2005 SIENNA from Sep. ’04 Prod. (OM45431U)
To store the jack, turn the jack joint
until the jack base  fits securely with
the vehicle body.
This prevents the jack from flying for-
ward during a collision or sudden
stop.To remove the wheel nut wrench, first
disengage the upper part of the
wrench from the holding bracket and
remove it.
When storing the wheel nut wrench,
make sure the wr ench is securely
held.To remove the spare tire:
1. Remove the lid.
2. Loosen the nut and remove it.
3. Remove the spare tire cover.
4. Loosen the bolt, then remove the bolt and spacer.
Then take the spare tire out of the
vehicle. 
     
        
        Page 437 of 516
05 SIENNA_U (L/O 0409)
429
2005 SIENNA from Sep. ’04 Prod. (OM45431U)
When storing the spare tire, put it in
place with the outer side of the wheel
facing up. Then secure the tire by re-
peating the above removal steps in
reverse order to prevent it from flying
forward during a collision or sudden
braking.
2. Block the wheel diagonally op-posite the flat tire to keep the
vehicle from rolling when it is
jacked up.
When blocking the wheel, place a
wheel block in front of one of the front
wheels or behind one of the rear
wheels.3. Remove the wheel ornament.
Pry off the wheel ornament, using the
beveled end of the wheel nut wrench
as shown.
CAUTION
Do not try to pull off the orna-
ment by hand. Take due care in
handling the ornament to avoid
unexpected personal injury.
—Blocking the wheel —Removing wheel ornament
(steel wheels)