Toyota 2006 Sienna Owner's Manual page 221

For details about the run- flat tires, see
"Run- flat tires" on page 476 in Section
7- 2.
If the warning light blinks once every
second:
The low tire pressure warning system may
be malfunctioning. Contact your Toyota
dealer.
If the warning light blinks twice every
second:
The low tire pressure warning system
needs to be initialized. Reset the system
with the tire pressure warning system re-
set switch. (To reset the system, see
"TIRE PRESSURE WARNING SYSTEM
RESET SWITCH".)
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 inflation pres-
sure is low, or it may come on when
the tire inflation pressure is actually
normal.
D The tread wear is uneven among the
tires.
D
A compact spare tire, snow tires, or
tire chains are used.
210
06 SIENNA_U (L/O 0603)
D The tire inflation pressure is excessive-
ly higher than specified, or tire inflation
pressure suddenly drops due to burst-
ing or other causes.
D
The vehicle is driven on a slippery
road surface such as rough or frozen
roads.
D 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.
D
The tires differ in tread pattern or
manufacturer.
D The tires are not the specified size.
D The tread wear is very different among
the installed tires.
D
The pressure of two or more tires
drops at the same time.
D Rapid acceleration/deceleration
sharp turns is continue.
D
Towing a trailer.
D The loading is over the limit or imbal-
anced.
D Initialization was not performed correct-
ly after replacing or rotating tires or
wheels.
D Vehicles with vehicle stability control
system—The outside temperature is be-
low 0_C (32_F) or above 40_C (104_F).
CAUTION
When the tire pressure warning light
comes on, observe the following in-
structions:
D Vehicles with the standard tires—
Adjust the tire inflation pressure to
the specified level as soon as pos-
sible.
D 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).
D Avoid abrupt steering wheel maneu-
or
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.
2006 SIENNA from March '06 Prod. (OM45443U)