Tire Pressure Warning System - Toyota Sienna 2000 Operating Manual

Tire pressure warning system

The tire pressure warning system is de-
signed to provide warning when tire
pressure of any one of the tires is criti-
cally reduced while the vehicle is mov-
ing. The low tire pressure warning light
comes on to inform you that such low
tire pressure may hamper driving.
This system is not designed to operate
when the vehicle is stopped. Therefore,
check the tire pressures regularly. The
recommended cold tire pressures, tire size
and the vehicle capacity weight are on the
tire pressure label. (For instruction, see
"Checking tire pressure" in Section 7- 2.)
Installed tires should be of the specified
size. They should be of the same size
and construction. If tires other than of the
specified size are used, or if tires of dif-
ferent sizes or constructions are mixed,
the tire pressure warning system will not
function properly.
180
00 SIENNA(U)
LOW TIRE PRESSURE WARNING LIGHT
This light comes on when the ignition key
is turned to the "ON" position. It goes off
after a few seconds. This indicates that
the tire pressure warning system is func-
tioning properly.
If the low tire pressure warning light
comes on while driving, adjust
pressure to the specified level. (See
"Tires" in Section 8.)
After the tire pressure is adjusted, the
light should go off after driving at about
more than 30 km/h (19 mph) for some
time. If the light still remains, have the
tire pressure warning system checked at
your Toyota dealer.
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.
D
If the tread wear is uneven among the
installed tires,
D
If a compact spare tire, snow tires, or
tire chains are used,
D
If the tire pressure is excessively high-
er than specified, or if tire pressure is
suddenly reduced due to bursts or oth-
er causes,
D
If the vehicle is driven on a slippery
road surface such as rough road and
frozen road,
D
If the vehicle speed is less than 30
km/h (19 mph) or more than 100 km/h
(62 mph), and if the driving duration is
tire
less than 5 minutes,