Lexus RX330 2005 - Tire Pressure Warning System Reset Switch

STARTING AND DRIVING
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If you have a flat tire, replace it with the spare tire. For details,
see “If you have a flat tire” on page 500.
 If the warning light blinks once every second: The low
tire pressure warning system may be malfunctioning.
Contact your Lexus 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 reset
switch. (To reset the system, see “Tire pressure warning
system reset switch”.)
The tire pressure warning system does not function
properly under certain circumstances. In the following
cases, the low tire pressure warning light may not come
on even if the tire inflation pressure is low, or it may come
on when the tire inflation pressure is actually normal.
 A compact spare tire, snow tires, or tire chains are used.
 The tire inflation pressure is excessively higher than
specified, or tire inflation pressure suddenly 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.
 Rapid acceleration/deceleration or sharp turns is continue.
 Towing a trailer.
 The loading is over the limit or imbalanced.
 Initialization was not performed correctly after replacing or
rotating tires or wheels.
 The outside temperature is below 0C (32F) or above
40C (104F).
CAUTION
When the tire pressure warning light comes on, observe
the following instructions:
 Adjust the tire inflation pressure to the specified level
as soon as possible.
 Avoid abrupt steering wheel maneuvering and
braking when the tire pressure warning light comes
on. If the vehicle tires deteriorate, you could lose
control of the steering wheel or the brakes, causing
death or serious injury.