Lexus 2003 SC430 Owner's Manual page 260

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 "Checking
and replacing tires on page 323.)
CAUTION
D The compact spare tire was designed especially for
your Lexus. Do not use it on any other vehicle.
D Do not use more than one compact spare tire at the
same time.
D The pressure for the compact spare tire must be 420
2
kPa (4.3 kgf/cm , 4.2 bar, 60 psi).
D Do not exceed 80 km/h (50 mph) when driving with the
compact spare tire.
D The standard tire should be repaired and reinstalled
as soon as possible.
D 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 obstacles
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.
INFORMATION
As the spare tire is not equipped with the tire pressure
sensor, low pressure of the spare tire will not be warned.
Changing procedure
40sa27a
" 1 Wrench
2 Jack handle
4 Allen wrench
1. Get the tool, jack and spare tire.
To prepare yourself for an emergency, you should familiarize
yourself with the use of the jack and each tool, and their
storage locations.
The air pressure gauge is located in the tool bag. The Allen
wrench under the tool bag is provided to close the retractable
hardtop manually in case the retractable hardtop does not
close. The towing eyelet is needed in emergency towing.
2003 SC430 from May '03 Prod. (OM24449U)
IN CASE OF AN EMERGENCY
3 Towing eyelet
5 Tool bag 6 Jack 7 Spare tire
243