Cadillac 2009 STS, Owner'S Manual

Page: 412 / 514

Run-Flat Tires (STS-V)
If this vehicle has run-flat tires, there is no spare tire
and no tire changing equipment. Run-flat tires can
operate effectively with no air pressure for a limited
distance and speed. These tires perform so well without
any air pressure that a Tire Pressure Monitor (TPM)
is used to alert you when there is a low tire condition.
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CAUTION:
When the low tire warning light is displayed
on the instrument panel cluster, your vehicle’s
handling capabilities will be reduced during severe
maneuvers. If you drive too fast, you could lose
control of your vehicle. You or others could be
injured. Do not drive over 55 mph (90 km/h)
when the low tire warning light is displayed.
Drive cautiously and check your tire pressures
as soon as you can.
See Run-Flat Tires (STS-V) on page 5-62 and Tire
Pressure Monitor System on page 5-66, for additional
information.
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CAUTION:
Special tools and procedures are required to
service a run-flat tire. If these special tools and
procedures are not used you or others could
be injured and the vehicle could be damaged.
Always be sure the proper tools and procedures,
as described in the service manual, are used.
To order a service manual see Service Publications
Ordering Information on page 7-15.
5-86