2009 Cadillac STS-V Owner's Manual - Page 412

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. See Run-Flat Tires (STS-V) on page 5-62 and Tire Pressure Monitor System on page 5-66, for additional information. { 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. { 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. 5-86