2008 Pontiac Grand Prix Owner's Manual - Page 356
2008 Pontiac Grand Prix Manual
Page 356 highlights
If a Tire Goes Flat (GXP) GXP models have no spare tire, no tire changing equipment, and no place for storing a spare or flat tire. If a tire goes flat, avoid further tire and wheel damage by driving slowly to a level place and stopping. Then do this: 1. Turn on the hazard warning flashers. See Hazard Warning Flashers on page 3-6. 2. Park your vehicle. Set the parking brake firmly and put the shift lever in PARK (P). See Shifting Into PARK (P) on page 2-34 for additional information. 3. Turn off the engine. 4. Inspect the flat tire. If the tire has been separated from the wheel or has damaged sidewalls or large tears that allow rapid air loss, call a tire repair facility. See Roadside Assistance Program on page 7-6. If the flat tire is due to a slow leak caused by a nail or other similar road hazard, the tire inflator kit may be used to temporarily repair the damaged tire. The kit uses a liquid tire sealant to seal small punctures in the tread area of the tire. The flat tire is then inflated to at least 30 psi (207 kPa) and driven to evenly distribute the tire sealant. The tire pressure is checked after driving for a maximum of five miles (8.0 km) to see if the slow leak has been stopped. If the tire pressure is 19 psi (131 kPa) or more, inflate the tire up to the standard operating 5-86 pressure as shown on the tire and loading information label. This label is attached to the vehicle's center-pillar below the driver's door latch. See Inflation - Tire Pressure on page 5-69. Notice: If the tire pressure has dropped below 19 psi (131 kPa), the vehicle should not be driven. Damage to the tire may be severe and the sealant will not be effective. Contact Roadside Assistance, see Roadside Assistance Program on page 7-6. You should have the damaged tire repaired as soon as possible. The tire sealant is a temporary repair only. If the tire has been filled with tire sealant, take the tire to a GM dealer/retailer for inspection and repair. See Tire Sealant and Compressor Kit (GXP) on page 5-86 for additional information. Tire Sealant and Compressor Kit (GXP) Your vehicle may have a tire inflator kit. The kit uses a liquid tire sealant and air at the same time to seal small punctures in the tread area of the tire. Be sure to read and follow all the tire inflator kit instructions.