GM Service Manual Online
For 1990-2009 cars only

The compact spare tire is a temporary replacement tire made to perform at speeds up to 65 mph (105 km/h) and for distances up to 3,000 miles (5 000 km). With the compact spare installed, you can finish your trip and then have the damaged or flat road tire repaired or replaced. Of course, it's best to repair or replace the damaged road tire as soon as you can. Your compact spare tire will last longer and be in good shape in case you need it again.

The compact spare may lose air after a time, so check the inflation pressure regularly. After installing the compact spare on your vehicle, stop as soon as possible and make sure it's correctly inflated. It should be 60 psi (420 kPa).

Don't use your compact spare tire on other vehicles and don't mix your compact spare tire or wheel with other wheels or tires, they won't fit. Keep your compact spare and its wheel together. Don't include the compact spare in your tire rotation.

Notice: When the compact spare is installed, do not take the vehicle through an automatic car wash with guide rails. The compact spare can get caught on the rails which can damage the tire, wheel and other parts of the vehicle.