2003 Buick LeSabre Owner's Manual - Page 322

Changing a Flat Tire If a tire goes flat, avoid further tire and wheel damage by driving slowly to a level place. Turn on your hazard warning flashers. Changing a tire can cause an injury. The vehicle can slipoff the jack and roll over you -or other people. You and they could be badly injured. Find a level place to change your tire. To help prevent the vehicle from moving: 1. Set the parking brake firmly. 2. Put the shift lever in PARK (P). 3. Turn off the engine. To be even more certain the vehicle won't move, you can put blocks at the front and rear of the tire farthestaway from the one being changed. That would be the tire on the other side of the vehicle, the at opposite end. The following steps will tell you how to use the jack and change a tire. 5-71