1998 Buick Century Owner's Manual - Page 246

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. ... vehicle Changing a tire can cause an injury. The can slipoff the jack and over you or other roll people. You and they could be badly injured. To Find a level place to change your tire. help prevent thevehicle from moving: 1. Set the parking brake firmly. 2. Put the shift lever in PARK (P). 3. l b r n off the engine. To be even more certain the vehicle won't move, you can put blocksat the front and rear the of tire farthestaway from the one being changed. That would be the tireon the other sideof the vehicle, at the opposite end. The following steps will tell you how to use the jack and change a tire. 5-26