2003 Oldsmobile Alero Owner's Manual - Page 277
2003 Oldsmobile Alero Manual
Page 277 highlights
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 slip off the jack and roll over you or other people. You and they could be badly injured. Find a level placeto change your tire. To help prevent the vehicle from moving: 1. Set the parking brake firmly. 2. Put an automatic transaxle shift lever in PARK (P), or shift a manual transaxle to FIRST (1) or REVERSE (R). The following steps will tell you how to use the jack and change a tire. 3. Turn off the engine. To be even more certain the vehicle won't move, you can put blocksat the front and rear of the tire farthestaway from the one being changed. That would be the tire on the other sideof the vehicle, at the opposite end. 5-62