See also:

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the v ...

Storing the Flat Tire with a Flat Load Floor (Sedan)
1. Put back all tools as they were stored in the rear storage compartment and put the compartment cover back on. 2. Put the flat tire in the tire storage bag, if there is one. 3. Place the t ...

When to Check Lubricant
Refer to Maintenance Schedule   to determine how often to check the lubricant. ...