See also:

Removing the Flat Tire and Installing the Spare Tire
Take off the wheel cover or center cap, if the vehicle has one, to reach the wheel bolts. 1. Do a safety check before proceeding. See If a Tire Goes Flat for more information. 2. Turn the wheel ...

Service Vehicle Messages
SERVICE A/C SYSTEM This message displays when the electronic sensors that control the air conditioning and heating systems are no longer working. Have the climate control system serviced by ...

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 ...