See also:

Voice Pass-Thru
Voice pass-thru allows access to the voice recognition commands on the cell phone. See your cell phone manufacturer's user guide to see if the cell phone supports this feature. To access cont ...

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 ...

Brakes
Brakes stop the vehicle and are crucial to safe driving. • Signs of brake wear may include chirping, grinding, or squealing noises, or difficulty stopping. • Trained dealer technicians hav ...