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 vehic ...

Ending a Call
Press to end a call. ...

Safety Belts
Safety Belts Refer to the following sections for important information on how to use safety belts properly: • Safety Belts on page 3‑15. • How to Wear Safety Belts Properly on page 3& ...