See also:

OnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. The OnStar sy ...

Setting the Auto Time Adjust
]1. Press the CONFIG button and select Time and Date Settings, or press . 2. Highlight Auto Time Adjust. 3. Press SELECT to turn Auto Time Adjust on or off. 4. Press SELECT button to select ...

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 ...