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 system sta ...

Emergency

With Automatic Crash Response, the built-in system can automatically connect to help in a crash even if you cannot ask for it. Push to connect to an Emergency Advisor. GPS technology is used to id ...

See also:

Overheated Engine Protection Operating Mode
This emergency operating mode lets the vehicle be driven to a safe place in an emergency situation. If an overheated engine condition exists, an overheat protection mode which alternates firing gr ...

Headlamp removal
  WARNING Do not attempt to change any bulb with the lighting switch on. If the lighting has just been switched off, give the bulbs time to cool down. Handling them in a hot conditio ...

Poor reception and auto switching
In areas of poor reception due to signal masking and transmitter strengths, the HD Radio™ system may switch between the HD Radio primary signal and the corresponding analog broadcast more freque ...