See also:

Using the “Re-dial” Command
1. Press and hold for two seconds. 2. After the tone, say “Re-dial.” Once connected, the person called will be heard through the audio speakers. ...

Connections
OnStar Hands-Free Calling allows calls to be made and received from the vehicle. The vehicle can also be controlled from a cell phone through the OnStar mobile app. See www.onstar.com for coverage map ...

Antilock Brake System (ABS) Warning Light
For vehicles with the Antilock Brake System (ABS), this light comes on briefly when the engine is started. If it does not, have the vehicle serviced by your dealer. If the system is working normall ...