See also:

Voice Recognition
The voice recognition system uses commands to control the system and dial phone numbers. Noise: The system may not recognize voice commands if there is too much background noise. When to Speak: ...

CD Messages
Check Disc: Radios with a single CD player display Check Disc and/or eject the CD if an error occurs. Optical Error: The disc was inserted upside down. Disk Read Error: A disc was inserted with an i ...

Reactivation for Subsequent Owners
Push and follow the prompts to speak to an Advisor as soon as possible after acquiring the vehicle. The Advisor will update vehicle records and will explain the OnStar service offers and options ...