See also:

To Transfer Audio to the Cell Phone
During a call with the audio in the vehicle: 1. Press . The system responds with “Ready” followed by a tone. 2. Say “Transfer Call.” The system responds with “Transferring call” an ...

Retrieve My Number
1. Push . System responds: “OnStar ready.”. 2. Say “My Number.” System responds: “Your OnStar Hands-Free Calling number is.” ...

Special Application Services
Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3,000 mi. Have underbody flushing service performed once a year. ...