GMC Sierra
GMC Sierra

See also:
Scheduling Service Appointments (U.S. and Canada)
When the vehicle requires warranty service, contact your dealer and request an appointment. By scheduling a service appointment and advising the service consultant of your transportation needs, your d ...
Retrieve My Number
1. Push . System responds:
“OnStar ready.” 2. Say “My Number.” System responds: “Your OnStar Hands-Free Calling number is.” ...
Call Waiting
Call waiting must be supported on the cell phone and enabled by the wireless service carrier.
• Press to answer an incoming call when another call is active. The original call is placed on hold.
...





