See also:

Transferring a Call
Audio can be transferred between the in-vehicle Bluetooth system and the cell phone. The cell phone must be paired and connected with the Bluetooth system before a call can be transferred. ...

UHP Controls
Use the buttons located on the infotainment system and the steering wheel to operate the UHP system. Steering Wheel Controls Steering wheel controls can be used to: - Answer incoming calls ...

Warranty
OnStar equipment may be warranted as part of the new-vehicle limited warranty. The manufacturer of the vehicle furnishes detailed warranty information. ...