See also:

Erasing Speed Memory
When you turn off the cruise control or the ignition, the cruise control set speed memory is erased. ...

Ending a Call
Turn the Menu knob to select Hang Up, then press SELECT. ...

Roadside Assistance and OnStar
If you have an active OnStar subscription, press the Q button and the current GPS location will be sent to an OnStar Advisor who will assess your problem, contact Roadside Assistance, and relay y ...