Erasing Speed Memory
The cruise control set speed is erased from memory by pressing 
or if the ignition is turned off.
See also:
California Perchlorate Materials Requirements
Certain types of automotive applications, such as airbag initiators, safety belt pretensioners, and lithium batteries contained in Remote Keyless Entry transmitters, may contain perchlorate materials. ...
Tachometer
The tachometer displays the engine speed in revolutions per minute (rpm). ...
Place a Call Using a Stored Number
1. Push . System responds:
“OnStar ready.” 2. Say “Call <name tag>.” System responds: “OK, calling <name tag>.” ...