Erasing Speed Memory
The cruise control set speed is erased from memory by pressing 
or if the ignition is turned off.
See also:
Other Navigation Services Available from OnStar
OnStar eNav: Allows subscribers to send destinations from Google Maps™ and MapQuest.com
to their Turn-by-Turn Navigation or screen-based navigation system. When ready,
the directions will be dow ...
Rear Vision Camera (RVC)
If available, the RVC displays a view of the area behind the vehicle when the vehicle is shifted into R (Reverse). This is displayed on the inside rearview mirror or the navigation screen, if equipped ...
Braking in Emergencies
ABS allows the driver to steer and brake at the same time. In many emergencies, steering can help more than even the very best braking. ...