See also:

RELEASE PARK BRAKE SWITCH
For vehicles with the electric parking brake, this message displays if the switch is pulled while the vehicle is moving. See the electric parking brake information under Parking Brake (Elect ...

Erasing Speed Memory
The cruise control set speed is erased from memory by pressing or if the ignition is turned off. ...

TTY Users
OnStar has the ability to communicate to the deaf, hard–of–hearing, or speech–impaired customers while in the vehicle. The available dealer–installed TTY system can provide in-vehicle acces ...