See also:

Horn
Press on the steering wheel pad to sound the horn. ...

Using the Digit Store Command
The digit store command allows a phone number to be stored by entering the digits individually. 1. Press . ► For vehicles without a navigation system, the system responds “Ready,” followe ...

Security
OnStar provides services like Stolen Vehicle Assistance, Remote Ignition Block, and Roadside Assistance, if the vehicle is equipped with these services. OnStar can unlock the vehicle doors r ...