See also:

Conditions in Which Remote Start Will Not Work
The remote vehicle start feature will not operate if: The key is in the ignition (key access) or if the key is in the vehicle (keyless access). The hood is not closed. The hazard warning fl ...

Connections
OnStar Hands-Free Calling allows calls to be made and received from the vehicle. The vehicle can also be controlled from a cell phone through the OnStar mobile app. See www.onstar.com for coverage ...

Horn
Press near or on the horn symbols on your steering wheel pad to sound the horn. ...