See also:

Roadside Assistance Program
U.S.: 1-888-881-3302 TTY Users (U.S.): 1-888-889-2438 Canada: 1-800-268-6800 Mexico: 01-800-466-0801 As the owner of a new GMC, you are automatically enrolled in the Roadside Assistance program. ...

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 remotely, i ...

Starting the Engine Using Remote Start
To start the vehicle: 1. Aim the RKE transmitter at the vehicle. 2. Press and release on the RKE transmitter. 3. Immediately after completing Step 2, press and hold until the parking lamps flash. ...