Hands-Free Calling
1. Push
System responds: “OnStar
ready.”
2. Say “Dial.” System responds: “Please say the name or number to call.”
3. Say the entire number without pausing, including a “1” and the area code. System
responds: “OK calling.”
See also:
Vehicle Reminder Messages
ICE POSSIBLE DRIVE WITH CARE
This message displays when the outside air temperature is cold enough to create icy road conditions. Adjust your driving accordingly. ...
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.
...
Reading Lamps
For vehicles with reading lamps, they are located on the overhead console.
To turn on the reading lamps, press the button located next to each lamp. To turn them off, press the button again.
The veh ...





