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. ...

Turn Signal Indicator
The vehicle may also have a turn signal indicator on the mirror. An arrow on the mirror flashes in the direction of the turn or lane change. ...

Battery
This display shows the current battery voltage. If the voltage is in the normal range, the value will display. For example, the display may read BATTERY 13 VOLTS. Your vehicle's charging system regul ...