See also:

Exterior Lamp Controls
Exterior Lamp Controls The exterior lamps control is located on the instrument panel to the left of the steering wheel. It controls the following systems: • Headlamps • Taillamps • Parkin ...

Automatic Headlamp System
When it is dark enough outside, the automatic headlamp system turns on the headlamps at the normal brightness, along with the taillamps, sidemarker, parking lamps, and the instrument panel lights. The ...

Customer Assistance for Text Telephone (TTY) Users (U.S. and Canada)
To assist customers who are deaf, hard of hearing, or speech impaired and who use Text Telephones (TTYs), GMC has TTY equipment available at its Customer Assistance Center. Any TTY user can communicat ...