See also:

TTY Users
OnStar has the ability to communicate to the deaf, hard-of-hearing, or speech-impaired customers while in the vehicle. The available dealer-installed TTY system can provide in-vehicle access to all of ...

GMC Terrain in the Market
With the Equinox and Terrain, GM stands to regain some lost share in the crossover market — if for no other reason than 32 mpg in an SUV is no small feat. The Terrain is competitive otherwise, b ...

Reporting Safety Defects to General Motors
In addition to notifying NHTSA (or Transport Canada) in a situation like this, please notify General Motors. Call 1-800-GMC-8782 (1-800-462-8782), or write: GMC Customer Assistance Center P.O. Box ...