See also:

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 ...

Place a Call Using a Stored Number
1. Push . System responds: “OnStar ready.” 2. Say “Call <name tag>.” System responds: “OK, calling <name tag>.” ...

Automatic Climate Control System
The vehicle's heating, cooling, defrosting, and ventilation can be controlled with this system. A. Fan Control B. AUTO (Automatic Operation) C. Air Delivery Mode Controls D. Front Defrost ...