See also:

Arming the System
To arm the system, do one of the following: ○ Press on the RKE transmitter. ○ Lock the vehicle using the key in the driver door. The alarm automatically arms after about 30 seconds. Th ...

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 ...

Brake System Warning Light
With the ignition on, the brake system warning light comes on when the parking brake is set. If the vehicle is driven with the parking brake engaged, a chime sounds when the vehicle speed is greater t ...