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 ...

Starting the Engine Using Remote Start
To start the engine using the remote start feature: 1. Press and release on the RKE transmitter. 2. Press and hold for about two seconds. The turn signal lamps will briefly flash to confirm th ...

Battery Replacement
To change the batteries on the headphones: 1. Turn the screw to loosen the battery door located on the left side of the headphones. Slide the battery door open. 2. Replace the two batteries in the c ...