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 acce ...

Driver Information Center (DIC)
The Driver Information Center (DIC) displays information about the vehicle. It also displays warning messages if a system problem is detected. See Vehicle Messages  for more information. All mes ...

Starting Procedure (Key Access)
1. With your foot off the accelerator pedal, turn the ignition key to START. When the engine starts, let go of the ignition. The idle speed will go down as your engine gets warm. Do not rac ...