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 the OnStar services, except Virtual Advisor and OnStar Turn–by–Turn Navigation.
See also:
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 ...
Rear Climate Control System (Rear Climate with Rear Seat Audio)
For vehicles with the rear heat and air conditioning controls, they are integrated
with the rear seat audio controls located in the center console. The system can
be controlled from the front cont ...
Disc Messages
DISC ERROR: If this message
displays and/or the disc ejects, it
could be for one of the following
reasons:
- The radio system does not
support the playlist format, the
compressed audio form ...






