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:
If the Off Indicator is Lit for an Adult-Size Occupant
If a person of adult size is sitting in the right front passenger seat, but the
off indicator is lit, it could be because that person is not sitting properly in
the seat. If this happens, use th ...
Exterior Lamps Off Reminder
If a door is open, a reminder chime sounds when the headlamps or parking lamps
are manually turned on and the key is out of the ignition. To turn off the chime,
turn the headlamp switch to off or ...
Brake Assist
(Except CTS-V)
This vehicle has a brake assist
feature designed to assist the
driver in stopping or decreasing
vehicle speed in emergency driving
conditions. This feature uses the
stability system hydrauli ...