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:
Roadside Service
(U.S. and Canada)
U.S.: 1-800-224-1400
Canada: 1-800-882-1112.
Text Telephone (TTY) Users
(U.S. Only): 1-888-889-2438.
Service is available 24 hours a day,
365 days a year. ...
Dinghy Towing
Notice: If the vehicle is towed
with all four wheels on the
ground, the drivetrain
components could be damaged.
The repairs would not be
covered by the vehicle warranty.
Do not tow the veh ...
ROTATE CONTROL TO
OFF POSITION
If the vehicle has the keyless
access system, this message
displays when the ignition is in
ACC/ACCESSORY and the shift
lever has just been moved to
P (Park). The message displays as
a rem ...