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:
Hill and Mountain Roads
Driving on steep hills or through mountains is different than driving on flat
or rolling terrain. Tips for driving in these conditions include:
Keep the vehicle serviced and in good shape.
Che ...
Removing the Fence
Unlock by turning both latches (A) to align with the arrow on the
adapter (B). Lift and remove the fence. ...
Operating UHP Using Voice Control
The voice control of the UHP system enables you to operate several functions
of the mobile phone using your voice. The UHP system uses voice commands to
control the system and dial phone numbers. Af ...