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 acces ...

Parking on Hills
WARNING Parking the vehicle on a hill with the trailer attached can be dangerous. If something goes wrong, the rig could start to move. People can be injured, and both the vehicle and the trailer ...

Traction Control System (TCS)
The traction control system limits wheel spin. The system is on when the vehicle is started. - To turn off traction control, press and release located on the console.   illuminates and the a ...