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:
Heated and Cooled Cupholders
For vehicles with heated and cooled cupholders, these are located in the front
center console.
Press down on the access door release button to open the cupholder door.
To set to cool mode, press ...
Driving in Mud, Sand, Snow, or Ice
Use a low gear when driving in mud – the deeper the mud, the lower the gear.
Keep the vehicle moving to avoid getting stuck.
Traction changes when driving on sand. On loose sand, such as on beaches ...
Rear Seats
The vehicle's second-row seats have head restraints in the outboard seating positions
that cannot be adjusted.
The vehicle's third-row seats, if equipped, have adjustable headrests in the
...






