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:
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 t ...
Chassis refinements
Chassis tuning has focused on achieving a smooth, quiet, refined ride. The
DTS features an all-new front cradle design, with the engine mounted to the
cradle, and the cradle mounted to the body ra ...
Power Lumbar
A. Side Bolster Control
B. Lumbar Support Control
C. Seatback Bolster Control
To adjust the lumbar support,
if equipped:
- Press and hold the top of the
control (B) to increase support to
...






