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:
Exterior Lighting
The exterior lamps control is located on the instrument panel to the left of
the steering wheel.
: Turns off the automatic headlamps
and Daytime Running Lamps (DRL). Turning the headlamp contr ...
Anti-theft Alarm System
Your vehicle has a content theft-deterrent alarm system.
This is the security light.
To arm the theft-deterrent system:
1. Open the door.
2. Lock the door with the Remote Keyless Entry (RKE) tra ...
Setting the Power Liftgate Intermediate Mode
To change the liftgate stop position:
1. Turn the liftgate switch to either
the MAX, or the ¾ mode position
and power open the liftgate.
2. Stop the liftgate movement at
the desired hei ...






