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:
Remote Start Auto Heated Seats
When on, this feature will turn the heated seats on when using remote start
on cold days.
Press the MENU/SELECT knob when Remote Start Auto Heated Seats is
highlighted. Turn the knob to select On ...
High/Low—Beam Headlamps (Uplevel)
The high/low beam headlamps on the uplevel are High Intensity Discharge
(HID) and should be replaced at the dealer. ...
Engine Overheating
The vehicle has several indicators to warn of engine overheating.
There is a coolant temperature gauge on your vehicle's instrument panel. See
Engine Coolant Temperature Gauge .
In addit ...