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:
Odometer
The odometer shows how far the vehicle has been driven, in either kilometers
or miles.
This vehicle has a tamper-resistant odometer. If the vehicle needs a new
odometer installed, the new one is ...
End a Call
Push . System responds:
“Call ended.” ...
Owner Checks and Services
At Each Fuel Stop
- Check the engine oil level.
See Engine Oil.
Once a Month
- Check the tire inflation
pressures. See Tire Pressure.
- Inspect the tires for wear.
See Tire Inspection.
- Chec ...






