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:
Electric Parking Brake Light
For vehicles with the Electric Parking Brake (EPB), this light should come
on briefly as the engine is started. If it does not come on, have the vehicle
serviced by your dealer.
The parking b ...
Obstacle Detection Feature
The Obstacle Detection Feature is part of the express-up feature and is
active:
- In the middle and upper portions of the window opening.
- During window up movements.
- In ignition OFF during a ...
Maintenance Schedule
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 fo ...