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:
Vehicle Locator Lights
This allows the vehicle locator lights to be turned on or off.
Press the MENU/SELECT knob when Vehicle Locator Lights is highlighted. Turn
the knob to select On or Off. Press the knob to confirm a ...
Engine Oil
To ensure proper engine performance and long life, careful attention must be
paid to engine oil. Following these simple, but important steps will help
protect your investment:
- Always use engine ...
Central Door Unlocking System
The vehicle has a central door
unlocking feature. When unlocking
the driver door, the other doors can
be unlocked by holding the key in
the turned position for a few
seconds or by quickly tu ...






