See also:

Warranty
OnStar equipment may be warranted as part of the new-vehicle limited warranty. The manufacturer of the vehicle furnishes detailed warranty information. ...

General Information
For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people. Genuine GM parts have one of these marks: ...

Hazard Warning Flashers
(Hazard Warning Flasher): Press this button, on the center of the instrument panel, to make the front and rear turn signal lamps flash on and off. This warns others that you are having trouble. ...