See also:

Automatic Dimming Rearview Mirror with OnStar® and Compass
Your vehicle may have an automatic-dimming rearview mirror with a compass and the OnStar® system. There are three additional buttons for the OnStar® system. See your dealer for more informatio ...

Customization Button
(Customization): Press the customization button to access the VEHICLE SETTINGS menu and customize the settings to your vehicle. ...

2004 Buick Rainier Review
The 2004 Buick Rainier leaves little doubt that an automaker can create two different vehicles with different characters from one platform. That's good news, considering all the automakers have ma ...