2005 Pontiac Bonneville Owner's Manual - Page 100

Mirrors Manual Rearview Mirror While sitting in a comfortable driving position, adjust the mirror so you can see clearly behind your vehicle. Grip the mirror in the center to move it up or down and side to side. The control at the bottom of the mirror is the day/night feature that allows adjustment to the mirror so that the glare of headlamps from behind is reduced. Push the tab for daytime use; pull it for night use. Mirror Operation AUTO: Press this button to turn on the automatic dimming feature. OFF: Press this button to turn off the automatic dimming feature. For mirrors equipped with OnStar® controls, press this button to turn the automatic dimming feature on or off. O (On/Off): The indicator light will be illuminated when this feature is on. Automatic Dimming Rearview Mirror The vehicle may have an automatic dimming rearview mirror. It may also have OnStar® controls. See OnStar® System on page 2-39 for more information. At night, when glare from lights is high, the mirror will gradually darken. This change may take a few seconds. The mirror will return to its clear daytime state when glare is reduced. 2-36