2008 Chevrolet Impala Owner's Manual - Page 110

Manual Rearview Mirror with OnStar® If your vehicle has this feature, this mirror has a knob located at the bottom of the mirror. It is used to change the mirror from day to night position. To reduce glare from headlamps behind you while driving at night, rotate the knob counterclockwise. For daytime driving, turn the knob clockwise. There are two map lamps located on the bottom of the mirror. Press the button next to each lamp to turn it on and off. There are also three OnStar® buttons located at the bottom of the mirror face. See your dealer/retailer for more information on the system and how to subscribe to OnStar®. See OnStar® System on page 2-38 for more information about the services OnStar® provides. Automatic Dimming Rearview Mirror with OnStar® The vehicle may have an automatic dimming rearview mirror with the OnStar® System. Press the button located below the mirror, on the far left, for up to three seconds to turn the automatic dimming feature off and on. There are two map lamps located on the bottom of the mirror. Press the button next to each lamp to turn it on and off. There are also OnStar® buttons located at the bottom of the mirror. See your dealer for more information on the system and how to subscribe to OnStar®. See OnStar® System on page 2-38 for more information about the service OnStar® provides. 2-36