2004 Cadillac DeVille Owner's Manual - Page 105

Mirrors {CAUTION: It can be dangerous to get out of your vehicle if the shift lever is not fully in PARK (P) with the parking brake firmly set. Your vehicle can roll. Do not leave your vehicle when the engine is running unless you have to. If you have left the engine running, the vehicle can move suddenly. You or others could be injured. To be sure your vehicle will not move, even when you are on fairly level ground, always set your parking brake after you move the shift lever to PARK (P). Follow the proper steps to be sure your vehicle will not move. See Shifting Into Park (P) on page 2-36. If you are parking on a hill and if you are pulling a trailer, also see Towing a Trailer on page 4-39. Automatic Dimming Rearview Mirror with OnStar® Your vehicle may have an automatic dimming rearview mirror with OnStar® system controls. For more information about OnStar®, see OnStar® System on page 2-46. When the automatic dimming feature is turned on, the mirror automatically changes to reduce glare from headlamps behind you. A photocell on the mirror senses when it is becoming dark outside. Another photocell built into the mirror face senses when headlamps are behind you. At night, when the glare is too bright, the mirror will gradually darken to reduce glare. This change may take a few seconds. The mirror will return to its clear, daytime state when the glare is reduced. Mirror Operation O (On/Off): Press the on/off button, located on the lower left side of the mirror face, to turn the automatic dimming feature on or off. The indicator light will be illuminated when the automatic dimming feature is on. 2-41