2006 GMC Envoy Owner's Manual - Page 116

Mirrors {CAUTION: Manual Rearview Mirror If your vehicle has four-wheel drive, it will be free to roll - even if the shift lever is in PARK (P) - if the transfer case is in NEUTRAL. So be sure the transfer case is in a drive gear - not in NEUTRAL. See Four-Wheel Drive on page 2-27. Follow the proper steps to be sure your vehicle will not move. See Shifting Into Park (P) on page 2-32. If you are pulling a trailer, see Towing a Trailer on page 4-56. Your vehicle may have this feature. While sitting in a comfortable driving position, adjust the rearview 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 day/night control, located at the bottom of the mirror, adjusts the mirror to reduce headlamp glare from behind during evening or dark conditions. Turn the control clockwise for night use; return it to the center for daytime use. Manual Rearview Mirror with OnStar® Your vehicle may have a rearview mirror with the OnStar® system. Control buttons for the OnStar® system are at the bottom of the mirror. See your GM dealer for more information on the OnStar® system and how to subscribe to OnStar®. Also, see OnStar® System on page 2-49 for more information about the services OnStar® provides. 2-36