2008 GMC Canyon Owner's Manual - Page 119

Mirrors {CAUTION: Manual Rearview Mirror Four-wheel drive vehicles with the transfer case in NEUTRAL will allow the vehicle to roll, even if the automatic transmission shift lever is in PARK (P). So, be sure the transfer case is in a drive gear - not in NEUTRAL. Always set the parking brake. Follow the proper steps to be sure your vehicle will not move. See Shifting Into PARK (P) (Automatic Transmission) on page 2-34. If you are pulling a trailer, see Towing a Trailer on page 4-44. When you are sitting in a comfortable driving position, adjust the mirror so you can see clearly behind your vehicle. Hold the mirror in the center to move it up or down and side to side. The day/night adjustment allows you to adjust the mirror to avoid glare from the lamps behind you. Push the tab forward for daytime use and pull it for nighttime use. Manual Rearview Mirror with OnStar® While you are sitting in a comfortable driving position, adjust the mirror so you can see clearly behind your vehicle. Hold the mirror in the center to move it up or down and side to side. The day/night adjustment allows you to adjust the mirror to avoid glare from the lamps behind you. Push the tab forward for daytime use and pull it for nighttime use. 2-39