2005 GMC Savana Van Owner's Manual - Page 112

Outside Convex Mirror Your passenger's side mirror may be convex. A convex mirror's surface is curved so you can see more from the driver's seat. Outside Heated Mirrors Your outside mirrors can be defrosted by pressing the button located near the fan control. {CAUTION: A convex mirror can make things (like other vehicles) look farther away than they really are. If you cut too sharply into the right lane, you could hit a vehicle on your right. Check your inside mirror or glance over your shoulder before changing lanes. An indicator light in the button will light while the heated outside mirrors are activated. Your rear window defogger comes on while the heated mirrors are on. If your vehicle has a rear window defogger, see "Rear Window Defogger" in Climate Control System on page 3-18. 2-32