2004 GMC Envoy Owner's Manual - Page 105

Outside Curb View Assist Mirrors If your vehicle has this feature, the driver's and/or passenger's outside mirror will adjust to a preset tilt position while the vehicle is in REVERSE (R) gear. Curb view assist may be useful when you are parallel parking. The mirror(s) will return to normal position when the vehicle is shifted out of REVERSE (R) gear. Automatic mirror movement in either direction will follow a short delay. To change the tilt position, adjust the mirror while the vehicle is in REVERSE (R) gear with the engine running, the parking brake engaged and the brake pedal pressed. The new position will be saved into memory once the vehicle is shifted out of REVERSE (R). You may be able to enable/disable this feature through the Driver Information Center (DIC). See "Mirror Curb View Assist" under DIC Operation and Displays on page 3-51. {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 or left lane, you could hit a vehicle. Check your inside mirror or glance over your shoulder before changing lanes. Outside Heated Mirrors Your vehicle may have this feature. When you operate the rear window defogger, a defogger also warms the heated driver's and passenger's outside rearview mirrors to help clear them of ice, snow and condensation. Outside Convex Mirror A convex mirror's surface is curved so you can see more from the driver's seat. 2-39