1997 Buick Riviera Owner's Manual - Page 113

At night, when the glare is too high, the mirror will Cleaning the Photocells gradually darken to reduce glare (this change may take a Use a cotton swab glass cleanerto clean the and few seconds). The &or will return to its clear daytime photocells when necessary. state when the glare reduced. is Compass Calibration Setting the Mirror Once the compass is calibrated, does not need to be it OFF: This setting turns the dayhight function and off recalibrated as long as the mirror left in your vehicle is compass. The mirror will stay the day mode. in and the vehicle remains in the same geographical zone. M: This turns on the day/night portion the mirror to of To calibrate the compass: automatically reduce glare. 1. Set the switch on the mirror control to C/M. C/M: This setting turnson the compass in addition to in the dayhight function. The letter or letters displayed the top right corner the mirror indicate the direction of in which you are traveling. Time Delay This feature prevents rapid changing the mirror from of the night mode to the day mode as drive under you lights and through traffic. Reverse Gear Day Mode The reverse mode is another important feature of the shift in electrochromic mirror. When the lever is placed REVERSE @), the &or changes to the day mode. This gives you a bright image the mirror as you back up. in 2. Turn the vehicle ignition switch on. If the letter C is not displayedin the mirror compass window, hold of the CAL switch (on the bottom the mirror) for more than 10 seconds. To hold in the CAL switch, insert a paper clip into the small hole on the bottom of the mirror housing. The display will show a number first, but keep holding untii the letter C appears. 3. For quick calibration, drive vehicle in a the m huntil 360-degree circle at less than 5 mph (8 k / ) the display reads a compass direction. For normal calibration, drive the vehicle on your everyday routine, and compass will the eventually calibrate.