Mirror OperationThe automatic dimming feature comes on each time thevehicle is started.To turn the automatic dimming feature on or off, pressthe on/off button. The indicator light will illuminatewhen this feature is on.Compass OperationPress the on/off button once to turn the compasson or off.When the ignition and the compass feature are on,the compass will show two character boxes forapproximately two seconds. After two seconds, themirror will display the current compass direction.Compass CalibrationIf after two seconds the display does not show acompass direction, (N for North for example), there maybe a strong magnetic field interfering with the compass.Such interference may be caused by a magneticantenna mount, note pad holder, or similar object. If theletter C appears in the compass window, the compassmay need to be reset or calibrated.The mirror can be calibrated by driving the vehicle incircles at 5 mph (8 km/h) or less until the display readsa direction.The compass can be calibrated by pressing andholding the on/off button until a C is shown in thecompass display.Compass VarianceCompass variance is the difference between earth’smagnetic north and true geographic north. If the mirroris not adjusted for compass variance, the compasscould give false readings.The mirror is set in zone eight upon leaving the factory.It will be necessary to adjust the compass tocompensate for compass variance if the vehicle isdriven outside zone eight. Under certain circumstances,such as a long distance, cross-country trip, it will benecessary to adjust the compass variance.2-36
