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), theremay be a strong magnetic field interfering with thecompass. Such interference may be caused by amagnetic antenna mount, note pad holder, or similarobject. If the letter C appears in the compass window,the compass may 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 and holdingthe on/off button until a C is shown in the compassdisplay.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 thefactory. It will be necessary to adjust the compass tocompensate for compass variance if the vehicle is drivenoutside zone eight. Under certain circumstances, suchas a long distance, cross-country trip, it will benecessary to adjust the compass variance.To adjust for compass variance, do the following:1. Find your current location and variance zonenumber on the zone map that follows.2-42
