1998 Buick Park Avenue Owner's Manual - Page 119

Press the COMPASS switch once to turn the compass on O Sff. r if, after two SecoCds, the display does not show a cornpass heading for NQI-~K, Q example), there ~ P may be a strong magnetic field interfering with the compass. Such interference may be caused by a magnetic antenna ETP,QUYB~, magnetic note pad holder or a similar magcetic item. ( " N 9 ine minor is set in zone eight upon leaving the k c t o r y It will be necessa-y tc adjust the compass to compensate for compzss variance if you live outside zone eight. Under certain circumstances, as during a long distance cross-country trip, it wiHi be necessary to adjust ~ Q I compass variance. Compass variance is the difference between earth's magnetic north and true geographic north. If not adjusted to account for compass variance, your compass could give false readings. m r