THIS BULLETIN ANNOUNCES AVAILABILITY OF REVISED MAP DATA TO ADDRESS CUSTOMER CONCERNS OF AN INCORRECT CLOCK TIME BEING DISPLAYED (ONE HOUR DIFFERENCE AHEAD OR BEHIND) ON THE HVAC CONTROL UNIT AND AN INCORRECT ESTIMATED DESTINATION ARRIVAL TIME BEING DISPLAYED BY THE NAVIGATION SYSTEM. THIS CONDITION ONLY OCCURS IN CERTAIN GEOGRAPHICAL AREAS LOCATED NEAR THE CROSSOVER BETWEEN TIME ZONES.