DTNA IS RECALLING CERTAIN MODEL YEAR 2011 BUSINESS CLASS M2, AND CORONADO, MODEL YEAR 2011-2012 CASCADIA VEHICLES EQUIPPED WITH FONTAINE ULTRA LT FIFTH WHEELS AND MANUFACTURED FROM APRIL 7, 2010, THROUGH MARCH 7, 2011. DURING THE COUPLING PROCESS ON VEHICLES EQUIPPED WITH PRE-MODIFICATION FONTAINE ULTRA LT FIFTH WHEELS, IT IS POSSIBLE FOR THE DRIVER TO PARTIALLY CLOSE THE FIFTH WHEEL LOCK, AND IF RELYING ON A TUG TEST (PULL TEST), AND NOT PERFORMING THE REQUIRED VISUAL INSPECTION, THINK THAT THE FIFTH WHEEL LOCK IS PROPERLY COUPLED TO THE TRAILER KING PIN, WHEN IN FACT, IT IS NOT.