PIERCE MANUFACTURING (PIERCE) IS RECALLING CERTAIN MODEL YEAR 2007-2011 ARROW XTAND VELOCITY, MODEL YEAR 2008-2011 CUSTOM CONTENDER, IMPEL, QUANTUM AND MODEL YEAR 2009-2011 SABER EMERGENCY TRUCKS, EQUIPPED WITH MERITOR WABCO ELECTRONIC STABILITY CONTROL (ESC) MODULES, MANUFACTURED FROM DECEMBER 19, 2007, THROUGH OCTOBER 7, 2011. UNDER CERTAIN ROAD AND DRIVING CONDITIONS, VEHICLE BODY ROLL AND ROAD INCLINATION CHARACTERISTICS MAY ADVERSELY AFFECT THE SLIP ANGLE CALCULATION OF THE ELECTRONIC STABILITY CONTROL (ESC) SYSTEM. THIS MIGHT CAUSE THE ESC TO PERCEIVE AN OVER STEERING SITUATION AND THEREFORE APPLY THE OUTER WHEEL BRAKE ON THE FRONT AXLE UNTIL THE VEHICLE IS PERCEIVED TO BE STABLE.