FORD: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. UNDER DRIVING AND CERTAIN ENVIRONMENTAL CONDITIONS, A SMALL TEAR CAN DEVELOP IN THE DIAPHRAGM OF THE BRAKE BOOSTER AND A HISSING NOISE CAN BE HEARD WHEN DEPRESSING PEDAL AND EXPERIENCE A SPONGY PEDAL, WITHOUT EFFECT BRAKING PERFORMANCE. MODEL 2010-2013 EDGE, MKX. *PE UPDATED 2/6/15. *PE
