BRAKES FAIL TO STOP AT SLOW SPEEDS ( TRYING TO PARK OR IN A DRIVE THRU) DESPITE PUSHING BRAKES PEDAL TO FLOOR, BRAKE PADS ARE FINE STARTED AT 34,000 MILES NOW HAVE 52,000 HAS HAPPENED RANDOMLY. CHEVY STATES NOTHING WRONG WITH BRAKES. HOWEVER HITTING THE CAR IN FRONT OF ME SAYS DIFFERENTLY BECAUSE IT WOULDN'T COME TO STOP LUCKY WAS BARELY MOVING. HUGE SAFETY ISSUE NOT BEING RESOLVED.