I OWN A 2008 HYUNDAI ELANTRA. ABOUT 2 MONTHS AGO, I WENT TO STOP AT A RED LIGHT, AND INSTEAD OF STOPPING, MY CAR MADE A GRINDING SOUND FOR 4-6 SECONDS (LIKE MY ABS BRAKES WERE TURNING ON, BUT LONGER) AND DIDN?T STOP UNTIL IT HIT THE CAR IN FRONT OF ME (ROADS WERE DRY & MY CAR WAS ONLY GOING ABOUT 10 MPH). DUE TO THE LOW SPEED, MY CAR ONLY BUMPED THE CAR IN FRONT AND ONLY BUMPERS WERE DAMAGED. I IMMEDIATELY TOOK THE CAR INTO THE DEALERSHIP TO HAVE THEM CHECK MY BRAKES. THEY TOLD ME THEY COULDN?T FIND ANYTHING. TWO WEEKS LATER, I?M DRIVING AND GO TO STOP AT A RED LIGHT (DIFFERENT LIGHT, ROADS WERE DRY, GOING MAYBE 10-15 MPH) AND MY CAR AGAIN MAKES THE SAME GRINDING SOUND FOR ABOUT 5 SECONDS BEFORE I TRIED TO PUMP THE BRAKES. AFTER I PRESSED AND RELEASED THE BRAKES, THE GRINDING SOUND STOPPED AND THE CAR STOPPED. I TOOK IT INTO THE DEALERSHIP AGAIN, EXPLAINED WHAT HAPPENED. THEY LOOKED IT OVER, SAW NO COMPUTER READ OUT, AND TOLD ME THEY DIDN?T THINK THERE WAS A PROBLEM AND UNLESS THEY COULD DUPLICATE IT, THEY COULDN?T FIX IT. I WAS TOLD TO COME BACK IF IT HAPPENS AGAIN (AT WHICH POINT THEY COULD TAKE MY CAR FOR 2-3 WEEKS TO TEST IT AND SEE IF THEY COULD FIND THE PROBLEM. (I ASKED, THEY WOULD NOT PROVIDE A LOANER!) THE PROBLEM HAS SINCE HAPPENED TWICE MORE (ONCE IN THE RAIN, ONCE ON DRY ROADS, & ALWAYS WHEN I TRY TO STOP WHILE TRAVELING 15MPH OR LESS). I DID RESEARCH AND FOUND OUT THAT APPARENTLY IT IS LIKELY DUE TO A DEFECTIVE ABS MODULE (QUITE A FEW OTHER PEOPLE HAVE HAD