DRIVING ON FREEWAY LESS THAN 35 MPH, CAR MADE LOUD NOISE FOR 1-2 MINUTES AT SAME TIME I FELT UNDER FLOOR BOARD SOMETHING PULLING. I TRIED TO SLOW DOWN, BRAKES DIDN'T WORK. I REAR ENDED A CAR. THE CAR GEAR SHIFT POPPED INTO REVERSE; I PRESSED HARDER ON BRAKES & THEY FINALLY WORKED. I NOTICED A BIG LIGHT ON THE DASHBOARD SAYING 'MALFUNCTION, CHECK OWNERS MANUAL' THERE WAS A GRAY SYMBOL NEAR THESE WORDS. INSIDE THE SPEEDOMETER CIRCLE THAT SAME SYMBOL APPEARED IN BRIGHT YELLOW. AT SOME POINT WITHIN AN HOUR 2 MORE YELLOW SYMBOLS APPEARED ON THE FAR LEFT OF THE DASH, A YELLOW TRIANGLE WITH AN EXPLANATION POINT, AND A CAR WITH 2 CURVED LINES BEHIND THE BACK TIRES. WHEN THE CAR WAS RETURNED TO THE DEALERSHIP I PURCHASED IT FROM, THE STAFF IMMEDIATELY ATTEMPTED TO BLAME ME FOR THE INCIDENT'ASKING WHY DIDN'T I BRING THE CAR IN FOR SERVICE? AND THAT I HAVE TO GET A RENTAL CAR AND MY CAR REPAIR THROUGH MY INSURANCE COMPANY. HE PUSHED THE IDEA OF GETTING THE CAR REPAIRED. I STATED I JUST BARELY GOT THE CAR 3-4 WEEKS AGO BRAND NEW. I LEFT THE CAR TO BE CHECKED BY SERVICE DEPARTMENT. THE NEXT DAY THE SERVICE MANAGER DENIED ANY MALFUNCTION SAYING THERE WASN'T ANY CURRENT CODES JUST PAST CODES; I ASKED WHAT THAT MEANT HE SAID A BRAKE SENSOR AND SOME OTHER DATA I DIDN'T COMPREHEND. HE SAID GET MY INSURANCE TO FIX THE CAR. I SAID NO SIR, I WANT MORE INFORMATION ON WHY THE CAR MALFUNCTION FIRST. ONCE I EXPLAIN TO HIM AGAIN WHAT HAPPENED HE SAID HE WOULD HAVE HIS FORMAN CHECK OUT THIS CAR THE N