AS I WAS ACCELERATING ONTO A HIGHWAY THE ELECTRONIC EMERGENCY BRAKE SYSTEM ( ATTACHED TO REAR WHEELS OF VEHICLE) WITHOUT WARNING ACTIVATED WHILE VEHICLE WAS ACCELERATING AT SPEEDS OF OVER 55 MPH. BRAKE SYSTEM PULSED VIOLENTLY AND THEN WHEELS COMPLETELY LOCKED UP CAUSE THE CAR TO REAR WHEELS LOCKED UP CAUSING DAMAGE TO ENTIRE REAR BRAKING SYSTEM. HYUNDAI FAILED TO ALERT ME TO THIS DANGER AND ONLY DISCLOSED IT AFTER THE VEHICLE FAILED. AFTER THE VEHICLE WAS TOWED TO THE HYUNDAI DEALERSHIP, HYUNDAI NOW CLAIMS TO HAVE THIS NOTICE OUT- MANUFACTURER CAMPAIGN ID: TFF 2016 SONATA ELECTRIC PARKING BRAKE LOGIC UPDATE. LUCKILY, WE MAINTAINED CONTROL OF THE VEHICLE THROUGHOUT THE SKID AND SYSTEM FAILURES. WE HAD TO THROW WATER ON REAR WHEELS/BRAKES TO KEEP THEM FROM CATCHING ON FIRE. ENTIRE REAR BRAKE SYSTEM DESTROYED...MULTIPLE SENSOR SYSTEMS FAILED FOR THIS FAULT CONDITION TO OCCUR. ACCORDING TO HYUNDAI MANUALS, THIS SITUATION IS IMPOSSIBLE WITH THEIR REDUNDANT SENSORS/CHECK SENSORS, YET IT DID OCCUR. HYUNDAI IS INVESTIGATING, HOWEVER THEY DID NOT SEEM TOO CONCERNED THAT THEY PUT MY FAMILY IN DANGER WITH A PRODUCT THEY KNEW WAS DEFECTIVE, YET THEY NEVER ALERTED ME TO THIS ISSUE. VEHICLE HAS 5002 MILES ON IT, AND WAS PURCHASED 3-5-2016, OWNED JUST OVER 3 MONTHS.... UPDATED 08/23/16 *BF UPDATED 06/15/18*JB