NHTSA Complaint #11276852 — 2020 KIA SOUL

I BOUGHT THE CAR IN MAY 2020. I FIRST REPORTED THE PROBLEM IN JULY. IT HAS SOMETHING TO DO WITH THE IDLE STOP AND GO FEATURE, AS IT ONLY HAPPENS WHEN THIS IT IS BEING USED. WHEN I COME TO STOPS AT RED LIGHTS AND STOP SIGNS. EVERYTHING SHUTS DOWN. WHEN I RELEASE MY FEET OFF THE BREAKS THE CAR MAKES A DULL QUAKE LIKE NOISE. I HAVE HAD THE CAR IN THE SHOP AT THE DEALERSHIP FOR 7 DAYS ALREADY. THEY CHANGED THE BREAK BOOSTER THINKING IT WAS THE PROBLEM, BUT IT WAS NOT. I HAVE BEEN TRYING TO SCHEDULE SOMEONE AT THE DEALERSHIP TO RIDE WITH ME FOR A FEW MINUTES TO LISTEN TO THE NOISE. ABOUT A WEEK AND HALF AGO I GOT AN REPLY TO AN EMAIL TELLING ME TO HOLD OFF ON THAT, BECAUSE ANOTHER CAR HAS COME INTO THE DEALERSHIP WITH THE SAME PROBLEM. I WAS TOLD THEY WILL CONTACT ME WHEN THEY FIGURE OUT WHAT IT IS. THIS PROBLEM HAD BEEN GOING ON WORKING ON 5 MONTHS NOW.