I WAS TRYING TO PARK THE TESLA MODEL Y AFTER FINISHING A 15-20 MINUTE TEST DRIVE ON FREEWAYS AND STREETS. I PARKED IN A PARKING LOT AT THE DEALERSHIP IN BETWEEN TWO OTHER CARS. IN ORDER TO PARK THE CAR, I WAS BRAKING TO BRING IT TO A COMPLETE STOP. AFTER THE CAR WAS POSITIONED INTO THE PARKING LOT AND JUST BEFORE STOPPING, IT ACCELERATED ALL OF A SUDDEN, SWERVED LEFT AND HIT A PLANTER IN FRONT AND ANOTHER PLANTER ON THE LEFT BEFORE COMING TO A STOP. I GOT OUT OF THE CAR AND MY FAMILY TOO AND REPORTED TO THE DEALERSHIP. I DID NOT LEAVE UNTIL TESLA FIRE AND TESLA SECURITY FOLKS CAME IN AND TOOK STOCK OF THE SITUATION. THEY FOUND THE LEFT FRONT WHEEL LOCKED IN POSITION AND HAD TO MANUALLY UNLOCK IT USING TOOLS. 3 OTHER FAMILY MEMBERS WERE IN THE CAR (INCLUDING KIDS). TESLA HAS NOT OFFERED ANY EXPLANATION FOR THE LAST 6 DAYS AS TO WHY THIS HAPPENED.