PURCHASED NEW 2016 MADACX5 IN APRIL 2015. WIFE WAS PULLING INTO THE GARAGE AND WAS ABOUT STOPPED WHEN IT LUNGED FORWARD STRIKING THE BACK WALL OF THE GARAGE. CAR WAS MOVING AT LESS THAN A MILE PER HOUR WITH HER FOOT ON THE BRAKE.DAMAGE DONE TO VEHICLE AND GARAGE. TOOK IT TO THE DEALER, WHO KEPT THE VEHICLE AND DROVE AND MONITORED IT FOR A WEEK. THEY FOUND NO PROBLEM. MAZDA TOLD ME TO RETURN MY LOANER AND PICK UP MY VEHICLE. I TOLD THEM IT WAS UNSAFE. THEY WILL GIVE ME A DEAL ON A NEW VEHICLE. I WAS OUTSIDE WHEN MY WIFE ENTERED THE GARAGE AND WITNESSED THE INCIDENT.