2009 FORD MUSTANG Steering Problems

MY SON WAS DRIVING HIS 2009 MUSTANG AND AFTER STOPPING AT A STOP SIGN IN A RESIDENTIAL NEIGHBORHOOD, HE SLOWLY ACCELERATED AND THE CAR SUDDENLY ACCELERATED QUICKLY ON ITS OWN. HE SAID THE GAS PEDAL WENT TO THE FLOOR, HE TRIED PUSHING BRAKE AND IT WAS NOT STOPPING THE CAR. IT SENT HIM THROUGH ANOTHER INTERSECTION, HE ENGAGED EMERGENCY BRAKE TO NO AVAIL. LUCKILY HIS CAR WENT THROUGH AN AREA OF SOGGY GRASS THAT HELPED SLOW THE CAR DOWN, AND CAME TO A STOP BY RUNNING INTO HEDGES AND RESTING NEXT TO A BRICK CHURCH. HE DESCRIBED HEARING THE RPM'S REVVING UP ALONG WITH THE SUDDEN ACCELERATION. HE ALSO DESCRIBED THE STEERING WHEEL AS "LOCKING UP".

MY 2009 MUSTANG 6CID, WHEN DRIVING THE STEERING WHEEL BECAME LOOSE IN AN UP AND DOWN MOTION. THEN IT STARTED TO BECOME LOOSE IN A SIDE TO SIDE MOTION TO A LESS OF A DEGREE THAN THE UP AND DOWN MOTION. SO I TOOK IT TO THE DEALER AND BY THE TIME I ARRIVED THERE IT HAD GOTTEN WORSE! THEY REPLACED THE STEERING WHEEL ON WARRANTY. *TR

2009 MUSTANG GT STEERING WHEEL MAKE NOISE WHEN DRIVING SLOW, SUCH AS DURING PARKING. I BROUGHT IT BACK TO THE DEALER BUT THEY SAY THEY DONT KNOW WHY. I AM CONCERN THIS IS A POTENTIAL SAFTEY ISSUE, E.G. STEERING STUCK DURING DRIVING OR STEERING WHEEL OUT OF CONTROL. THANK YOU