2008 INFINITI G35 Steering Problems

I WAS TRAVELING AT AROUND 25MPH ON BROADWAY STREET IN SAN FRANCISCO WHEN ALL OF A SUDDEN I FELT MY CAR START TO SWERVE ON IT'S OWN. I STEERED TO CORRECT IT BUT MY STEERING WHEEL WAS COMPLETELY DISCONNECTED IT FELT LIKE. ALL I COULD DO WAS HIT MY BRAKES AS QUICKLY AS I COULD BUT I ENDED UP CRASHING INTO A PARKED VEHICLE. MY STEERING WHEEL HAD NO WEIGHT AND TURNED FREELY WHILE THE FRONT WHEELS HAD NO MOVEMENT WHATSOEVER. I COULDN'T EVEN REVERSE SO HAD TO WAIT FOR THE TOW TRUCK TO COME AND PULL ME AWAY FROM THE VEHICLE I COLLIDED WITH. I CALLED INFINITI AND THEY SAID THEY WILL NOT INVESTIGATE THIS SINCE I BOUGHT THE CAR USED, THE MILEAGE AND IT WAS PREVIOUSLY IN A FRONT END COLLISION IN 2013. HOWEVER, THIS SHOULD NOT HAPPEN AS THERE IS NO REQUIRED OR RECOMMENDED MAINTENANCE FOR STEERING....

MY CAR HAS STARTED STALLING WHILE DRIVING, WHILE DRIVING! I HAVE GONE TO THE DEALER TO HAVE ISSUE FIXED, ONCE I GET IT FIXED IT HAPPENS AGAIN, AND THEN THE DEALER SAYS IT MIGHT BE SOMETHING ELSE. I HAVE A SMALL CHILD AND ITS TERRIFYING KNOWING THAT IF I'M ON THE HIGHWAY MY CAR WILL STALL OR ANYWHERE FOR THAT MATTER. IT'S BEEN HAPPENING FOR WEEKS, STARTED AT VERY LOW SPEEDS AND AS OF YESTERDAY THE ENGINE SHUT OFF, NO STEERING WHILE GOING AT A HIGHER SPEED, I COULD HAVE EASILY BEEN IN A WRECK, OR EVEN KILLED SOMEONE WALKING. IT'S UNSAFE! THERE ARE MANY FORUMS ONLINE REGARDING THIS ISSUE WITH INFINITI VEHICLES AND THEY DON'T CARE. LAWSUIT WAITING TO HAPPEN.

POWER STEERING WENT OUT COMPLETELY WITHOUT WARNING OR SIGNS OF GOING OUT. IT WENT OUT WHILE TRYING TO TURN LEFT ON A LARGE INTERSECTION. WAS ALMOST HIT BY ONCOMING TRAFFIC. OIL CHANGE WAS DONE AT FIRESTONE A DAY PRIOR TO INCIDENT AND STEERING FLUID LEVELS WERE GOOD.