2017 INFINITI QX60 Steering Problems

A mechanic says it is PCM failure. I have owned the car for 18 months. Shortly after buying it, it started doing this thing where it loses power for just a second or two. Cruise control and proximity sensors kick off, steering wheel locks and/or power steering turns off, all interior components turn off. Usually everything comes right back on, and I can reset the cruise control. Lately it has been more frequent, and things don't go back to normal. It sometimes causes the vehicle to stall and not start as well. Today even once things are back "on", I can't control the AC fan, radio volume, etc. Bluetooth shows connected to the car on my phone but isn't playing through the vehicle speakers. I don't undersrand how this could not be a recall when it poses a major safety risk to suddenly lose power and be unable to steer...

ISSUES OCCURRED FOR LAST WEEK OR TWO. AFTER FEW MINUTES OF DRIVING WHEN CAR ENGINE IS HOT, MY CAR STEERING WHEEL BECOMES SO STIFF THAT SOMETIMES IT IS IMPOSSIBLE TO TURN RIGHT OR LEFT. ALSO WHEN YOU PUSH BREAK IT'S MAKE NOISES, IT'S SOUND LIKE CRUSHING EMPTY SODA CAN.

MY CAR HYDROPLANED AND EVERYTHING SHUT OFF. THE BRAKES AND STEERING WHEEL LOCKED AND THE ENGINE SHUT OFF. THERE WAS NOTHING I COULD DO TO PREVENT THE ACCIDENT. I WAS DRIVING UNDER THE SPEED LIMIT AND WAS NOT ENGAGED IN ANY RECKLESS MANEUVERING. I FELT THE CAR SLIDE IN AN UNNATURAL DIRECTION AND WHEN I ATTEMPTED TO COUNTER CORRECT I FOUND THE STEERING WHEEL HAD LOCKED. I NEXT TRIED THE BRAKES WHICH WERE ALSO UNRESPONSIVE. THE VEHICLE SLIDE INTO THE CENTER DIVIDER ON THE FREEWAY AND I SLOWLY ROLLED TO A STOP. UPON COMING TO A STOP THERE WAS A STRANGE ODOR IN THE CABIN OF THE CAR, SOME SORT OF FUME. I TRIED THE GAS PEDDLE BUT THE ENGINE WAS UNRESPONSIVE AS WELL. I WAS PUSHED OFF THE HIGHWAY BY HIGHWAY PATROL. WHEN THE TOW COMPANY SHOWED UP, THE DRIVER OF THE TOW TRUCK WAS ABLE TO START MY...