2014 Nissan 3 Series problems

“While driving my 2014 Nissan 370Z with only around 43,000 miles, the car suddenly made a loud bang in the rear area and then would not shift normally in automatic mode while I was on the highway with my child in the car. When I inspected the underside afterward, there were no fluids leaking and I had not hit anything that could have caused the noise or malfunction of the output sensor. Shortly after, the vehicle went into limp mode and would not shift past 2nd or possibly 3rd gear. Manual mode also stopped working. This limited the car to around 25 mph, creating a dangerous situation in traffic since it could not accelerate normally. The check engine light came on, and a scan revealed a P0720 Speed Sensor Circuit failure. The dealer advised replacing the valve body assembly at a cost of nearly $5,000. A transmission electronics failure of this kind at such low mileage is not normal wear and tear. Research shows that other Nissan and Infiniti owners with the same 7-speed automatic transmission have experienced the same problem. This appears to be a recurring defect that presents a serious safety risk when the vehicle suddenly loses acceleration ability.”

“THE PASSENGER SIDE AIRBAG WILL NOT OPERATE WHEN THE PASSENGER IN THE VEHICLE IS LESS THAN 130 POUNDS. I HAVE SPOKEN WITH MY LOCAL NISSAN DEALERSHIP AND WITH A DIRECT EMPLOYEE OF NISSAN AND HAVE BEEN TOLD THAT IT IS BECAUSE OF THE WEIGHT AND BODY STRUCTURE OF THE PASSENGER. WHEN I AM IN THE PASSENGER SEAT OF THIS VEHICLE THE AIRBAG TURNS OFF. I AM 5'4" AND WEIGH APPROXIMATELY 115 POUNDS.. NISSAN DOES NOT CONSIDER THIS A PROBLEM. I AM BEING TOLD THE VEHICLE IS OPERATING CORRECTLY. I HAVE NEVER HAD THIS ISSUE WITH ANY OTHER VEHICLE AND CAN NOT UNDERSTAND HOW THIS IS ACCEPTABLE UNDER LAW. AT THIS POINT NISSAN IS UNWILLING TO DO ANYTHING ABOUT IT. I HAVE REVIEWED WHAT I CAN FIND ON YOUR WEBSITE AND FEEL THAT THIS IS SOMETHING WHICH IS BROKEN OR DOES NOT FOLLOW THE REQUIREMENTS OF LAW. I WOULD LIKE YOUR FEEDBACK CONCERNING THIS.”

“TL* THE CONTACT OWNS A 2014 NISSAN 370Z. WHILE DRIVING 20 MPH, THE CHECK ENGINE INDICATOR ILLUMINATED AND THE VEHICLE STALLED. THE CONTACT TURNED OFF AND RESTARTED THE VEHICLE; HOWEVER, WHEN THE ACCELERATOR PEDAL WAS DEPRESSED, THE VEHICLE FAILED TO ACCELERATE OVER 5 MPH. THE DEALER (NISSAN OF BURLINGAME, 101 CALIFORNIA DRIVE, BURLINGAME CA 94010) DIAGNOSED THAT THE ENGINE HARNESS NEEDED REPLACEMENT. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 55,000.”