2014 Infiniti Q50 Hybrid electrical system problems

“The contact owns a 2014 Infiniti Q50 Hybrid. The contact stated while driving 50-55 MPH, the vehicle stalled inadvertently, and nearly collided with a semi-truck. Several messages indicating a malfunction, and a message indicating that the hybrid battery was overheating were displayed. Additionally, several unknown warning lights were illuminated. The contact was able to veer to the side of the road. The contact stated that the vehicle restarted but failed to respond upon depressing the accelerator pedal. The contact stated that unknown warning lights were illuminated, and several messages displayed. The vehicle was towed to the residence. The dealer was not notified of the failure. The vehicle was not diagnosed nor repaired. The manufacturer was notified of the failure and advised the contact to take the vehicle to the dealer for a diagnostic tests. The failure mileage was approximately 139,362.”

“A short in the hybrid system's fuse relay caused the air conditioning control unit and compressor to fail. This further shorted out the hybrid junction box causing the hybrid battery recharge and power management system to malfunction. Gas mileage was very adversely affected and the hybrid system would have eventually failed causing a potential safety issue where the vehicle could lose propulsion suddenly while driving.”

“ENGINE HAS ROUGH IDLE WHILE IN PARK. EVEN AFTER THE FOLLOWING MAINTENANCE WAS DONE. REPLACING SPARK PLUGS, ENGINE SOFTWARE UPDATE, COOLANT FLUSH, POWER STEERING FLUSH, FUEL SYSTEM CLEAN, NEW MASS AIR FLOW SENSORS BOTH SIDES, SERPENTINE BELT, ALL NEW GASKETS ON TOP PART OF ENGINE, VALVE COVER, INTAKE MANIFOLD, SPARK PLUG TUBE SEALS. FLUSHED REAR AND REAR DIFF AND TRANSMISSION. STEERING IS HEAVY TO TURN. THE COLDER IT IS OUTSIDE THE WORSE THE ENGINE SHAKES. THROTTLE RESPONSE IS DELAYED AT TIMES. TRANSMISSION SHIFTS HARD THE WORSE THE ENGINE SHAKES. COLDER IT IS THE SLOWER THE WINDOWS ROLL UP AND DOWN ALONG WITH THE WIPERS. ENGINE DROPS RPM WHEN TURNING WHEEL WHILE IN PARK. WHEN DRIVING ENGINE DROPS ABOUT 100 - 200 RPM THEN KEEPS GOING BACK UP UNDER ACCELERATION BUT CAUSES TRANSMISSION TO SHIFT HARD. THIS PROBLEM CAUSES THE OUTPUT SHAFT SEAL TO BREAK AND REAR WHEEL SPEED SENSORS WERE REPLACED. AFTER A SHARP TURN CAR HESITATES TO ACCELERATE EVEN IF HARD ON THE GAS. EXTREME COLD TEMPS OUTSIDE MAKE THE ENGINE ALMOST SOUND AS IF SOMETHING INSIDE ENGINE INTERNALS IS NOT RIGHT. HOT AND HUMID WEATHER MAKES IT RUN THE BEST. NO CHECK ENGINE LIGHT PROBLEM STARTED AT 90,000…”

“VEHICLE WOULD NOT START AND DETERMINED THAT BATTERY WAS DEAD. ARRANGED FOR JUMP START (THROUGH MY ROADSIDE ASSISTANCE PROGRAM) BUT VEHICLE WOULD STILL NOT START. HAD VEHICLE TOWED TO INFINITI DEALERSHIP. THEY FIGURED OUT A WAY TO CHARGE CAR (WASN'T ACCESSIBLE VIA FRONT HOOD SINCE A HYBRID) AND FOUND A WAY TO OPEN TRUCK TO DIRECT ACCESS AND CHARGE BATTERY. UPON CAR STARTING, VARIOUS ERROR CODES APPEARED. CAR DEALERSHIP HAD NO KNOWLEDGE OF WHAT THEY MEANT AS THEY HAD NOT SEEN THEM BEFORE. I CONTACTED INFINITI CORPORATE AND THEY ASSOCIATED THE CODES WITH A PREVIOUS DAS VOLUNTARY RECALL. HOWEVER, UPON FURTHER INVESTIGATION BY DEALERSHIP, IT WAS DETERMINED THAT DAS UPDATE WAS ALREADY APPLIED. TO DETERMINE THE ROOT CAUSE, I WAS TOLD IT WOULD REQUIRE THE CAR TO BE PARTIALLY DISASSEMBLED. AS TWO OF THE CODES POINTS TO A BRAKING SYSTEM ISSUE, AND ONE TO THE CHASSIS SYSTEM, I WANTED TO VERIFY IF THIS IS A SAFETY ISSUE AND IF A RECALL IS NEEDED. (SEE ATTACHMENTS FOR REFERENCE)”

“OUR FRONT RIGHT BUMPER WAS JUST SLIGHTLY DAMAGED WHEN BACK OUT OF OUR GARAGE. IT WAS VERY MILD COSMETIC DAMAGE THAT OCCURRED AT ONLY A SPEED OF PERHAPS 5 MPH. ORIGINAL BODY WORK ESTIMATES CAME IN AT $2,000 ONLY TO SPIRAL OUT OF CONTROL WITH THE STEERING MODULES BEING REPLACED THEM STEERING RACK BEFORE THE CAR WAS ULTIMATELY TOTALED AS THE STEERING PROGRAMMING WAS STILL OFF. UPON RESEARCH WE FOUND OUT THAT THIS PARTICULAR MODEL WAS PLAGUED WITH ELECTRONIC STEERING ISSUES WHICH APPEARED TO BE ADDRESSED UNDER MULTIPLE RECALLS. THE INSURANCE COMPANY STATED THAT THEY HAVE VIDEOS OF THE STEERING WHEEL GOING CRAZY BACK AND FORTH WILDLY AFTER THE MODULES WERE REPLACED. I AM EXTREMELY CONCERNED THAT SUCH AN INSIGNIFICANT BUMP COULD NOT ONLY RESULT IN TOTALING A VEHICLE BUT COULD JEOPARDIZE A DRIVER'S SAFETY WITH THE STEERING ISSUES.”

“TL* THE CONTACT OWNS A 2014 INFINITI Q50. THE CONTACT STATED THAT THE VEHICLE FAILED TO TURN OFF WHEN ATTEMPTED. THE CONTACT ALSO STATED THAT THE KEYFOB WAS NOT RECOGNIZED. THE CONTACT STATED THAT THE VEHICLE SHUT-OFF ONLY AFTER RUNNING OUT OF GAS. THE VEHICLE TO WAS TOWED TO LUPIENT INFINITI MILWAUKEE (10595 W. ARTHUR AVENUE, WEST ALLIS, WI 53227, (262) 649-2236) TO BE DIAGNOSED HOWEVER, THE MECHANIC WAS UNABLE TO DUPLICATE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED. THE FAILURE MILEAGE WAS 66,000.”