2015 INFINITI Q50 Unknown Or Other Problems

P07200 code came up, transmission is no good because of a cheap sensor that's impossible to fix. seems to be very common and very inconvenient

Just over 1 week ago, I was leaving a parking lot and driving back to my home when my car wouldn't accelerate past about ~10-15 miles per hour and wasn't shifting gears. When I took my foot off the gas pedal, the gear just dropped immediately from above third to first gear and the car shook. I first noticed this when already out of the parking lot and pulling off from a median onto the road, with no engine light or other warnings. I quickly pulled into the turn lane where there wasn't traffic and turned the car off and back on. It was the same but luckily I was in eyes view of my apartment, so I drove under 10 mph and made it home. I took the vehicle to a transmission service center and the error code that came up on the computer was (P0500 - Vehicle Speed Sensor A), which the service center said is an issue with the "valve body" inside the transmission, specifically the "TCM - Transmission Control Module" that sits on top of the valve body. I contacted multiple Infiniti service centers and they all confirmed that the valve body for my vehicle (part# 31705-x133a) is back ordered by over a month and could be longer until they have it. They do not sell the Transmission Control Module separately. The valve body was quoted to me for $2200 for the part alone. I attempted to install an aftermarket valve body and a new error code came up on the computer (PO720 - Output Speed Sensor Circuit). I kept the original valve body and will hold onto it. Doing some more research, this appears to be a common issue with the Infiniti Q50 - [XXX] In addition to the reddit thread above, a quick google search for Infiniti Error codes P0500 and PO720 point to multiple sources indicating the same common experience and outcome. My vehicle has 110k miles and users in the reddit comments are also reporting the same issue with the TCM Transmission Control Module occurring between 85k - 100k miles in all cases. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Power steering failed while driving in parking lot looking for parking spot. Unable to turn wheel without hitting parked car. I was able to drive to end of the lot where there were less cars. Noticed that I was able to turn wheel so long as didn’t step on brakes. The steering wheel was also off alignment. This happed on a Saturday evening, next day car was fine all the warning were off. Spoke to service person explained what happened. He basically said if the car is running fine they can check it out but may not find the problem. Since the car was running fine until it wasn’t. Car was parked in garage turned on the car all warning lights go on. Made appointment for 4/3/24 drove car to dealership which is not to far. The warning lights still on and no power steering. Analysis many DTC codes found related to this system:B2512 4WAS SIG: C1B9000 DAST SYSTEM: C1138 4WAS CIRCUIT & C1A04 ABS/TCS/VDC CIRC. Correction Recommended to perform DAST calibration first before performing further diagnosis. COST $539.15 . They also did Multi-Point Inspection items requiring immediate attention Engine Air Filter COST $94.99 GRAND TOTAL $641.64 out of pocket. 4/3/24 picked up car. On that evening drove the car and as I’m pulling up on drive way power steering goes out again. I managed to get the car in garage. Once I’m in push button to close garage doesn’t work and car dies no power at all. Able to get car started by playing with battery cables. On dealership notes car was there 30 miles ago. Now they say wrong battery size. That battery was replaced by them on 2/28/22. Also the battery just past Multi-Point 2 days ago.New battery cost $232.78 now out of pocket $874.42.This is now 4/10/24. Drove that evening and front splash guard fall off had to tie wrap to hold whatever pieces are left. Took it to dealership they took no responsibility. I will need to replace it. I have all my receipts from them they are the only ones who have worked on my vehicle.

My car started acting weird, fob wasn’t working correctly, doors repeatedly lock nonstop and drained battery. I took to Infiniti and they said it’s water damage from my sunroof drains. It damaged my BCM. Infiniti has quoted me 3,700 dollars to fix. I’ve done lots of research and this seems to be a very common problem with the Infiniti q50 models. I believe this is a manufactured defect. This could of left me stranded because car wouldn’t crank.

Sun roof drain is clogged which has caused my carpets to go wet literally puddles, could potentially damage my electronics in car this is an ongoing problem for thousands of Infinitis. I am in a group on Facebook and I can literally scroll and find hundreds of Infiniti owners complaining about their carpets and how Infiniti dealerships charging thousands of dollars to repair. I’ve been holding off to get this fixed in hopes that I’d find someone to assist me with a lower price but nothing

4/16/2023 Sunday 5pm With my wife and daughter in the car, I started the vehicle in my driveway and selected Sport mode as usual. Selected reverse and backed into our turnaround then forward to the end of our driveway. Driveway is approximately 4 car lengths long with a 20 ft long apron turnaround. Almost immediately after braking at the end of the driveway while waiting for passing traffic to exit drive, vehicle suddenly accelerated and I immediately pressed the brake as hard as I could to prevent driving into passing vehicles. I could hear the tires trying to grip/spin while I was fighting to press the brake harder to hold it t back. I then panicked and selected the gear shifter to anything other than drive and it immediately did the same in reverse. After getting in into park, I immediately selected Standard mode and the vehicle performed normal afterwards. There were no warning lights or anything to indicate any issues. Previously I had noticed minor intermittent issues of high RPMs when slowing or braking while in Sport mode but it would immediately correct itself. I have not had a chance to take it for inspection as it's now Monday morning April 17. We were all very shaken. Please advise.

My vehicle suddenly jumped then accelerated slowly and wouldn't get past 3rd gear while driving on I275 (speed limit 55MPH) proceeded to mechanic, error code 0720 speed sensor output related to transmission. Then was told by Infiniti and another auto body repair shop that it most likely in models 2014-2016 it was a transmission assembly that needed replaced. that Infiniti was given a service bulletin that they should not just replace the speed sensor. I believe this should be a recall. My vehicle has less than 60,000 miles and has been garaged and has had all maintenance completed. This is a safety issue, Infiniti is aware of this and it is also a costly repair anywhere from $2500-$3000. I am asking for a recall of Valve body for Infinite Q50 2014-2016.

My steering wheel heater used to work normally, meaning an acceptable temperature, and divided evenly through my steering wheel. It is now only getting SUPER hot, to where I cannot even hold it, on the bottom left part of the steering wheel. The rest of the steering wheel is cool.

WAS DRIVING MY INFINITI Q50 ON A NORMAL DRY DAY WHEN ALL OF A SUDDEN IT DOWN SHIFTED OR FELT LIKE I WAS DRIVING A STANDARD MODEL VS AUTOMATIC... I PULL OVER MY ENGINE LIGHT COMES ON.. I TURNED OFF ALL SENSORS ASSOCIATED WITH THE INTELLITOUCH SYSTEM THINKING IT WAS NOT JUDGING THE DISTANCE CORRECTLY BETWEEN CARS BECAUSE IT WILL AUTOMATICALLY SLOW YOUR CAR DOWN... CONTINUED DRIVING AND I'M NOTICING AS I TRY TO ACCELERATE MY CAR IS NOT SHIFTING INTO 3RD GEAR... SO I GET TO ABOUT 35-40 MPH AND NOW I CAN TELL IT'S REVVING IN THE SAME GEAR..GET HOME GOOGLE THE ISSUE AND IT SEEMS THE VALVE BODY ON THE 2015 Q50 HAS A THREAD... GO TO YOUTUBE THIS GUY HAS A VIDEO ABOUT HIM BEING TOLD IT'S THE SPEED SENSORS... BUT WHEN HE WENT FOR REPAIR INFINITI INFORMS HIM THE VALVE BODY NEEDS REPLACING. I TOOK MY CAR INTO AN INFINITI DEALER , SPENT $180 TO HAVE A DIAGNOSTIC RUN AND WAS TOLD THEIR IS A SERVICE BULLETIN FOR THE SPEED SENSORS THAT THEY SHOULD JUST REPLACE THE VALVE BODY. THE VALVE BODY IS $1635 AND ON A NATIONAL BACK ORDER AS OF AUGUST 2020 WHEN I'M EXPERIENCING THIS ISSUE.. CALLED INFINITI CONSUMER AFFAIRS AND I'M TOLD WELL UNLESS YOU PAY FOR THE PART WE CAN'T DO ANYTHING TO GET IT EXPEDITED... IT'S BEEN 45 DAYS... SO I HAVE TO TIE UP $1700 AND DON'T KNOW WHEN THIS PART MAY BE AVAILABLE.. CAN'T DRIVE CAR BECAUSE I'LL BURN MY TRANSMISSION UP... THE VALVE BODY IN 2015 Q50'S NEED TO BE RECALLED...I COULD HAVE BEEN ON THE FREEWAY OR DRIVING TO OR FROM LOUISIANA FROM HOUSTON.. LUCKILY I WAS WITHIN 15 MILES OF MY HOME.. CALLED THE OTHER 2 INFINITI DEALERS IN HOUSTON NONE OF THEM HAVE IT IN STOCK AND HAVE AT LEAST 1 Q50 WAITING FOR REPAIR.. CALLED THE DEALER IN AUSTIN ALSO NO STOCK WITH 2 VALVE BODIES ON RESERVE... I HAVE 106000 MILES ON MY Q50 AND IT'S NO LONGER UNDER WARRANTY.. THIS ISSUE HAS BEEN REPORTED AT FEWER MILES LIKE 30K-50K SO HAS NOTHING TO DO WITH THE AGE OF THE CAR.

Mileage: 106,000

I WAS DRIVING TO WORK AT APPROX 6:15AM ON HWY 17. SPEED WAS APPROX 40MPH WHEN THE SUNROOF SUDDENLY EXPLODED. MOST OF THE GLASS FLEW OUT SHOWERING THE CARS BEHIND ME. I DIDN'T HEAR OR SEE ANYTHING HIT THE SUNROOF.

Mileage: 65,000

MY VEHICLE HAS AN OPTIONAL TECH PACKAGE THAT PROVIDES FORWARD BRAKING, LANE DEPARTURE AND BACKUP BRAKING. APPARENTLY WHEN I HIT A POTHOLE, THESE SAFETY FEATURES OCCASIONALLY TURN OFF. IV'E HAD THESE CAR FOR 4 1/2 YEARS AND BECAME AWARE OF THIS PROBLEM ABOUT 6 MONTHS AGO. I'M HAVE BECOME DEPENDENT ON THESE SAFETY ENHANCEMENTS AND NO-LONGER FEEL COMFORTABLE WHEN DRIVING. I HAVE COMPLAINED THE DEALERSHIP SINCE NOVEMBER 19 AND STILL HAVE NOT RECEIVED A POSITIVE RESPONSE ALL I WANT IS TO HAVE A WORKING SAFETY SYSTEM..

Mileage: 17,000

THERE ARE TIME WHEN I GO TO TURN MY STEERING WHEEL I AM GIVING MORE FORCE TO TURN THE CAR AND MY CAR SHOWS NO MECHANICAL DAMAGE OR ANYTHING BUT WHEN I TURN THE WHEEL IT STIFFENS UP A LOT AND IT IS NOT SMOOTH TO TURN ESPECIALLY WHEN I AM MAKING TURNS I SEE THIS AND IT IS WHEN I'M IN THE CITY MOSTLY.

Mileage: 23,000

I WAS DRIVING ON I-65 AT 4:00 PM ON JUNE 19 WHEN MY SUNROOF EXPLODED. NO OTHER VEHICLES OR DEBRIS WERE NEAR ME AND NO INDICATION OF IMPACT.

Mileage: 62,000

TL* THE CONTACT OWNS A 2015 INFINITI Q50. WHILE DRIVING APPROXIMATELY 40 MPH, THE VEHICLE LOST POWER AND CRASHED INTO A GUARDRAIL. THERE WERE NO WARNING INDICATORS ILLUMINATED BEFORE THE FAILURE. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC. THE CONTACT SUSTAINED MINOR INJURIES, WHICH DID NOT REQUIRE MEDICAL ATTENTION. A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. INFINITI OF RIVERSIDE (3040 ADAMS ST, RIVERSIDE, CA 92504 (951) 373-5200) WAS NOTIFIED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS 40,000.

Mileage: 40,000

ISSUE: J HOOKS HOLDING FLOOR MAT CREATES DRIVER SAFETY ISSUE. J HOOKS ARE NOT STATIONARY AND WHEN ROTATE CAUSES FLOOR MAT TO COME LOOSE AND CREATE SAFETY ISSUE BY PREVENTING PROPERLY USING GAS AND BRAKE PEDAL. BACKGROUND: PURCHASED 2015 INFINITI Q50 AS CPO INFINITI THOUSAND OAKS W\11,992 MILES ON 5/4/16. 5/21/16 WITH 12,622 TOOK FIRST TIME INTO DEALER TO ADDRESS ISSUE OF DRIVER FLOOR MAT SLIDING AROUND AND BUNCHING UP PREVENTING ME AT TIME FROM APPROPRIATELY REACHING THE GAS OR BRAKE PEDAL. DEALER INDICATE THIS IS NORMAL WITH CAR MODELS.. 7/26/16 TOOK BACK TO DEALER AS ISSUE WAS HAPPENING DAILY. DEALER SRV MANAGER LOOKED AT AND ACKNOWLEDGED ISSUE AND OFFERED ME NEW FLOOR MATS AND REPLACEMENT OF J HOOKS. ACCEPTED. 8/11/16 3RD TIME AT 16,825 MILES.SAME ISSUE AGAIN WITH J HOOKS AND FLOOR MAT.THIS TIME DEALER INSPECTED AND INDICATED FLOOR MAT COMES LOOSE FROM FLOOR HOOK. UNABLE TO MAKE FURTHER REPAIR TO CAR. I ESCALATED TO INFINITI CUSTOMER AFFAIRS WITH LETTER AND PHONE CALL. I ASKED FOR VEHICLE BUY BACK UNDER CALIFORNIA LEMON LAW. APPROX. 12 DAYS LATER INFINITI REPLIED WITH FOLLOWING: INFINITI REALIZES SITUATIONS MAY OCCUR WITH YOUR INFINITI VEHICLE THAT, UNFORTUNATELY, FALL OUTSIDE OF THE PARAMETERS OF THE NEW VEHICLE LIMITED WARRANTY PROVIDED WITH YOUR VEHICLE. THEY SAID NO WAY IN NOT TO MANY WORDS. TALKED TO LEMON LAWYER AND SAID BE CAREFUL DEALER DOESN'T LIKE TO BE SUED, THEY WILL HIRE EXPERT WITNESSES AND IF YOU LOSE YOU HAVE TO PAY FOR THEIR WITNESSES. WENT BACK TO DEALER AND WAS TOLD ALL THE J HOOKS DO THE SAME THING. THEY ARE NOT STATIONARY AND ROTATE AROUND AND IF YOU STEP OUT OF THE CAR AND PUT PRESSURE ON THE MAT IT WILL MOVE. WAS TOLD WE WON'T PUT THIS INTO WRITING. I BOUGHT A UGLY ALL WINTER THICK RUBBER MAT WHICH IS HEAVY AND DOESN'T MOVE AROUND. GIVEN FLOOR MAT ISSUES INFINITI SHOULD TAKER OF ISSUE BETTER.

Mileage: 12,622

TL* THE CONTACT OWNS A 2015 INFINITI Q50. WHILE DRIVING AT APPROXIMATELY 30 MPH AROUND A CURVE WITH THE BRAKES ENGAGED, THE ACCELERATOR PEDAL WAS DEPRESSED BUT THE VEHICLE DECELERATED WITHOUT WARNING. THE ISSUE RECURRED MULTIPLE TIMES. THE VEHICLE WAS TOWED TO THE DEALER. THE TECHNICIAN INSPECTED THE VEHICLE AND STATED THAT IT WAS WORKING UP TO STANDARDS. THE FAILURE RECURRED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS UNKNOWN. MA 10/5 THE DEALER STATED THE VEHICLE WAS NOT DEFECTIVE. THEY WERE ABLE TO DEMONSTRATED THE STUMBLING OF THE ENGINE, WAS CAUSED BY THE CONSUMERS DRIVING HABIT OF BRAKING WITH HIS LEFT FOOT, RATHER THAN THE RIGHT. THE CONSUMER STATED HIS COMPLAINT WAS UNWARRANTED. UPDATED 10/19/15.*JB *CN

I JUST LEARNED THIS WEEK THAT MY INFINITI Q50 HAS BEEN DETERMINED TO BE ONE OF THE THREE VEHICLES MOST VULNERABLE TO AUTOMATED HACKING, ALONG WITH THE JEEP CHEROKEE AND THE CADILLAC ESCALADE. CONSEQUENTLY, CHRYSLER RECALLED 1/4 MILLION JEEP CHEROKEES IN ORDER TO PATCH THEIR SOFTWARE TO PREVENT HACKERS FROM TAKING REMOTE CONTROL OF THESE VEHICLES. I ATTEMPTED TO CONTACT INFINITI AND THEY REFUSE TO ACKNOWLEDGE THAT THERE IS EVEN A PROBLEM, LET ALONE THAT THEY ARE WORKING ON A PATCH OF THEIR OWN. I WANT TO KNOW WHAT THE NHTSA IS GOING TO DO ABOUT THIS, AS OPPOSED TO WAITING UNTIL SOMEONE IS KILLED BEFORE ACTING. HURRAH FOR CHRYSLER!

Mileage: 72,000