2017 INFINITI Q50 Problems

I have had several major problems with this car's engine. Once it shut down (was detecting no oil but was full) while on the interstate. Had to replace the radiator fan assembly and module. Coolant Leaks

My vehicle has been stalling and burning/leaking oil internally for some time now with white smoke coming from the rear. Well Infiniti sent a post card and stated that the emission warranty is extended for 120,000 miles which my vehicle has had the issue for some time and it was already over 120k miles at the time of the loss. The issue Infiniti reported in their postcard is, you may experience issue with the turbocharger, Overtime there is a possibility for the turbocharger thrust bearing to wear and leak oil internally. The most likely conditions you will experience are excessive white smoke from the exhaust, MIL-On an in rare cases reduced engine power or damage to the internal components. My vehicle is experiencing all these issues reported and the company, Infiniti, knows this is an issue and did not issue a recall the extended warranty instead, most people will not qualify for which will require people to thousand of dollars replacing the turbocharger assembly and engine control model. I got a quote and was told 8000 dollars unfortunately I cannot have repairs done. I believe it was January 2025 when the post card came from Infiniti identifying the issue

The contact owns a 2017 Infiniti Q50. The contact stated that while driving at an undisclosed speed, the air bag warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with air bags failure. The contact was informed that the air bag needed to be replaced. The vehicle was not repaired. The contact was informed of an unknown recall; however, the VIN was not associated with a recall related to the failure. The contact was advised to contact the NHTSA Hotline to report the failure. The contact stated that the vehicle failed to pass State Inspection due to the failure. The manufacturer was not made aware of the failure. The failure mileage was unknown.

The passenger seat occupant sensor is on. Dealer confirmed the code is related to a bad sensor so even if someone is sitting in the passenger seat and we are in an accident the airbag will not deploy. The dealer said a recall exists for earlier models but not for the 2017 even though they say it’s the same components. They want to charge me between $6,000 to $8,000 to repair which is almost as much as the car is worth. This unfortunately is cost prohibitive at this time so we are driving with the known risk. The light has been on for a couple of years now as we were hoping an additional recall would come out but it hasn’t which is why I am submitting this report.

The problem is on the recall, I understand my car is not on the VIN recall list but it's the same problem. Potential Recalls for 2017 Q50: Fuel Pump Control Module (2.0L engines): Improper software may cause the engine to stall.

The engine and turbo system failed in my 2017 Infiniti Q50 Signature Edition (VIN [XXX] ). The vehicle remains at CarMax Naperville, where it has been since March 2025. Internal repair orders show CarMax performed two failed inspections in August 2020 before selling the vehicle as “CarMax Certified” on September 3, 2020. The vehicle should not have passed certification. Shortly after purchasing the vehicle, I noticed it was pulling hard to the right. During my first tire rotation and oil change, the technician informed me that all four tires were severely dry-rotted and unsafe to drive on. CarMax had represented the vehicle as fully inspected and road-ready. These conditions suggest the vehicle had sat for an extended period after a prior four-point accident and should have never been certified for sale. None of this was disclosed to me at purchase. In March 2025, the engine failed. CarMax later reported that a replacement engine was installed, part #10102-6HN3A (single-turbo) instead of the required #10102-5CH2D (twin-turbo VR30DDTT). This engine does not match the original factory specifications for my VIN. Infiniti of Naperville confirmed that my vehicle qualifies for a free extended turbo and engine warranty (TSB P4A05/P4A06), but CarMax declined to use the required OEM one-time-use parts, voiding that coverage. CarMax has refused to provide inspection reports, diagnostic data, emissions test results, or engine serial numbers despite over forty written requests. I have no documentation confirming what work was performed or whether the vehicle is safe or compliant with emissions standards. The car has now been sitting at CarMax for over seven months, with rusted brakes and unknown mechanical condition. They are just concerned about me coming to get the car. This raises serious concerns about safety, emissions compliance, and potential consumer fraud involving improper certification and undisclosed prior damage. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

UNKNOWN Driver noticed increased volume of audio system without driver interference.

I went into Infiniti of Massapequa for an oil change I was told that my car has a recall for the ecm and by law they’re required to fix the recall in doing that it instantly caused a check engine light and are asking me to pay out of pocket for the oil pump adapter wire harness code P06DA repairs caused by the updated ecm I don’t feel that it is fair that I have to pay for anything due to issues from the dealers update of the ecm

I experienced an ongoing grinding/rattling noise from the wheel/brake area. The vehicle was serviced multiple times by a franchised dealer, which diagnosed the issue as brake-related and performed brake repairs. The noise was not resolved, and the vehicle was returned in the same condition. Shortly after service, an independent mechanic discovered a cracked/broken brake pad installed on the vehicle. Due to safety concerns, the manufacturer authorized inspection at a separate franchised dealership under different ownership. That inspection confirmed aftermarket brake pads, rotors, and related components of unknown origin installed on both the front and rear, missing OEM hardware, improper lubrication, and wheel bearing issues contributing to the noise. The inspecting dealer documented that the braking system must be returned to OEM specifications before safe operation and further diagnosis could continue. Despite this, the manufacturer has declined to require OEM remediation, and the vehicle continues to operate with unauthorized aftermarket brake components. The grinding noise has continued and has since shifted toward the rear. The condition is reproducible, documented by video, and confirmed by independent inspection. I believe the vehicle was returned to service in an unsafe condition involving a critical braking system.

The engine and turbo system failed in my 2017 Infiniti Q50 Signature Edition (VIN [XXX] ). The vehicle remains at CarMax Naperville, where it has been since March 2025. Internal repair orders show CarMax performed two failed inspections in August 2020 before selling the vehicle as “CarMax Certified” on September 3, 2020. The vehicle should not have passed certification. Shortly after purchasing the vehicle, I noticed it was pulling hard to the right. During my first tire rotation and oil change, the technician informed me that all four tires were severely dry-rotted and unsafe to drive on. CarMax had represented the vehicle as fully inspected and road-ready. These conditions suggest the vehicle had sat for an extended period after a prior four-point accident and should have never been certified for sale. None of this was disclosed to me at purchase. In March 2025, the engine failed. CarMax later reported that a replacement engine was installed, part #10102-6HN3A (single-turbo) instead of the required #10102-5CH2D (twin-turbo VR30DDTT). This engine does not match the original factory specifications for my VIN. Infiniti of Naperville confirmed that my vehicle qualifies for a free extended turbo and engine warranty (TSB P4A05/P4A06), but CarMax declined to use the required OEM one-time-use parts, voiding that coverage. CarMax has refused to provide inspection reports, diagnostic data, emissions test results, or engine serial numbers despite over forty written requests. I have no documentation confirming what work was performed or whether the vehicle is safe or compliant with emissions standards. The car has now been sitting at CarMax for over seven months, with rusted brakes and unknown mechanical condition. They are just concerned about me coming to get the car. This raises serious concerns about safety, emissions compliance, and potential consumer fraud involving improper certification and undisclosed prior damage. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The passenger seat occupant sensor is on. Dealer confirmed the code is related to a bad sensor so even if someone is sitting in the passenger seat and we are in an accident the airbag will not deploy. The dealer said a recall exists for earlier models but not for the 2017 even though they say it’s the same components. They want to charge me between $6,000 to $8,000 to repair which is almost as much as the car is worth. This unfortunately is cost prohibitive at this time so we are driving with the known risk. The light has been on for a couple of years now as we were hoping an additional recall would come out but it hasn’t which is why I am submitting this report.

I had a passenger seat belt light on and took it to Jim Coleman Infiniti in Bethesda,MD. They then were going to charge me a diagnostic fee to fix it, but instead proceeded to perform a zero point seat reset and got the error code B00A0 and then the passenger air bag light came on. They subsequently said that the vehicle was not covered under any recall or warranty and said that the seat needed to be replaced and informed me that it would be around $8000 at that time. Now it must be more. Looking at the recall campaign 16V244000 my vehicle does not qualify since it is one model year later, but I have seen others have the same issue that I have with the 2017 Q50. There is infact one in Florida that has a similar experience as mine. Talking to the dealer and Infiniti neither wanted to do a goodwill jesters and would only reduce the cost by a few thousand dollars. That still meant that I would need to put out more than $4000 to get a safety issue that should be covered. The symptoms and error codes are exactly the same. So I ask that you extend the recall campaign to the 2017 model year as well for the Q50. It is a safety hazard that will be present on the streets. The dealer also refuses to do the module reset saying that it will fail again. Pleas ask Infiniti to cover the cost of ensuring this critical safety for the passenger side is resolved for all model years that have the error code from the recall.

I am the owner of a 2017 INFINITI Q50 purchased in 2019. My vehicle has suffered three separate turbocharger failures in four years: 2021 (~75,000 miles): turbocharger failure; replaced under my extended warranty (~$6,000 authorization). 2023 (~98,000 miles): turbocharger failure; replaced again under extended warranty (~$6,000 authorization). 2025 (143,000 miles): diagnostic confirms another turbocharger failure; quoted $8,900 out of pocket because my extended warranty has expired. These failures follow the classic symptoms of excessive exhaust smoke and MIL illumination that INFINITI has explicitly linked to premature turbocharger bearing wear in the February 2025 “limited emission warranty extension” for 2016–2018 Q50 and 2017–2018 Q60 vehicles. INFINITI’s bulletin states the company “is conducting a warranty extension to Full Useful Life (FUL) of 10 years or 120,000 miles” for select turbo assemblies where white smoke/oil-leak with MIL-on requires turbo replacement, and explains the reason as “possibility that the turbocharger bearing may leak engine oil internally due to premature wear.” INFINITI’s public owner-facing campaign page likewise describes this extension and its terms (10 years/120,000 miles), including reimbursement for qualifying prior repairs. Infiniti Assist While my current mileage exceeds 120,000 miles, my car has required two full turbo replacements before 100,000 miles and now requires a third at 143,000 miles. This pattern evidences a latent defect present well within the extension period and is consistent with the failure mode INFINITI acknowledges. They have offered no help and only assume 50% responsibility when they 100% have manufactured defective and poorly labored parts.

The contact owns a 2017 Infiniti Q50. The contact stated while driving 40 MPH and attempting to accelerate, the RPM increased quickly; however, the vehicle lost motive power, prompting the contact to discontinue driving the vehicle. Upon arriving at the residence, the contact shifted the vehicle into park and released the brake pedal, and the vehicle started rolling forward. The contact engaged the parking brake to secure the vehicle. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 24V470000 (Power Train); but the VIN was not included. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 112,000.

I experienced an ongoing grinding/rattling noise from the wheel/brake area. The vehicle was serviced multiple times by a franchised dealer, which diagnosed the issue as brake-related and performed brake repairs. The noise was not resolved, and the vehicle was returned in the same condition. Shortly after service, an independent mechanic discovered a cracked/broken brake pad installed on the vehicle. Due to safety concerns, the manufacturer authorized inspection at a separate franchised dealership under different ownership. That inspection confirmed aftermarket brake pads, rotors, and related components of unknown origin installed on both the front and rear, missing OEM hardware, improper lubrication, and wheel bearing issues contributing to the noise. The inspecting dealer documented that the braking system must be returned to OEM specifications before safe operation and further diagnosis could continue. Despite this, the manufacturer has declined to require OEM remediation, and the vehicle continues to operate with unauthorized aftermarket brake components. The grinding noise has continued and has since shifted toward the rear. The condition is reproducible, documented by video, and confirmed by independent inspection. I believe the vehicle was returned to service in an unsafe condition involving a critical braking system.

In October of 2023 I was driving onto the high way and my car just started to slow down I could not accelerate that gas while I was on the highway which is very dangerous when you are on the highway. My car turn off completely the engine light started to blink. All the lights were blinking. The only thing that was on was my radio. I could not move the car I was having. Trouble putting the car into park. Everything was stuck. Good thing I was not in the middle of the highway and not on a really busy highway but it was late at night. Drivers on the high way and myself are out at risk I could not even put my hazards on. A car could have crash into me and serious injury’s could have happen. I was stuck and was having trouble putting the car in park. Could not go into neutral. For a car to come to a sudden stop not be able to put the car in park that can be a risk factor due to if the car turn back on going into neutral on its own. The car was fixed with new engine at an auto body In July or August 2024 Now the engine light is on again the car will not even turn on. All the oil leaked out. Infiniti did my last oil change and said it was due at 117k which that is my current reading. When the oil all leaked out the car had a steering issue it crashed into a guardrail. That is the second time the car slow down had some type of issue is a big risk factor In August 2024 when the oil came out the car that can cause a fire and lost of steering the car crashed into rail with us in it. I did not have any warning signs about this going to happen. The car has not been driven since

My vehicle's windshield washer sensor has malfunctioned as it regularly flashes a warning light indicating low washer fluid regardless of the actual washer fluid reservoir level. The persistent warning light on the dash is a constant distraction to the driver. Furthermore, a driver may become ambivalent to the warning light if another system actually malfunctions (or in the case of the washer reservoir actually being low or empty) thus creating a real safety threat. Infiniti vehicle forums as well as my independent mechanic note this problem to be fairly widespread and, according to my mechanic, is also prevalent in certain Nissan models. I brought this matter to the attention of Infiniti's Customer Care team but no action was taken to remedy the situation nor does it seem any action will be forthcoming. While this may seem to be a relatively small issue, such small issues can still result in significant negative outcomes if not addressed. Given the regularity in which this issue occurs, the manufacturer should be responsible for repairing this defect.

My sunroof exploded when I was driving. No warning. Weather was perfect where I was. No other vehicles around me, I was completely alone on the highway.

I experienced an ongoing grinding/rattling noise from the wheel/brake area. The vehicle was serviced multiple times by a franchised dealer, which diagnosed the issue as brake-related and performed brake repairs. The noise was not resolved, and the vehicle was returned in the same condition. Shortly after service, an independent mechanic discovered a cracked/broken brake pad installed on the vehicle. Due to safety concerns, the manufacturer authorized inspection at a separate franchised dealership under different ownership. That inspection confirmed aftermarket brake pads, rotors, and related components of unknown origin installed on both the front and rear, missing OEM hardware, improper lubrication, and wheel bearing issues contributing to the noise. The inspecting dealer documented that the braking system must be returned to OEM specifications before safe operation and further diagnosis could continue. Despite this, the manufacturer has declined to require OEM remediation, and the vehicle continues to operate with unauthorized aftermarket brake components. The grinding noise has continued and has since shifted toward the rear. The condition is reproducible, documented by video, and confirmed by independent inspection. I believe the vehicle was returned to service in an unsafe condition involving a critical braking system.

Hydraulic Bushing of the Lower Control Arm Leaking, very common problem amongst Q50 models.

Automatic Emergency Braking system activates when approaching a railroad crossing downhill (no train, signals, or warnings visible) and brings the vehicle to a complete stop. I could be rear-ended if a following vehicle were too close behind me. Dealer has been advised of problem but had no explanation or interest in pursuing issue. No one has inspected the vehicle for this issue. No warnings prior to brakes activating. Date below is most recent incident. It first occurred when car was new in 2017

I PURCHASED MY 2017 INFINITI Q50 AS A CERTIFIED DEALER OWNED VEHICLE WITH 4710 MILES ON IT FROM AIRPORT INFINITI ON 12/31/2018. SINCE TAKING POSSESSION OF THE CAR, I HAVE HAD THREE SEPARATE INSTANCES WHERE MY CAR LOST POWER DURING ACCELERATION, IN WHICH ONE OF THE INSTANCES NEARLY CAUSED ME TO BE HIT BY A SEMI-TRUCK WHEN CROSSING A DIVIDED HIGHWAY. I HAVE PROVIDED VIDEOS TO THE MANUFACTURE BUT THEY HAVE REFUSED TO TAKE ACTION BECAUSE THE VEHICLE DOES NOT SET ANY DTC CODES. WHEN THIS CONDITION HAPPENS MY 3.0T Q50 ACCELERATES EXTREMELY SLOW EVEN WITH 100% THROTTLE. THE NET RESULT IS THAT WHEN I INTEND TO CROSS A DIVIDED HIGHWAY, I EXPERIENCE A 1-1.5 SECOND DELAY FROM THE TIME I PUSH DOWN THE ACCELERATOR TO WHEN THE CAR BEGINS TO MOVE, THEN THE ACCELERATION FROM 0-15MPH CAN TAKE UPWARDS OF 5-6 SECONDS. THE RESULTING FEELING IS A CAR THAT ROLLS INTO A DANGEROUS INTERSECTION AND EXHIBITS STALL LIKE CONDITIONS. ONLY ONCE DID THE CAR SET DTC CODES DURING THIS INSTANCE. THE CODES SET WERE B130D, C1A16 AND PO340. THESE CODES SET THE FIRST INSTANCE, BUT HAVE NOT SET DURING THE PAST TWO OCCURRENCES OF THE SAME ACCELERATION ISSUE. THESE INSTANCES ARE COMPLETELY RANDOM WHICH MAKE THEM EXTREMELY DANGEROUS. FOR INSTANCE, THE CAR WILL BE DRIVING COMPLETELY NORMAL, I WILL STOP AND AN INTERSECTION AND THEN WHEN I GO TO TURN OUT INTO THE INTERSECTION, I GO INTO THIS STALL CONDITION WITHOUT WARNING. THE DEALERSHIP HAS HAD THE CAR 4 SEPARATE TIMES AND EACH TIME THEY HAVE REFUSED TO FIX ANYTHING ON THE CAR, DESPITE HAVING A VIDEO OF THE OCCURRENCE AND CONFIRMING THAT THE ACCELERATION WAS ENTIRELY ABNORMAL. I HAVE NO CHOICE BUT TO DRIVE THIS CAR IF INFINITI REFUSES TO FIX IT, BUT FEEL IT IS LIKELY THAT IT WILL CAUSE INJURY OR DEATH TO ME AND MY FAMILY IF I DRIVE IT. I HAVE ATTACHED A SUMMARY OF THE DAILY LOG I HAVE BEEN KEEPING SINCE I PURCHASES THE CAR ON 12/31/2018.

The seat belt light went on without a passenger and the dealer decided to perform a zero point reset on the passenger seat and that resulted in a failure and now the airbag light is on. This causes the passenger airbag to not be operational. Before it was just the seat belt. They are now asking for $8000+ to replace the seat and OCS module and they said that they would cut the price by 50% but that is still $4000. The seat belt is covered by 10 year warranty but the airbag is covered only 7 year. I feel that since the seat belt was the iniial problem that it should all be covered under the warranty. Searching online there are numerous other Infiniti owners are having the same issue with the passenger seat and they are all being told that the seat needs to be replaced. This looks to be like a fauly module issue and thiink that Infiniti should be responsible for the fix. This has been happening with models from 2014-2018 two different series of Q50 models. THIS CAUSES THE PASSENGER AIRBAG TO BE NON OPERATIONAL AND FEEL THAT THERE ARE A LOT OF Q50 and other models on the road that are NO LONGER SAFE TO DRIVE!!!!

I took the car into the dealership to diagnose the reason that I was getting a Seat Belt light and they said that the guide suggested to do a zero point reset on the seat. When they attempted this they said that it failed and now the system has an airbag light on. There is no more seat belt light on now for the passanger side, but there is a hard error code for the airbag system on the passenger side. The Dealership now says the cost to repair is over $8500 when the car is only valued at $10000. I saw that there was a voluntary recall on a 2016 edition and it said that if the zero point reset should fail then the OCS module needs to be replaced, but now they are saying tha the OCS module and Seat need to be replaced. This looks to be like an issue with the model itself. The reason this is a safety issue, is that now the airbags will not work on the passenger side. This is caused by the zero point procedure that Infiniti has instructed their techs to do. I believe they are causing issues and had this not been needed then I would not have had an airbag issue. If there was an airbag issue before this procedure then the symbol was not correct and was false. It was a safety issue since the Passenger side airbag will not deploy in this case.

Affected: Steering/Electrical/Direct Adaptive Steering, 50K miles While driving my 2017 Infinity Q50s under normal driving conditions, the vehicle suffered an instantaneous, catastrophic, and total failure of the power steering assist system without any prior warning or dashboard fault indicators. The sudden loss of steering assist immediately caused the steering wheel to become incredibly heavy and virtually locked, requiring extreme, dangerous physical exertion to maintain minimal control over the direction of the vehicle. Due to the violent and unpredictable change in steering dynamics at speed, I was forced out of my lane and ran over a curb and came moments away from experiencing a severe, life-threatening collision. The vehicle was rendered entirely undrivable and presents an immediate, catastrophic crash hazard. It had to be flatbed-towed to Infinity Valencia dealership. I am the original owner of this vehicle, and it has been meticulously maintained with exceptionally low mileage of 50,000 mile. Infinity previously issued mandatory federal safety recalls identical Direct Adaptive Steering (DAS) "steer-by-wire" software and module failures on the 2014-2016 model years (e.g., NHTSA Campaign number 16V433000). While the manufacturer asserted that the underlying engineering and software defects were fully resolved for the 2017 production year, this incident definitely proves that the catastrophic safety defect remains active, unmitigated, and present in the 2017 model year. Infinity Consumer Affairs and corporate databases currently lack proactive safety campaign for this specific VIN, leaving consumers entirely expose to a known, severe safety liability. I am filing this formal complaint to urge the National Highway Traffic Safety Administration (NHTSA) to open a formal defect investigation into the 2017 Infinity Q50/Q50s steering architecture and compel the manufacturer to expand the safety recall before this unmitigated defect results in fatal accident.

WHEN STARTING UP FROM BEING PARKED THE WHEELS STEER THE CAR TO THE RIGHT WHILE I HAVE TO PULL THE STEERING WHEEL TO THE LEFT TO KEEP THE CAR DRIVING STRAIGHT. THE MOMENT I REMOVE THE PRESSURE FROM PULLING THE WHEEL LEFT THE CAR TAKES AN IMMEDIATE RIGHT TURN. THIS IS NOT A FRONT END ALIGNMENT ISSUE AS THE PROBLEM WILL CORRECT ITSELF. IT HAS TAKEN AS SHORT AS A COUPLE OF MILES OR AS LONG AS A FEW SHORT TRIPS FOR IT TO CORRECT ITSELF. IT HAS HAPPENED FIRST THING IN THE MORNING, IN THE AFTERNOON AND EVENING. THIS SAFETY ISSUE STARTED WHEN THE OUTSIDE TEMPERATURE WAS STILL WARM. WHEN THE STEERING DOES CORRECT ITSELF I CAN FEEL THE STEERING WHEEL BEING PULLED TO THE RIGHT AND THEN THE CAR DRIVES STRAIGHT AGAIN WITHOUT ME APPLYING PULLING PRESSURE ONE WAY OR THE OTHER.

DUNLOP SP SPORT 5000 DSST P245/40RF19 DEVELOPED SIDEWALL BUBBLE SPONTANEOUSLY. THESE TIRES WERE STANDARD WHEN THE CAR WAS PURCHASED NEW. I HAVE SEEN NUMEROUS REPORTS OF SIMILAR COMPLAINTS OF SIDEWALL BUBBLES FOLLOWING POTHOLE ENCOUNTERS. TIRES HAD ONLY 17,500 MILES ON THEM. THE FACT THAT THERE ARE SO MANY SIMILAR COMPLAINTS LEADS ME TO BELIEVE THERE IS A MANUFACTURING ISSUE.

The sunroof leaks when it rains creating water inside the interior that holds standing water. It has caused issues with mold which my son it highly allergic to. This issue seems to be a common defect in sunroofs for Infiniti. I've had it repaired, but the problem persists. I have to park it in the garage but I'm not able to when I'm at work.