2019 Infiniti QX50 Complaints

POWER TRAIN,ENGINE — Filed 08/20/2026

While driving on the highway the vehicle would not accelerate and the oil pressure light came on. After pulling over we noticed a slight burning smell and cut the engine. After a few minutes we tried to start the car again and it would not start. Vehicle was towed to independent repair shop who told us the engine had seized. We then learned of the current recall effecting this make model and year of vehicle. The vehicle experienced the same series of events outlined in a service bulletin for the recall. Vehicle was then towed to local Infiniti dealer and they were told the engine is seized and asked to drop oil pan per recall guidelines to confirm and diagnose. After not hearing from dealer after 2 weeks I follow up to be told the vehicle had not been looked at yet and they would get it in that day and call me no later than next day. Once week goes by and they still had not contacted me. I contact them and am told the only thing wrong with my vehicle was a dead battery and that would cost X amount to replace. At that point my car had been sitting in the summer sun for 3 weeks, of course the battery is dead. I reluctantly agree to the repair. After another week I follow up on the repair and am told after replacing the battery the car still will not start and I asked again about the recall diagnosis. After another week, we contact them and am told the car shows information consistent with bearings recall and they submit to Infiniti to approve. A repair timeline is discussed at this time. 24 hours later we are contacted by dealer for first time and told it now does not fit under recall. Have a case with Nissan consumer affairs. We have asked several times for work order and photos of what they are looking at and have not received. Dealer is now asking for $300 plus dollar diagnostic fee to see what is wrong. They say sludge caused engine failure and not recall issue. It has been 46 days at this point and no resolution. Per recall, sludge can be caused by bearings issue

ENGINE AND ENGINE COOLING — Filed 08/20/2026

The contact owns a 2019 Infiniti QX50. The contact stated that while driving 70 MPH, the vehicle stalled; however, the contact was able to pull off the highway safely to a safe place. There was an abnormal burning odor coming from the vehicle. The oil pressure warning light was illuminated. The vehicle was towed to an independent mechanic and was diagnosed with a seized engine. The vehicle was later towed to dealer to see if the failure was associated with NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling). However, the contact was notified that failure was caused by sludge in engine and could not qualify under the recall. The contact stated that the vehicle had exhibited the failure described in the recall, but the manufacturer and dealer refused to repair the vehicle without charge. The manufacturer was contacted by phone and made aware of the failure. The failure mileage was approximately 94,000.

ENGINE — Filed 07/21/2026

#11753348 - on 7/1/2026, Infiniti Dealer found metal shavings actively present in my oil pan during a recall inspection. They passed the vehicle as good condition stating nothing found per a vehicle inspection report given to me. On July 25, 2026, my engine red light came on while driving and my engine began to shake violently and making a loud clunking noise. I towed the vehicle back to the dealer for another recall inspection. On 8/30/2026, the dealer informed me that the engine was failing due to the recall and needing bearing replacement but due to it passing back in July I would be responsible for replacing the bearings. They invoiced me for excess of 15,000, the diagnostic inspection of 270 and demanded that I return the loaner vehicle. When I returned the loaner vehicle on 9/3/2026, they attempted to sell me a new/pre-owned vehicle instead of providing me a written denial refusal notice of not honoring the vehicle recall. On 9/5/2026 Infiniti Consumer Affairs representative verbally confirmed that they were informed by the dealer that there were metal shavings present in my oil pan but denied the repair because there were not "chunks" or "clusters" of metal present. The manufacturer verbally claimed that the metal debris did not meet an internal, undocumented threshold of "chunks" or "clusters," and explicitly stated that Infiniti considered my vehicle's mileage and vehicle age and sludge present on the latter inspection that was not present on July 1 nor reported in making this denial decision. The representative also referenced a photograph sent to them at the end of August as justification for the denial. This photograph was not taken nor sent to them during the actual July 1st inspection. The dealer had already informed me that they did not send the manufacturer a photograph on July 1. The manufacturer refused to provide me written notice refusing to honor the recall and said to get it from the dealer.

ELECTRICAL SYSTEM,UNKNOWN OR OTHER,ENGINE — Filed 08/30/2026

To Whom It May Concern, I am writing to formally request immediate assistance regarding a serious failure in my INFINITI vehicle. The vehicle’s compressor stopped working with fewer than 60,000 miles driven, which is unacceptable for a new vehicle and raises significant concerns about manufacturing quality and safety. This failure is especially troubling because the vehicle has already been subject to multiple serious engine-related recalls number NHTSA Recall 25V-437. The air conditioning stopped working properly after the car was serviced for this recall. The combination of repeated critical issues and now a major component failure at under 60K miles suggests a pattern of defects that should not exist in a vehicle of this class or price point. I am requesting the following: A full diagnostic review at no cost, Taverna Infinity is trying to charge me $300.00 for a simple diagnosis. Written confirmation of whether this failure is related to existing or pending recalls A clear explanation of how INFINITI intends to ensure the long‑term reliability and safety of this vehicle Consideration for replacement or buyback if the vehicle continues to demonstrate systemic defects I expect a prompt response, as this situation has already caused significant inconvenience and raises legitimate concerns about the vehicle’s safety and reliability. Thank you for your attention to this matter. I look forward to your timely reply. Sincerely,

ENGINE — Filed 07/17/2026

The vehicle has metallic noises in the engine and drastic loss of power, compromising safety on the road. The problem in the VCR actuator was verified by Infiniti Taverna ([XXX]) and denied the repair by the extended warranty by them of up to 120k miles (currently my car is at 98k). There is an injection light on the dashboard. It was reported to Infiniti USA and they also denied the repair. The vehicle is my only means of transport to serve my [XXX] son. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ENGINE — Filed 08/13/2024

The contact owns a 2019 Infiniti QX50. The contact stated that the vehicle was running rough while driving. The vehicle was taken to a dealer where an unknown recall inspection was performed, and the contact was informed that there was no debris found inside the oil pan. However, the failure persisted. Additionally, the contact stated that the vehicle made abnormally loud sounds while driving. The vehicle was taken to two different independent mechanics, where it was diagnosed and determined that four engine mounts had detached and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 115,000.

ELECTRICAL SYSTEM,STRUCTURE — Filed 08/04/2026

The power liftgate (automatic trunk) system on my 2019 Infiniti QX50 malfunctioned. After fully opening, the liftgate unexpectedly closed on its own without any warning beeps or resistance detection. This poses a severe safety risk. The heavy door struck my head, causing a physical injury (a severe bump/contusion). The vehicle and the affected components are available for inspection upon request. This problem has not yet been inspected, reproduced, or confirmed by a dealer, manufacturer, police, or insurance representatives, as I am reporting this dangerous safety defect immediately. Furthermore, there were no warning lamps, error messages, or any other symptoms prior to this sudden failure.

ENGINE AND ENGINE COOLING — Filed 07/27/2026

The contact owns a 2019 Infiniti QX50. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the vehicle was shaking erratically. In addition, the oil light and check engine warning lights were illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The dealer was made aware of the failure. In addition, the vehicle was inspected on 07/01/2026 by the dealer under NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling). The contact was informed that the vehicle had passed the inspection. The manufacturer was not made aware of the failure, and a case was filed. The contact was informed that the mileage on the vehicle was over the mileage limitation. The failure mileage was approximately 200,000.

POWER TRAIN — Filed 05/13/2026

My 2019 Infiniti QX50 has the KR20DDET 2.0L VC-Turbo engine involved in NHTSA Recall 25V437/Infiniti Campaign R25B2 for potential engine-bearing failure, but my VIN does not currently show an open recall. The vehicle is at Infiniti Milwaukee, [XXX], [XXX]. During inspection, bronze-colored metallic glitter/debris was found in the engine oil. This may indicate internal bearing wear and appears consistent with the metal debris that Recall 25V437 requires dealers to check for in the lower oil pan. The dealership is refusing to acknowledge or report the bronze-colored debris as possible bearing material. It reported only “engine sludge” to Infiniti and is treating the engine repair as customer-pay. Sludge and bronze-colored metallic particles are visibly different conditions. The vehicle and engine are available for inspection at the dealership. I requested preservation of the oil, filter, oil-pan contents, photographs, video and technician findings. Bearing failure could cause engine damage or loss of power while driving, increasing crash risk. Warning lights before inspection: UNKNOWN. The exact composition of the debris is UNKNOWN pending testing. You see metal debris in oil pan of the video of an engine that failed citing sledge while clearing seeing metal debris in the photo provided by the dealership. I request that NHTSA investigate whether this vehicle was incorrectly excluded from the recall and whether recall-related metallic debris is being misclassified as sludge. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

LATCHES/LOCKS/LINKAGES — Filed 07/19/2026

The contact owns a 2019 Infiniti QX50. The contact stated that after turning the vehicle off and exiting with the keys remaining inside the vehicle, the contact opened rear driver’s side door to retrieve a diaper bag and closed the door. While attempting to open the rear passenger’s side door to remove the child from the vehicle, the contact discovered that all four doors were locked. The Police and Fire Department was called to the scene. The window was intentionally fractured to unlock the door, and the child was removed from the vehicle. The cause of the failure was not yet determined. The local dealer was notified of the failure. The manufacturer was not contacted. The failure mileage was 57,859.

POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE — Filed 06/22/2026

2019 Infiniti QX50 with engine bearing failure defect matching NHTSA Recall #25V-437. Vehicle was sold to me on 12/24/2025 by a dealer, MORE THAN FIVE MONTHS after the recall was issued on 07/14/2025. The dealer NEVER disclosed the active, unrepaired safety recall. Two months after purchase, the engine developed loss of power and unusual noises - exact symptoms described in the recall. An independent mechanic diagnosed a pre-existing camshaft bearing defect. Despite component replacement, symptoms persist, confirming the defect was present at time of sale. This is a serious safety violation. The dealer knew or should have known about the recall via CARFAX and failed to disclose it, violating federal law 49 U.S.C. § 30120. The vehicle is unsafe to drive with an unrepaired engine bearing failure. Safety Risk: Engine bearing degradation can lead to complete engine failure while driving, resulting in loss of motive power and crash risk. Requested Action: Federal investigation into dealer's failure to disclose active safety recalls.

ENGINE — Filed 06/19/2026

The issue on the 2019 Infiniti QX50 it's not the motor that they had the recall on it's the VCR actuator it goes bad causes the bracket that's connected to rub against the side of the engine block causes it to have metal shavings and the car to go in limp mode and can cause an accident it's a common issue just put one in and already bad not even a year The original one made it to $47,000 mi before going bad

UNKNOWN OR OTHER — Filed 05/08/2026

The vehicle experienced hesitation, delayed acceleration, and multiple warning lights while driving. The loss of power was severe enough that the driver became afraid to make left turns across traffic because the vehicle would not accelerate quickly or consistently when needed. This created a significant safety risk, as the driver could not reliably judge whether the vehicle would clear an intersection before oncoming traffic. A diagnostic trouble code related to the turbocharger control system was retrieved during the first visit to the dealership. The vehicle was brought in for a recall inspection involving potential engine bearing wear and oil pressure issues, but the recall inspection was not performed on the first visit and was rescheduled. On the way to the recall appointment, additional warning lights illuminated and the vehicle again lost power. The dealership kept the vehicle and stated that further diagnostics were needed. Over several days, the dealership reported that diagnostics were being performed, but no diagnostic results, measurements, technician notes, or recall determination were provided. The manufacturer later confirmed that they had not received any diagnostic information from the dealership and could not proceed with the recall case. The dealership verbally stated that the turbocharger issue was “not related to the recall,” but no documentation was provided to support this. Instead, the dealership sent a cost‑sharing repair proposal without identifying the failed component, the cause of the failure, or whether the failure was related to the recall. Warning lamps and reduced performance first appeared on the initial date of symptoms and continued through the recall appointment. The recall process remains incomplete because the dealership has not provided the required diagnostic documentation.

POWER TRAIN — Filed 01/25/2025

I am the owner of a 2019 Infiniti QX50, VIN [XXX] , and I am filing this complaint due to repeated, severe mechanical failures that have rendered my vehicle unreliable and unsafe. Since purchasing the vehicle, I have experienced catastrophic failures requiring two complete engine replacements, two turbocharger replacements, and one transmission replacement. My vehicle has spent over one year cumulatively at repair shops, leaving me without transportation and in constant fear for my safety. I am unable to drive this vehicle on the highway or for long distances due to the very real risk of sudden engine stall or failure at speed. I am aware that Nissan has issued Recall 25V-437 acknowledging manufacturing defects in the VC-Turbo engine bearings on the 2019–2022 Infiniti QX50, and I believe my vehicle's repeated failures are directly related to this defect. Despite multiple repair attempts by authorized Infiniti dealerships, the underlying issues have not been resolved. I am requesting that NHTSA investigate this vehicle and pressure Nissan/Infiniti to provide an appropriate remedy, including a full vehicle repurchase or buyback. My family's safety is at risk every time we are forced to drive this vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ENGINE AND ENGINE COOLING — Filed 04/28/2026

The contact owns a 2019 Infiniti QX50. The contact stated that while driving at an undisclosed speed, there was an abnormally loud sound coming from the vehicle. There was no warning light illuminated. The contact received notification of NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling). The vehicle was taken to the dealer, where it was diagnosed with engine failure due to metal shavings found in the oil pan. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact was denied an engine replacement. The dealer informed the contact that the claim was denied due to the vehicle exceeding the warranty mileage and a lack of proper maintenance. The contact provided maintenance records; however, the claim was still denied. The dealer stated that the failure was related to insufficient maintenance and not the recall. The manufacturer was made aware of the failure, and a case was opened. The failure mileage was approximately 135,000.

ELECTRICAL SYSTEM,FORWARD COLLISION AVOIDANCE — Filed 04/22/2026

Good morning, I am writing to formally escalate a serious and unresolved safety concern involving my vehicle and to follow up on my existing case (Case #XXX). On April 22, 2026, while driving on the highway at approximately 55 mph, my vehicle suddenly performed a hard stop as if it detected an imminent collision. At the time, there were no visible obstructions or vehicles directly in front of me that would have warranted automatic emergency braking. This is a repeat issue. A nearly identical incident occurred on August 8, 2025, which was previously reported. Despite that report, the problem remains unresolved and continues to present a significant safety risk. These unexpected braking events create a hazardous driving condition with a clear risk of rear-end collision, particularly at highway speeds. Based on the pattern and circumstances, this strongly suggests a false activation of the automatic emergency braking system or a related safety system malfunction. Given the repeated nature of this issue and the potential safety implications, I am formally requesting: * Immediate escalation of this case to the appropriate engineering or safety review team * A full investigation as a potential safety defect * Identification of any related technical service bulletins, recalls, or known system issues * A clear plan and timeline for diagnosis and resolution at an authorized INFINITI dealership * Confirmation of whether reimbursement or other corrective action will be considered given the ongoing safety risk and repeated service attempts Please confirm receipt of this escalation in writing, along with next steps and assigned case handling details. I expect timely and serious attention to this matter given the safety risk involved. Sincerely, XXX XXX

ENGINE — Filed 03/07/2026

Recall on my 2019 infiniti qx50. I am a 100% service connected from the vietnam war I can no longer drive and because this is a critical safety recall I sent a email to infiniti asking for help in getting the vehicle towed repaired and returned to my home address it is 100+ miles one way. Again, I am a 100% service connected war veteran. The car was being used to carry me to appointments most of which is the VA. medical center. I am on disability income and i can not afford to have it towed so the vehicle is garaged at my home because I don't want anyone driving get hurt.

UNKNOWN OR OTHER — Filed 03/05/2026

Sun roof exploded while driving at highway speed.All glass came into vehicle and caused a critical issue requiring me to pullover in an unsafe manner in order to not get cut by glass.

POWER TRAIN,ENGINE — Filed 04/05/2026

The car had a power failure so I took it to the dealer to have it checked since it had an open recall, according to what the mechanic tells me is that the fault comes from the mild tree, but he does not tell me what causes that failure and he has not given me the results of the recall either

ENGINE — Filed 02/16/2026

I am filing a safety complaint regarding my 2019 Infiniti QX50 experiencing engine failure consistent with known bearing defects. On February 13, 2026, while driving from [XXX] to [XXX] on the highway, my vehicle began shaking severely, producing a rattling/knocking noise from the engine, and losing power while in motion. This created a dangerous driving condition and required the vehicle to be towed. The vehicle was taken to a repair shop in [XXX] , where it was diagnosed with engine bearing failure. The shop indicated that this issue was consistent with a known defect and that there was an active recall related to engine bearings at that time. Based on that information, the vehicle was towed to Bob Moore Infiniti in [XXX] for recall inspection and repair. Initially, the dealership indicated that there was an issue and that it was associated with a recall. However, they later reversed their position and stated that the vehicle was “fine” and did not perform any recall repair, despite the ongoing symptoms and prior diagnosis. The vehicle continues to exhibit the same dangerous symptoms, including shaking, engine knocking, and loss of power, and remains diagnosed by another repair facility as having engine bearing failure. This is a serious safety concern because the vehicle can lose power unexpectedly while driving at highway speeds. Additionally, there appears to be inconsistency in how this known defect is being handled, as my vehicle was initially identified as affected but later denied repair. I am requesting further investigation into engine bearing failures in the Infiniti QX50, as well as inconsistent recall application for this defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ENGINE — Filed 05/09/2025

The contact owns a 2019 Infiniti QX50. While the contact's son was driving at an undisclosed speed, the engine seized with several unknown warning lights illuminated. The contact stated there was smoke and fire coming from the engine compartment. In addition, the smell of burning oil and smoke was inside the vehicle. The vehicle was towed to an independent mechanic, where it was diagnosed with engine failure. The contact was informed that the independent mechanic was not an engine expert and recommended that the vehicle be towed to an engine expert. The vehicle was towed to an alternate independent mechanic, where the vehicle was diagnosed with total engine failure. The contact was informed that the engine needed to be replaced. The vehicle was repaired. The engine was replaced with a used engine. The contact later received notification of NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling); however, the part to do the recall repair was not available. The manufacturer was made aware of the failure, and a case was filed. The contact submitted a claim for reimbursement for the repair. The contact was required to submit several documents, including a printout of the repair. The contact was informed that the report needed to include the engine failure code and engine report for the request for reimbursement. The independent mechanic was contacted by the manufacturer and the manufacturer received verbal confirmation of the repair; however, the manufacturer insisted on printed documentation of the repair. The failure mileage was approximately 98,500.

EXTERIOR LIGHTING,UNKNOWN OR OTHER — Filed 11/29/2024

I was taking a box out of my trear trunk liftgate . I turned around and secluded my hand on th dreary tail light that is close to the side of the liftgate I required 7 stitches

SERVICE BRAKES — Filed 06/02/2020

TL* THE CONTACT STATED THAT WHILE HER DAUGHTER WAS DRIVING SHE REAR-ENDED A 2019 INFINITI QX50, WHICH ABRUPTLY STOPPED DUE TO THE AUTOMATIC EMERGENCY BRAKING SYSTEM. THE CONTACT STATED THAT THE AIR BAGS DID NOT DEPLOY IN HER DAUGHTER'S VEHICLE. THE DRIVER DID NOT SUSTAIN ANY INJURIES. A POLICE REPORT WAS FILED. THE VEHICLE WAS DAMAGED BUT NOT TOTALED. THE VEHICLE WAS TOWED TO A REPAIR SHOP. THE MANUFACTURER AND THE DEALER WERE NOT CALLED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS UNKNOWN. THE VIN WAS NOT AVAILABLE.

VEHICLE SPEED CONTROL,UNKNOWN OR OTHER,ENGINE — Filed 04/28/2020

WHILE DRIVING, THE VEHICLE WILL DECLINE IN ACCELERATION AND YOU CAN NOT INCREASE ACCELERATION. WHEN TURNING THE VEHICLE OFF, THE CAR WILL PROCEED AT A SLOW PACE. INFINITI DEALER TOLD ME THAT I NEEDED TO LET THE CAR WARM UP FOR 30 MINUTES. THE ENGINE MAKES NOISE AS IF THE VEHICLE IS IN NEUTRAL. AT TIMES, ONCE TAKING YOUR FOOT OFF THE BRAKE PEDAL TO SWITCH THE GAS, THE CAR WILL TAKE OFF FROM UNDER YOUR FOOT. WHILE DRIVING, THE CAR WILL COME TO A COMPLETE HALT AS IF IT WAS APPROACHING A COLLISION. ALL EMERGENCY INDICATORS WILL GO OFF. THE CAR MUST BE TURNED OFF TO RETURN TO DRIVING. VEHICLE HAS BEEN SERVICED BY INFINITI, WHERE DIAGNOSTICS ARE RAN BUT DOES NOT REGISTER AN ISSUE. LAST SERVICING, THE SERVICE MAN TOLD ME TO JUST CALL CONSUMER AFFAIRS, BUT CONSUMER AFFAIRS ASKED FOR A CLAIM NUMBER WHICH I DID NOT HAVE. ON APRIL 28TH, THE VEHICLE WAS MAKING A LEFT TURN AND FLIPPED UPSIDE DOWN TO THE RIGHT. NOTHING WAS HIT FOR THE CAUSE OF THIS ACCIDENT. ALL AIRBAG DEPLOYED BUT THE STEERING WHEEL AND REAR AIRBAG. STEERING WHEEL WAS LOCKED TO THE LEFT AND COULD NOT BE MOVED. VEHICLE WAS DECLARED TOTALED. DUE TO COVID-19, THE VEHICLE HAS BEEN DRIVEN FOUR TIMES SINCE NY DECLARED A SHELTER-IN.*DT*JB*DT *TR*JB

STRUCTURE,UNKNOWN OR OTHER,SERVICE BRAKES — Filed 10/05/2018

THE FORWARD EMERGENCY BREAKING(FEB) WITH PEDESTRIAN DETECTION AND PREDICTIVE FORWARD COLLISION WARNING(PFCW) DID NOT ACTIVATE WHEN I WAS STARTING UP FROM A 4 WAY STOP SIGN INTERSECTION ON A CITY STREET. MY 2019 QX50 WAS IN MOTION WHEN IT CRASHED INTO ANOTHER VEHICLE ON THE PASSENGER DOOR AND WHEEL WELL. AIRBAGS DID NOT DEPLOY AS THE QX50 WAS , I ESTIMATE, TRAVELING <15 MPH. DAMAGE TO THE 2019 QX50 WAS APPRX $9K. I WILL SHARE AUTO BODY ITEMIZED REPAIR PARTS ONCE THE QX50 IS RETURNED TO ME. DUE TO THE QX50 BEING A 2019 NOT ALL PARTS ARE AVAILABLE IN THE INFINITI INVENTORY. REPAIR SHOP WORKING W/INFINITI DEALERSHIP TO WORK ON A SOLUTION. THE 2019 QX50 WAS MOVING SO SLOW THAT THERE WAS NO DAMAGE TO THE SUSPENSION AS A WHEEL ALIGNMENT IS NOT NECESSARY.