37 of the
394 complaints filed about the Infiniti QX50
are about the other systems —
9% of everything owners reported.
The worst model year for it is 2019.
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.
NHTSA complaint #11739104 — an unverified report by a vehicle owner.
The vehicle has experienced ongoing electrical and safety-system related malfunctions shortly after being purchased as an INFINITI Certified Pre-Owned vehicle in April 2025. The issues initially included flickering interior and exterior lights, intermittent door lock malfunctions, and other electrical irregularities. In June 2025, I received notification through the INFINITI app regarding a major engine recall involving engine bearing failure concerns affecting my vehicle. I brought the vehicle to Harte INFINITI for inspection regarding the recall and my electrical concerns. During that visit, dealership personnel acknowledged there were multiple vehicles experiencing similar engine bearing issues related to the recall. Despite my concerns, I was told the vehicle was “safe to drive” because no diagnostic codes were present at that time. The problems continued to worsen over time. On February 26, 2026, during a routine oil change shortly after expiration of the basic warranty, I was presented with approximately $2,600 in recommended repairs despite previously being told there were no issues with the vehicle. Most recently, the vehicle developed Forward Emergency Braking (FEB) malfunction warnings and Lane Assist malfunction warnings involving critical driver assistance and collision-avoidance systems. These warnings raised serious concerns regarding the safe operation of the vehicle because they involve systems designed to help prevent collisions and maintain vehicle control. I was concerned that these systems could fail unexpectedly while driving, potentially increasing the risk of an accident or injury to myself, passengers, or others on the roadway. The vehicle was returned to the dealership for inspection, where I was presented with an additional repair estimate exceeding $4,600 along with diagnostic charges. Despite the active safety-system malfunction warnings, I was again advised that the vehicle was safe to drive.
NHTSA complaint #11738589 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11730025 — an unverified report by a vehicle owner.
On October 29, 2025, my Infiniti QX50 was repaired at Naples Infiniti after the engine under shield detached while driving, ripping off the passenger-side wheel well liner. The technician stated the failure was likely caused by missing bolts from a prior oil change approximately two weeks earlier. Based on that representation, I authorized the repair. That explanation later proved to be incorrect. On January 18, 2026, the entire under shield detached again while driving, once more tearing off the wheel well trim and additional underbody plastic components. This second incident also caused a visible gouge in a new tire. This was the second identical failure, creating a significant and ongoing safety hazard. Subsequent research shows a well-documented pattern affecting 2019–2021 Infiniti QX50 vehicles, where underbody components detach while driving. This strongly suggests a design or materials defect, not isolated maintenance error. On January 19, 2026, while driving to Naples Infiniti to drop the vehicle off following the second failure, additional plastic components detached from the vehicle, nearly causing an accident. Photographs are available documenting the damage and debris. I immediately reported this to Infiniti, and they deny any wrongdoing or vehicle design defects.
NHTSA complaint #11717171 — an unverified report by a vehicle owner.
Car experienced sudden braking on roadway upon entering a covered bridge. Red screen on dash and beeping. Foot on gas but not moving forward - Almost causing a crash and immediate risk of injury or death. Bringing vehicle into Infiniti dealer for service to see if there are diagnostics they can run to determine the cause of the event.
NHTSA complaint #11711663 — an unverified report by a vehicle owner.
While driving on the highway and using the hands free feature on iPhone, I said, Hey Siri, and somehow it made the automatic braking on my 2019 Infiniti Qx50 engage unexpectedly. This is not the first time it has engaged unexpectedly and there are also instances when the sensors engage without anything nearby.
NHTSA complaint #11707903 — an unverified report by a vehicle owner.
Car recently had an important safety recall that was suspended, my car is a 2019 QX 50 Infiniti Luxe, that recently shut down and had to be towed, infiniti dealership diagnosed the car and says I have all low compressions and that I need an engine, these symptoms were quoted to my service dealership prior that the car hesitate to take off, low pick up when I accelerate, stops out of nowhere at intersections, I was told car performs as it was designed to perform even tho I explained it has like a growling sound, now here I am with an engine failed vehicle that they are trying to charge me 13,000 for repairs, I am still paying on this car and have a balance of 14,000+ owed, the dealership is saying they performed a recall diagnosis and that no debri was found in oil pan, any mechanic should know just because debri wasn’t found in the oil pan does not mean the car is not eligible for recall repairs, especially if the diagnostic test was done too soon, the car is definitely part of the recall but they will not honor that, I only had the car just 3 years as of September 2025, the car itself is only 6 years old, this engine failure is definitely part of the recall and I should not be responsible for this repair, this is a safety hazard for me and Infiniti should be held accountable for this faulty engine.
NHTSA complaint #11704178 — an unverified report by a vehicle owner.
2019 Infiniti QX50 Recall Campaign ID: R25B2 (Safety Recall 2025) Summary of Issue: I received a safety recall notice stating that my vehicle may have an engine manufacturing defect that could cause severe damage or complete engine failure. This poses a significant safety risk. Details: Contacted Infiniti Consumer Affairs on August 28, 2025 (Case #55702324) and my local dealer. Dealer confirmed recall is active but remedy is not available; they refused inspection even if I offered to pay. Consumer Affairs indicated proactive assessment may incur charges unless defect is confirmed, which I find unreasonable given the severity of the issue. No timeline provided for remedy or inspection. No alternative transportation offered. Safety Concern: Driving the vehicle under these conditions could lead to sudden engine failure, increasing risk of accidents and injury. Requested Action: Confirm recall status and remedy timeline. Require manufacturer to provide inspection or alternative transportation until repairs are available.
NHTSA complaint #11699022 — an unverified report by a vehicle owner.
Infiniti has acknowledged that certain vehicles equipped with this engine may experience bearing failures caused by a manufacturing defect affecting the main, A-, C-, and L-link bearings. These defects can result in engine damage or complete engine failure, as outlined in Infiniti’s recall notice. In September 2025, I took my vehicle to an authorized Infiniti service center after receiving notice of the recall. At that time, I was informed that no repair remedy was yet available. I continued operating the vehicle as advised, and no warning lights or performance issues were present. However, on October 16, 2025, the Service Engine Light illuminated unexpectedly. I immediately brought the vehicle to the nearest certified repair facility the following day (October 17, 2025). Diagnostic testing determined that the engine had suffered internal bearing failure, consistent with the known recall condition. The vehicle required a complete engine replacement, which I had to proceed with at significant personal expense, covering both parts and labor. At no time prior to this incident did my vehicle display any warning indicators or abnormal performance. The sudden nature of the engine failure created a serious safety concern and considerable financial hardship. I am therefore formally requesting reimbursement or assistance with the full cost of the engine replacement and associated labor. I have attached supporting documentation, including repair invoices, diagnostic reports, and proof of payment, for your review. Given that the failure directly relates to the known defect identified in the recall, I believe reimbursement is both appropriate and warranted.
NHTSA complaint #11698665 — an unverified report by a vehicle owner.
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
NHTSA complaint #11689012 — an unverified report by a vehicle owner.
The plastic clips on the panoramic sunroof holding the sunshade cover snapped while I was driving causing the shade to rapidly roll up. Note that there was no misuse of the sunroof shade and I wasn’t even using it when this Happened. This seems like a dangerous liability in case it were to hit the driver while on the road or distract them. After looking at my extended warranty I found my dealer does not cover the repair and I have to pay upward of 2k just for the plastic clips. There are no TBS for my vehicles vin on the sunroof rails breaking but there are for rattling and it even mentions issues with the clips but no problem to fix it. There are no lights to indicate this feature is broken on the dash as well.
NHTSA complaint #11687495 — an unverified report by a vehicle owner.
Me han enviado un recall el cual me enviaron en fecha 22 de octubre del presente año y lo he recibido hace unos dos días. He ido a infinito service y me informaron que el recall había sido retirado. Mi carro ha estado presentando problemas con el motor y todo lo que describe en el recall ya lo está presentando. Cómo es posible que el recall se haya retira? El problema existe, necesito que me habiliten esto, mi carro puede presentar problemas más graves y ustedes se tendrán que hacer responsables. Ya ha tenido pérdida de potencias y los demás síntomas
NHTSA complaint #11685162 — an unverified report by a vehicle owner.
Component/system that failed: Panoramic sunroof glass on a 2023 Infiniti QX50. Date of Incident: July 21, 2025 at approximately 8am. Incident description: While my daughter was driving on the interstate at normal speed, the panoramic sunroof suddenly and spontaneously shattered. There was no impact, no visible object, and no warning. The explosion of glass was loud and violent. Safety risk: Thankfully, the sunroof shade was closed at the time of the incident. Had it been open, glass would have rained down inside the cabin, potentially causing serious or even fatal injuries. This was a terrifying failure with high risk to life and safety, particularly at highway speeds. Immediately after the incident I called Infiniti of Memphis where we purchased the vehicle brand new, and it is currently under warranty. I was notified that since there isn’t a current recall anything glass related is not included under warranty and I would need to file a claim under my insurance. We were forced to file a claim through our insurance provider to repair the damage — despite no fault on our part. Warning signs or prior symptoms: There were no warning lights, no abnormal sounds, and no signs of weakness or cracking. The glass failed without warning. Cause: UNKNOWN — but based on public reports, thousands of similar incidents have occurred in other Infiniti and Nissan models. This appears to be part of a known manufacturer defect currently involved in active class-action litigation (Johnson v. Nissan North America) regarding spontaneous sunroof explosions.
NHTSA complaint #11675941 — an unverified report by a vehicle owner.
Vehicle purchased from dealer 3/5/25 (brand new). Noticed struggle to start/shaking vehicle/weak power, within first week. Malfunction indicator light came on 4/15/25, brought into dealership for testing. Data showed fail/pass misfires upwards of 30 times. Diagnosed as fuel injector pump misfire. Part was replaced and picked up the vehicle 5/8/25. Vehicle misfired again on 5/9/25. Brought into dealership for further testing; service advisor stated that the misfire was "likely due to air in the new pump." Noticeable misfire again on 5/27/25, no malfunction indicator light came on, notified service advisor. 5/30/25 vehicle misfired significantly, malfunction indicator light came on again, brought in for service. 6/11/25 service advisor stated they are doing a "pin fit repair" to refit all the connector pins for the ignition coils. I don't feel safe in this car. It's brand new, and should perform as such. When it misfires, I can barely drive past 30mph. It shakes violently, and I don't know whether it is safe to be driving it. Dealership doesn't seem to understand what the actual problem is.
NHTSA complaint #11666543 — an unverified report by a vehicle owner.
Engine light is on - transmission output speed sensor. Vehicle was inspect by Pep Boys # 208 My vehicle don't want to pick up speed. I don't know what caused the problem.
NHTSA complaint #11620722 — an unverified report by a vehicle owner.
The car completely stalled while going uphill. It restarted a few minutes after. I received 3 email notifications from Infiniti stating that my engine may have an emission control system malfunction. I took the car into the Infiniti dealership. They stated that the vehicle test was driven for 24 miles. Could not duplicate customers concern and is not stalling when going up hills. Scanned for codes and found multiple past codes. Drove until moniters were set. Rechecked for codes and no codes were found. No further action required, working as factory intent and design. Called Infiniti consumer affairs who stated that they could do nothing else too detect what is wrong with the car.
NHTSA complaint #11572396 — an unverified report by a vehicle owner.
Last year I had to have the BCM replaced on my infiniti. Here I am a year later and I'm being told that I have to replace the BCM again. The dealer told me that there's water that is literally streaming directly past the module due to the drainage coming from the sunroof. I have no idea why that I happening bring I haven't experienced any leakage from the sunroof. I definitely shouldn't have to replace a BCM 1 year after installation of a new module. Please take look into this issue. I just don't think it's fair that I have to replace another BCM due to the drainage ststem/path on such a luxurious car.
NHTSA complaint #11559402 — an unverified report by a vehicle owner.
The Drive Unit Power Back Door. Part Number: 90560-5NA0B has failed and causes a severe risk of injury when trying to access the cargo area. The lift gate rises up and abruptly descends causing a hazardous situation to the consumer. This is a premature failure for a 4 year old car and has a very high cost to repair. The lift gate is very heavy and could cause severe injury if a person is struck by it while it is rapidly moving in a downward direction. It will not stay up and the “safety” feature is not functional.
NHTSA complaint #11540612 — an unverified report by a vehicle owner.