Infiniti QX50 Complaints

283 consumer complaints on file.

#11733234April 23, 2026
ELECTRICAL SYSTEM, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11730280April 9, 2026
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11730025April 8, 2026
UNKNOWN OR OTHER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729566April 6, 2026
ENGINE, POWER TRAIN
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729452April 6, 2026
SEATS
I was driving from [XXX] to [XXX] on Saturday, March 28th. I started smelling a strong, chemical odor and my eyes started burning and watering, so I pulled off of the highway and found that my back passenger side seat heater had started burning. There was a pillow and a down jacket on the seat that also burned. It really scared me because I was in the middle of nowhere and only had a cup with ice, but luckily there was a mud puddle that I was able to get some water from and pour on the back seat. My granddaughter was riding in that seat in her booster seat the night before. I am thankful she or no one else was in the seat when it burned. There were no warning lights or messages appear - I just smelled the burning. I had to continue to drive the car with the windows down to my son's home in West Virginia, and on Monday, March 30th, we took the car and dropped it off at the nearest Infiniti dealership (Cochran Infiniti in Monroeville, PA). We spoke with the service manager and many employees came to inspect and they all said they had never seen anything like this before. They confirmed there had been no recalls on the vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11728318March 31, 2026
ENGINE
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)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11728091March 30, 2026
ENGINE, ELECTRICAL SYSTEM
On March 26, 2026 my 2019 Infiniti QX50 (VIN: [XXX] ) experienced complete loss of motive power while exiting the freeway. My blind mother and [XXX] autistic son were both passengers creating a serious safety emergency for two disabled individuals. On March 28, 2026 Les Schwab Tires (Store [XXX] ) professionally documented metal shavings in the oil pan on official invoice stating ‘SHAVING IN OIL PAN’ with my VIN recorded. I brought the vehicle to Infiniti Roseville [XXX] ). Their own official inspection report R/O 101930 dated March 28, 2026 confirms: ‘REMOVED OIL PAN AND INSPECTED FOR BEARING DEBRIS. FOUND SMALL AMOUNT OF METAL SILVER COLORED.’ The report also documents my reported intermittent power loss and references two photos of the debris taken during inspection. Despite finding documented metal debris consistent with recall R25B2 bearing failure, Infiniti Roseville is denying engine replacement claiming silver colored debris does not qualify. Nissan’s published recall criteria makes no such color distinction — it states metal debris qualifies for engine repair or replacement at no charge. Warning symptoms began December 5, 2025 including headlight flickering, high pitched engine whistling, VDC warning light January 25, 2026 — all documented with timestamped photos and video. The vehicle is currently at Infiniti Roseville. I am requesting federal intervention as the dealer is not complying with recall R25B2 repair criteria and is applying internal standards that contradict Nissan’s published recall documentation INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11726912March 25, 2026
ENGINE
My vehicle was inspected at an authorized Infiniti dealership under an active recall. During that inspection, metal debris and loose bolts were found in the oil pan, indicating internal engine damage consistent with the recall condition. Despite this, Infiniti declined to repair or replace the engine. the engine failed completely while I was driving at highway speed, causing sudden loss of power and creating a serious safety hazard. I was left stranded in active traffic conditions, placing myself and others at risk. This incident raises significant safety concerns, including: Failure of the manufacturer to properly remedy a known recall condition, Continued operation of a vehicle with a known defect, Risk of sudden engine failure during normal driving conditions. Additionally, I did not receive timely notification of the recall. I should have been notified months earlier but only received notice on February 10, 2026. I have documentation from the dealership confirming the presence of metal debris and bolts in the engine, as well as photographic evidence of the damage. I am concerned that other vehicles with this defect may not be properly repaired, potentially leading to similar dangerous failures. Infiniti’s refusal to address a clearly defective engine identified during a recall inspection represents a serious safety issue that warrants investigation. I respectfully request that NHTSA review this matter and determine whether Infiniti is complying with its obligations to properly remedy recall-related defects.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11725457March 19, 2026
ENGINE
The contact owns a 2019 Infiniti QX50. The contact stated there was a grinding sound coming from the engine while driving at various speeds and while accelerating from a stop. There were no warning lights illuminated. The vehicle was taken to a dealer to be diagnosed, and it was determined that the engine mounts were fractured and needed to be replaced. The vehicle was repaired. The failure persisted, and the vehicle was returned to the dealer. The driver stated the sound was normal and was coming from the turbocharger. No additional repairs were performed. The manufacturer was not made aware of the failure. The failure mileage was 59,021.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11724522March 16, 2026
EXTERIOR LIGHTING, ELECTRICAL SYSTEM, VEHICLE SPEED CONTROL
The front passenger door latch seems to go off and say that the door is open and the alarm goes off in the car so in the middle of the night, the alarm will start ringing and then when driving in the car, it constantly beeps and says the door is open when it’s closed. Sometimes you can’t open the door.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11723850March 12, 2026
ENGINE AND ENGINE COOLING
The contact owns a 2019 Infiniti QX50. The contact received notification of NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact later received an extended warranty notification from the manufacturer stating that the extended warranty on the engine for 10 years/120,000 miles. However, the contact received a second recall notification to contact the dealer for the recall repair. The contact stated that while driving 70 MPH on an Interstate, the vehicle suddenly decelerated to 35 MPH, almost causing a crash. There was no warning light illuminated. The contact was able to pull over to the side of the road, and the contact turned off the vehicle. The vehicle was restarted after 15 minutes and driven to the residence. The dealer was contacted and confirmed that the recall had resumed, and a recall repair appointment was scheduled. The vehicle was towed to the dealer, where the contact was verbally informed that no metal shavings were found in the oil pan upon inspection, and the engine was not replaced; however, the recall completion report that the dealer had provided to the contact confirmed that there were metal shavings found in the oil. The dealer was contacted, but informed the contact that the metal shavings found in the oil were not bearing materials. The vehicle was not repaired and was parked at the residence. The manufacturer was notified of the failure but denied assistance. The failure mileage was approximately 114,770.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722217March 5, 2026
ENGINE AND ENGINE COOLING
The contact owns a 2019 Infiniti QX50. While driving at an undisclosed speed, there was an abnormal sound coming from the engine compartment. There was no warning light illuminated. The vehicle was taken to the dealer; however, the contact was informed that parts were not yet available. The contact was advised to call back to schedule an appointment for a later date. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The contact received notification of NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling). The manufacturer was not made aware of the failure. The failure mileage was approximately 69,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11720215February 24, 2026
ENGINE, POWER TRAIN
Vehicle: 2019 Infiniti QX50 Mileage at engine replacement: 31,830 miles Date of engine replacement: August 2023 (recall-related repair) The engine in my 2019 Infiniti QX50 was replaced under recall at 31,830 miles in August 2023. Approximately 18,633 miles later, the vehicle began experiencing transmission malfunction symptoms consistent with CVT failure. An independent mechanic diagnosed the CVT transmission as needing replacement. I then took the vehicle to an Infiniti dealership, and they confirmed transmission issues but declined warranty coverage because the powertrain warranty expired February 28, 2025. The transmission is directly integrated with the engine in this vehicle. Following the engine replacement, the transmission began exhibiting unsafe operating behavior, including hesitation, loss of acceleration response, and drivability instability. There are widespread consumer complaints and litigation involving this engine and CVT transmission combination in the 2019 Infiniti QX50. Infiniti extended coverage for the engine but has not extended coverage for the transmission despite known reliability concerns. I am now afraid to operate the vehicle due to concern of sudden transmission failure while driving, which could result in loss of power in traffic and create a safety hazard. I am requesting that NHTSA investigate this recurring pattern of CVT transmission failure following engine defects in the 2019 Infiniti QX50.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719273February 20, 2026
ENGINE
Dear NHTSA Representative, I am filing a complaint against Infiniti regarding refusal to perform a recall-related engine replacement on my vehicle. Vehicle Information: • Year: 2021 • VIN: [XXX] I brought my vehicle to Grubbs INFINITI in Grapevine, TX for recall service in August 2026 and again on February 11, 2026. The dealership refused to perform the recall-related engine replacement. The reason provided was that oil change maintenance had not been completed on time by the previous owner before I purchased the vehicle. However, since I have owned the vehicle, all oil change maintenance has been completed on time and properly maintained. The engine has not failed, but it remains subject to the recall and the associated safety risk. I believe denying recall service based on maintenance history from a prior owner is improper and leaves me operating a vehicle that is subject to an unresolved safety recall. I respectfully request that this matter be investigated and that Infiniti be required to comply with its recall obligations and perform the required repair at no cost. Please let me know if additional documentation is needed. I can provide maintenance records and service documentation. Sincerely, [XXX] [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719271February 20, 2026
ENGINE
1. The engine is the system that is malfunctioning. There was a recall on my vehicle. I was told to bring the vehicle in for the metal found in oil. Infiniti denied to replace my engine which was stated during the recall that the engine would be replaced. My vehicle was returned to me without receiving an engine per the recall. 2. My safety is at risk because the engine can fail which can cause me to lose controls of the vehicle and not be able to prevent an accident. That also places others at risk. My engine could also blow up at any given time. 3.The problem has been confirmed by the Infiniti dealership (service department) during both inspections. 4.The vehicle has been inspected by the manufacturer. Infiniti had denied to expect responsibility per the recall and denied to replace my engine per their recall. 5.There had not been any warnings, messages or symptoms of the problem prior to getting notification of the recall or getting my vehicle inspected per the recall. This is the second complaint that I am filing against Infiniti per the recall that was called on my vehicle. My vehicle has not been serviced correctly and my engine has not been replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719065February 19, 2026
POWER TRAIN, ENGINE
I am a [XXX] woman who purchased my first vehicle on December 6, 2024, with 43,000 miles. I have driven fewer than 20,000 miles since purchase, and the vehicle currently has approximately 62,000 miles. Until January 19, 2026, I experienced no issues. I have properly maintained the vehicle and followed all recommended service guidelines. I completed three oil changes during my ownership, averaging approximately every 8,500 miles. Two oil changes were performed by a licensed mechanic, and the most recent oil change and inspection were completed on November 29, 2025 at Legend Infiniti. I have receipts for all services. On January 19, 2026, while driving approximately 65 mph on a four-lane highway in Long Island, the vehicle suddenly went into limp mode and dropped to about 10 mph without warning. This created an extremely dangerous situation with a serious risk of collision. I first brought the vehicle to my mechanic, who advised me to take it to an authorized Infiniti dealership due to an engine bearing recall associated with my VIN. I brought it to the same Infiniti dealership that had serviced it two months earlier. After diagnosis, the dealership stated there was engine sludge and that I needed a new engine. They denied any connection to the recall and attributed the issue to poor maintenance. However, two months prior they completed an oil change and inspection with no documentation of sludge, engine concerns, or maintenance deficiencies. I was not informed of any recall at that time. My warranty claim was denied on the basis that sludge is not covered and that maintenance performed outside Infiniti could not be validated, despite providing receipts from licensed facilities. I am also being told there are record-access issues because the vehicle was originally sold in Canada. Given the sudden loss of power at highway speed and the known recall related to engine components, I believe this presents a significant safety concern and warrants investigation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFO
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717437February 11, 2026
ENGINE
My 2021 Infiniti QX50 is subject to Recall 25V437000 for engine bearing defects that can cause engine failure, loss of power, and fire. During the recall inspection, Cerritos Infiniti found metal debris. They first diagnosed this debris as being in the engine oil and recommended immediate engine replacement. Days later, they reversed this diagnosis, claiming the debris was only on the removed oil pan from "technician scraping" and that the engine is safe. Infiniti Corporate reviewed the dealer's evidence, denied the warranty claim for an engine replacement, and refuses to provide me with any technical documentation—photographs, video, or analysis—that would verify which diagnosis is correct. They have refused my request for an independent inspection by a Field Technical Representative at a different dealership. The dealer has now threatened $60/day storage fees to coerce me into accepting the vehicle back without any verifiable proof of engine safety. I am being forced to choose between paying punitive fees or driving an unverified vehicle with known, documented risks of catastrophic failure and fire. I am filing this complaint not to seek an engine replacement, but to request that NHTSA investigate whether Cerritos Infiniti and Infiniti Corporate have violated federal safety recall requirements by: 1. Failing to provide owners with complete and accurate information about the results of recall inspections; 2. Destroying evidence (the original contaminated oil/filter) before an independent review could occur; 3. Coercing owners into accepting potentially unsafe vehicles through punitive storage fees; 4. Failing to perform the required recall remedy—which, if "specific debris" is found, requires engine replacement—and instead substituting an unverified, undocumented "second oil change" as an informal remedy.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717171February 11, 2026
UNKNOWN OR OTHER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717015February 10, 2026
ENGINE
2019 Infiniti QX50 was purchased new 9/3/2018 Engine safety problems started 9/3/22 and it was fixed in a two days. Total engine failure diagnosed by Infiniti Cerritos on March 31, 2025. The car was at 103,900 miles at this time. At this time the warranty coverage was for 72,000 miles and not extended to 120,000 miles yet. I paid for the replacement of the engine on 9/5/2025. I later got a recall notice and it said that the warranty engine coverage had been extended to 120,000 miles and that I would get reimbursed for repairs. I never got reimbursed after I submitted a reimbursement claim form through Infiniti assist. I keep getting the run around at Infiniti Consumer Affairs. I submitted a Lemon Law claim and the arbitrator is showing a lot of bias and I keep getting the run around as well. No arbitration meeting has been scheduled. I now got a 2nd recall notice on January 29,2026 stating that the engine oil pan needs to be checked for metal debris and it’s possible that engine will need to be replaced if metal found. I scheduled an appointment on February 10th, 2026. At this appointment I also notified them that I still hear a noise in the engine. Infiniti Cerritos refused to do the recall. They also want to charge for inspection diagnosis of the engine noise when it should be covered under the warranty and recall notice. It says free of charge on recall notice. This car is obviously a lemon because if the engine gets replaced it’s bound and will continue to have the same type of safety issues.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11715926February 5, 2026
ENGINE AND ENGINE COOLING
The contact owns a 2020 Infiniti QX50. The contact stated that the vehicle was repaired under NHTSA Campaign: 25V437000 (Engine and Engine Cooling) however, other failures occurred. The contact stated that after the vehicle was dropped off by the local dealer, the front passenger’s side tire deflated. The vehicle was taken to a local dealer, where it was repaired. The contact stated that the underbody shield of the engine guard had detached, allowing road debris to enter the hood. In addition, the contact stated that while attempting to start the vehicle, the vehicle failed to start as intended, with a rattling sound coming from the engine. The vehicle was towed to a local dealer, where the vehicle was lost and misplaced. The manufacturer was made aware of the failure. The failure mileage was approximately 51,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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