2021 Infiniti Qx50 problems, complaints & recalls
Most-reported problem areas: Engine (13) · Engine And Engine Cooling (7) · Forward Collision Avoidance: Automatic Emergency Braking (4)
🧭 Reliability snapshot
Compared against other Infiniti Qx50 model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (2)
Engine And Engine Cooling:engine:hard Parts Internal/Mechanical 2025-06-27 · campaign 25V437000 · 443,899 vehicles
Defect: Nissan North America, Inc. (Nissan) is recalling certain 2021-2024 Rogue, 2019-2020 Altima, 2019-2022 Infiniti QX50, and 2022 Infiniti QX55 vehicles equipped with 3-cylinder 1.5L or 4-cylinder 2.0L variable compression turbo (VC-Turbo) engines. The engine bearings may have manufacturing defects that can lead to engine failure.
Risk: Engine failure increases the risk of a crash. A bearing failure may cause a breach in the engine block, allowing hot oil to be discharged, increasing the risk of an engine fire.
Fix: Dealers will reprogram the engine control module (ECM) software, free of charge. Owner letters were mailed April 8, 2026. Owners may contact Nissan's customer service at 800-647-7261 or Infiniti's customer service at 1-800-662-6200. Nissan's numbers for this recall are R25A8/A9 and R25B1/B2.
Suspension:rear:axle:spindle 2021-05-27 · campaign 21V402000 · 14,276 vehicles
Defect: Nissan North America, Inc. (Nissan) is recalling certain 2020 Nissan Murano, INFINITI QX60, 2021 Nissan GT-R, INFINITI QX50, and Q50 vehicles. The front steering knuckle or rear axle housing may have insufficient strength due to improper heat-treatment.
Risk: The steering knuckle or rear axle could deform upon impact, such as from hitting a curb, resulting in a loss of steering control, or possible wheel separation. Both of these conditions can increase the risk of a crash.
Fix: Dealers will inspect and replace the front steering knuckle and rear axle housing, as necessary, free of charge. Owner notification letters were mailed July 26, 2021. Nissan owners may contact customer service at 1-800-867-7669. INFINITI owners may contact customer service at 1-800-662-6200.
Service bulletins (127)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Electrical System 2026-08-26 · ITB22-025D · Service Bulletin/Repair Instructions
roaring noise from the engine cooling fan assembly and the a/c is not cooling if you confirm a roaring noise from the engine cooling fan assembly (engine fan on high not cycling) is present, and the air conditioning (a/c) is not cooling. action 1. check the hardware part number for the ipdm e/r. 2.
Structure:body 2026-04-13 · ITB09-063C · Service Bulletin/Repair Instructions
certification label and vin plate replacement service information because of collision damage or other vehicle repair, a replacement “certification label” or “vin plate/label” may be needed. hint: certification label = fmvss (federal motor vehicle safety standards) label. these items may be availabl
Structure:body 2025-10-06 · ITB21-021A · Service Bulletin/Repair Instructions
if you confirm the client states that either the rear hatch is inoperative, or the rear hatch closes after opening only a small amount, and dtc b2426-23 for “spindle sensor lh” and/or dtc b2427-23 for “spindle sensor rh” is stored, and/or there is a growling type noise from the rear hatch area when
Forward Collision Avoidance: Automatic Emergency Braking 2025-02-20 · ITB23-023A · Service Bulletin/Repair Instructions
aeb warning light is on with warning messages displayed on combination meter applied vehicles: 2015-2024 q50 (v37) 2015-2018 q50 hybrid (hv37) 2017-2022 q60 (cv37) 2015-2019 q70 (y51) 2015-2018 q70 hybrid (hy51) 2019-2024 qx50 (j55) 2022-2024 qx55 (fj55) 2015-2021 qx60 (l50) 2022-2024 qx60 (l51) 201
Air Bags 2024-09-19 · ITB19-024D · Service Bulletin/Repair Instructions
dtc b00a0-00 storeif you confirm dtc b00a0-00 (occupant detection sensor unit) is stored, and ocs zero point reset cannot be performed, (continued on the next page)d
Electrical System 2024-08-15 · ITB22-020B · Service Bulletin/Repair Instructions
telematics control unit reset after automatic collision notification service information the telematics control unit (tcu) has the ability to send an automatic collision notification when the vehicle is involved in an accident. once an automatic collision notification is performed, the function beco
Showing the 6 most recent of 127 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-10-06 · Forward Collision Avoidance: Automatic Emergency Braking“my wife was driving her fancy little car at night, and when she reached the halfway point (in the middle of an intersection), the adas apparently detected something that wasn't there and the car slammed on its brakes, putting her and other drivers at risk of a collision. she said there were all kinds of lights on the dash that lit up while the ca…”
2026-08-31 · Engine“my 2021 infiniti qx50 has suffered a catastrophic internal engine failure. this vehicle is explicitly covered under active federal safety recall nhtsa campaign 25v437000 (infiniti campaign r25a8/a9 / r25b1/b2) for defective, failing main and link bearings. the infiniti dealership is actively refusing to honor the mandated federal recall remedy. t…”
2026-06-29 · Power Train · 💥 crash“on june 16, 2026, a 2021 infiniti qx50 experienced a safety-related malfunction while being driven at approximately 15–20 mph. the vehicle suddenly jerked, lost power response, displayed multiple warning lights, showed a “system fault – see owner’s manual” message, and became unresponsive/difficult to control. the engine remained on, but the vehicl…”
2026-06-24 · Engine And Engine Cooling · 122,000 mi“the contact owns a 2021 infiniti qx50. the contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from under the hood. no warning light was illuminated. the vehicle was taken to a local dealer, where it was diagnosed and metal shavings were found in the oil pan. upon further investigation, the contact associat…”
2026-06-23 · Engine“there is an active and unremedied safety recall on my 2021 infiniti qx50 (nhtsa recall #25v-437) for a critical engine defect that can result in complete engine failure and risk of fire. the recall was issued on june 26, 2025. i am an active-duty military member stationed in germany. i shipped my vehicle in january 2026, before a remedy was availa…”
2026-05-27 · Engine“open recall on engine (nhtsa #25-v437) engine has been replaced and recall repaired. …”
2026-05-18 · Unknown Or Other“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 notifi…”
2026-05-15 · Lane Departure: Warning“i purchased my vehicle 4.25. soon after i noticed lights flickering. i was notified shortly after my car was part of the major recall. i brought it in, they said no engine bearings, car is ok, they did not acknowledge the lights because there was no code. i was due for an oil change a few months later and the dealer gave me a 2600.00 estimate for…”
2026-05-12 · Structure:body“the front driver-side door on my 2021 infiniti qx50 appears to have a faulty latch, hinge, or door ajar sensor issue. the vehicle repeatedly displays a “door open/door ajar” warning even when the door is fully shut and latched. the warning can sometimes be triggered or worsened by leaning on the door or applying light pressure, which suggests movem…”
2026-05-04 · Engine And Engine Cooling · 95,193 mi“the contact owns a 2021 infiniti qx50. the contact stated while operating the vehicle at an undisclosed speed, she stated she heard a loud sound coming from the motor, she pulled over and attempt to restarted the vehicle but it would not turn on. the vehicle was towed where it was diagnosed that the vehicle engine oil had metal shavings in the oil,…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.