2020 Infiniti QX50 engine problems

Updated from NHTSA data · How we count

22 owners have reported engine problems with the 2020 Infiniti QX50, 67% of all complaints about this model year. The typical problem appeared around 51,000 mi.

Engine complaints
22
Crashes
0
Fires
0
Injuries
0
Related recalls
1
Median mileage
51,000 mi

Specific components reported

Engine covers: stalling, loss of power, oil consumption, overheating.

ComponentComplaints
Engine18
Engine and engine cooling4

Engine complaints across Infiniti QX50 years

420161201784201922202025202132022120231202412025
Engine complaints by model year. The 2020 is highlighted.

Mileage when the problem appeared

1Under 10k10k–30k130k–60k60k–100k1100k–150k150k+
Complaints that list mileage, grouped by odometer reading.

Related recalls

  • Recall 25V437000Jun 27, 2025443,899 vehicles
    ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

    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.

    Remedy: 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.

What owners say

  1. Filed Sep 29, 2026NVEngine
    We received the federal recall information and took the vehicle to the nearest Infiniti dealer (96 miles away) on 9/2/26. Diagnostics were performed and were told that the car "passed" the inspection. Two days later, the engine demonstrated complete failure. We had to have the vehicle towed to a Nissan dealer in our town (no Infiniti here) on 9/11/26. According to this report, " Based on the testing and findings, this no start condition relates engine mechanical issue,…
    NHTSA complaint #11767656 · source
  2. Filed Sep 2, 2026108,000 miTXEngine
    The contact owns a 2020 Infiniti QX50. The contact stated that while driving 75 MPH, the check engine warning light illuminated, and the RPM became elevated. The vehicle was taken to the dealer, where an unknown recall repair was performed. The contact stated that the engine was replaced. The vehicle was repaired, but the failure reoccurred. The vehicle was taken back to the dealer where the contact was informed that the failure was associated with the computer system which…
    NHTSA complaint #11761616 · source
  3. Filed Sep 2, 2026GAEngine
    Engine lost all power and car seemed to be locked in low gear while attempting to drive down the road. Took the car to Infiniti dealership which said there was a recall and they inspected the vehicle. Mechanic inspected the vehicle and said it fit all requirements to be replaced by engine recall. Infiniti is refusing to replace engine stating it does not meet recall requirements.
    NHTSA complaint #11761492 · source
  4. Filed Feb 19, 2026NYEngineTransmission & Drivetrain
    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…
    NHTSA complaint #11719065 · source
  5. Filed Feb 5, 202651,000 miMITowedEngine
    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…
    NHTSA complaint #11715926 · source
  6. Filed Feb 4, 2026WAEngine
    Recieve 5 recall notice but dealer will not look into the recall. Dealer is infiniti of fife in tacoma washington. My concern is that the vehicle breakdown and they said it's normal wear and tear how can i prove that.
    NHTSA complaint #11715564 · source
  7. Filed Feb 4, 2026WAEngine
    The contact owns a 2020 Infiniti QX50. The contact received notification of NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling). The local dealer was contacted to schedule an appointment, and it was confirmed that parts were not yet available. The vehicle was not diagnosed or repaired. The manufacturer was called, but the call was disconnected. The contact had not experienced a failure.
    NHTSA complaint #11715561 · source
  8. Filed Feb 2, 2026PREngine
    VEHICLE : IMNFINITI QX50 YEAR: 2020 LOCATION : PUERTO RICO My Infiniti QX50 has an active engine recall by VIN In 2023 the Infiniti dealer in San Juan PR documented oil sludge in the engine and performed and engine flush and internal treatment . The vehicle was returned to service and was not declare unsafe In 2024 , the same Infiniti dealer performed maintenance and again returned the vehicle to service without restriction The vehicle has now develop internal engine damage…
    NHTSA complaint #11714907 · source
  9. Filed Jan 19, 2026CAEngine
    Received safety recall August 22, 2025. Still no remedy or communication. Recall data was refreshed January 19, 2026 reports unrepaired recall with no remedy plan. Is this a continuing safety risk?
    NHTSA complaint #11711895 · source
  10. Filed Jan 12, 2026WAEngine
    The contact owns a 2020 Infiniti QX50. The contact received notification of NHTSA Campaign Number: 25V437000 ( Engine and Engine Cooling). The contact called the local dealer and was advised that parts were not yet available for the recall repair. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had been changing the oil every 3,000 miles as mitigation for the remedy not being available. The manufacturer was…
    NHTSA complaint #11710323 · source
  11. Filed Jan 11, 2026WIEngine
    I received notification from Infiniti there was a recall for engines failing in the model I drive. I promptly took my vehicle to the dealership, and they confirmed there is metal shavings engine and Infiniti refused to replace the engine. An independent review was done by Infiniti and even though the dealership agrees engine needs replaced Infiniti refused. I am attaching invoice and pictures attached of oil pan confirming metal shavings are present.
    NHTSA complaint #11710207 · source
  12. Filed Nov 25, 2025CAEngine
    About 3 months ago I took my car to be inspected for recall Infinity Dealership stated the drained oil and dropped oil pan and inspected for debris on bottom on oil pan however manufacturer has stated engine beating failure happens progressively not all of a sudden I believe the system malfunctioning light I’ve been seeing on my dash is a direct result of something that was missed during recall inspection.
    NHTSA complaint #11701610 · source

Other 2020 Infiniti QX50 problem areas

  • Driver Assistance & Safety Tech (8)
  • Electrical System (4)
  • Transmission & Drivetrain (4)
  • Other / Unknown (3)
  • Brakes (2)
  • Acceleration & Cruise Control (1)
  • Fuel, Hybrid & EV Propulsion (1)

Back to all 2020 Infiniti QX50 problems →

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology