2019 Infiniti QX50 Engine Problems
- Complaints
- 57about this part
- Share
- 39%of 145 total for the year
- Median mileage
- 58,883miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 57 complaints about the engine of the 2019 Infiniti QX50, 39% of the 145 complaints for this model year. Where a mileage was given, the median is 58,883 miles. 3 of these say a crash was involved and 1 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Vehicle 2019 Infiniti QX50 pure 4dr SUV awd (2.0l 4cyl turbo CVT) review we have this car about 3 months now. Have approximately 3500 miles on it. We experiencing a hug defect on this car. In october, I drove the infinity to the gym in the morning 5:20am. It was less than 1 miles away, parked the car outside about 70 minutes. Went home, parked the car in the garage 2 hours. When I got in the car and started, the fan came on. It was so loud that we can hear it inside the car with all windows up. It was on over 40 minutes from my house to work. …”
NHTSA complaint #11142301, filed 2018-10, 38 miles“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. …”
NHTSA complaint #11323350, filed 2020-05, 7,970 miles“Car would not drive upon pressure of the gas pedal placing driver in immediate danger. Driver pulled over multiple times, shifted car into park and turned car off, proceeded to attempt to drive again. After fourth time, the transmission/engine responded. This car was returned to autonation Infiniti of tustin two days after purchase, the dealership informed they would place the car back on the lot without inspection, this causes great concern for the safety of any future drivers of the car.”
NHTSA complaint #11330578, filed 2020-06, 7,515 miles“I have called sewell infiniti multiple times for service appointment to check on my engine , per the recall notice. They said they were not taking appointments because no parts yet. And just wait for them to contact me. I have call them around October and December. Both times they said the same thing.”
NHTSA complaint #11715112, filed 2026-02“While driving I heard a roaring noise from my engine and my car’s A/C stopped cooling. I have no warning messages from car regarding the engine. The noise only stops once the car is fully powered off. I recorded a video of the noise and alert panel that shows no warnings/issues. Will be contacting my local service department.”
NHTSA complaint #11586893, filed 2024-05Related service bulletins
- 10207847Jan 26, 2022REMOTE ENGINE START NOT WORKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- 10168888Nov 14, 2019MIL ON WITH DTC P0448 This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- 10163717Jul 12, 2019VCR Engine Inspection ***** Retailer Announcement ***** INFINITI is conducting a quality action on 324 specific 2019 QX50 (J55) vehicles (which were previously placed on…
- 10163716Jul 3, 2019Quality Assurance Hold ***** Retailer Announcement ***** INFINITI is committed to a high level of client service and satisfaction. This commitment requires INFINITI to…
- 10155154Feb 22, 20192019 QX50; SPARK KNOCK IF YOU CONFIRM: A spark knock or knocking type noise coming from the engine under a low RPM/high load driving pattern (alternatively, ?at low speeds?) AND…
- 10141444May 8, 20182019 QX50; MIL ON WITH ?CODE_200400? OR ?CODE_001200? STORED This bulletin has been amended throughout. Discard all previous versions of this bulletin.
- 10136202Mar 26, 2018INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended to update the Applied Vehicles. No other changes were made. Please discard previous versions…
Engine: other model years
Other parts of the 2019 Infiniti QX50
32 complaintsOther or unknown
20 complaintsElectrical system
17 complaintsForward collision avoidance
17 complaintsTransmission and drivetrain
17 complaintsBrakes
11 complaintsVehicle speed control
7 complaintsFuel system
6 complaintsSeats
5 complaintsSteering
3 complaintsBody and structure
3 complaintsBack-over prevention (rear camera)
2 complaints
← All problems reported for the 2019 Infiniti QX50
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology