Second generation
2019 Infiniti QX50
The most reported problem on the 2019 Infiniti QX50 is engine failure, with 39 complaints, usually around 94,000 miles.
- 140owner complaints
- 3recalls
- 3involved a crash
- 53,000median miles at failure
Newest report Sep 25, 2026 · checked Oct 2, 2026
What is your QX50 doing?
Each one opens a sheet built from the owner reports of that problem on the 2019 model year.
Is the 2019 Infiniti QX50 reliable?
The 2019 Infiniti QX50 has 140 owner complaints on file with NHTSA, less than half the median of 281 for 2019 SUVs on this site. Of the 6 QX50 model years since 2016, it has the most complaints. Complaint counts rise with sales as well as faults, so read what owners report below before deciding.
At a glance
- Next to the 2020
- At 18 complaints for each year on the road, the 2019 runs 3.7 times the 2020 (5). That's the only adjacent model year with enough complaints to set beside it.
- Top problem
- Engine failure leads with 39 of the 140 complaints (28%), ahead of stalling at 26. It's a high-mileage complaint: half of the 21 owners who gave a mileage for engine failure were past about 94,000 miles.
- Crash, fire and injury reports
- 6 of the 140 complaints (4%) report a crash, a fire or an injury, a little under the 6% typical of vehicles on this site. Counted separately (one report can carry more than one), 3 reports mention a crash, 1 mentions a fire and 3 people were hurt.
- Recalls behind the top problems
- engine failure and stalling all have recalls on the same system, and the same campaigns cover them: 25V-437. A recall on the same system doesn't always cover the failure owners describe, so compare its summary with the complaints.
- When owners filed
- Filings jumped in 2025, with 56 complaints, 5.6 times the next busiest year. So far in 2026, 33 more have come in.
When each problem shows up
Each bar covers the middle half of the mileages owners reported for that problem. A quarter saw it earlier, a quarter later. The tick is the median. Most reported: engine failure, knocking or rod bearing, 39 complaints.
middle half of reports, median tick. The heavier grey bars have 75 or more reports.
Behind you
Around your mileage
Ahead of you
How this compares
140 complaints is 1.7 times fewer than the median 2019 model on this site and 2.0 times fewer than the median 2019 SUV. Among the 1 QX50 model years here it ranks 1st for complaints. Counts follow sales volume as much as reliability, so a truck that sells 700,000 a year draws more reports than a sedan that sells 200,000.
Service bulletins for the 2019 Infiniti QX50
Infiniti filed 172 bulletins and other notices with NHTSA that list the 2019 Infiniti QX50. 28 of them deal with a problem owners have reported on this car. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
Brakes on its own (automatic emergency braking) 1 bulletin · 14 complaints
AUTOMATIC EMERGENCY BRAKING WARNING LIGHT BLINKING
Check engine light or misfire 13 bulletins · 12 complaints
SERVICE INFORMATION FOR FUEL GAUGE INACCURATE WITH DTCS STORED IN ECM SERVICE INFORMATION If a fuel level sensor has been diagnosed as sending an incorrect level signal, and one or more of the following DTCs are stored in the ECM, do not replace the entire âFuel Level Sensor Unit, Fuel Filter and Fuel Pump Assemblyâ (fuel pump assembly).
EVAP LEAK DTC P0442, P0455, P0456 INFORMATION
11 more on this problem
DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING
MIL ON WITH DTC P062F AND/OR P0603 STORED IF YOU CONFIRM The MIL is ON and DTC P062F (EEPROM) and/or P0603 (ECM BACK UP/CIRCUIT) is stored, And The customer stated the vehicle was recently started after sitting for an extended period of time (i.e., the battery voltage was low while attempting to start the engine).
INFINITI; DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING
PERMANENT DTC SET IN TCM AND WILL NOT ERASE IF YOU CONFIRM One or more of the following DTCs are stored in the permanent DTC screen (Figure 1): P0715, P0716, P0718, P0730, P0791, P0793, P0794, P1722, P1742, P1745, P17F0, P17F1, P2766 And The DTCs will not erase when following the ESM procedure.
MIL ON WITH DTC P0448
2019 QX50; MIL ON WITH DTC P0087 STORED IF YOU CONFIRM The Malfunction Indicator Light (MIL) is ON with Diagnostic Trouble Code (DTC) P0087 (FRP CONTROL SYSTEM) stored in the Engine Control Module (ECM), AND The fuel level indicates ¼ or less. ACTION Reprogram the ECM and TCM, if applicable.
2019 QX50; MIL ON WITH DTC P0448 IF YOU CONFIRM The Malfunction Indicator Light (MIL) is ON with DTC P0448 (EVAP canister vent control valve) stored. ACTION Reprogram the ECM, if applicable.
ALL MODEL YEAR 2012 AND NEWER INFINITI VEHICLES; EVAP LEAK DTC P0442, P0455, P0456 INFORMATION
2019 QX50; MIL ON WITH DTC P0606 IF YOU CONFIRM The MIL is ON with DTC P0606 (CONTROL MODULE [control module processor]) stored. ACTION 1. Refer to step 6 in the SERVICE PROCEDURE to confirm this bulletin applies to the vehicle you are working on. 2. If this bulletin applies, reprogram the ECM.
ALL MODEL YEAR 2012 AND NEWER INFINITI VEHICLES; EVAP LEAK DTC P0442, P0455, P0456 INFORMATION The publication date has been revised to include the latest models and model years, and the Service Procedure has been updated.
Plus 1 older ones not listed here.
Engine knocking or ticking 1 bulletin · 9 complaints
2019 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 There are no DTCs stored in the ECM and/or TCM. ACTION 1.
Infotainment, screen or backup camera fails 11 bulletins · 6 complaints
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) 2015-2019 QX60 Hybrid (L50H) 2015-2024 QX80 (Z62) SERVICE INFORMATION The AEB system is ...
R1912 Rear Visibility System Campaign Quality Review ***** Retailer Announcement ***** INFINITI is committed to the safety, security and satisfaction of our clients and is conducting a quality review of specific repairs for a previously completed campaign ...
9 more on this problem
2019 QX50; AUDIO SYSTEM WILL NOT TURN ON AND/OR SCREENS FREEZE UP AFTER HANGING UP A PHONE CALL Discard all previous versions of this bulletin.
CLOCK, AUDIO, HVAC OR NAVIGATION SETTINGS INTERMITTENTLY CHANGE ON THEIR OWN
DTC B00A0-00 STORED IF YOU CONFIRM DTC B00A0-00 (OCCUPANT DETECTION SENSOR UNIT) is stored And OCS zero point reset cannot be performed And The following screen will display: ACTION 1.
AEB WARNING LIGHT BLINKING This bulletin applies only to vehicles equipped with a lane camera. SERVICE INFORMATION If the AEB warning light is blinking (but not illuminated steadily) or the customer states it is blinking, and there are no related DTCs, inspect the windshield.
2019 QX50; AUDIO SYSTEM WILL NOT TURN ON AND/OR SCREENS FREEZE UP AFTER HANGING UP A PHONE CALL Please
CLOCK, AUDIO, HVAC OR NAVIGATION SETTINGS INTERMITTENTLY CHANGE ON THEIR OWN This bulletin applies only to vehicles equipped with INFINITI InTouch (Intelligent Key). SERVICE INFORMATION An Intelligent Key, for the applied vehicles with INFINITI InTouch?, has the abillity to trigger specific customized settings for the radio, clock, ...
2018-2019 INFINITI VEHICLES; DISPLAY CONTROL UNIT SERVICE INFORMATION SERVICE INFORMATION If the Display Control Unit (DCU) needs to be replaced on an APPLIED VEHICLE for any reason, follow the steps in the Service Procedure to: - Confirm proper diagnosis and repair with TECH LINE to obtain DCU order approval, then place the order with DENSO.
2019 QX50; AUDIO SYSTEM WILL NOT TURN ON AND/OR SCREENS FREEZE UP AFTER HANGING UP A PHONE CALL IF YOU CONFIRM There is no audio, and the audio controls do not turn the radio/audio ON. and/or Both screens freeze up after hanging up a phone call. - The phone call was initiated with Voice Recognition while the phone menu was displayed on the upper screen.
2019 QX50; BATTERY TESTING WITH DSS-5000 VIN BARCODE WILL NOT SCAN SERVICE INFORMATION When testing the battery on an early production 2019 QX50 with the DSS-5000, the VIN barcode may not scan into the battery information screen. If this should occur, use the Edit Battery Information screen to manually enter each field.
Seat belt or seat problems 2 bulletins · 5 complaints
FRONT DRIVER AND/OR PASSENGER SEAT WILL NOT MOVE FORWARD
2019-2020 QX50; DRIVER SEAT WILL NOT MOVE FORWARD IF YOU CONFIRM After the driver side seat has been moved all the way to the maximum rearward position, it will not move forward. ACTION Replace the driver side seat lifter/slide assembly.
Complaints filed by year
56 complaints came in 2025, 5.6 times the year before. Owners file in waves when a problem gets press or an investigation, so a spike measures attention as much as failures.
NHTSA investigations
Complete loss of motive power due to engine failure. Closed jul 18, 2025, led to recall 25V-437.
NHTSA summary
Recalls that include the 2019 Infiniti QX50
Whether your car is included depends on its VIN. Check yours at nhtsa.gov/recalls.
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 and remedy
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.
Nissan North America, Inc. (Nissan) is recalling certain 2018-2019 Nissan Altima, Armada, Frontier, Kicks, Leaf, Maxima, Murano, NV, NV200, Pathfinder, Rogue, Rogue Sport, Sentra, Titan, Titan Diesel, Versa Note and Versa Sedan vehicles, as well as Infiniti Q50, Q60, QX30 and QX80 vehicles. Additionally included are 2019 Nissan GT-R and Taxi and Infiniti QX50, QX60, Q70, Q70L vehicles. The back-up camera and display settings can be adjusted such that the rear view image is no longer visible and the system will retain that setting the next time the vehicle is placed in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
Risk and remedy
Remedy: Nissan will notify owners in phases, having dealers update the back-up camera settings software, free of charge. The recall began November 11, 2019 and all affected VINs should be activated. Owners may contact Nissan customer service at 1-800-867-7669 or INFINITI customer service at 1-800-662-6200.
Nissan North America, Inc. (Nissan) is recalling certain 2019 INFINITI QX50 vehicles. In the event of a crash in very cold temperatures, the trim cover may separate unexpectedly from the passenger-side knee air bag module instead of splitting at the trim cover tear seam as designed.
Risk and remedy
Remedy: INFINITI will notify owners, and retailers will replace the passenger-side knee air bag module, free of charge. The recall began October 23, 2018. Owners may contact INFINITI customer service at 1-800-662-6200.
All 3 recalls on the 2019 Infiniti QX50, with the owner complaints on each recalled system
Guide Buying one used? How to research one car’s history before you pay
Questions
What is the most common problem on the 2019 Infiniti QX50?
Engine failure, with 39 of the 140 complaints. Owners who gave a mileage for it put the median at about 94,000 miles.
At what mileage do 2019 Infiniti QX50 problems start?
Of the 68 complaints that give a mileage, a quarter came by about 10,000 miles and half by about 53,000.
Is the 2019 Infiniti QX50 better or worse than the 2020?
Counted per year on the road, the 2019 has more complaints than the 2020: 18 a year against 5.
How many 2019 Infiniti QX50 complaints involve a crash, fire or injury?
6 of them (4%). The typical vehicle on this site is at 6%.
Is there a recall for engine failure on the 2019 Infiniti QX50?
Yes, NHTSA lists a recall on the same system: 25V-437. Its summary says which failure it covers, and that isn't always the one owners describe.