2019 Infiniti QX50 Engine Problems

Mileage when the problem started

• Under 25k
  517%
• 25k–50k
  310%
• 50k–75k
  621%
• 75k–100k
  621%
• 100k–150k
  724%
• 150k+
  27%

Owner reports

Selected complaints filed with NHTSA by 2019 Infiniti QX50 owners, lightly cleaned up (personal details are redacted by NHTSA).

The contact owns a 2019 Infiniti QX50. While the contact's son was driving at an undisclosed speed, the engine seized with several unknown warning lights illuminated. The contact stated there was smoke and fire coming from the engine compartment. In addition, the smell of burning oil and smoke was inside the vehicle. The vehicle was towed to an independent mechanic, where it was diagnosed with engine failure. The contact was informed that the independent mechanic was not an engine expert and recommended that the vehicle be towed to an engine expert. The vehicle was towed to an alternate independent mechanic, where the vehicle was diagnosed with total engine failure. The contact was informed that the engine needed to be replaced. The vehicle was repaired. The engine was replaced with a used engine. …

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 unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that the vehicle sputtered while the accelerator pedal was depressed before accelerating as needed. The vehicle also failed to start immediately after the initial start-up due to a loss of battery power. The vehicle would be jump-started. The failure occurred intermittently but had become more consistent. The check engine warning light was illuminated. The contact stated that a year before the failure, the engine was making abnormally loud sounds and the vehicle failed to accelerate, with the check engine warning light illuminated. …

The contact owns a 2019 Infiniti QX50. The contact stated that there was a strong fuel odor coming from the vehicle after refueling. Additionally, 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 stated that while driving at various speeds and depressing the accelerator pedal, the vehicle failed to respond as intended, while the RPM became elevated. The contact stated that the vehicle was difficult to start and required to be jump-started. The Malfunction warning light and the check engine warning light were illuminated. The vehicle was taken to the dealer, where the contact was advised to pay a fee for a diagnostic test because the recall part was not yet available. The contact declined to pay the fee. …

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 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 unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that while driving approximately 45 MPH, the vehicle stalled. The contact was able to coast to the side of the road. There were no warning lights illuminated. The vehicle was towed to a certified mechanic who diagnosed a failure with the engine. The vehicle was not repaired. The vehicle was towed to the dealer and was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The manufacturer was notified of the failure. …

The contact owns a 2019 Infiniti QX50. The contact stated that while driving approximately 55 MPH, the vehicle was vibrating, and the vehicle stalled. There was no warning light illuminated. The contact attempted to pull over and felt that the vehicle had lost power steering assist functionality. The contact stated that extra effort was needed to steer the vehicle. The vehicle was shifted to park(P), and the check engine and oil warning lights illuminated. The contact attempted to restart the vehicle, but there was an abnormally loud knocking sound coming from the engine. The contact had the vehicle towed to a local dealer, where it was diagnosed but was not yet repaired. The contact was aware of NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling). …

The contact owns a 2019 Infiniti QX50. The contact stated that while driving at an undisclosed speed, there was an abnormally loud sound coming from the vehicle. There was no warning light illuminated. The contact received notification of NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling). The vehicle was taken to the dealer, where it was diagnosed with engine failure due to metal shavings found in the oil pan. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact was denied an engine replacement. The dealer informed the contact that the claim was denied due to the vehicle exceeding the warranty mileage and a lack of proper maintenance. The contact provided maintenance records; however, the claim was still denied. The dealer stated that the failure was related to insufficient maintenance and not the recall. …

The contact owns a 2019 Infiniti QX50. The contact stated that while driving 70 MPH, the vehicle stalled; however, the contact was able to pull off the highway safely to a safe place. There was an abnormal burning odor coming from the vehicle. The oil pressure warning light was illuminated. The vehicle was towed to an independent mechanic and was diagnosed with a seized engine. The vehicle was later towed to dealer to see if the failure was associated with NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling). However, the contact was notified that failure was caused by sludge in engine and could not qualify under the recall. The contact stated that the vehicle had exhibited the failure described in the recall, but the manufacturer and dealer refused to repair the vehicle without charge. The manufacturer was contacted by phone and made aware of the failure. …

The contact owns a 2019 Infiniti QX50. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that there was an abnormal sound coming from the vehicle. In addition, the check engine warning light was illuminated. The vehicle was taken to an independent mechanic where it was diagnosed with a failed pressure solenoid or pressure sensor. In addition, the contact was informed that the failure was due to engine failure. The dealer was made aware of the failure and informed the contact that parts were not yet available. The contact received notification of NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling); however, the parts for the recall repair were not yet available. The manufacturer was made aware of the failure. The failure mileage was approximately 103,000.

The contact owns a 2019 Infiniti QX50. The contact stated that while driving 60 MPH, there was an abnormal knocking sound coming from the vehicle with the check engine warning light illuminated. The vehicle was taken to two separate dealers. The vehicle was later towed to an independent mechanic, and a diagnostic test was performed and diagnosed with engine failure. Upon investigation, the mechanic discovered NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling); which the contact linked to the failure. The contact called the dealer about the recall and informed the dealer that the vehicle had experienced the failure. The contact was informed that a diagnostic test was needed to verify the defect. The manufacturer was notified of the failure but offered no assistance. The vehicle remained with the independent mechanic unrepaired. The failure mileage was approximately 81,000.

Related recalls

NHTSA investigations

Engine complaints in other QX50 years