Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2011 Infiniti QX56 owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2011 Infiniti QX56. The contact stated while driving approximately 25 MPH, the vehicle began to shake and inadvertently stalled. The check engine warning light was illuminated. The vehicle was taken to a local dealer where it was diagnosed with needing the high-pressure fuel tank replaced. The vehicle was repaired however, the failure persisted. The manufacturer was not informed of the failure. The failure mileage was approximately 148,000.
Catalytic Converter, A/F Sensor failed on the interstate when I was driving with kids in the car. Took vehicle to the nearest dealer only to be told that this is a known problem with these vehicles and it was going to cost me $3,100 to repair.
Infiniti/Nissan issued a recall back in 2010 (recall id#10V074000) for fuel gauge/sensor sending unit problem. The same issue is happening on later year vehicles, but no recall has been issued. There are endless reports on the web across many forums where people are having the same problem for something that has been recalled before. See notes from past recall. Recall id # 10V074000 - fuel system, other:storage:fuel gauge system recall date: mar 03, 2010 summary: Nissan is recalling certain model year 2005-2009 titan, armada, and Infiniti QX56 vehicles. The instrument panel fuel gauge May inaccurately display that the vehicle still has some fuel, typically about one quarter tank, when the fuel tank is empty. Consequence: this could cause the vehicle to run out of gas and stall on the highway, which could cause a crash. Is this no longer a safety concern? Same issue, just later models... …
On June 1st 2020 I took my 2011 Infiniti QX56 to the shop for having the code p0087. The shop told me that I should take it to the dealership because the problems the vehicle is having are recalled under voluntary safety recall campaign. When I called my local Infiniti dealership they told me my VIN # doesn't doesn't show as recalled. They dealership provided me with the phone number of Infiniti consumer affairs. I called Infiniti affairs and told them about my vehicle they told me that they were sorry but my VIN doesn't show up on their system. The bottom line is that every single thing that I researched and find the wrong of the vehicle comes back with a voluntary recall. Like the fuel system, timing chain, vvt solenoids, high pressure fuel pump. I use vehicle in the city and highway.
Fuel leveling sensor is faulty in a large variety of Infiniti cars, but there is not recall for my VIN. The car's fuel gauge goes up and down all the time and tells me I'm on empty when I'm not and never registers full even when it was just filled up. It can jump from reading 330 miles left to empty down to 299 and back up to 330 in just a few seconds. The diagnostic confirmed a problem, but they want over $1,000 to fix a known problem in many of their makes and models. This doesn't even touch on the timing chain issue that is faulty as well. Luckily, there is a recall for that one. How is the consumer protected against this type of faulty parts? Is there anything we can do? We have been told we need to replace the fuel pump.
Tl* the contact owns a 2011 Infiniti QX56. The contact stated that while driving at an undisclosed speed, the vehicle failed to respond with the accelerator pedal depressed. The contact stated that there was an abnormal fuel odor coming from under the hood of the vehicle. Upon investigation, the contact became aware of a possible failure with the fuel rail sensor however, the VIN was not included. Infiniti of lubbock (6225 spur 327, lubbock, tx 79424, [phone]) was contacted and informed of the failure. The contact was informed that the repair cost would have to be paid for out of pocket. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 167,000.
Fuel line failure: a fuel line fitting/clamp on back side of engine (drivers side) is streaming fuel at a rate of approximately 1/2 cup per minute. While starting my car this morning, I noticed a strong smell of gasoline, so I checked underneath and saw gas steadily streaming from the car and forming a 2 foot diameter puddle. I am having the car towed to dealer's garage for repair later this week. The car has approximately 25000 miles and has never been in an accident. The fuel line leak May be related Infiniti's recall: NHTSA id: 14v-683.
Fuel line failure: a fuel line fitting/clamp on back side of engine (drivers side) is streaming fuel at a rate of approximately 1/2 cup per minute. While bring my kids to school this morning, I noticed a strong smell of gasoline, so I checked underneath and saw gas steadily streaming from the car and forming a puddles,I am having the car towed to dealer's garage for repair later this week. The car has never been in an accident. The fuel line leak May be related Infiniti's recall: NHTSA id: 14v-683.
Tl* the contact owns a 2011 Infiniti QX56. The contact heard an abnormal noise when the vehicle was being fueled and the check engine warning indicator illuminated. The vehicle was not taken to a dealer or an independent mechanic for diagnostic testing. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 126,557.
Less than a year after I got the timing debacle fixed, I get a "check engine light" on 2011 QX56. According to my warranty approved mechanic both cats were gone and were not covered. This complaint is the beginning of my goal of getting assurant or Infiniti to own this problem since the combined ca and fed cat warranty is 150K miles. My warranty should cover.
Fuel System complaints in other QX56 years
Frequently asked questions
How common are fuel system problems on the 2011 Infiniti QX56?
NHTSA has 20 complaints about the fuel & propulsion system of the 2011 Infiniti QX56, 26% of the model year's 78 complaints.
Is there a recall for 2011 Infiniti QX56 fuel system problems?
No. NHTSA lists no fuel & propulsion system recall for the 2011 Infiniti QX56, though it has 2 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2011 Infiniti QX56 fuel system problems start?
Half of the complaints with a recorded mileage happened before about 102,000 miles, and 6% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.