Photo: Wikimedia Commons (CC)
Power
0–62 mph (0–100 km/h)
Top speed (180 km/h)
Combined, EPA 2013
What owners say
Our take, from owner reports
Mixed sentiment with a clear generational divide.
7 problems reported (3 very frequent, 3 recurrent, 1 isolated) · high confidence
Problems owners report
- Very frequentPremature catalytic converter failure
Very expensive repair ($1,700-$6,000 for parts), often occurs shortly after warranty expiration, can cause misfires and running rich.
- Very frequentTiming chain system failure
Causes loud whistling/whining noise, loss of power, can lead to catastrophic engine damage with metal in oil; repair costs extremely high ($4,000-$13,500).
- Very frequentExcessive fuel consumption
Real-world mileage reported as low as 11-12 MPG.
+ 4 more issuesShow fewer
- RecurrentElectrical/battery drain issues
Batteries reported to die every 24 months; parasitic drain suspected; issues with starting, voltage fluctuations, and various electronic component failures (HVAC, dashboard lights, navigation).
- RecurrentTransmission concerns
Includes torque converter shudder at highway speeds, slipping, and isolated reports of TCM (Transmission Control Module) failures that are expensive and difficult to repair.
- RecurrentInterior material quality
Leather and interior materials noted to degrade, crack, bubble, or wear out prematurely.
- IsolatedSuspension issues
Air suspension failures noted as expensive to maintain; general mention of suspension problems making rides uncomfortable.
The version owners recommend
Insufficient owner data available to designate a specific model year or trim as "best." Feedback is primarily divided by generation, with implicit favor towards the 2005-2010 first-generation models for their perceived mechanical robustness and away from the 2011-2013 models due to the timing chain and catalytic converter issues. One owner noted the Infiniti could be had with load-leveling rear air suspension, but no trim level consensus exists.
Competitors to consider
Owners compare it most often with the Toyota Sequoia, Lexus LX 570/LX 600, Nissan Armada, Ford Expedition and Lincoln Navigator.
Is the QX56 right for you?
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Overall sentiment
Mixed sentiment with a clear generational divide. The first-generation QX56 (2004-2010) is generally viewed as a robust, reliable, and capable full-size SUV with a "bulletproof" V8 powertrain, offering significant value on the used market due to high depreciation. Long-term owner reports praise its durability, with multiple examples cited reaching 200,000 to 350,000 miles with basic maintenance. However, the second-generation model (2011-2013, often referred to as the updated shape) is the subject of significant and recurrent criticism centered on two major, expensive failures: premature catalytic converter failure and timing chain system failure. These issues, often occurring just outside of warranty, result in repair bills ranging from $4,000 to over $13,000, severely impacting ownership costs and reliability perceptions. Beyond these critical faults, the vehicle is consistently noted for very poor fuel economy (11-12 MPG) and isolated reports of electrical gremlins, transmission concerns, and interior material quality issues. The consensus indicates the pre-2011 models can be a high-value, durable purchase for those accepting fuel costs, while the 2011-2013 models represent a substantial financial risk due to the well-documented powertrain failures.
Positioning vs competitors
Positioned as a value alternative to the Toyota/Lexus hegemony (Sequoia, LX) in the full-size, body-on-frame SUV segment. Community feedback consistently states that while the Toyota/Lexia products are "absolutely" better and more reliable, a used QX56 can be purchased for significantly less money ($10,000+ less for similar age/condition). The cost of known major repairs on the QX56 is acknowledged as high but is not expected to exceed the initial price premium of a Toyota product. It is noted as having more interior space in the second and third rows than contemporary Tahoes and Expeditions, though with less cargo room than a Suburban. The powertrain (when not failing) is praised for its strength and smoothness, and the vehicle is considered more luxurious and feature-rich than its Nissan Armada twin. It is ultimately seen as a competent, comfortable cruiser that suffers in comparison to competitors primarily due to the specific catastrophic failure modes of its later V8 engine.
Recommended configurations
Insufficient specific configuration data from owner discussions. Implicit recommendations include: purchasing a post-facelift first-generation model (2008+), verifying the timing chain service and catalytic converter health on any 2011-2013 model, and being prepared for high fuel costs. For those with air suspension, using aftermarket parts from suppliers like Arnott for repairs is mentioned as a cost-saving measure.
General recommendations
Suitable for buyers seeking a capable, comfortable, and spacious full-size luxury SUV at a significant discount compared to Toyota/Lexus counterparts, provided they budget for potential major repairs. Ideal for those who prioritize interior passenger space and V8 power over fuel efficiency. NOT recommended for buyers with a low tolerance for repair costs or those seeking maximum long-term reliability without significant intervention. Essential due diligence includes a thorough pre-purchase inspection focusing on catalytic converter condition and timing chain noise, obtaining full service history, and verifying any prior repairs related to the known failure points. For 2011-2013 models, setting aside a repair fund of $5,000-$10,000 is prudent. Consider extended warranty coverage if purchasing a newer used example.
Remarks
The critical catalytic converter and timing chain failures are overwhelmingly associated with the second-generation (2011-2013) QX56 and its 5.6L V8 engine. These are not described as mere maintenance items but as widespread, design-related failures that represent the primary ownership risk. The first-generation (2004-2010) models share the platform with the Nissan Titan and Armada and are repeatedly cited for exceptional longevity with basic care, though they are not immune to general age-related issues. The vehicle's high depreciation makes it a compelling used buy, but the potential repair costs can quickly negate the initial savings, creating a high-risk, high-reward scenario. Analysis based on approximately 35 substantive owner discussions spanning model years 2004-2013.
Generation by generation
Owner insights per generation and US complaint/recall records (NHTSA).
Complaints and recalls by model yearWorst year: 2004. Years to avoid: 2004Source: NHTSA (US)Show table
Each year graded against the model's other years: Year Score. See all Infiniti QX56 years to avoid
| Year | Complaints | Recalls | Most-reported area |
|---|---|---|---|
| 2010 | 25 | 3 | air bags |
| 2009 | 7 | 3 | suspension |
| 2008 | 53 | 4 | service brakes |
| 2007 | 21 | 2 | service brakes |
| 2006 | 79 | 4 | service brakes |
| 2005 | 80 | 4 | service brakes |
| 2004 | 106 | 2 | service brakes |
Complaint counts come from owner reports filed with the US National Highway Traffic Safety Administration. Higher-selling years naturally accumulate more complaints.
Recall notices22 on record · Source: NHTSA (US)Show recalls
2010 · suspension:front:control arm:lower armcampaign 10E019000
NISSAN IS RECALLING CERTAIN FRONT AND REAR LOWER LINKS, P/NOS. 54501ZQ00A, 54500ZQ00A, 551A1ZQ00A, 551A0ZQ00A , 54501EA00A, 54500EA00A, 551A1EA500, 551A0EA500, 54501ZR00A, AND 54500ZR00A, SOLD BETWEEN NOVEMBER 25, 2009 AND MAY 14, 2010 AS REPLACEMENT PARTS FOR MODEL YEAR 2004 THROUGH 2010 TITAN, ARMADA, AND QX56, AND MODEL YEARS 2005 THROUGH 2010 FRONTIER, XTERRA, AND PATHFINDER VEHICLES. THE LOWER CONTROL LINK ASSEMBLY HAS TWO CYLINDRICAL COLLARS FORMING THE INBOARD ATTACHMENT POINTS TO THE CHASSIS. DUE TO AN IMPROPER WELDING PROCESS SOME COLLARS MAY CONTAIN WELDS THAT DO NOT MEET STRENGTH SPECIFICATIONS.
2010 · suspension:front:control arm:lower armcampaign 10V208000
NISSAN IS RECALLING CERTAIN MODEL YEAR 2010 TITAN, ARMADA, QX56, FRONTIER, XTERRA, AND PATHFINDER VEHICLES MANUFACTURED FROM NOVEMBER 19, 2009 THROUGH MARCH 3, 2010. THE LOWER CONTROL LINK ASSEMBLY HAS TWO CYLINDRICAL COLLARS FORMING THE INBOARD ATTACHMENT POINTS TO THE CHASSIS. DUE TO AN IMPROPER WELDING PROCESS SOME COLLARS MAY CONTAIN WELDS THAT DO NOT MEET STRENGTH SPECIFICATIONS.
2010 · service brakes, hydraulic:pedals and linkagescampaign 10V072000
NISSAN IS RECALLING CERTAIN MODEL YEAR 2008-2010 TITAN, ARMADA, AND INFINITI QX56, AND MODEL YEAR 2008-2009 NISSAN QUEST VEHICLES. THE BRAKE PEDAL PIVOT PIN END WAS NOT SPIN-FORMED TO SPECIFICATION DURING THE MANUFACTURING PROCESS OF THE BRAKE PEDAL ASSEMBLY. THE PIVOT PIN COULD SLIDE AND CAUSE THE BRAKE PEDAL TO PARTIALLY DISENGAGE FROM THE BRAKE PEDAL BRACKET.
2009 · suspension:front:control arm:lower armcampaign 10E019000
NISSAN IS RECALLING CERTAIN FRONT AND REAR LOWER LINKS, P/NOS. 54501ZQ00A, 54500ZQ00A, 551A1ZQ00A, 551A0ZQ00A , 54501EA00A, 54500EA00A, 551A1EA500, 551A0EA500, 54501ZR00A, AND 54500ZR00A, SOLD BETWEEN NOVEMBER 25, 2009 AND MAY 14, 2010 AS REPLACEMENT PARTS FOR MODEL YEAR 2004 THROUGH 2010 TITAN, ARMADA, AND QX56, AND MODEL YEARS 2005 THROUGH 2010 FRONTIER, XTERRA, AND PATHFINDER VEHICLES. THE LOWER CONTROL LINK ASSEMBLY HAS TWO CYLINDRICAL COLLARS FORMING THE INBOARD ATTACHMENT POINTS TO THE CHASSIS. DUE TO AN IMPROPER WELDING PROCESS SOME COLLARS MAY CONTAIN WELDS THAT DO NOT MEET STRENGTH SPECIFICATIONS.
2009 · service brakes, hydraulic:pedals and linkagescampaign 10V072000
NISSAN IS RECALLING CERTAIN MODEL YEAR 2008-2010 TITAN, ARMADA, AND INFINITI QX56, AND MODEL YEAR 2008-2009 NISSAN QUEST VEHICLES. THE BRAKE PEDAL PIVOT PIN END WAS NOT SPIN-FORMED TO SPECIFICATION DURING THE MANUFACTURING PROCESS OF THE BRAKE PEDAL ASSEMBLY. THE PIVOT PIN COULD SLIDE AND CAUSE THE BRAKE PEDAL TO PARTIALLY DISENGAGE FROM THE BRAKE PEDAL BRACKET.
2009 · fuel system, other:storage:fuel gauge systemcampaign 10V074000
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.
2008 · suspension:front:control arm:lower armcampaign 10E019000
NISSAN IS RECALLING CERTAIN FRONT AND REAR LOWER LINKS, P/NOS. 54501ZQ00A, 54500ZQ00A, 551A1ZQ00A, 551A0ZQ00A , 54501EA00A, 54500EA00A, 551A1EA500, 551A0EA500, 54501ZR00A, AND 54500ZR00A, SOLD BETWEEN NOVEMBER 25, 2009 AND MAY 14, 2010 AS REPLACEMENT PARTS FOR MODEL YEAR 2004 THROUGH 2010 TITAN, ARMADA, AND QX56, AND MODEL YEARS 2005 THROUGH 2010 FRONTIER, XTERRA, AND PATHFINDER VEHICLES. THE LOWER CONTROL LINK ASSEMBLY HAS TWO CYLINDRICAL COLLARS FORMING THE INBOARD ATTACHMENT POINTS TO THE CHASSIS. DUE TO AN IMPROPER WELDING PROCESS SOME COLLARS MAY CONTAIN WELDS THAT DO NOT MEET STRENGTH SPECIFICATIONS.
2008 · service brakes, hydraulic:pedals and linkagescampaign 10V072000
NISSAN IS RECALLING CERTAIN MODEL YEAR 2008-2010 TITAN, ARMADA, AND INFINITI QX56, AND MODEL YEAR 2008-2009 NISSAN QUEST VEHICLES. THE BRAKE PEDAL PIVOT PIN END WAS NOT SPIN-FORMED TO SPECIFICATION DURING THE MANUFACTURING PROCESS OF THE BRAKE PEDAL ASSEMBLY. THE PIVOT PIN COULD SLIDE AND CAUSE THE BRAKE PEDAL TO PARTIALLY DISENGAGE FROM THE BRAKE PEDAL BRACKET.
2008 · air bags:side/windowcampaign 10V349000
NISSAN IS RECALLING MODEL YEAR 2008 NISSAN ARMADA AND INFINITI QX56 VEHICLES MANUFACTURED FROM FEBRUARY 7, 2007 THROUGH FEBRUARY 14, 2007. THESE VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 201, "PROTECTION IN INTERIOR IMPACT." AN OUT-OF-SPECIFICATION A-PILLAR FINISHER MIGHT IMPEDE THE CORRECT INFLATION OF THE SIDE CURTAIN AIR BAG NEAR THE UPPER PORTION OF THE B-PILLAR.
2008 · fuel system, other:storage:fuel gauge systemcampaign 10V074000
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.
2007 · suspension:front:control arm:lower armcampaign 10E019000
NISSAN IS RECALLING CERTAIN FRONT AND REAR LOWER LINKS, P/NOS. 54501ZQ00A, 54500ZQ00A, 551A1ZQ00A, 551A0ZQ00A , 54501EA00A, 54500EA00A, 551A1EA500, 551A0EA500, 54501ZR00A, AND 54500ZR00A, SOLD BETWEEN NOVEMBER 25, 2009 AND MAY 14, 2010 AS REPLACEMENT PARTS FOR MODEL YEAR 2004 THROUGH 2010 TITAN, ARMADA, AND QX56, AND MODEL YEARS 2005 THROUGH 2010 FRONTIER, XTERRA, AND PATHFINDER VEHICLES. THE LOWER CONTROL LINK ASSEMBLY HAS TWO CYLINDRICAL COLLARS FORMING THE INBOARD ATTACHMENT POINTS TO THE CHASSIS. DUE TO AN IMPROPER WELDING PROCESS SOME COLLARS MAY CONTAIN WELDS THAT DO NOT MEET STRENGTH SPECIFICATIONS.
2007 · fuel system, other:storage:fuel gauge systemcampaign 10V074000
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.
2006 · suspension:front:control arm:lower armcampaign 10E019000
NISSAN IS RECALLING CERTAIN FRONT AND REAR LOWER LINKS, P/NOS. 54501ZQ00A, 54500ZQ00A, 551A1ZQ00A, 551A0ZQ00A , 54501EA00A, 54500EA00A, 551A1EA500, 551A0EA500, 54501ZR00A, AND 54500ZR00A, SOLD BETWEEN NOVEMBER 25, 2009 AND MAY 14, 2010 AS REPLACEMENT PARTS FOR MODEL YEAR 2004 THROUGH 2010 TITAN, ARMADA, AND QX56, AND MODEL YEARS 2005 THROUGH 2010 FRONTIER, XTERRA, AND PATHFINDER VEHICLES. THE LOWER CONTROL LINK ASSEMBLY HAS TWO CYLINDRICAL COLLARS FORMING THE INBOARD ATTACHMENT POINTS TO THE CHASSIS. DUE TO AN IMPROPER WELDING PROCESS SOME COLLARS MAY CONTAIN WELDS THAT DO NOT MEET STRENGTH SPECIFICATIONS.
2006 · equipment:appliance:air conditionercampaign 08V284000
NISSAN IS RECALLING 180,664 MY 2005-2006 TITAN, ARMADA AND INFINITY QX56 VEHICLES MANUFACTURED AFTER MARCH 17, 2005, THAT ARE EQUIPPED WITH A VISTEON AIR CONDITIONING CONDENSER FAN MOTOR. THE FAN MOTOR MAY NOT BE PROPERLY SEALED ALLOWING EXCESSIVE WATER INTRUSION AND INADEQUATE DRAINAGE OF MOISTURE.
2006 · engine and engine coolingcampaign 10V517000
NISSAN IS RECALLING CERTAIN MODEL YEAR 2004-2006 ARMADA, TITAN, INFINITI QX56 AND MODEL YEAR 2005-2006 FRONTIER, PATHFINDER AND XTERRA VEHICLES. THE INTELLIGENT POWER DISTRIBUTION MODULE (IPDM) ASSEMBLY CONTAINS AN ENGINE CONTROL MODULE (ECM) RELAY THAT HAS A DIODE FOR ELECTRICAL CURRENT NOISE REDUCTION. THE ECM RELAY MAY ALLOW SILICON VAPOR TO FORM AND, OVER TIME, THE SILICON EVAPORATES FROM THE DIODE MOLDING WHICH CAUSES SILICON OXIDE TO DEVELOP ON THE ECM RELAY CONTACT DUE TO ARCING.
7 older recalls not shown. Check nhtsa.gov with your VIN for the full history.
Specifications
5.6 V8
5.6L 8-cylinder · 325 hp · AWD · automatic
Built 2007–2010