The 2004 Infiniti QX56 is a full-size luxury SUV that debuted for the 2004 model year, serving as Infiniti's flagship SUV. Built on the robust F-Alpha platform shared with the Nissan Titan, it offered substantial presence. The sole body style was a four-door SUV, and the primary trim was simply the QX56. Its popularity stemmed from its powerful V8 engine, spacious and luxurious interior, and commanding road presence, making it a compelling alternative to domestic luxury SUVs.
The Good
The 2004 QX56 boasts a potent V8 engine for confident towing and acceleration, a plush and cavernous interior for supreme comfort, and a robust, truck-based chassis for durability. Its imposing design appeals to those seeking a statement vehicle, while its surprisingly smooth ride offers practicality for families.
The Bad
Potential owners should be aware of its thirst for fuel, the significant weight of the vehicle which can impact handling and braking, and the possibility of costly repairs on its more complex electronic systems and aging components common in older luxury SUVs.
2004 Infiniti QX56: Quick Overview
- Engine: The 2004 Infiniti QX56 came standard with a formidable 5.6-liter V8 engine.
- Horsepower: This V8 produced 315 horsepower.
- Torque: It delivered a stout 390 lb-ft of torque.
- Transmission: A 5-speed automatic transmission was standard.
- Drivetrain: Buyers could choose between rear-wheel drive (RWD) or an optional All-Mode four-wheel drive (4WD) system.
- Fuel Economy: Expect poor fuel economy; EPA estimates were around 12 mpg city / 16 mpg highway for RWD and slightly less for 4WD.
- 0-60 Times: Acceleration was respectable for its size, typically in the mid-to-high 7-second range.
- Towing Capacity: The QX56 was rated to tow up to 8,900 pounds when properly equipped with a tow package, making it suitable for heavy trailers.
- Trim-Level Features: The sole trim level was the QX56, which came generously equipped. Standard features often included:
- Leather upholstery
- Heated front seats
- Power-adjustable front seats with memory
- Tri-zone automatic climate control
- Power sunroof
- Bose premium audio system
- Navigation system (optional but common)
- Rear-seat entertainment system (optional)
- Power liftgate
- Xenon headlights
- 18-inch alloy wheels
- Third-row seating (standard on most models)
2004 Infiniti QX56 Specifications
Vehicle Information
| Year | 2004 |
| Make | Infiniti |
| Model | QX56 |
| Trim | - |
| Style | 2WD |
| Type | Sport Utility Vehicle |
| Category | Standard Sport Utility Vehicle |
Manufacturing Details
| Made In | United States |
| Manufacturing City | CANTON |
Dimensions
| Doors | 4-Door |
| Curb Weight | 5360 pounds |
| Gross Vehicle Weight Rating | 8000 pounds |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 5.6-L V-8 |
| Engine Size | 5.6L |
| Engine Cylinders | 8 |
| Transmission | 5-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 5-Speed |
| Drivetrain | Rear-Wheel Drive |
Additional Features
| Anti-Brake System | Standard |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $47,400 |
| Invoice Price | $43,551 |
| Delivery Charges | $680 |
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What Problems Does the 2004 Infiniti QX56 Have?
The 2004 Infiniti QX56, while generally robust due to its truck-based platform, does have some commonly reported issues that potential buyers should be aware of. One of the most frequent concerns is related to the transmission. While not universal, some owners have reported premature transmission failure, especially in higher mileage vehicles. Symptoms can include slipping gears or hard shifting.
Suspension components are another area where wear and tear can become apparent. Bushings, ball joints, and struts can require replacement over time, leading to a less precise ride and potential clunking noises. Given its size and weight, this is not entirely unexpected.
The power liftgate mechanism is also known to be a source of frustration, with some units failing to operate correctly or requiring repairs. This can be an expensive fix.
Electrical gremlins can surface in older luxury vehicles, and the QX56 is no exception. Issues can range from malfunctioning infotainment systems and navigation screens to problems with power windows and door locks. These can be difficult to diagnose and repair.
Regarding recalls, it's essential to check the National Highway Traffic Safety Administration (NHTSA) database for any applicable recalls for a specific VIN. While the 2004 model year may have had some, they are typically addressed.
Long-term reliability is somewhat mixed. The core powertrain is strong, but the sheer number of luxury features and complex systems means more potential failure points as the vehicle ages. Consistent and thorough maintenance is crucial to mitigating many of these potential issues. For example, regular fluid changes for the transmission and differential can go a long way. The fuel system, particularly the fuel pump, can also be a point of failure on some models.
While model year specific significant widespread issues for 2004 are not heavily documented beyond general aging concerns, it's always wise to have a pre-purchase inspection by a mechanic familiar with Nissan/Infiniti SUVs to catch any developing problems.
Suspension components are another area where wear and tear can become apparent. Bushings, ball joints, and struts can require replacement over time, leading to a less precise ride and potential clunking noises. Given its size and weight, this is not entirely unexpected.
The power liftgate mechanism is also known to be a source of frustration, with some units failing to operate correctly or requiring repairs. This can be an expensive fix.
Electrical gremlins can surface in older luxury vehicles, and the QX56 is no exception. Issues can range from malfunctioning infotainment systems and navigation screens to problems with power windows and door locks. These can be difficult to diagnose and repair.
Regarding recalls, it's essential to check the National Highway Traffic Safety Administration (NHTSA) database for any applicable recalls for a specific VIN. While the 2004 model year may have had some, they are typically addressed.
Long-term reliability is somewhat mixed. The core powertrain is strong, but the sheer number of luxury features and complex systems means more potential failure points as the vehicle ages. Consistent and thorough maintenance is crucial to mitigating many of these potential issues. For example, regular fluid changes for the transmission and differential can go a long way. The fuel system, particularly the fuel pump, can also be a point of failure on some models.
While model year specific significant widespread issues for 2004 are not heavily documented beyond general aging concerns, it's always wise to have a pre-purchase inspection by a mechanic familiar with Nissan/Infiniti SUVs to catch any developing problems.
How long will the 2004 Infiniti QX56 last?
Based on owner data and typical maintenance habits, a well-maintained 2004 Infiniti QX56 can realistically achieve 200,000 to 250,000 miles or more. The truck-based F-Alpha platform provides a solid foundation for durability, meaning the chassis and main drivetrain components (engine and transmission, if properly cared for) can last a very long time. However, the luxury features and associated electronics can become weak points over time. Items like the power liftgate, navigation system, and various sensors are more prone to failure with age and mileage. Consistent fluid changes, particularly for the transmission, and diligent attention to suspension wear will significantly extend its service life. Neglect of routine maintenance will accelerate the decline of both mechanical and electrical systems, leading to costly repairs.
What Technology & Safety Features are Included?
The 2004 Infiniti QX56 was positioned as a luxury SUV, and its features reflect that ambition for its era. Standard technology and entertainment included a premium Bose audio system, often with an in-dash CD player. Many models were equipped with a sophisticated navigation system, which, while dated by today's standards, was a significant technological offering at the time. The climate control was tri-zone automatic, allowing for different temperature settings for the driver, front passenger, and rear occupants.
Safety features were also a strong suit. Standard equipment included anti-lock brakes (ABS), electronic brakeforce distribution (EBD), brake assist, and front-seat side-impact airbags. Full-length side curtain airbags for all three rows were also standard, providing enhanced protection in side-impact collisions. Traction control and stability control systems were also included to help manage the vehicle's significant mass.
Optional features added to the luxury and convenience quotient. The most notable optional package was the Theater Package, which included a rear-seat entertainment system with a flip-down LCD screen and wireless headphones, a highly desirable feature for families. A power liftgate was also a common and appreciated option, simplifying cargo loading.
Crash-test ratings for the 2004 QX56 are available from the NHTSA. It received five out of five stars in the frontal driver and passenger crash tests, indicating excellent protection in frontal impacts. In side-impact tests, it also achieved high ratings, with four stars for the front driver and passenger and five stars for the rear passenger. Rollover resistance ratings were also competitive for a large SUV of its era.
While driver-assistance features as we know them today (like adaptive cruise control or lane departure warning) were not available, the QX56 offered a suite of modern safety technologies for its time, combined with a robust body-on-frame construction, contributing to its strong crash test performance.
Safety features were also a strong suit. Standard equipment included anti-lock brakes (ABS), electronic brakeforce distribution (EBD), brake assist, and front-seat side-impact airbags. Full-length side curtain airbags for all three rows were also standard, providing enhanced protection in side-impact collisions. Traction control and stability control systems were also included to help manage the vehicle's significant mass.
Optional features added to the luxury and convenience quotient. The most notable optional package was the Theater Package, which included a rear-seat entertainment system with a flip-down LCD screen and wireless headphones, a highly desirable feature for families. A power liftgate was also a common and appreciated option, simplifying cargo loading.
Crash-test ratings for the 2004 QX56 are available from the NHTSA. It received five out of five stars in the frontal driver and passenger crash tests, indicating excellent protection in frontal impacts. In side-impact tests, it also achieved high ratings, with four stars for the front driver and passenger and five stars for the rear passenger. Rollover resistance ratings were also competitive for a large SUV of its era.
While driver-assistance features as we know them today (like adaptive cruise control or lane departure warning) were not available, the QX56 offered a suite of modern safety technologies for its time, combined with a robust body-on-frame construction, contributing to its strong crash test performance.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
2004 Infiniti QX56 Prices and Market Value
When new, the 2004 Infiniti QX56 carried a Manufacturer's Suggested Retail Price (MSRP) that typically started in the mid-$50,000 range and could climb higher with optional packages. For example, a well-equipped model could approach $60,000. As a luxury SUV from nearly two decades ago, it has experienced significant depreciation. Current used market prices for a 2004 QX56 in average condition can range widely from around $3,000 to $8,000, heavily dependent on mileage, condition, and maintenance history. Factors severely affecting resale value include high mileage, a history of poor maintenance, visible wear and tear on the interior and exterior, and any known mechanical issues. Conversely, a meticulously maintained QX56 with lower mileage and desirable options can command a higher price within the used market.
2004 Infiniti QX56 Cost of Ownership
Owning a 2004 Infiniti QX56 is generally considered costly. Insurance premiums can be higher than average due to its luxury classification and powerful engine. Fuel costs will be substantial, with its V8 engine and heavy weight yielding poor mileage, often in the low teens. Maintenance costs are moderate for routine items, but as the vehicle ages, repairs become more frequent and expensive. Expect higher bills for parts and labor, especially for complex electrical systems or transmission work. Overall, it is not an economical vehicle to own and operate; be prepared for significant ongoing expenses beyond the initial purchase price.
2004 Infiniti QX56 Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
28 gallons
City Mileage
13 miles/gallon
Highway Mileage
19 miles/gallon
2004 Infiniti QX56 Safety Rating
NHTSA
IIHS
2004 Infiniti QX56 Recalls & Defects
Engine and Engine Cooling
Recall date
2010-10-28
Recall no.
10v517000
Source
NHTSA
Summary
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.
Consequence
This Could Cause Engine Stalling Increasing THE Risk OF A Crash.
Remedy
Dealers Will Replace THE ECM Relay Inside THE Ipdm Assembly. This Service Will BE Performed Free OF Charge. THE Safety Recall Began ON December 6, 2010. Owners MAY Contact Nissan AT 1-800-647-7261.
Notes
Owners MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO <A Href=http://Www.safercar.gov>http://www.safercar.gov</a> .
Suspension:front:control Arm:lower ARM
Recall date
2010-05-20
Recall no.
10e019000
Source
NHTSA
Summary
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.
Consequence
IF THE Collar Weld Separates, THE Vehicle Handling Will Deteriorate, Possibly Resulting IN A Vehicle Crash.
Remedy
Nissan Will Notify Owners and Dealers Will Replace ANY Affected Lower Link Free OF Charge. THE Safety Recall Began ON July 12, 2010. Owners MAY Contact Nissan AT 1-800-647-7261.
Notes
Owners MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO <A Href=http://Www.safercar.gov>http://www.safercar.gov</a> .
2004 Infiniti QX56 Insurance
Insurance for a 2004 Infiniti QX56 is moderately priced, reflecting its status as a Sport Utility Vehicle with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2004 Infiniti QX56 Compare to Other Sport Utility Vehicle?
The 2004 Infiniti QX56 competed in the burgeoning full-size luxury SUV segment against formidable rivals such as the Cadillac Escalade, Lincoln Navigator, and the GMC Yukon Denali. In terms of performance, the QX56's 315-horsepower V8 was competitive, offering strong acceleration and robust towing capacity comparable to or exceeding its peers, particularly the Escalade of the same era.
Features were a strong point for the QX56. It often came with a generous array of luxury amenities as standard or part of readily available packages, including leather, premium audio, and navigation, matching or surpassing what competitors offered. The rear-seat entertainment system was a particularly appealing feature.
Reliability is where the QX56 can be a mixed bag compared to its rivals. While its truck-based chassis is durable, certain Infiniti-specific electronic components and transmission issues have been reported, which some might argue placed it slightly behind the more established and sometimes simpler mechanicals of certain GM products, though the Escalade also had its share of electronic woes.
Price-wise, the QX56 was positioned competitively, often starting slightly higher than its GM counterparts but offering more standard equipment, making its overall value proposition attractive.
Alternatives to consider from the same era include the Cadillac Escalade (known for its strong presence and luxury appointments, but potentially similar reliability concerns) and the Lincoln Navigator (often praised for its spacious interior and comfortable ride, but sometimes considered less powerful). For those prioritizing outright reliability and a simpler ownership experience in a large SUV, a well-maintained Toyota Sequoia or Lexus LX 470 might be considered, though they offer a more utilitarian luxury and less aggressive styling.
If looking for similar capability with potentially better long-term reliability and fuel efficiency (though still not great), newer models from any of these brands or even a large crossover SUV might be a better fit, but for a direct comparison of the 2004 era, the QX56 held its own.
Features were a strong point for the QX56. It often came with a generous array of luxury amenities as standard or part of readily available packages, including leather, premium audio, and navigation, matching or surpassing what competitors offered. The rear-seat entertainment system was a particularly appealing feature.
Reliability is where the QX56 can be a mixed bag compared to its rivals. While its truck-based chassis is durable, certain Infiniti-specific electronic components and transmission issues have been reported, which some might argue placed it slightly behind the more established and sometimes simpler mechanicals of certain GM products, though the Escalade also had its share of electronic woes.
Price-wise, the QX56 was positioned competitively, often starting slightly higher than its GM counterparts but offering more standard equipment, making its overall value proposition attractive.
Alternatives to consider from the same era include the Cadillac Escalade (known for its strong presence and luxury appointments, but potentially similar reliability concerns) and the Lincoln Navigator (often praised for its spacious interior and comfortable ride, but sometimes considered less powerful). For those prioritizing outright reliability and a simpler ownership experience in a large SUV, a well-maintained Toyota Sequoia or Lexus LX 470 might be considered, though they offer a more utilitarian luxury and less aggressive styling.
If looking for similar capability with potentially better long-term reliability and fuel efficiency (though still not great), newer models from any of these brands or even a large crossover SUV might be a better fit, but for a direct comparison of the 2004 era, the QX56 held its own.
Final Verdict: Is the 2004 Infiniti QX56 a Good Sport Utility Vehicle?
The 2004 Infiniti QX56 is ideal for buyers seeking a large, luxurious, and powerful SUV with a commanding presence at a significantly reduced price point compared to its original cost. It's best suited for those who prioritize passenger comfort, towing capability, and a plush interior over fuel efficiency or cutting-edge technology. It is worth buying if you can find a well-maintained example with a documented service history, as it offers substantial value for its size and features.
When considering a purchase, focusing on used models is the only option. A thorough pre-purchase inspection by a trusted mechanic is absolutely crucial to identify potential costly repairs. Given its age, any QX56 will likely require some ongoing maintenance. It is most recommended for individuals or families who understand the potential for higher running costs (fuel, repairs) associated with owning an older, large luxury vehicle and are prepared for them, rather than expecting a budget-friendly ownership experience.
When considering a purchase, focusing on used models is the only option. A thorough pre-purchase inspection by a trusted mechanic is absolutely crucial to identify potential costly repairs. Given its age, any QX56 will likely require some ongoing maintenance. It is most recommended for individuals or families who understand the potential for higher running costs (fuel, repairs) associated with owning an older, large luxury vehicle and are prepared for them, rather than expecting a budget-friendly ownership experience.
Drew B
Drew is a seasoned automotive expert and contributor to VinCheck.info. With nearly 15 years of experience as a former Porsche technician, he brings a wealth of hands-on knowledge to his writing. Born in North Carolina, a region renowned for its deep-rooted NASCAR culture, Drew developed a passion for cars early in life, often building and working on vehicles from a young age. At VINCheck, Drew leverages his extensive technical background to provide in-depth analyses of various vehicles. His articles often focus on engine performance, reliability, and maintenance insights, offering readers practical information grounded in real-world experience. Some of his notable contributions include reviews on the Mazda CX-5's longevity and detailed examinations of engine options for models like the 2011 Toyota Camry and Tacoma