Discover Infiniti QX56 Years to Avoid and Common Problems

Patrick Oziegbe
Updated On:

Are you in the market for a luxurious and high-performance Infiniti QX56? While this SUV has earned a reputation for its luxury and performance, not all model years are created equal.

Knowing which years to avoid is essential to ensure you get the most reliable vehicle.

Don’t worry; I’ve got you covered. In this article, we’ll explore which Infiniti QX56 model years to avoid and which ones to consider for a smooth driving experience.

So, let’s dive into the details and discover which years to steer clear of when purchasing an Infiniti QX56.

Infiniti QX56 years to avoid

Years to Avoid: Infiniti QX56


During the 2004-2008 years, Infiniti QX56 owners reported several issues. One of the most common problems is the radiator fluid leaking into the transmission in the 2008 model.

This issue can cause significant damage to the transmission and may require costly repairs.

Another problem reported during this period was the brake booster’s malfunction. It can reduce braking capability, making you and your passengers unsafe.

Knowing the potential risks involved when purchasing an Infiniti QX56 from these years is important.

Moreover, the overall reliability of these models is lower compared to other years, making it essential to weigh the risks before making a purchase decision.


In the 2011-2013 Infiniti QX56 models, the most common problem is a failure of the fuel gauge system.

This issue can cause inaccurate fuel readings, leading to situations where your vehicle may run out of fuel or give you false information regarding the amount of fuel left in the tank.

An additional issue reported during this period is the seat memory sensor malfunction, causing inconvenience for you and your passengers.

The 2011 model holds the most complaints, so you should be cautious when considering these years for your purchase.

To recap, you need to carefully research the Infiniti QX56 models from 2004-2008 and 2011-2013 to understand the common issues and other potential risks involved fully.

Common Problems, Reliability Issues, and Complaints

This section will explore the common problems, reliability issues, and complaints associated with the Infiniti QX56.

Engine Problems

One common problem with the Infiniti QX56 is abnormal noise from the timing chain area.

Many owners have reported this issue, which can be a sign of more severe problems, so it’s crucial to have your car checked by a mechanic if you notice any such noises.

Transmission Issues

Transmission problems related to a cracked radiator have plagued some Infiniti QX56 owners.

The 2005 QX56 has been known to suffer from these issues, with an average cost of $3,900 to fix and occurring around 78,000 miles.

Another transmission-related issue is radiator leaks into the transmission in the 2008 QX56, so keep an eye out for any signs of transmission fluid mixing with coolant.

Rust Concerns

Although rust concerns are not as widespread in the Infiniti QX56, they are still something you should be mindful of.

Most vehicles are prone to rust after several years, especially if they have yet to be adequately maintained or exposed to harsh weather conditions.

Check the undercarriage and body of your QX56 for any signs of rust, as it can lead to more severe and costly damages if left untreated.

Recalls and Safety

Airbag Warning Light

One issue you might encounter with the Infiniti QX56 is related to the airbag warning light. Sometimes, this light may illuminate due to a malfunction in the airbag system.

It’s essential to address this issue promptly, as it can affect the performance of the airbags in the event of an accident. Remember that safety should be a priority when on the road.

Airbag Inflator

Another safety concern for the Infiniti QX56 is the airbag inflator. There have been recalls involving certain model years, such as 2013, where the airbag inflators may risk rupturing during a crash.

This defect could lead to potential injury or fatality. Check for any applicable recalls and address them immediately to ensure your safety.

Fuel Pressure Sensor

The Infiniti QX56’s fuel pressure sensor is another area that may cause concern. There have been instances of the fuel pressure sensor coming loose, potentially leading to a fuel leak.

Leaking fuel can increase the fire risk, posing a hazard to you and your passengers. Check online resources, such as the NHTSA website, to stay informed about any recalls related to the fuel pressure sensor.

Timing Chain

Lastly, the Infiniti QX56 has experienced issues with the timing chain. A faulty timing chain may result in engine noise and even potential engine failure.

Please pay attention to any abnormal noises or performance issues and address them promptly to keep your vehicle running smoothly.

In summary, when considering an Infiniti QX56, stay informed about recalls and safety concerns such as the airbag warning light, airbag inflator, fuel pressure sensor, and timing chain.

Reliability and Maintenance

Reliability Rating rates it 2.5 out of 5.0, ranking it 12th out of 19 luxury SUVs. JD Power also gives the 2011 Infiniti QX56 a quality and reliability score of 76 out of 100, considered average.

Mileage and Repairs

As you evaluate the QX56’s reliability, be aware of the potential issues that may arise with higher mileage. Although some owners have reported few problems after reaching 100,000 miles, certain model years have shown more issues than others.

Specifically, the 2004, 2005, and 2006 models of the Infiniti QX56 have been known to be the least reliable due to problems with service brakes, engines, and cooling systems.

These models also had the highest number of problems reported during the first year of ownership.

Expense to Maintain

Another factor to consider is the cost of maintenance and repairs for the Infiniti QX56.

This model has higher than average ownership costs, which may include routine maintenance and any potential repairs due to reliability issues.

It’s essential to consider whether the QX56 is the right vehicle for you and your budget.

Comparisons to Other Luxury SUVs

Let’s compare the Infiniti QX56 with other luxury SUVs in its class: Cadillac Escalade, Lincoln Navigator, Infiniti QX60, and Infiniti QX80.

Cadillac Escalade

When you think of a luxury SUV, the Cadillac Escalade might be one of the first vehicles that come to mind. It has a roomy and upscale interior, massive cargo space, and powerful engine options.

Compared to the Infiniti QX56, the Escalade offers more advanced technology and updated features. However, the QX56 and the Escalade share some common issues, such as relatively low fuel economy and occasionally dodgy reliability.

If you prioritize the latest technology and don’t mind the price tag, you might prefer the Cadillac Escalade over the QX56.

Lincoln Navigator

The Lincoln Navigator is another luxury SUV competitor. It boasts a spacious, high-quality interior, refined driving experience, and impressive towing capacity.

Compared to the Infiniti QX56, the Navigator provides more user-friendly technology and a stronger reputation for reliability.

Common problems for both the QX56 and Navigator are issues with interior finish quality and electrical glitches. As you weigh your options, consider the Navigator if you value a smooth ride and dependability.

Infiniti QX60

The Infiniti QX60 is a more direct comparison to the QX56, as they belong to the same brand and target similar audiences.

The QX60 offers a comfortable ride, optional second-row captain’s chairs, and a lower starting price than the QX56.

Some common issues for both models involve transmission problems and electrical issues QX60. If you’re looking for a more budget-friendly Infiniti SUV, the QX60 might be your better choice.

Infiniti QX80

Lastly, let’s look at the Infiniti QX80, an updated version of the QX56. The QX80 offers a more modern design, updated technology, and improved performance compared to its older counterpart.

Common problems the QX80 and QX56 share are electronic issues and interior finish concerns. Learn full Infiniti QX80 years to avoid facts,

If you’re interested in an Infiniti SUV with a more recent design and upgraded features, the QX80 might be the right choice. You may love to see the major differences and similarities between Infiniti QX80 and Nissan Armada SUVs here.

QX56 Performance and Specifications


The Infiniti QX56 is powered by a 5.6L V8 gas engine, which produces 400 horsepower at 5800 rpm. This engine provides a generous amount of power, making it suitable for city and highway driving.

You’ll enjoy a smooth and comfortable ride when behind the wheel of this luxury SUV.

0-60 and Quarter Mile Times

Regarding acceleration, the QX56 can go from 0 to 60 miles per hour (mph) in approximately 6.5 seconds.

While this may not be class-leading performance, it’s still impressive for a full-size luxury SUV with a robust V8 engine.

The quarter-mile time for the QX56 is also noteworthy, clocking in at around 15 seconds. It means that, in addition to having a comfortable ride, you can also enjoy a decent level of performance from your QX56.

In conclusion, the Infiniti QX56’s performance and specifications show that it offers a blend of power, comfort, and reliability.

With its powerful V8 engine, solid acceleration, and overall performance capabilities, the QX56 can deliver a satisfying driving experience, whether navigating the city streets or cruising on the highway.

Fuel Efficiency and Dimensions


When considering the fuel efficiency of the Infiniti QX56, you’ll find that the combined gas mileage for a 2008 model ranges from 14.5 miles per gallon (17.0 liters per 100 km) to 15 miles per gallon (16.5 liters per 100 km).

Furthermore, the city gas mileage for the same model is 12 miles per gallon (20.0 liters per 100 km). This vehicle’s 2013 QX56 2WD model has a fuel economy of 16 MPG combined, with 14 MPG in the city and 20 MPG on the highway.

Towing Capacity

The Infiniti QX56 has a powerful V8 engine, allowing it to tow quite a lot. To give you a better idea, the towing capacity for the 2013 QX56 is as follows:

  • Maximum towing capacity: 8,500 lbs

Ensure you also consider any additional factors, such as payload, that can impact the towing capacity of your specific QX56 model.


As for the dimensions of the Infiniti QX56, a 2008 model features the following measurements:

  • Length: 207.3 inches
  • Width: 79.3 inches
  • Height: 75.8 inches

When comparing these dimensions to the 2013 QX56 model, you’ll notice some slight differences:

  • Length: 208.3 inches
  • Width: 79.9 inches
  • Height: 75.8 inches

Additional Resources

Consumer Ratings

Checking consumer ratings can give you valuable insights into the overall satisfaction of Infiniti QX56 owners.

You can find ratings on various aspects, including performance, reliability, fuel economy, etc. Use these reviews to better understand potential issues with certain model years and identify which years may be best to avoid.


Journalists and experts in the automotive industry often share their views on different vehicles, including positives and drawbacks.

Look for press articles discussing common issues, significant improvements in the Infiniti QX56, and other insights that can help narrow your search.

User Complaints

A vital resource for learning more about potential issues with the Infiniti QX56 is to review user complaints.

Drivers often share their experiences online, providing real-world details about their problems. Browse these complaints to be aware of common issues, such as radiator fluid leaks, outdated interior technology, etc.


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