2006 Infiniti QX56 SUV Review | Edmunds.com

2006 Infiniti QX56 SUV

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Certified Pre-Owned (CPO) is a category of used car. Often late-model vehicles, they have been inspected, refurbished, if necessary, and are under warranty by the manufacturer.
Infiniti QX56 Features and Specs

Features & Specs

  • Engine 5.6 L V 8-cylinder
  • Drivetrain Rear Wheel Drive
  • Transmission 5-speed Automatic
  • Horse Power 315 hp @ 4900 rpm
  • Fuel Economy 12/18 mpg
  • Bluetooth Yes
  • Navigation Yes
  • Heated Seats Yes

Review of the 2006 Infiniti QX56

  • If the styling suits you, the rest of this import luxury SUV should, too, as the 2006 Infiniti QX56 more than measures up to its domestic competitors.

  • Safety
  • Pros

    Powerful and refined V8 power, good balance of ride and handling, class-leading towing capacity, roomy second-row seats, handy video parking monitor.

  • Cons

    Some low-grade cabin trim that's out of place in a luxury vehicle, typical big SUV thirst for fuel.

  • What's New for 2006

    Revisions for the 2006 Infiniti QX56 include a 60/40-split third-row seat, a standard Bluetooth hands-free system and new power-folding exterior mirrors.

Full 2006 Infiniti QX56 Review

What's New for 2006

Revisions for the 2006 Infiniti QX56 include a 60/40-split third-row seat, a standard Bluetooth hands-free system and new power-folding exterior mirrors.


With the 2004 introduction of the QX56, Infiniti decided to make its own mark on the full-size luxury SUV segment with a powerful and luxurious sport-ute of its own. "Q" has long been the letter to signify Infiniti's top models, namely the Q45 sedan, while the "X" stands for sport-utility. Finally, "56" denotes the SUV's 5.6-liter engine.

Looking at the QX56's profile, it's obvious that it's based on the Nissan Armada. It's not uncommon for luxury SUVs to share a familial resemblance with lower-line siblings, but we find the Armada's styling, particularly the roof and side window design, a little bizarre. With a curb weight of about 5,600 pounds, the QX56 needs some serious oomph to move it out, and fortunately it's got it. Displacing 5.6 liters, the 32-valve V8 pumps out 315 horsepower and 390 pound-feet of torque -- more than enough to make the heavyweight Infiniti QX56 feel light on its 18-inch tires. Both rear-wheel-drive (2WD) and four-wheel-drive (4WD) configurations are available. With a maximum tow rating of 9,000 pounds, the Infiniti SUV probably has more capacity than 90 percent of its owners will ever need.

With the interior of the Infiniti QX56, it's obvious that Infiniti attempted to turn a sow's ear (a.k.a. the Armada's interior) into a silk purse. The results are a mixed bag; the leather upholstery, beautiful wood trim and handsomely stitched and well-padded armrests boost the luxury quotient considerably over the bland Armada's. And both the first- and second-row seats are heated. But some low-grade components, notably the dull gauge cluster and the hard plastic used on the doors and dash top, bring it down when compared to its more lavishly appointed competitors. Nevertheless, the QX56's plush leather seats are sure to be enjoyed by all, and there's enough legroom in the second row so that even 6-footers can get comfortable. For those who may need eight-passenger capacity, a second-row bench seat is a no-cost option in lieu of the standard captain's chairs.

With class-leading performance, massive towing capacity (nearly double that of the Lexus LX 470) and a roomy and comfortable cabin, the 2006 Infiniti QX56 certainly makes a strong case for itself in the practical sense. Its long-range success will depend on how many buyers in this prestige-oriented segment are willing to prioritize those attributes over less substantial ones such as flashy style and status-quo nameplates.

Body Styles, Trim Levels, and Options

The Infiniti QX56 is a full-size luxury SUV that comes in one trim level with either two- or four-wheel drive. As expected, standard features are plentiful, including 18-inch chrome wheels, HID headlights, Bluetooth connectivity, leather seating for seven, real wood trim, a DVD-based navigation system, a 10-speaker Bose audio system, dual-zone automatic climate control, a separate rear air conditioner, one-touch power windows and a power rear liftgate. The short list of options includes a bench seat for the second row (increasing capacity to eight), satellite radio, a power sunroof and a very handy rear backup camera system packaged with adaptive cruse control.

Powertrains and Performance

Power comes by way of a 5.6-liter V8 with 315 hp and 390 lb-ft of torque. A five-speed automatic handles the shifting duties, sending the power to either the rear wheels or all four wheels via Infiniti's All-Mode all-wheel-drive system. Maximum towing capacity is 9,000 pounds with 2WD and 8,900 with 4WD.


Side curtain airbags offer protection to all three rows of passengers, and seat-mounted side-impact airbags protect front-seat passengers. A reverse-sensing system is standard, and a useful rear video camera is optional. All QX56s include four-wheel antilock disc brakes, traction and stability control and a tire-pressure monitor. Power-adjustable pedals help owners find an ideal driving position and are linked to the standard memory system. In NHTSA front-impact crash tests, the Infiniti QX56 earned a top five-star rating for its protection of front occupants.

Interior Design and Special Features

The Infiniti QX56 interior is swathed in leather and thick carpeting. The steering wheel is trimmed in wood and aluminum, and the console features a generous plank of either dark Macore or blonde Apaya wood trim. Unfortunately, hard plastics on the dash and doors somewhat detract from the upscale ambience. Second-row captain's chairs are standard, along with a removable center console and third-row split fold-flat bench seat. A fold-flat second-row bench seat is optional. Big as it feels on the inside, the QX56 has less maximum cargo capacity than an Escalade or Navigator, with just over 97 cubic feet of space. But if you're planning to seat passengers in all three rows, the Infiniti SUV has the advantage, with a generous 20 cubic feet behind the third row.

Driving Impressions

Around town, the 2006 Infiniti QX56 moves out briskly and effortlessly storms up freeway on-ramps to blend into fast-moving traffic. The five-speed automatic provides seamless gear changes and steps down promptly when a burst of power is needed for quick passing. An independent suspension all around provides the well-damped ride quality that luxury SUV buyers would expect along with surprisingly nimble handling for a vehicle of its size. Body lean is noticeable when cornering, but it's nothing excessive -- just a reminder to the driver that in spite of the QX56's sure handling, there is still a lot of sheet metal getting tossed around.

What Others Are Saying

Customer Reviews

Great suv but handling and

by on
Vehicle: 2006 Infiniti QX56 4dr SUV 4WD (5.6L 8cyl 5A)

I have owned my QX56 for about 5 years now and love the size, love the navi, loive the back up camera, love the interior and love the entertainment system. Driving this car though, has always been a challenge. I have had constant alignment and suspension problems and the brakes...oh the brakes. This super heavy truck warps brakes yearly!!! I am on a final set hopefully, slotted and drilled but wish I didn't have to go aftermarket! You would think Infiniti would have matched their rotors to the weight of the car!! Questioning getting another although I love the styling.

1 of 1 people found this review helpful

Great family suv

by on
Vehicle: 2006 Infiniti QX56 4dr SUV 4WD (5.6L 8cyl 5A)

our 3rd infiniti, traded in qx4 which we had for 8 years. great design where 2nd row has bench seats for access to 3rd row. even w 3rd row up enough room for a stroller. handles n drives nicely average about 14 mpg in mixed driving. our friends just got a 2007 after seeing ours. we test drove lots of suvs before finding this. my wife loves it so far. owned for 9 months.

10 of 10 people found this review helpful

My lease is expiring- -

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Vehicle: 2006 Infiniti QX56 4dr SUV (5.6L 8cyl 5A)

My lease expires next week so I thought I would summarize the pros and cons of my experience with the QX56. I have had it for over three years and it has almost 45K miles on it. Overall I have enjoyed the power, quiet, and handling. The kids have enjoyed all the leg room, the captain's chairs and DVD in the back. Cargo capacity is great. The biggest problem I have with it is the suspension- -the car booms and shudders with even small potholes. Second biggest problem is occasional glitch with brakes that dealer told me they had never heard of but has happened with other owners. (suddenly makes a loud clunking sound and gets jerky upon rebraking- -must restart car.) Actual mileage: 13.

Great towing - awesome truck

by on
Vehicle: 2006 Infiniti QX56 4dr SUV (5.6L 8cyl 5A)

After researching over a year comparing Navigators, Yukons, Sequoias and others we are VERY happy we chose the QX56. We just returned from Lake Powell towing 10 hours each way, the QX made the trip seem easy. Lots of torque for towing, no problem pulling a 3,000 lb boat up long grades using AC in 115 degree heat. The load leveling worked superb! It's very quiet and comfortable and fun to drive, handles almost as good as my BMW 740. I read a lot of reviews and felt confused by the contrast of those who love and hate this truck - glad we took the chance because we love it. If you tow it is a good choice with load leveling and tow mode shifting.

1 of 1 people found this review helpful


by on
Vehicle: 2006 Infiniti QX56 4dr SUV 4WD (5.6L 8cyl 5A)

I am very unhappy with this car. First the brakes are recalled and then the hatchback broke on the day we needed to pack for camping. The electrical goes out randomly. The car thinks the emergency brake is on when it isn't and it then skids when I come to a stop. I feel very unsafe driving it. I do love how big it is. I do love the DVD for the kids. I love the automatic lift for the hatchback. The navigation screen is totally useless. I love the back up camera. I will not be able to buy another car without it. We are breaking our lease early to get rid of this car.

Qx 56

by on
Vehicle: 2006 Infiniti QX56 4dr SUV 4WD (5.6L 8cyl 5A)

The only problem I see with my qx56 is the wobbly handling when hitting a bump

Talk About The 2006 QX56

2006 Infiniti QX56 Discussions See all Started By

I have 3 infiniti vehicles they all have problems. The worst is QX56 2006 well maintained that failed smog, problem is the 2 cat manifolds which will cost $2,700 to repair, Infiniti consumer affiars r...

My wife looked tonight at 2013 QX56 on line tonight and said it would be cheaper for her to pay the one pay on the 2014 and walk away from the deprecation in 3 years. We had a 2006 QX56 and hammered o...

Hi schmitz1. Not only is there a limited number of 2006 QX56 models left on dealers' lots, Infiniti is no longer providing lease support on the '06 model. If you want to lease one through Infiniti F...

Gas Mileage


  • 12
  • cty
  • 18
  • highway
Calculate Yearly Fuel Costs
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