2006 HUMMER H1

  • 2006 HUMMER H1 Alpha Crew Cab Pickup

    Alpha Crew Cab Pickup

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      6.6L V8
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  • 2006 HUMMER H1 Alpha Utility

    Alpha Utility

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    • ENGINE
      6.6L V8
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2006 HUMMER H1 Review

The perfect vehicle for someone who wants an SUV solely dedicated to off-roading.

Reviewed by Automotive on


The 2006 Hummer H1 shows improvements to the original Hummer, which first became available for sale to civilian consumers in 1992, after enjoying years of serving the U.S. military as a High Mobility Multipurpose Wheeled Vehicle, or ?Humvee.? GMC thought that consumers would be interested in owning a unique car that enjoyed coverage by the press during the Gulf War and could dominate almost any outdoor terrain. The company took the military vehicle and modified it to make it more civilian-friendly. Minor alterations had been made, but the most notable improvements came in 2004, when the sport utility vehicle (SUV) got updated seats and redesigned consoles.

The Range

Body Styles: SUV
Engines: 6.6-liter V-8
Transmissions: five-speed automatic
Models: H1 Open Top, H1 Wagon

What's New

The 2006 Hummer H1 receives a number of upgrades. The most notable upgrade applies to the drivetrain. The engine changes to a new 6.6-liter, turbo-diesel V-8 that gets 300 horsepower and 520 lb-ft of torque, gaining 95 horses and 80 lb-ft of torque over previous engines. The diesel engine gets better fuel economy than the 2005 engine, and the transmission upgrades from a four-speed to a five-speed automatic. The new transmission gets better low-speed crawl ratio and a higher maximum towing capacity. The 2006 model also has stronger half shafts, bigger brakes, and a new design for the geared hubs to make slowing down and stopping smoother.


Standard exterior equipment on the 2006 Hummer H1 includes 17-inch wheels with run-flat two-piece aluminum tires, and dual bead locks. It also includes intermittent windshield wipers, rear liftgate door, and a trailer hitch. You can get the optional Off-Road Adventure Package which includes front and rear Eaton E-Locker differential locks and a 12,000 pound winch. The open top model includes a removable softtop.

From the outside, the 2006 Hummer H1 looks like a massive metal box, yet it retains a certain sense of style. The exterior remains true to its military heritage with the slotted grille, flat windshield, and grated hood. It measures very wide, which intimidates some people when trying to park. The extra-large outside mirrors make maneuvering this car a little easier when negotiating space.


Standard features for the 2006 Hummer H1 include heated, eight-way adjustable, leather captain’s chairs for the driver and front passenger; power windows; keyless entry; power steering; air-conditioning; cruise control; alloy trim on the center console; alloy and leather trim on the dashboard; a leather steering wheel; and an eight-speaker, six-CD audio system.

The Hummer H1 seats four passengers and only comes in one model with two versions: the open top and the wagon. The seats feel comfortable for the average-size or small adult, but rear passenger legroom remains surprisingly cramped for such a large vehicle. It has a 16-inch ground clearance and small doors, making entry and exit difficult for people of shorter stature or with physical limitations. Once you enter the car, you will notice that the interior does not seem as wide as the exterior suggests. The inefficient use of interior space limits seating to four people with no room to spread out. With the drivetrain placed high along the vehicle’s spine, legroom, hip room, and shoulder room are reduced. The front passenger has even less room in the foot well area.

The gauges look round and plain, but easy to read. The center stack has a simple design and the knobs and switches seem large and awkward, but easy to reach and understand. The steering wheel is thick and all of the handles and levers feel chunky and solid.

Performance & Handling

The 2006 Hummer H1 contains a 6.6-liter, V-8, Duramax turbo-diesel engine that gets 300 horsepower and 520 lb-ft of torque. The only transmission available remains the five-speed automatic. It has geared hubs, limited slip front and rear differentials, and you can get the optional electronic differential to give the H1 a high degree of slow-speed rock-climbing ability. The open top model has a maximum towing capacity of 9300 pounds and it takes 13.5 seconds to accelerate from zero to 60 mph.

This car has poor handling and mushy steering for driving at high speeds; it seems to plod forward as you drive. At slower speeds, the steering feels a bit more responsive than at higher speeds. On offroad terrain, this car shines. With a 16-inch ground clearance, there isn’t much that this car cannot conquer in the rougher paths. The cabin does not have good insulation, resulting in road and tire noise inside the cabin.


Standard safety equipment for the 2006 Hummer H1 includes anti-lock brakes and a tire pressure monitoring system. It offers no airbags, and no government crash testing has been completed.

EPA Fuel Economy

H1 Open Top: 9/12 mpg city/highway
H1 Wagon: 9/12 mpg city/highway

You'll Like

  • Superior offroad performance
  • Unique exterior styling

You Won't Like

  • Poor street driving performance
  • Very poor fuel economy
  • Only seats four people
  • No airbags available for either model
  • Cramped passenger room
  • Very pricey for the number of standard features
  • Small cargo capacity for its size

Sum Up

The perfect vehicle for someone who wants an SUV solely dedicated to off-roading.

If You Like This Vehicle

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