2007 HUMMER H3 SUV Review | Edmunds.com


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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.
HUMMER H3 Features and Specs

Features & Specs

  • Engine 3.7 L Inline 5-cylinder
  • Drivetrain Four Wheel Drive
  • Transmission 5-speed Manual
  • Horse Power 242 hp @ 5600 rpm
  • Fuel Economy 14/18 mpg
  • Bluetooth No
  • Navigation No
  • Heated Seats Yes

Review of the 2007 HUMMER H3

  • Though it possesses an attractive combination of off-road capability and everyday comfort, the distinctive 2007 Hummer H3 is mainly let down by its lack of power.

  • Safety
  • Pros

    Very capable off-road, smooth highway ride, stable handling, stylish interior with simple controls, comfortable seats.

  • Cons

    Tepid performance, low tow rating, lousy outward visibility for shorter drivers, below-average cargo space.

  • What's New for 2007

    The Hummer H3 sees both aesthetic and functional changes for 2007. A new "H3X" trim level includes chrome accents (including front brush guard and wheels), embroidered headrests and unique colors. Stability control becomes standard, the engine becomes more powerful and the powertrain warranty is extended to five years/100,000 miles.

Full 2007 HUMMER H3 Review

What's New for 2007

The Hummer H3 sees both aesthetic and functional changes for 2007. A new "H3X" trim level includes chrome accents (including front brush guard and wheels), embroidered headrests and unique colors. Stability control becomes standard, the engine becomes more powerful and the powertrain warranty is extended to five years/100,000 miles.


Trading on the tough truck styling cues of its much larger H2 brother, the 2007 Hummer H3 is a lot more reasonable in terms of size and cost. Based loosely on the midsize Chevrolet Colorado/GMC Canyon pickup platform, the H3 is more suited to tackling narrower trails than the broad-of-beam brutish H2.

Although it shares only about 15 percent of its components with the Colorado/Canyon, the H3 does have the same five-cylinder engine. This year sees a sorely needed boost in output, with horsepower increasing by 22 to 242 hp and torque increasing by 17 pound-feet, for a total of 242 lb-ft. Still, with a weight of 4,700 pounds, the portly H3 could really use a more powerful V6 or even a V8. As it stands, the H3 is downright sluggish compared to rivals such as the Nissan Xterra, Toyota FJ Cruiser and Jeep Grand Cherokee V8.

Although it may not be speedy, the 2007 Hummer H3 is not without its charms. Full-time four-wheel drive is standard with a two-speed transfer case. Available for hard-core off-roaders is an optional 4:1 low-range that allows the junior Hummer to creep down seriously steep trails without using the brakes. Lots of ground clearance, aggressive approach and departure angles, standard skid plates and optional 33-inch off-road tires further emphasize the H3's go-anywhere demeanor. Although outward visibility is compromised for style, the H3 seats five in relative comfort.

Logic would dictate that most of the H3's rivals are better choices due to their stronger performance, better fuel mileage, more generous cargo capacity and greater features availability. But the car-buying process has a heavy element of emotion as well. For those seeking a vehicle with impressive off-road capability and the image that only a Hummer can provide, the H3 is a solid choice.

Body Styles, Trim Levels, and Options

The 2007 Hummer H3 is a midsize SUV that's available in two trim levels. The standard H3 comes with air-conditioning, cruise control, OnStar telematics, keyless entry, full power accessories, a six-speaker CD stereo, 16-inch alloy wheels and full skid plates. The fancier H3X adds a Monsoon audio system with CD changer, leather seating, power and heated front seats, a host of chrome accents and 18-inch chrome wheels. There is also a pair of packages available for the base H3. The Adventure package adds an off-road suspension, a shorter-geared transfer case for better hill climbing and descending, a locking rear differential and 33-inch off-road tires. The Luxury Package adds leather upholstery, power/heated front seats and an MP3-compatible Monsoon stereo. Individual options include an in-dash six-disc CD changer, a navigation system and satellite radio.

Powertrains and Performance

A 3.7-liter inline five-cylinder engine that makes 242 hp and 242 lb-ft of torque is the sole power plant for the H3. It sends its power to all four wheels via a standard five-speed manual transmission or optional four-speed automatic. Although that output is respectable for a five-cylinder, the H3's near-5,000-pound mass takes its toll on performance, so acceleration is leisurely at best. Towing capacity is rated at 4,500 pounds and EPA fuel economy estimates for the automatic are 16 mpg city, 19 mpg highway.


Antilock disc brakes, traction control, stability control, a tire-pressure monitor and the OnStar communications system are standard. Full-length side curtain airbags are optional. In NHTSA crash tests, the 2007 Hummer H3 scored five stars (out of five) for the driver and four stars for the front passenger in frontal impacts. Side impact testing by that agency resulted in five stars (without the side curtain airbags).

Interior Design and Special Features

Surprisingly, the Hummer H3 has one of the best layouts we've seen in a GM vehicle. A two-tone color scheme, metallic accents and contrasting piping on the optional leather seats give the H3's cabin more than a dash of class. The materials quality is respectable as well, unlike the tacky plastic environs of the Chevy Colorado on which the H3 is loosely based. Seat comfort is very good, but shorter drivers may not care for the seating position that, due to the high beltline and low-profile window design, doesn't offer the commanding view of the road they might expect from an SUV. Rear-seat passengers will find ample legroom and decent support. Cargo capacity is below average for this class, but a side-hinged cargo door provides easy access to the 29.5-cubic-foot bay (55.7 with the seats folded).

Driving Impressions

At low speeds, there is sufficient punch to handle the cut and thrust of city driving. But when faced with freeway merging and inclines, the H3 grows winded, a product of insufficient power for its 4,700 pounds and brick-like aerodynamics. Off-road, the smallest Hummer SUV is basically unstoppable. With 9.1 inches of ground clearance, loads of wheel travel, aggressive approach and departure angles, oversized all-terrain tires and standard skid plates, the H3 can pretty much go anywhere without taking damage. The baby Hummer also does fine on the blacktop. While there's no hiding its considerable curb weight in the corners, it feels surprisingly stable, with predictable body roll. The ride is smooth and comfortable, making this tough truck ideal for active families who indulge in the occasional road trip. The vehicle's small windows, however, do make outward visibility difficult.

What Others Are Saying

Customer Reviews

Love it! but lots of

by on
Vehicle: 2007 HUMMER H3 H3X 4dr SUV 4WD (3.7L 5cyl 5M)

I bought my 2007 hummer h3 2 years ago and I honestly love it, however I have spent $4,000 for a transmission rebuild..shocks..2 radiators..water pump..etc. (it's an automatic) It is paid for and I'm keeping it because I really love the style and it's a classy off road SUV!! I just wish it was more reliable!!

1 of 1 people found this review helpful

Blast to drive

by on
Vehicle: 2007 HUMMER H3 4dr SUV 4WD (3.7L 5cyl 5M)

I bought my 2007 in 2010 after me and my girlfriend broke up! Nice consolation! This has been a fantastic truck, it's rugged stylish and just an American bad ass truck! I've had a few minor problems, mostly electrical. Drivers window control failed, radiator had to be replaced, all under extended warranty. Over all Great vehicle, will probably be buried in it lol.

8 of 8 people found this review helpful

I love my h3

by on
Vehicle: 2007 HUMMER H3 4dr SUV 4WD (3.7L 5cyl 5M)

I bought my H3 a few months ago, and i love it. All i want to do is drive! It's sleek and rugged at the same time. I believe it will be a collectors car some day. I traded my 07 Mustang GT and have had no regrets. The car was too small, and sucked in the winter. The H3 can drive anywhere. I mean anywhere. It has plenty of room for my wife, kids and dog. It's great to take on long trips. The gas milage isn't great, but it's the same as a lot of the minivans. But it's a Hummer. It's much cooler. Clearly. If you are thinking about buying an H3, just do it already. You will love it!

I traded my vette for

by on
Vehicle: 2007 HUMMER H3 H3X 4dr SUV 4WD (3.7L 5cyl 5M)

I loved my little red '87 Corvette, but when I happened to test drive the H3X, I had no problem trading it in. My Hummer is just as exciting as the vette,just in a different way. I'm safe, comfortable, and still stylish. I can go to the hunting camp and cover it with mud, take it to the car wash and still take the Mrs. to a fancy restaurant that evening. It is the ultimate boy toy. Ladies, there are a lot of H3's coming back on the market from leases at real steals. Christmas is coming. You want to get him something he'll really like?

Great woods truck

by on
Vehicle: 2007 HUMMER H3 H3X 4dr SUV 4WD (3.7L 5cyl 5M)

I have owned teo and still have one fuel awful with a average hwy of 15 mpg will go any place you put it. I pulled a 75k tractor trailer without a wheel spin and have the video to back it. You can accessorize to your hearts content. Not made for speed but will go when you have to.

Hummers rule

by on
Vehicle: 2007 HUMMER H3 H3X 4dr SUV 4WD (3.7L 5cyl 5M)

This is my 2nd hummer h3. I am now on my 2nd H3 and I have an H3x now and let me tell you this thing is decked out. Tan leather interior, dvd headrest gps Got rid of monsoon system (updated and put new speakers in the doors and even added subwoofers)adding 26s for the warm months next year. I always loved the Hummer line in general and I could not afford the H1 and H2's so the 3 was the best option. I live in Ohio where the winter months has been horrible the last couple of years but my H3 never fails me! I even have friends calling to borrow it or can they pay me to be a taxi for them. Upset GM is taking them away but luckily I have mine already! Will keep for a few years then upgrade to H2

Talk About The 2007 H3

2007 HUMMER H3 Discussions See all Started By

I have a two week old Hummer H3. I took it in to the dealer this past Monday because I noticed that when I'm driving at 45mph the steering wheel shakes like the front wheels are out of round. The deal...

have 2007 H3 purchased new in august now has 4800 mi. have had 4 dead batteries and rwice towed to GM dealer. the last time it would not start was 15 minutes afterthe dealer test drove it with a n...

Looking to sell my 2007 Hummer H3 and get a more efficient SUV for my wife. I need more cargo space than the 29.5/55.7 cu ft space of the H3....

Gas Mileage


  • 14
  • cty
  • 18
  • highway
Calculate Yearly Fuel Costs
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