The Hummer H3 is a mid-size SUV that was produced by General Motors from 2005 to 2010. During its production run, there were no distinct generations of the Hummer H3. However, there were some updates and changes made to the vehicle over the years. Here is a brief overview of the key updates.
First Generation Hummer H3 (2005 – 2007: Initial Release)
The Hummer H3 was introduced as a 2006 model year vehicle in 2005. It was the smallest of the Hummer models, but it had a truck version called the H3T in the model years of 2009 and 2010 that was meant to compete with trucks like the Chevy Colorado and GMC Canyon. The H3 featured a 3.5-liter straight-five-cylinder engine that produced 220 horsepower and 225 lb-ft of torque. However, by 2007, they replaced the 3.5-liter engine with a 3.7-liter engine that produced 242 horsepower and 242 lb-ft of torque. The H3 came with either a five-speed manual or four-speed automatic transmission. It also came with 4WD and optional front and rear locking differentials for off-roading adventures. The Adventure Package also gave more options to help with climbing and off-roading. The Hummer could tow up to 3,000 lbs. with the 5-speed manual transmission or 4,500 lbs. with the 5-speed automatic transmission.
Though the H3 and H3T were not as fancy as the H1 or H2, the H3 and H3T still had impressive features. They came with quality cloth upholstery, leather-wrapped steering wheel, CD player, six-speaker audio system, powered windows, keyless entry, and air conditioning. However, some H3 and H3T models could come with GPS navigation, auxiliary audio input, Sirius XM radio, remote car start, leather seats, heated front seats, dual-climate zone, and Bluetooth phone system.
Second Generation Hummer H3 (2008–2010: Engine Upgrade)
In 2008, the H3 received a significant upgrade with the introduction of a powerful 5.3-liter V8 engine that produced 300 horsepower and 320 lb-ft. of torque; however, this engine was only available with an automatic transmission and came with the Alpha trim of the H3. The upgraded engine produced more horsepower and torque compared to the earlier version. As such, the V8 engine could tow an extra 1,500 lbs. on top of the original V5 engine with a max capacity of 6,000lbs. Additionally, some minor changes were made to the interior and exterior styling of the vehicle during this period.
Even though the Hummer H3 doesn’t have official generations, changes to the engine and minor changes with the exterior and interior were released throughout its production. These changes often included unique features or cosmetic enhancements, but they did not significantly alter the overall design or performance of the vehicle.