There are five models in the H 1 series, including two-door and four-door hardtop hatchbacks, four-door hood hatchbacks, four-door and two-door pickup trucks. Its power comes from a 6.5-liter turbocharged diesel engine. It is located in the middle and front of the car body, which makes the weight distribution of the whole car very uniform. The sealed central regulator can keep the pressure balance of the system and protect the main components from pollution. The ventilation hose on each component is collected in the central hose of the air cleaner. This system enables Hummer to drive in water nearly 1 m deep all day, and is not afraid of water, sand and mud. There are five heavy beams on the welded steel frame, which can fully absorb the stress when driving with full load under bad road conditions. This structure gives Hummer unparalleled strength and flexibility. High-load multiple cooling system provides high-quality cooling service for coolant, engine oil, transmission/transfer oil and steering oil, ensuring that these liquids are at normal working temperature, prolonging the life of engine parts, and making the car run safely even under the worst conditions.

Hummer H2. 1999, General Motors obtained the trademark use right and production right of Hummer from AM General Motors. In 2003, General Motors introduced Hummer H2. At the same time, the original Hummer introduced by PeopleSoft Group was renamed Hummer H 1. H2 was designed by General Motors and entrusted to General Motors for production and sales. Different from the design of the previous generation Hummer H 1, the design of Hummer H2 was aimed at general roads from the beginning, which improved the oversized body shape and added comfortable accessories, and was closer to the needs of general users. In 2005, the pickup Hummer H2 SUT and off-road Hummer H2 SUV were launched, which made the product lineup more complete.

Hummer H3. Hummer H3 made its debut at the 97th Greater Los Angeles Auto Show in February 2003. At that time, it was presented to the public as a concept model H3T Concept. From June 5th, 2005 to October, 2005, Hummer H3 went on sale. Unlike H 1 and H2, the design, manufacture and production of H3 vehicles are the responsibility of GM, and only AM General is entrusted with the marketing business. GM has also set up a factory in port elizabeth, South Africa, which produces a diesel version and a right-hand version of H3. At the North American International Auto Show in 2006, GM released the Hummer H3X. At the 2008 Chicago Auto Show, GM released the Hummer pickup H3T.