The Hummer H2 was produced from 2002 to 2009 under General Motors' Hummer brand. It was assembled by AM General in Mishawaka, Indiana, and was built on GM's heavy-duty full-size truck platform, sharing much of its underlying structure with the 2500-series pickups of the era.

The H2 was known for its rugged, truck-based construction and boxy off-road styling. Under the hood, early models used the Vortec 6000 6.0L V8, produced through 2007, while later models switched to a 6.2L V8 for the 2008 and 2009 model years. Power was routed through a heavy-duty automatic transmission and a two-speed transfer case, giving the H2 genuine off-road capability alongside its size and weight.

The manuals available on this page cover the GM V8 engines used in the H2, along with drivetrain components, the transfer case, and electrical systems and wiring diagrams. Typical coverage includes engine rebuild procedures, transmission service, torque specifications, diagnostic routines, and scheduled maintenance intervals specific to this platform.

Because the H2 shares major components with GM's full-size trucks of the same period, these manuals also help owners cross-reference parts and procedures with the broader GM truck lineup, which can be useful when sourcing replacement components or comparing repair steps. These manuals are useful for DIY owners maintaining their own H2, independent garages that service GM truck-based SUVs, and restorers or workshops working to keep these vehicles running reliably years after production ended.