Hummer (stylized as HUMMER) is a brand of trucks and SUVs, first marketed in 1992 when AM General began selling a civilian version of the M998 Humvee.In 1998, General Motors (GM) purchased the brand name from AM General and marketed three vehicles: the original Hummer H1, based on the military Humvee, as well as the new H2 and H3 models that were based on smaller, civilian-market GM platforms.

By 2008, Hummer's viability in the economic downturn was being questioned, and it was placed under review by GM management. Rather than being transferred to the Motors Liquidation Company as part of the GM bankruptcy in 2009, the brand was retained by GM, in order to investigate its sale.