Yeah, there's a lot of old AMC Jeep heritage tied up in the Hummer.
It even inspired a lawsuit between
Daimler-Chrysler and GM in 2001. DC claimed that the H2's 7-slot vertical grille belonged to the Jeep brand and trademark. The courts disagreed, saving GM from changing the grille or licensing it from DC.
The reasoning?
1) Grille shape isn't the only defining factor of a vehicle brand.
2) Even if it were, not all Jeeps carried a 7-slot grille (and not always vertically).
3) And most importantly, GM's "Hummer" licensing agreement with AMGeneral included the specific brand trademark of the H1's 7-slot grille, which in turn had gone unchallenged by DC since 1985, when the original HMMWV was approved for sale to the military.