The 1st generation of the H3 has a cumulative PainRank™ of 11.56. That can be compared against other Hummer generations. Shopping for a Hummer? You should probably steer clear of this generation.
Owners of the 2006–2010 H3 model years have sent in 134 complaints on CarComplaints.com. We've listed the three most common below. Most are about the engine (33%) followed by the electrical (14%) and the cooling system (11%).