1st Generation (2003—2009) H2 Problems

H2 owners with a 2003—2009 model year have the most problems with the interior (23%), body (23%), and the hvac (7%). We've listed some of the most recent complaints below. The full list is available on CarComplaints.com.

  1. Low Oil Pressure 1 complaints at an average of 124,274 miles in the 2006 Hummer H2.
  2. Complete Loss of Brakes 1 complaints at an average of 99,975 miles in the 2005 Hummer H2.
  3. Water Gets Into Front Door Jams and Freezes Up 1 complaints at an average of 1,000 miles in the 2004 Hummer H2.

What H2 Year is Most Reliable?

Generations are a good baseline for prediciting reliability, but there will almost always be year-to-year differences. We've calculated a reliability score for each model year within this generation, but we've based that score on how the model year compares to all Hummer model years.

Watch out for the 2004 model year which has the highest PainRank™ score in this generation.

Year Complaints Recalls TSBs PainRank (?)
2009 0 1 651 0.0
2008 1 3 626 0.62
2007 1 2 564 0.7
2006 1 5 520 2.14
2005 1 3 538 1.84
2004 6 4 600 2.43
2003 3 5 609 1.14

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