1st Generation (2002—2006) H1 Problems

This generations ranks 1st out of 4 Hummer generations in reliability and is one of the safer bets out there. Owners have the most complaints about the fuel system (100%), We've listed some of the most recent complaints below, see them all on CarComplaints.com.

  1. Vehicle Died on the Highway 1 complaints at an average of 99,403 miles in the 2002 Hummer H1.
  2. Pmd (Pump Mounted Driver) Failure 1 complaints at an average of 100,000 miles in the 2002 Hummer H1.

What H1 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 2002 model year which has the highest PainRank™ score in this generation.

Year Complaints Recalls TSBs PainRank (?)
2006 0 1 3 0.0
2005 0 0 1 0.0
2004 0 0 1 0.0
2003 0 0 15 0.0
2002 2 0 0 0.71

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