Hummer electrical problems

I've had plenty of Hummer in the bay over the years, and the electrical-system complaints on these don't surprise me. 265 on the NHTSA record across 7 model-year entries (2005–2010) is not a fluke. The 2006 Hummer H3 is carrying most of the weight on this category — about 34% of every electrical-system complaint filed against Hummer comes from that one truck. The pattern shows up across the lineup, but that year-model is where it concentrates. 43 fire reports on the federal record — not common in this category but documented and worth weight. Average shop fix runs about $850 — not catastrophic, but it adds up over time. Across the 217 complaints reporting odometer mileage, the median failure lands at about 83,720 miles. Read the specific complaints before assuming the worst — the category covers everything from a forty-dollar switch to a twenty-five-hundred-dollar module.