2008 Hummer H2 Electrical system Problems
- Complaints
- 2about this part
- Share
- 29%of 7 total for the year
- Median mileage
- 72,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the electrical system of the 2008 Hummer H2, 29% of the 7 complaints for this model year. Where a mileage was given, the median is 72,000 miles. 2 recall campaigns on record are filed under a similar system.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Tl * the contact owns a 2008 Hummer H2. The contact stated that the front drivers side and the rear drivers side power windows failed. The contact mentioned that when attempting to open the rear passenger window, the glass fell into the door panel. In addition, the front drivers side door glass fell into the door panel several days after the initial failure. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 72,000.”
NHTSA complaint #10618609, filed 2014-08, 72,000 milesRelated recalls
- 10V240000Jun 4, 2010Gm is recalling certain model year 2006-2009 buick, lucerne; cadillac dts; hummer h2; model year 2008-2009 buick enclave; cadillac cts; model year 2007-2009…Covers: Hummer H2 2006–2009, Buick Lucerne 2006–2009, Cadillac DTS 2006–2009 +15 more
- 08V441000Aug 28, 2008Gm is recalling 857,735 my 2006-2008 buick lucerne; cadillac dts; hummer h2; my 2007-2008 cadillac escalade, escalade esv, escalade ext; chevrolet avalanche…Covers: Hummer H2 2006–2008, Buick Lucerne 2006–2008, Cadillac DTS 2006–2008 +13 more
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Electrical system: other model years
Other parts of the 2008 Hummer H2
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsAir bags
1 complaintsBrakes
1 complaintsFuel system
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2008 Hummer H2
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology