2007 Hummer H3 power train problems
19 owner complaints filed with NHTSA name the power train on the 2007 Hummer H3 — 8% of all complaints for this model year.
What owners report
“Tl* the contact owns a 2007 hummer h3. The contact stated that while driving, the power reduction and stability control warning lights illuminated. The vehicle decelerated independently. The vehicle was pulled over and restarted. The failure recurred. The vehicle was taken to jim glover chevrolet…”
filed Jun 3, 2020
“Tl* the contact owns a 2007 hummer h3. While making a right turn at 35 mph the steering wheel became difficult to maneuver without warning. The contact pulled over and discovered that the power steering fluid cap failed to remain secure and caused the power steering fluid to spew out. The cap was…”
filed Mar 2, 2017
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other H3 years
| Year | Reports | Share |
|---|---|---|
| 2009 H3 | 2 | 3% |
| 2008 H3 | 1 | 1% |
| 2006 H3 | 20 | 6% |
Other reported problem areas on the 2007 Hummer H3
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.