2007 Hummer H3 fuel/propulsion system problems
11 owner complaints filed with NHTSA name the fuel/propulsion system on the 2007 Hummer H3 — 5% of all complaints for this model year.
What owners report
“I have the well known issue with the passkey security system. Nothing is wrong mechanically with the car but the security system will not allow the truck to start, therefore leaving me randomly leaving me stranded. Much has been documented on this issue, yet gm has never done a recall.”
filed Sep 7, 2022
“I bought my 2007 hummerh3 used w/124,000 miles. I've had it a month and already had it in mechanic shop due to not starting. The mechanic thought it was a fuel relay and charged me 258.00 parts/labor/tow. Today 11-16-21, only a day after I got it back, it stopped on me again!! Just had it towed…”
filed Nov 16, 2021
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other H3 years
| Year | Reports | Share |
|---|---|---|
| 2009 H3 | 1 | 1% |
| 2008 H3 | 4 | 4% |
| 2006 H3 | 8 | 2% |
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.