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Fuel systemPart report

2006 Hummer H3 Fuel system Problems

Complaints
10about this part
Share
3%of 361 total for the year
Median mileage
80,225miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 10 complaints about the fuel system of the 2006 Hummer H3, 3% of the 361 complaints for this model year. Where a mileage was given, the median is 80,225 miles.

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.

“I bought this H3 Hummer used and it ran good until last year. It would not start at different times but after you waited 10 minutes, it would start. We just paid 1300.00 to have the fuel pump replaced last week. Now it won't start again. I have seen many complaints on this and there should be a recall on this problem.”

NHTSA complaint #11208832, filed 2019-05, 173,000 miles

“Gm has a security system called passlock that over time seems to fail and trips a failure and flashes a key symbol on the dash and disables starting your vehicle until it resets 10 minutes later. This occurs to my wife almsot 50% of the time she tries to start her vehicle. So far GM has come forward with a fix yet I've seen posts on Hummer forumns from hundreds of owners. This has many safety concerns as well as just being a general annoyance: 1) in las vegas we routinely see tempatures over 110f. …”

NHTSA complaint #10746867, filed 2015-08, 60,000 miles

“The H3 will not start. Dash screen keeps showing the passlock activated and won't turn off. Computer thinks the H3 is being stolen. I have tried to reset and no luck. I had this problem about 4 weeks ago and changed the fuel pump. Then it happened again last week and now on 28 march 2020. Engine is turning over and electrical systems light up, but sounds like fuel is not getting into the fuel pump again. After doing some research, finding others having the same problem. Recommended procedure is to wait 10 min, still no luck. Waiting 15 min seemed to work before, but now it doesn't. …”

NHTSA complaint #11319662, filed 2020-03, 200,000 miles

“I have a 2006 Hummer H3, every 2 or 3 days the motor will turn over ,but will not start. I let it sit for 5 minutes and it will start right up. I've taken it into the dealer twice for this problem and they can't find anything wrong with it.”

NHTSA complaint #10394066, filed 2011-04, 80,225 miles

“I have two 2006 H3 hummers both with the 5 speed manual transmission. Upon acceleration from a stopped position in first gear, depressing the clutch for the shift into 2nd gear the engine rpms revs to about 4000 and stays there. Shifting into 2nd gear & releasing the clutch the rpms drop back down. Accelerating to about 3000-3500 rpms, depressing the clutch, again the rpms climb to around 4000 and stays there. The same thing occurs during up shifts ... This has happened no less than 7 times on one H3 and 5 times on the other H3. …”

NHTSA complaint #10183117, filed 2007-02, 2,750 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
200923%
200844%
2007125%
2006103%

Other parts of the 2006 Hummer H3

Electrical system
96 complaintsVisibility (wipers, defrost, mirrors)
59 complaintsEngine
52 complaintsBody and structure
36 complaintsEngine cooling
35 complaintsOther or unknown
29 complaintsSuspension
29 complaintsAir bags
20 complaintsBrakes
20 complaintsTransmission and drivetrain
20 complaintsLatches, locks and linkages
11 complaintsSteering
11 complaints

← All problems reported for the 2006 Hummer H3

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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