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Hummer H3Model year report

2010 Hummer H3 Problems

Complaints
7filed with NHTSA
Median mileage
60,000miles, 5 complaints with mileage
Recalls
2campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA crash rating
—overall rating starts with 2011 models
EPA fuel economy
15 mpgcombined, 3.7L 5-cyl 4WD · 14 city / 18 hwy

Sources: NHTSA records for the 2010 Hummer H3 (complaints, recalls, investigations), NHTSA crash tests, EPA fuel economy. Report an error

NHTSA recorded 7 consumer complaints for the 2010 Hummer H3. The part named most often is electrical system, with 4 complaints (57% of the total), followed by engine (1) and body and structure (1). 5 of the complaints include a mileage, and 40% of those were filed for vehicles with under 50,000 miles; the median is 60,000 miles. Of all complaints, 1 a fire, according to the filers. NHTSA lists 2 recall campaigns and 1,063 technical service bulletins for this model year. Electrical system complaints overlap with 206 technical service bulletins filed under the same part. Engine complaints overlap with 76 technical service bulletins filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

Electrical system: “I was driving home and the fan on the A/C stopped working. Shortly afterward I detected a burning odor. I ended up replacing the resistor and wiring harness for the A/C blower motor. The resistor was burnt and the harness wire was slightly melted. I am concerned about the potential for a fire if this happens again.”

NHTSA complaint #10522410, filed 2013-06, 80,300 miles

Engine: “While I was on the road going home I noticed that my temperature was slowly rising then all of a sudden my engine room was smoking I pulled aside and looked at the engine room the smoke was caused by the radiator leaking on front top cover of radiator was cracked... …”

NHTSA complaint #10679360, filed 2015-01, 60,000 miles

Body and structure: “Sun glare reflects off the chrome part placed on the engine hood and quickly blinds the driver for short periods of time causing very dangerous road driving conditions.”

NHTSA complaint #10348480, filed 2010-08

Transmission and drivetrain: “My transfer case established a large fluid leak so I inspected it, the findings was a large hole in the main housing on the transfer case fluid was leaking out. The transfer case was removed and disassembled, and found that the 2 screws that hold the chain guide to the housing had backed out or fell out and let the chain guide fall down in to the gear mechanism and ground it up and broke the main case. In result was the quarter size hole in the housing of the transfer case allowing liquid to escape and damage the housing. Leaving me without a vehicle.”

NHTSA complaint #11575109, filed 2024-03

Mileage when problems were reported

40% of the 5 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 30,450 and 80,300 miles.

20%0–100%10–2520%25–5020%50–7520%75–10020%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (5 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 60,000 miles.

Complaints by year filed

Fewer than 15 complaints, too few for a reliable trend.

2010201320152201820192024
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Crash test ratings

NHTSA's 5-Star Safety Ratings for the 2010 Hummer H3. Frontal results are shown driver / passenger; rollover shows the star rating and NHTSA's estimated risk of rolling over in a single-vehicle crash.

VersionOverallFrontalSideSide poleRollover
H3 · sedan AWDnot rated5 / 4——3 · 24.6% risk

Ratings before the 2011 model year come from an older, less demanding test and are not comparable with ratings for 2011 and later.

Source: NHTSA New Car Assessment Program (5-Star Safety Ratings), nhtsa.gov/ratings.

Fuel economy and running cost

EPA ratings for each 2010 Hummer H3 version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).

VersionEngineTransmissionCityHwyComb.Fuel / yr
H3 4WD3.7L 5-cyl4-speed automatic141816$4,200
H3 4WD3.7L 5-cyl5-speed manual141815$4,450
H3 4WD5.3L 8-cyl · flex-fuel4-speed automatic131614$4,800

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

Recall details for the 2010 Hummer H3 → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 1,063 on record; the latest 10 are shown.

See all 1,063 bulletins →

Other model years of the Hummer H3

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
2010760,0002—15—Not enough data
20096974,5502—16Not compared (fewer than 3 comparable model years)Falling
200811377,0792—15Not compared (fewer than 3 comparable model years)Falling
200723884,9082—15Not compared (before 2008)Falling
200636175,0004—16Not compared (before 2008)Stable

All Hummer H3 model years · Best and worst years by complaints

Frequently asked questions

How many NHTSA complaints does the 2010 Hummer H3 have?

NHTSA recorded 7 consumer complaints for the 2010 Hummer H3 as of Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2010 Hummer H3 is reported most often?

Electrical system is named most often, in 4 complaints (57% of the total), followed by engine with 1.

Has the 2010 Hummer H3 been recalled?

NHTSA lists 2 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2010 Hummer H3 get?

The EPA rates the 2010 Hummer H3 (H3 4WD, 3.7L 5-cyl) at 15 mpg combined, 14 city and 18 highway, with an estimated annual fuel cost of $4,450 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2010 Hummer H3 reported?

Among the 5 complaints that include a mileage, the median is 60,000 miles and the middle half falls between 30,450 and 80,300 miles; 40% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Crash ratings are from NHTSA’s New Car Assessment Program. Fuel economy is from the EPA and DOE (fueleconomy.gov).

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.