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Transmission and drivetrainPart report

2008 Hummer H3 Transmission and drivetrain Problems

Complaints
1about this part
Share
1%of 113 total for the year
Median mileage
150,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the transmission and drivetrain of the 2008 Hummer H3, 1% of the 113 complaints for this model year. Where a mileage was given, the median is 150,000 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.

“The contact owns a 2008 Hummer H3. While driving 65 MPH and approaching an intersection, another vehicle did not stop and caused the contact to slam on the brake pedal. As a result, the emergency brake springs dislodged from the mount and the driveshaft dislodged from the transmission. The driver's side tire was damaged due to the failures. The axle was not bent. The vehicle was towed by an independent mechanic to the contact's residence. The dealer and manufacturer were not contacted. The vehicle was not diagnosed or repaired. The failure mileage was approximately 150,000.”

NHTSA complaint #11253131, filed 2019-09, 150,000 miles

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
2010114%
200923%
200811%
2007198%
2006206%

Other parts of the 2008 Hummer H3

Electrical system
34 complaints
Visibility (wipers, defrost, mirrors)
27 complaints
Engine
18 complaints
Air bags
17 complaints
Other or unknown
9 complaints
Body and structure
8 complaints
Steering
5 complaints
Brakes
4 complaints
Engine cooling
4 complaints
Equipment
4 complaints
Fuel system
4 complaints
Suspension
4 complaints

← All problems reported for the 2008 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