2006 Hummer H3 Transmission and drivetrain Problems
- Complaints
- 20about this part
- Share
- 6%of 361 total for the year
- Median mileage
- 60,000miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 20 complaints about the transmission and drivetrain of the 2006 Hummer H3, 6% of the 361 complaints for this model year. Where a mileage was given, the median is 60,000 miles. 1 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I have a 2006 Hummer H3 with app. 79,000 miles on it.. I was driving to work on the highway and halfway there, I started to get a really bad vibration and loud humming noise coming from the driveline. It starts at about 40 MPH and comes and goes every few seconds. Its worse when I hit the gas pedal.. The universal joints have already been replaced due to cracked universal joints for some odd reason.. The top end of the engine had just been rebuilt 2 weeks ago as well due to sticking exhaust valves. This truck is babied and has never been off- road. Mainly highway miles only.. …”
NHTSA complaint #10369837, filed 2010-12, 79,021 miles“Purchased a 2006 Hummer H3 from the seller in this complaint. I paid exactly $23,250 all cash for this vehicle. He actually drove the vehicle to new jersey from mass. To my residence. The vehicle appeared to be in excellent condition, as it only had 14k miles when I bought it only 3-month's ago. One would hardly think of hidden issues at that mileage. In any event, I have had repairs to the rear and front differential, as it had a leak and the front end was out of alignment. The most disturbing thing was this seller lied to me and misrepresented the true or actual condition of the vehicle. …”
NHTSA complaint #10245631, filed 2008-10, 14,916 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“Dt: the contact states while driving the front differential ring gear fell apart. The manufacturer was contacted. They repaired the vehicle and have now voided the vehicle warranty.”
NHTSA complaint #10142704, filed 2005-11, 2,150 miles“My vehicle will not start followed by a 10 minute lockout period. This happens every few days. Once the vehicle sits for 10 minuted it will start. This happens regardless of wether conditions, will persist intermittently anytime of day; does not have anything to due with key fob or how I enter the vehicle.”
NHTSA complaint #10896772, filed 2016-08Related service bulletins
- 11001321May 16, 2024This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10245395Nov 6, 2023This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing…
- 10234619Apr 6, 2023This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
- 10222770Sep 16, 2022This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.
- 10224273Sep 1, 2022This Preliminary Information communication provides information to the technician to not remove the torque converter bolts and start the engine as this may cause damage to the…
- 10200152Jun 7, 2021This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
- 10194079Apr 30, 2021This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and…
- 10191207Mar 11, 2021This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and…
- 10183782Oct 23, 2020The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other…
Transmission and drivetrain: other model years
Other parts of the 2006 Hummer H3
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 complaintsLatches, locks and linkages
11 complaintsSteering
11 complaintsFuel system
10 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