NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
20 reportsClear category filter79,021 miles · Dec 9, 2010
Power Train
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 AL…
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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.. I JUST HAD IT ALIGNED. ALL THE FLUID LEVELS ARE CORRECT. ALL THE DRIVESHAFTS ARE TIGHT AND NOTHING SEEMS TO BE LOOSE.. NO MODIFICATIONS HAVE BEEN DONE TO IT.. VERY UNSAFE TO DRIVE BECAUSE SOMETHING COULD LOCK UP AND MAKE YOU LOSE CONTROL OF VEHICLE.. THIS WILL BE THE 6TH TIME I'VE HAD IT IN THE SHOP FOR PROBLEMS... *TR
NHTSA ODI #10369837
21,000 miles · Sep 15, 2010
Power Train
TL* THE CONTACT OWNED A 2006 HUMMER H3. WHILE DRIVING 15-20 MPH THE FRONT DRIVE SHAFT BROKE. HE COASTED TO THE SIDE OF THE ROAD. THE VEHICLE WAS TOWED TO AN AUTHORIZED DEALER. HE STATED THE DEALER ADVISED HIM THAT THE FRONT DRIVE SHAFT NEEDED REPLACING. THE DEALER REFUSED TO REPAIR THE VEHICLE BECAUSE OF THE NUMBER OF TIMES THE …
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TL* THE CONTACT OWNED A 2006 HUMMER H3. WHILE DRIVING 15-20 MPH THE FRONT DRIVE SHAFT BROKE. HE COASTED TO THE SIDE OF THE ROAD. THE VEHICLE WAS TOWED TO AN AUTHORIZED DEALER. HE STATED THE DEALER ADVISED HIM THAT THE FRONT DRIVE SHAFT NEEDED REPLACING. THE DEALER REFUSED TO REPAIR THE VEHICLE BECAUSE OF THE NUMBER OF TIMES THE VEHICLE HAD COME IN FOR THIS FAILURE. THE CONTACT STATED HE NO LONGER OWNS THE VEHICLE BUT FEELS ITS UNSAFE TO BE ON THE ROAD. THE FAILURE MILEAGE WAS 21,000 THE CURRENT MILEAGE WAS UNKNOWN.
NHTSA ODI #10355790
90,000 miles · Jul 19, 2010
Power Train
TL*THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT WAS DRIVING APPROXIMATELY 5 MPH WITH THE "FOUR WHEEL HIGH LOCK" IN ACTIVATION. WHEN APPROACHING A TURN, THE FRONT WHEELS BEGAN TO SQUEAL. THE READING ON THE INSTRUMENT PANEL DISPLAYED THE FOUR WHEEL HIGH RANGE AND NO INDICATION OF THE LOCK BEING ENGAGED. THE FAILURE OCCURRED WHE…
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TL*THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT WAS DRIVING APPROXIMATELY 5 MPH WITH THE "FOUR WHEEL HIGH LOCK" IN ACTIVATION. WHEN APPROACHING A TURN, THE FRONT WHEELS BEGAN TO SQUEAL. THE READING ON THE INSTRUMENT PANEL DISPLAYED THE FOUR WHEEL HIGH RANGE AND NO INDICATION OF THE LOCK BEING ENGAGED. THE FAILURE OCCURRED WHENEVER THE VEHICLE WAS IN OPERATION. THE FAILURE WILL BE DIAGNOSED BY AN AUTHORIZED DEALER. THE FAILURE MILEAGE WAS 90,000. THE VIN WAS UNAVAILABLE.
NHTSA ODI #10344075
Mileage unknown · Jun 14, 2010
Power Train
TL* THE CONTACT OWNS A 2003 HUMMER H3. WHILE DRIVING AT APPROXIMATELY 1 MPH REVERSING FROM A GARAGE, THE VEHICLE REMAINED IN 4-WHEEL DRIVE MODE. THE VEHICLE WAS TAKEN TO THE DEALER AND SHE WAS INFORMED THAT THERE WAS A CRACK IN THE TRANSFER CASE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE PERSISTED DAILY. THE FAILURE MILEAGE WA…
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TL* THE CONTACT OWNS A 2003 HUMMER H3. WHILE DRIVING AT APPROXIMATELY 1 MPH REVERSING FROM A GARAGE, THE VEHICLE REMAINED IN 4-WHEEL DRIVE MODE. THE VEHICLE WAS TAKEN TO THE DEALER AND SHE WAS INFORMED THAT THERE WAS A CRACK IN THE TRANSFER CASE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE PERSISTED DAILY. THE FAILURE MILEAGE WAS UNKNOWN AND THE CURRENT MILEAGE WAS 125,390.
NHTSA ODI #10336248
14,916 miles · Oct 15, 2008
Engine And Engine CoolingPower TrainStructure
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 "HID…
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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. UNFORTUNATELY WHICH WOULD SURFACE AFTER HE LEFT WITH MY $23,250 IN CASH! I WOULD E-MAIL THE SELLER AND TOLD HIM HE MISREPRESENTED HIMSELF AND THE CONDITION OF THE VEHICLE AND HOW HE APPARENTLY ABUSED IT. MORE IMPORTANTLY, I DISCOVERED "EXCESSIVE" RUST UNDERNEATH THIS VEHICLE. BECAUSE THESE CONDITIONS WERE NOT DIVULGED TO ME BY MR. JOHNSON, I AM HAVING A HARD TIME SELLING THE VEHICLE THAT PRACTICALLY CLEANED OUT ALL OF MY SAVINGS. HE CLAIMED THIS TRUCK WAS GARAGED KEPT AND THAT HE DID NO OFF ROAD RIDING. THIS APPARENTLY IS TOTALLY UNTRUE, AS THE CAR WOULD NOT HAVE AS MUCH RUST AS IT IS LOADED WITH FOR A 2006! SO, CAN YOU TELL ME WHAT RECOURSE, I MAY HAVE AS A THE BUYER, BESIDES HIRING A PRIVATE ATTORNEY WHO I CAN'T AFFORD, AS I AM ON PERMANENT DISABILITY. THERE MUST I SOMETHING MY I CAN PURSUE UNDER ANY STATE OR FEDERAL CONSUMER LAWS, ESPECIALLY, SINCE THE VEHICLE IS STILL UNDER WARRANTY BY GENERAL MOTORS.. I SHOULD ALSO ADD THAT I AM HAVING DIFFICULTY WITH A LOCAL HUMMER DEALER "ROYAL HUMMER" IN FLORHAM PARK, WHO SEEMED RELUCTANT TO ADDRESS THE MANY ISSUES I AM HAVING WITH THIS HUMMER! I WOULD ALSO APPRECIATE IF YOU CAN FORWARD THIS COMPLAINT TO GENERAL MOTORS CORPORATION, IN MICHIGAN, AS THEY SHOULD KNOW I AM HAVING DIFFICULTY WITH DEALERS WANTING TO HONOR,AS THEY SHOULD, ANY WARRANTY WORK! I AM PREPARED TO FILE EVERY COMPLAINT I COULD TO GET RESTITUTION FOR THIS APPARENT. *TR
NHTSA ODI #10245631
11,832 miles · Aug 5, 2008
Power TrainService Brakes, Hydraulic
TL*THE CONTACT OWNS A 2006 HUMMER H3. ON MAY 23, 2008, WHILE DRIVING 35 MPH, THE CONTACT ATTEMPTED TO DOWNSHIFT AND NOTICED THAT THE TRANSMISSION MADE A RUBBLING SOUND. THE TRANSMISSION STOPPED FUNCTIONING AND THE VEHICLE SUDDENLY PULLED TO THE LEFT. THE VEHICLE WAS TOWED TO A GMC DEALER AND THEY STATED THAT THE CLUTCH ASSEMB…
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TL*THE CONTACT OWNS A 2006 HUMMER H3. ON MAY 23, 2008, WHILE DRIVING 35 MPH, THE CONTACT ATTEMPTED TO DOWNSHIFT AND NOTICED THAT THE TRANSMISSION MADE A RUBBLING SOUND. THE TRANSMISSION STOPPED FUNCTIONING AND THE VEHICLE SUDDENLY PULLED TO THE LEFT. THE VEHICLE WAS TOWED TO A GMC DEALER AND THEY STATED THAT THE CLUTCH ASSEMBLY EXPLODED. THE VEHICLE WAS SERVICED AND THE CONTACT DID NOT NOTICE ANY DIFFERENCES PRIOR TO THE FAILURE. WHILE DRIVING 55 MPH, THE BRAKE WARNING LIGHT ILLUMINATED ON THE INSTRUMENT PANEL. THE BRAKE PEDAL EXTENDED TO THE FLOOR WHEN IT WAS DEPRESSED. THE CONTACT HAD TO DOWNSHIFT AND APPLY THE EMERGENCY BRAKE TO STOP THE VEHICLE. THE VEHICLE WAS TOWED TO THE DEALER AND THEY STATED THAT THE BRAKE LINE HAD CRACKED ON BOTH SIDES OF THE VEHICLE. THE CONTACT WAS NOT IN A CRASH, BUT THE VEHICLE WAS SERVICED FOR THE FAILURE. THE CURRENT MILEAGE WAS 12,500 AND FAILURE MILEAGE WAS 11,832.
NHTSA ODI #10237028
2,750 miles · Feb 21, 2007
Electrical SystemFuel System, GasolinePower Train
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-…
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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. THE HUMMER DEALER CAN FIND NO STORED CODES, AND CAN NOT DUPLICATE THIS. GM HAS BEEN NOTIFIED, BUT NOTHING HAS BEEN DONE TO REPAIR THIS PROBLEM BECAUSE THE DEALER CAN NOT SUPPLY DEFECT CODES. THIS HAS BEEN GOING ON SINCE AUGUST '06 WITH NO END IN SIGHT. I HAVE ASKED THE ECU BE EITHER REFLASHED OR REPLACED AND WAS TOLD IT WAS TOO COSTLY TO JUST PUT PARTS IN WITHOUT ANY CODES. I BELIEVE THE SOFTWARE COULD BE CORRUPTED. AND IS NOT AWARE ANYTHING IS WRONG. THUS THERE ARE NO CODES. *JB
NHTSA ODI #10183117
35 miles · Jul 7, 2006
Electrical SystemPower TrainUnknown Or Other
NUISANCE - KEY STUCK INTERMITTENTLY IN IGNITION UPON TURNING OFF. SAFETY PROBLEM - KEY CAN ALWAYS BE REMOVED WITH TRANSMISSION IN ANY GEAR POSITION. *JB
NHTSA ODI #10161819
7,000 miles · Apr 3, 2006
Power Train
DT*: THE CONTACT STATED WHILE DRIVING AT NO PARTICULAR SPEED ON THE HIGHWAY, THE VEHICLE MYSTERIOUSLY SUCKED UP A GARAGE BAG. THE BAG WRAPPED AROUND THE DRIVESHAFT. THE VEHICLE WAS TAKEN TO THE DEALERSHIP WHICH DETERMINED THE DRIVESHAFT NEEDED REPLACED.
NHTSA ODI #10154422
2,150 miles · Nov 15, 2005
Power Train
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. *JB
NHTSA ODI #10142704
Official recalls
4Jul 1, 2015
General Motors LLC (GM) is recalling certain model year 2006-2010 Hummer H3 vehicles manufactured February 5, 2005, to May 24, 2010, and 2009-2010 Hummer H3T vehicles manufactured May 21, 2008, to May 24, 2010. In the affected vehicles, the connector module that controls the blower motor speed for the heating, ventilation and air conditioning system may overheat.
Consequence & remedy
Consequence: If the blower motor connector module overheats, it can increase the risk of a fire.
Remedy: GM will notify owners, and dealers will replace part of the blower motor connector and harness, free of charge. The recall began February 26, 2016. Owners may contact Hummer customer service at 1-800-732-5493. GM's number for this recall is 15042.
Apr 30, 2010
GM IS RECALLING CERTAIN MODEL YEAR 2006 THROUGH 2010 HUMMER H3 VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH THE INTEGRAL CLIP-TABS ON THE LOUVER ON THE HOOD MAY FRACTURE, CAUSING THE HOOD LOUVER RATTLE AGAINST THE HOOD AND BECOME LOOSE. IF THIS INDICATOR IS UNNOTICED, ADDITIONAL CLIPS COULD FRACTURE AND THE HOOD LOUVER COULD DETACH FROM THE VEHICLE.
Consequence & remedy
Consequence: IF THE VEHICLE IS BEING DRIVING WHEN THIS OCCURS, IT COULD STRIKE A FOLLOWING VEHICLE AND CAUSE INJURY AND/OR PROPERTY DAMAGE.
Remedy: DEALERS WILL APPLY AN ADHESIVE TO THE HOOD LOUVER TO SECURE IT TO THE HOOD. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON APRIL 12, 2010. OWNERS MAY CONTACT HUMMER AT 800-732-5493 OR AT THE OWNER CENTER AT WWW.GMOWNERCENTER.COM.
Oct 31, 2006
CERTAIN VEHICLES ORIGINALLY BUILT WITH CLOTH SEATS THAT WERE EQUIPPED WITH AN AUTOMATIC AIR BAG PASSENGER SENSING SYSTEM AND LATER REUPHOLSTERED WITH AFTERMARKET LEATHER SEAT COVER KITS ARE INVOLVED. TESTING HAS INDICATED THAT THE AFTERMARKET LEATHER SEAT COVERS CAN CAUSE THE PASSENGER SENSING SYSTEM TO MALFUNCTION.
Consequence & remedy
Consequence: IF THE PASSENGER SENSING SYSTEM MALFUNCTIONS, THE FRONT AIR BAG ON THE PASSENGER SIDE MAY BE DISABLED WHEN IT SHOULD BE ENABLED, OR ENABLED WHEN IT SHOULD BE DISABLED. IN EITHER CASE, IN THE EVENT OF A CRASH THAT REQUIRES AIR BAG DEPLOYMENT, A FRONT PASSENGER'S LEVEL OF INJURY MAY BE INCREASED.
Remedy: BECAUSE A REPLACEMENT LEATHER SEAT COVER THAT IS COMPATIBLE WITH THE PASSENGER SENSING SYSTEM IS NOT AVAILABLE, GENERAL MOTORS (GM) WILL REPURCHASE THESE VEHICLES IN ACCORDANCE WITH THE TERMS STATED IN GM'S LETTER TO OWNERS. THE RECALL BEGAN ON NOVEMBER 6, 2006. OWNERS SHOULD CONTACT GM AT 1-877-477-1022 TO BEGIN THE PROCESS OF REPURCHASING THEIR VEHICLE.
Dec 7, 2005
CERTAIN TRUCKS AND SPORT UTILITY VEHICLES FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110, "TIRE SELECTION AND RIMS." THESE VEHICLES WERE SHIPPED WITH TIRE AND LOADING INFORMATION LABELS LISTING AN INACCCURATE VEHICLE CAPACITY WEIGHT.
Consequence & remedy
Consequence: A MISPRINTED LABEL COULD LEAD TO IMPROPER VEHICLE LOADING SPECIFICATIONS OR TIRE INFLATION WHICH COULD RESULT IN A TIRE FAILURE, INCREASING THE RISK OF A CRASH.
Remedy: OWNERS WILL BE PROVIDED WITH CORRECTED LABELS AND INSTALLATION INSTRUCTIONS. AT THE CUSTOMER'S OPTION, A DEALER CAN INSTALL THE LABEL FOR THEM. THE RECALL BEGAN ON MARCH 31, 2006. OWNERS MAY CONTACT BUICK AT 1-866-608-8080, CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463, HUMMER AT 1-800-732-5493, PONTIAC AT 1-800-620-7668, SATURN AT 1-800-972-8876, OR ISUZU AT 1-800-255-6727.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗