Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
460–25K
3225–50K
6450–75K
5475–100K
71100–150K
19150K+
286 reports with mileage · 75 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Electrical System. Review the 96 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Engine. Review the 52 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Structure. Review the 36 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
10 crash reports27 fire reports7 injury reports
What owners actually said
361 reports
105,498 miles · Feb 7, 2021
Engine
P0305 CEL CODE CAME ON AND TOOK IT TO A MECHANIC. THEY DIAGNOSED THE ISSUE AND DID A COMPRESSION TEST WHICH PRODUCED RESULTS OF CYLINDER 5 HAVING 70 PSI AND THE OTHER CYLINDERS WERE NORMAL. DETERMINE THAT THE VALVES SEATS ARE BAD AND IT IS A COMMON ISSUE ON THE HUMMER H3. TOTAL COST FOR REPAIRS WAS PROJECTED TO BE $9,000 F…
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P0305 CEL CODE CAME ON AND TOOK IT TO A MECHANIC. THEY DIAGNOSED THE ISSUE AND DID A COMPRESSION TEST WHICH PRODUCED RESULTS OF CYLINDER 5 HAVING 70 PSI AND THE OTHER CYLINDERS WERE NORMAL. DETERMINE THAT THE VALVES SEATS ARE BAD AND IT IS A COMMON ISSUE ON THE HUMMER H3. TOTAL COST FOR REPAIRS WAS PROJECTED TO BE $9,000 FOR ALL PARTS AND LABOR.
NHTSA ODI #11395103
111,000 miles · Feb 5, 2021
Suspension
TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED WHILE DRIVING 10 MPH, THE CONTACT HEARD A POP FROM THE REAR PASSENGER'S SIDE OF THE VEHICLE. UPON INVESTIGATION, THE CONTACT ASSOCIATED THE FAILURE WITH THE LEAF SPRINGS. THE VEHICLE WAS AWAITING A TOW. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER HAD NOT …
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TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED WHILE DRIVING 10 MPH, THE CONTACT HEARD A POP FROM THE REAR PASSENGER'S SIDE OF THE VEHICLE. UPON INVESTIGATION, THE CONTACT ASSOCIATED THE FAILURE WITH THE LEAF SPRINGS. THE VEHICLE WAS AWAITING A TOW. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER HAD NOT BEEN INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 111,000.
NHTSA ODI #11394868
135,000 miles · Nov 30, 2020
Suspension
WAS MAKING A RIGHT TURN,HEARD A LOUD POP WAS ABLE TO GET HOME.UPON INSPECTION THE REAR DRIVER SIDE LEAF SPRING FRACTURED.AFTER RESEARCHING THIS MUST BE AN ONGOING ISSUE,BUT NO RECALL.
NHTSA ODI #11377123
244,000 miles · Oct 24, 2020
Electrical System
THE IGNITION SWITCH IS STAKED AND IS NOT ABLE TO TURNING ON
NHTSA ODI #11366168
150,000 miles · Jul 18, 2020
Unknown Or Other
I BELIEVE THERE IS A PROBLEM WITH THE H3 HUMMER 2006 I REQUEST TO BRING IT TO A DEALER TO GET IT CHECKED. HAS TO DO WITH THE TURNING, REVERSE. WHEN VEHICLE IS PUT IN NEUTRAL STILL SEEMS IN DRIVE. SOUNDS LIKE A PLASTIC NOISE. NEEDS TO BE CHECKED BY A CERTIFIED MECHANIC
NHTSA ODI #11340038
153,000 miles · Jun 6, 2020
StructureUnknown Or OtherVisibility
MY SUNROOF HAS BEEN LEAKING, ON THE PASSENGER SIDE IT CHIMES OUT BEHIND & BELOW THE GLOVE BOX. ON THE DRIVER'S SIDE IT LEAKS DIRECTLY FROM THE SUNROOF ONTO THE DRIVER'S SEAT, AND BEHIND THE EMERGENCY BRAKE. BOTH SIDES SOAK THE FLOORBOARDS FRONT & BACK. IT LEAKS WHETHER STATIONARY OR IN MOTION, HOWEVER WHEN IT HAS BEEN SITTING DU…
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MY SUNROOF HAS BEEN LEAKING, ON THE PASSENGER SIDE IT CHIMES OUT BEHIND & BELOW THE GLOVE BOX. ON THE DRIVER'S SIDE IT LEAKS DIRECTLY FROM THE SUNROOF ONTO THE DRIVER'S SEAT, AND BEHIND THE EMERGENCY BRAKE. BOTH SIDES SOAK THE FLOORBOARDS FRONT & BACK. IT LEAKS WHETHER STATIONARY OR IN MOTION, HOWEVER WHEN IT HAS BEEN SITTING DURING A RAIN STORM, WHEN YOU MOVE IT, SHEETS OF WATER POUR DOWN FROM THE SUNROOF. *TR
NHTSA ODI #11327547
200,000 miles · Mar 29, 2020
Electrical SystemFuel/propulsion SystemUnknown Or Other
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 ELECTRI…
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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. HOW AM I SUPPOSED TO BE SAFELY IN THE VEHICLE, DRIVE SOMEWHERE AND THEN IT STALLS AGAIN? I AM THE ORIGINAL OWNER AND HAVEN'T HAD THIS ISSUE UNTIL IT STARTED 4 WEEKS AGO. WHAT IF THIS HAPPENS WHILE I AM DRIVING ON THE HIGHWAY AND FUEL STOPS GOING TO THE PUMP? THIS COULD CAUSE A MULTI-VEHICLE ACCIDENT.
NHTSA ODI #11319662
106,000 miles · Mar 8, 2020
Suspension
THE FRAME ROTTED OUT AND I WANT IT FIXED THE FRONT MOUNTS FOR THE REAR LEAF SPRINGS ROTTED OFF
NHTSA ODI #11316851
68,000 miles · Dec 8, 2019
Unknown Or Other
THE VEHICLE WHEN STOPPING/ PARKING WILL ALLOW YOU TO REMOVE THE KEYS WITHOUT THE VEHICLE BEING IN PARK THEREFORE LEAVING THE VEHICLE IN A STATE THAT CAN ROLLNIN EITHER DIRECTION AND TO START THE VEHICLE AGAIN THE SHIFTER NEEDS TOBE MOVED INTO THE PARK POSITION OR IT WILL NOT DO ANYTHING.
NHTSA ODI #11287718
91,000 miles · Aug 12, 2019
Fuel/propulsion System
TL* THE CONTACT OWNS A 2006 HUMMER H3. WHEN THE VEHICLE WAS STARTED, IT SHUT OFF WITHOUT WARNING. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE FUEL RELAY AND THE FUEL PUMP NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED. THE CONTACT CALLED EDWARDS CHEVROLET BUICK GMC …
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TL* THE CONTACT OWNS A 2006 HUMMER H3. WHEN THE VEHICLE WAS STARTED, IT SHUT OFF WITHOUT WARNING. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE FUEL RELAY AND THE FUEL PUMP NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED. THE CONTACT CALLED EDWARDS CHEVROLET BUICK GMC CADILLAC AT 712-366-9400 (LOCATED AT 3400 SOUTH EXPY, COUNCIL BLUFFS, IA 51501) AND WAS INFORMED THAT THERE WAS NO RECALL. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND REFERRED THE CONTACT TO NHTSA. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 91,000.
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.
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.
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.
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 ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
2006 Hummer H3 Problems, Complaints & Recalls | Skip That Year
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