← New search

2006 Hummer H3

Owner reports · Recalls · Investigations

More warning signs than most H3 years

Owner complaints for the 2006 Hummer H3 are substantially higher than the model-year median of 91.

About this comparison →

When problems were reported

Mileage at the reported incident

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
83,000 miles · Aug 5, 2013
Engine

TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT THE TEMPERATURE GAUGE HAD INCREASED SEVERAL TIMES AND WHEN HE INSPECTED THE VEHICLE, HE FOUND RADIATOR COOLANT LEAKING FROM THE RADIATOR TOP SEAL. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE HE FAILURE. THE FAILURE AND CURRENT MILEAGE WAS…

Read full complaint

TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT THE TEMPERATURE GAUGE HAD INCREASED SEVERAL TIMES AND WHEN HE INSPECTED THE VEHICLE, HE FOUND RADIATOR COOLANT LEAKING FROM THE RADIATOR TOP SEAL. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE HE FAILURE. THE FAILURE AND CURRENT MILEAGE WAS 83,000.

NHTSA ODI #10533671

65,021 miles · Jul 9, 2013
Electrical SystemFire

THIS IS THE SECOND TIME THE BLOWER RESISTOR/HARNESS HAS CAUGHT FIRE [1ST TIME 1/11/12 2ND TIME 7/3/13] THE ORANGE WIRE GOING INTO THE HARNESS SEEMS TO OVER HEAT AND MELT/CATCH FIRE THE LAST TIME IT FILLED CAB WITH SMOKE HAD STOP VEHICLE AND EXIT BECAUSE OF FIRE -SMOKE. *TR

NHTSA ODI #10523915

89,000 miles · Jun 3, 2013
Electrical SystemFire

VEHICLE HAD HEATER BLOWER HARNESS AND RESISTOR FAIL AND CATCH FIRE FOR THE SECOND TIME. REPAIRED REPLACED ONCE BEFORE. THIS PARTICULAR PROBLEM OCCURS DUE TO A DESIGN DEFECT AND REPLACEMENT PARTS DO NOT CORRECT THE UNDERLYING PROBLEM AND IT WILL FAIL AGAIN. IT IS JUST A MATTER OF TIME. THE CIRCUITS SHOULD BE FUSE PROTECTED SO…

Read full complaint

VEHICLE HAD HEATER BLOWER HARNESS AND RESISTOR FAIL AND CATCH FIRE FOR THE SECOND TIME. REPAIRED REPLACED ONCE BEFORE. THIS PARTICULAR PROBLEM OCCURS DUE TO A DESIGN DEFECT AND REPLACEMENT PARTS DO NOT CORRECT THE UNDERLYING PROBLEM AND IT WILL FAIL AGAIN. IT IS JUST A MATTER OF TIME. THE CIRCUITS SHOULD BE FUSE PROTECTED SO THIS WILL NOT BURN. PART NUMBERS HAVE BEEN CHANGED TO UPGRADE THIS CONNECTION TO NEWER DESIGN, BUT THESE PARTS ALSO FAIL. THIS IS A SERIOUS FAILURE OF THE ELECTRICAL SYSTEM. IN ADDITION, THE GROUND TERMINAL TO THE CHASSIS (BY THE INTAKE FILTER IN THE ENGINE COMPARTMENT) IS SUSPECT AS WELL. OVERALL THIS IS AN INCREDIBLY NEGLIGENTLY DESIGNED CIRCUIT. ONE CAN ALSO FIND NUMEROUS REPORTED FAILURES IN RELATED VEHICLES USING THE SAME PARTS. *TR

NHTSA ODI #10514868

88,768 miles · May 23, 2013
Engine

CAME OUT OF WORK TO FIND A PUDDLE OF COOLANT ON THE GROUND. RADIATOR PLASTIC CRACKED. FLUID IS ON FAN AND THROUGHOUT ENGINE COMPARTMENT. SEARCHED ON GOOGLE AND FOUND THIS IS A KNOWN ISSUE. GM DEALER AND CUSTOMER SERVICE ACKNOWLEDGED THIS IS A COMMON ISSUE, HOWEVER WOULD DO NOTHING ABOUT IT. *TR

NHTSA ODI #10513348

68,000 miles · May 3, 2013
Visibility/wiper

TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE SUN ROOF BEGAN TO LEAK WATER. THE WATER CAUSED MOLD TO GROW INSIDE THE VEHICLE. THE CONTACT HAD CONTRACTED PNEUMONIA THREE TIMES DUE TO THE FAILURE. THE VEHICLE WAS TAKEN TO A DEALER FOR DIAGNOSIS AND THE CONTACT WAS ADVISED TO CL…

Read full complaint

TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE SUN ROOF BEGAN TO LEAK WATER. THE WATER CAUSED MOLD TO GROW INSIDE THE VEHICLE. THE CONTACT HAD CONTRACTED PNEUMONIA THREE TIMES DUE TO THE FAILURE. THE VEHICLE WAS TAKEN TO A DEALER FOR DIAGNOSIS AND THE CONTACT WAS ADVISED TO CLEAN THE SUN ROOF TRACK EVERY TWO TO THREE MONTHS TO AVOID THE LEAK.THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 68,000.

NHTSA ODI #10510526

101,000 miles · Apr 1, 2013
Engine

THE SERVICE TECHNICIAN DIAGNOSED A CRACKED RADIATOR, WHICH IS A KNOW HUMMER H3 ISSUE. THEY HAVE ASKED FOR $850+ TO FIX WHAT IS A KNOWN DESIGN FLAW. HTTP://WWW.HUMMERFORUMS.COM/FORUM/HUMMER-H3-17/READ-IF-YOUR-H3-RADIATOR-HAS-CRACKED-LEAKED-21184/. *TR

NHTSA ODI #10505265

42,000 miles · Mar 17, 2013
Engine

I WENT IN TO DEALER FOR WHAT I CALLED A FLUTTERING PERIODIC IDLE. THEY TOOK A LOOK $200.00 LATER TOLD ME I HAD MISFIRE IN #2 AND #5 AND NEEDED NEW HEAD. YOU CAN IMAGINE MY COMMENTS AND HE SAID IT IS COMMON HE JUST DID ONE LAST WEEK ON THE SAME YEAR AND TYPE H3! WELL I WAS IN TOUCH WITH GM - THE CAR IS OUT OF WARRANTY BUT LO…

Read full complaint

I WENT IN TO DEALER FOR WHAT I CALLED A FLUTTERING PERIODIC IDLE. THEY TOOK A LOOK $200.00 LATER TOLD ME I HAD MISFIRE IN #2 AND #5 AND NEEDED NEW HEAD. YOU CAN IMAGINE MY COMMENTS AND HE SAID IT IS COMMON HE JUST DID ONE LAST WEEK ON THE SAME YEAR AND TYPE H3! WELL I WAS IN TOUCH WITH GM - THE CAR IS OUT OF WARRANTY BUT LOW MILEAGE. THEY DID COVER A PORTION AND I WAS RESPONSIBLE FOR THE REST. WELL I PICK UP WEEK LATER. WAS TOLD IT WAS TEST DRIVEN AND RUNS GREAT. I TOLD THEM IT RAN GREAT BEFORE JUST THE FLUTTERING IDLE WHEN I STOPPED AT A LIGHT. THEY SAID YOU ARE ALL SET.. MANY BAD WORDS ESCAPED MY MOUTH WHEN I DROVE HOME AND IT WAS NOT FIXED. THE VEHICLE STILL DROVE THE SAME WAY IT DID BEFORE AND THE FLUTTER WAS STILL THERE,. SO NOW I HAVE TO BRING IT BACK AGAIN AND I MADE THE TECH GET IN THE VEHICLE SO HE KNEW WHAT I WAS TALKING ABOUT AND HE SAID WELL IT WAS BROUGHT IN FOR A MISFIRE. UHHH NO IT WAS NOT. WHY HAS GM NOT DONE ANY TYPE OF RECALL ON THIS IF IT IS KNOWN PROBLEM. FEEL LIKE THEY DON'T CARE SINCE THE VEHICLE IS NOT MADE ANYMORE WHAT DOES IT MATTER TO THEM. I COULD CONTINUE BUT AM LIMITED TO CHARACTERS. *TR

NHTSA ODI #10503345

120,000 miles · Mar 8, 2013
Electrical SystemFire

TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 10 MPH, A BURNING ODOR WAS SMELLED AND SMOKE EMITTED FROM THE GLOVE COMPARTMENT. THE CONTACT MANEUVERED THE VEHICLE TO A SAFE LOCATION AND EXTINGUISHED THE FLAMES. THE VEHICLE WAS ABLE TO BE DRIVEN AFTER THE INCIDENT OCCURRED. THE MANUFACT…

Read full complaint

TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 10 MPH, A BURNING ODOR WAS SMELLED AND SMOKE EMITTED FROM THE GLOVE COMPARTMENT. THE CONTACT MANEUVERED THE VEHICLE TO A SAFE LOCATION AND EXTINGUISHED THE FLAMES. THE VEHICLE WAS ABLE TO BE DRIVEN AFTER THE INCIDENT OCCURRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE PROBLEM. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 120,000.

NHTSA ODI #10502048

1,000 miles · Mar 7, 2013
Electrical SystemStructure

WE HAVE BATTLING THE PROBLEM OF THE SUNROOF LEAKING ON OUR HUMMER. THERE IS DRAIN TUBES IN THE CORNERS OF THE SUNROOF THIS WATER IS SUPPOSED TO GO DO THESE TUBES THEN ON THE GROUND. HOW EVER THIS IS NOT THE CASE. IN MOST CASES THE WATER LEAKS DOWN THE PILLARS IN THE TRUCKS DASH COMPARTMENT AND SOAKS THE CARPET ON BOTH SIDES AND …

Read full complaint

WE HAVE BATTLING THE PROBLEM OF THE SUNROOF LEAKING ON OUR HUMMER. THERE IS DRAIN TUBES IN THE CORNERS OF THE SUNROOF THIS WATER IS SUPPOSED TO GO DO THESE TUBES THEN ON THE GROUND. HOW EVER THIS IS NOT THE CASE. IN MOST CASES THE WATER LEAKS DOWN THE PILLARS IN THE TRUCKS DASH COMPARTMENT AND SOAKS THE CARPET ON BOTH SIDES AND THE HEAD LINER. WE HAVE HAD IT TO THE DEALERSHIP ON SEVERAL ACCESSIONS AND THEY JUST SAY THEY WERE STOP UP BUT THEY JUST LEAK THE NEXT DAY LIKE NOTHING HAS EVEN BEEN DONE. THEY CHARGE 300 DOLLARS TO DO THIS. I HAVE THE TECHNICIAN TELL ME THAT NOTHING HE HAS DONE WILL FIX THIS OFF THE RECORD..WHEN THE WATER IS POURING IN THERE IS NOTHING YOU CAN DO THE ONSTAR GOES OFF AND YOUR LIGHTS ON THE INSIDE GO DIM WE HAVE HAD THE CPU SHORT OUT DUE TO WATER THE BLOWER CONTROLLER BOTH FRONT SPEAKERS AND BEHIND THE DASH ALL THE METAL PARTS ARE COVERED IN RUST. WHEN THE ELECTRICAL PARTS SHORTED OUT THE WIRES WERE BURNT AND WE WERE DRIVING WHEN THIS HAPPENED ON ONE OCCASION AND HAD TO HAVE IT TOWED. WE HAVE TRIED EVERYTHING TAKEN IT THE DEALERSHIP DID NOT HELP. THE TRUCK IS ALWAYS DAMP INSIDE. THEN OF COURSE THE SMELL OF THE CARPETS. I EVEN HAVE CONTACTED GM AND JUST SAID TAKE TO THE DEALERSHIP AND THEY ARE GONNA CHARGE THE SAME THING. I AM SCARED FOR MY WIFE AND FAMILY TO DRIVE THIS TRUCK. WE WILL NOT EVEN LEAVE IN THE GARAGE DUE THE RISK OF FIRE. IF YOU GOOGLE THIS PROBLEM THERE IS OVER 60K TOPICS ON THIS AND FORUM AFTER FORUM ABOUT IT. AND EVERY IS SAYING THIS. IT IS OBVIOUS THAT THIS IS A DESIGN FLAW AND GM IS NOT GOING TO STAND BEHIND THIS. I THINK SOMETHING SHOULD DONE ABOUT THIS BEFORE SOMETHING VERY BAD HAPPENS TO SOMEONE IN THESE TRUCKS. I JUST WANT IT FIXED NOTHING ELSE. *TR

NHTSA ODI #10502024

76,741 miles · Feb 28, 2013
StructureVisibility

I HAVE OWNED THIS TRUCK SINCE 2009, AND IT SEEMS TO BE A COMMON PROBLEM WITH THE SUNROOF DRAIN TUBES CLOGGING. WHEN MY VEHICLE WAS UNDER WARRANTY, AND WAS GOING IN FOR IT'S SCHEDULED PMIS I WOULD HAVE THEM BLOW THE DRAIN TUBES OUT WITH AIR, BUT THE CLOGGING IS NOW BECOMING MORE FREQUENT, AND THE WATER IF NOT REMOVED CAN CAUSE…

Read full complaint

I HAVE OWNED THIS TRUCK SINCE 2009, AND IT SEEMS TO BE A COMMON PROBLEM WITH THE SUNROOF DRAIN TUBES CLOGGING. WHEN MY VEHICLE WAS UNDER WARRANTY, AND WAS GOING IN FOR IT'S SCHEDULED PMIS I WOULD HAVE THEM BLOW THE DRAIN TUBES OUT WITH AIR, BUT THE CLOGGING IS NOW BECOMING MORE FREQUENT, AND THE WATER IF NOT REMOVED CAN CAUSE HAVOC WITH THE CLOTH, ELECTRICAL & FLOORING. LAST WEEK I HAD A MILDEW SMELL BECAUSE OF ALL THE RAIN WE HAVE HAD, AND THE WATER BUILT UP IN THE SUNROOF DRAIN AREA. THESE TUBES ARE A DESIGN FLAW, AND THIS SHOULD ALSO BE A RECALL, AS THE WATER WILL BE THE MAIN CAUSE FOR PROBLEMS IN THIS SITUATION. *TR

NHTSA ODI #10500803

Official recalls

4

15V421000 · Visibility:defroster/defogger/hvac System:fan/motor

Jul 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.

10V179000 · Structure:body:hood

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.

06V417000 · Air Bags:frontal

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.

05V552000 · Equipment:other:labels

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 ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.