IllustrationCRACK IN THE RADIATOR, HAD IT REPLACED AT A INDEPENDENT SHOP NOT KNOWING THAT THIS IS AN ON GOING PROBLEM WITH THIS MODAL HUMMER. DEFINATLY A FLAW SOMEWHERE ON GMS PART. *TR
2008 Hummer H3
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2008 Hummer H3 do not stand out strongly from the model-year median of 91.
About this comparison →How this year compares
Owner complaints by model year
Compare all H3 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
110–25K
1425–50K
1650–75K
2075–100K
20100–150K
6150K+
87 reports with mileage · 26 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 34 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 18 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Air Bags. Review the 17 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
3 crash reports6 fire reports5 injury reports
What owners actually said
113 reportsRADIATOR HAS CRACKED DUE TO MANUFACTURES DEFECT. *TR
I HAVE A 08 HUMMER H3 AND JUST FOUND OUT THAT I HAVE A CRACKED RADIATOR. THE VEHICLE ONLY HAS 52,891 MILES ON IT. THIS SEEMS TO BE HAPPENING ALOT TO THE 07 AND 08 HUMMER H3. I THINK WE NEED A RECALL ON THIS. ALL OF THE FORUMS I HAVE SEEN HAVE HAD THEIRS CRACK IN THE SAME PLACE. ALL ON TOP OF THE RADIATORS. THIS IS SOMETHIN…
Read full complaint
I HAVE A 08 HUMMER H3 AND JUST FOUND OUT THAT I HAVE A CRACKED RADIATOR. THE VEHICLE ONLY HAS 52,891 MILES ON IT. THIS SEEMS TO BE HAPPENING ALOT TO THE 07 AND 08 HUMMER H3. I THINK WE NEED A RECALL ON THIS. ALL OF THE FORUMS I HAVE SEEN HAVE HAD THEIRS CRACK IN THE SAME PLACE. ALL ON TOP OF THE RADIATORS. THIS IS SOMETHING YOU MIGHT WANT TO LOOK INTO. I KNOW PERSONALLY I AM TIRED OF SOMETHING GOING WRONG ON THIS. FIRST WAS THE RACK AND PINION WITH ONLY 50,844 MILES AND NOW THIS. COME ON ITS TIME FOR A RECALL. *TR
SMELL OF BURNING PLASTIC AND THE A/C STOPPED BLOWING. THE A/C WORKS ON THE LOWER SPEEDS. BURNT/MELTED PLUG ON THE A/C RESISTOR PLUG. FROM WHAT I HAVE FOUND ONLINE THIS IS A VERY COMMON PROBLEM WITH H3'S AT ABOUT 40-60K MILES. WHY WONT GM DO A RECALL IF THIS IS A DAILY PROBLEM WITH H3 OWNERS. HOW MANY H3'S HAVE CAUGHT FIRE FROM …
Read full complaint
SMELL OF BURNING PLASTIC AND THE A/C STOPPED BLOWING. THE A/C WORKS ON THE LOWER SPEEDS. BURNT/MELTED PLUG ON THE A/C RESISTOR PLUG. FROM WHAT I HAVE FOUND ONLINE THIS IS A VERY COMMON PROBLEM WITH H3'S AT ABOUT 40-60K MILES. WHY WONT GM DO A RECALL IF THIS IS A DAILY PROBLEM WITH H3 OWNERS. HOW MANY H3'S HAVE CAUGHT FIRE FROM THIS ? IT WAS OVER A 110 DEGREES WHEN MINE WENT OUT. WHAT IF I HAD YOUNG CHILD OR AN ELDERLY PERSON IN THE VEHICLE AT THAT TEMP ? *TR
TL* THE CONTACT OWNS A 2008 HUMMER H3. THE CONTACT STATED WHILE DRIVING 9 MPH THE DRIVER AND PASSENGER SIDE CURTAIN AIR BAGS DEPLOYED. THE PASSENGER SUFFERED NECK INJURIES INCLUDING A CHIPPED BONE. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE FAILURE AND CURRENT MILEAGES WAS 41,000.
TL* THE CONTACT OWNS A 2008 HUMMER H3. THE CONTACT STATED THAT WHEN DRIVING THE VEHICLE AT ANY SPEED AND UTILIZING THE AIR CONDITIONER, SMOKE WOULD EMIT FROM UNDER THE HOOD AND CAUSED THE CONTACT TO HAVE TROUBLE BREATHING. THE MANUFACTURER WAS NOT NOTIFIED OF THE ISSUE. THE VEHICLE WAS NOT TAKEN FOR INSPECTION OR REPAIRS. THE …
Read full complaint
TL* THE CONTACT OWNS A 2008 HUMMER H3. THE CONTACT STATED THAT WHEN DRIVING THE VEHICLE AT ANY SPEED AND UTILIZING THE AIR CONDITIONER, SMOKE WOULD EMIT FROM UNDER THE HOOD AND CAUSED THE CONTACT TO HAVE TROUBLE BREATHING. THE MANUFACTURER WAS NOT NOTIFIED OF THE ISSUE. THE VEHICLE WAS NOT TAKEN FOR INSPECTION OR REPAIRS. THE VIN WAS NOT AVAILABLE. THE FAILURE AND THE CURRENT MILEAGE WAS 44,000.
PROBLEM: REAR PASSENGER DOORS WHEN DRIVING IN WET MUD,SLUSH FREEZE REAR PASSENGER DOORS SHUT IN FREEZING WEATHER... YOU CAN NOT GET DOORS OPEN FROM INSIDE OR OUT.... CHILDREN OR ADULTS WILL BE TRAPPED INSIDE REAR PASSENGER SEAT WITH REALLY NO WAY OUT... THERE IS NO REAR CARGO MANUAL DOOR RELEASE EITHER... MOST ADULTS COULD NOT G…
Read full complaint
PROBLEM: REAR PASSENGER DOORS WHEN DRIVING IN WET MUD,SLUSH FREEZE REAR PASSENGER DOORS SHUT IN FREEZING WEATHER... YOU CAN NOT GET DOORS OPEN FROM INSIDE OR OUT.... CHILDREN OR ADULTS WILL BE TRAPPED INSIDE REAR PASSENGER SEAT WITH REALLY NO WAY OUT... THERE IS NO REAR CARGO MANUAL DOOR RELEASE EITHER... MOST ADULTS COULD NOT GET OVER SEAT FRONT OR REAR SEAT TO TRY AND EXIT VEHICLE ANYWAY.... THIS DOOR FREEZING HAS HAPPENED TO ME (3) TIMES WHEN DRIVING ON WET SLUSH OR MUDDY ROADS IN FREEZING WEATHER......THE REAR DOORS TAKE IN THESE ELEMENTS BECAUSE OF POOR DESIGNED REAR DOOR SEALS... WHEN I SAY FROZEN SHUT, I MEAN REALLY FROZEN.... THESE ELEMENTS ALSO MAKE IT INTO THE SIDES OF THE REAR SEATS.... I WILL REPORT THIS CONDITION TO GM HUMMER BUT I BELIEVE I'LL ONLY GET A RUN AROUND.... I FEEL THIS COULD BE A DEATH TRAP FOR CHILDREN OR ANYONE... THANK YOU FOR YOUR TIME.... IF YOU CAN PLEASE DO SOMETHING ABOUT THIS ISSUE..... *TR
CURTAIN AIRBAGS DEPLOY WITHOUT REASON GOING DOWN INTERSTATE 64. ONLY THE CURTAIN AIRBAGS DEPLOY. MY HUMMER H3 IS AT THE HALL CHEVROLET CHESAPEAKE VA WHERE THEY RUN A FULL DIAGNOSTIC CHECK AND CHECK FOR ANY DAMAGE TO MY HUMMER. NO DAMAGE FOUND OTHER THEN THE CURTAIN AIRBAGS DEPLOYED AND THE DIAGNOSTIC CHECK CAME BACK SHOWING NO …
Read full complaint
CURTAIN AIRBAGS DEPLOY WITHOUT REASON GOING DOWN INTERSTATE 64. ONLY THE CURTAIN AIRBAGS DEPLOY. MY HUMMER H3 IS AT THE HALL CHEVROLET CHESAPEAKE VA WHERE THEY RUN A FULL DIAGNOSTIC CHECK AND CHECK FOR ANY DAMAGE TO MY HUMMER. NO DAMAGE FOUND OTHER THEN THE CURTAIN AIRBAGS DEPLOYED AND THE DIAGNOSTIC CHECK CAME BACK SHOWING NO ERRORS. *TR
I OWN A 2008 HUMMER H3 ALPHA. THE PROBLEM IS EVERYTIME TIME I CLOSE THE DOOR THE HEATED SEAT SWITCH TURNS ON. TOOK IT TO THE DEALERSHIP AND THEY PUT A NEW SCREW IN THE SEAT PANEL BUT OF COARSE IT DID NOT FIX THE PROBLEM. WHAT TO DO.. *TR
TL*THE CONTACT OWNS A 2008 HUMMER H3. WHILE STOPPED, BOTH FRONT SIDE AIR BAGS DEPLOYED; THE DRIVER WAS INJURED AS A RESULT. THE VEHICLE WAS TAKEN TO A LOCAL REPAIR SHOP BUT THE FAILURE COULD NOT BE DIAGNOSED. THE AIR BAGS WERE REPAIRED. THE FAILURE MILEAGE WAS 28,329 AND THE CURRENT MILEAGE WAS APPROXIMATELY 30,000.
Official recalls
215V421000 · 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.
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
0No exact-year investigations in this snapshot.