NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
52 reportsClear category filter74,188 miles · Nov 19, 2014
Engine
ROUGH IDLE, ENGINE LIGHT APPEARS. IN PAST HAVE BEEN TOLD HAVE BEEN TOLD GAS CAP RELATED OR POSS THERMOSTAT OR INTERMIT MISFIRE. TODAY DEALERSHIP SAYS CYLINDER #2 NOT WORKING. NEED TO REPLACE. AT A COST OF $3000+. RELATED TO L52 ENGINE CONCERNS & INTAKE VALVE SEATS. INCLUDING COLORADO & CANYONS. WHY ARE SOME RECALLED, AND/OR…
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ROUGH IDLE, ENGINE LIGHT APPEARS. IN PAST HAVE BEEN TOLD HAVE BEEN TOLD GAS CAP RELATED OR POSS THERMOSTAT OR INTERMIT MISFIRE. TODAY DEALERSHIP SAYS CYLINDER #2 NOT WORKING. NEED TO REPLACE. AT A COST OF $3000+. RELATED TO L52 ENGINE CONCERNS & INTAKE VALVE SEATS. INCLUDING COLORADO & CANYONS. WHY ARE SOME RECALLED, AND/OR FIXED ON MANUFACTURER'S DIME, BUT NOT OTHERS? GM KNEW OF CONCERN, (THUS CHANGED TO LLR ENGINE). MINE FITS THE YEAR AND WELL BELOW THE VIN #. WHY SHOULD 287591 H3 OWNERS HAVE TO PAY FOR GM'S MISTAKE? *TR
NHTSA ODI #10659380
85,000 miles · Oct 2, 2014
EngineVehicle Speed Control
TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT THE VEHICLE ACCELERATED INDEPENDENTLY AND STALLED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 85,000.
NHTSA ODI #10640837
70,000 miles · Jun 23, 2014
Engine
OWN HUMMER H3 2006. RANDOMLY, TRACTION, FAILURE,REDUCED,POWER,STAB SYS, SERVICE. WHEN THIS HAPPENS, THE CAR CAN BE DRIVEN ONLY AROUND 40 MILE PER HOUR WHICH IS VERY DANGEROUS ON FREE WAY. IT ONLY HAPPENS RANDOMLY. USUALLY AFTER RAIN OR COLD WEATHER. BUT THE DEALERSHIP SAID THEY CANNOT REPRODUCE THE PROBLEM. CALLED GM, THEY TOLD …
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OWN HUMMER H3 2006. RANDOMLY, TRACTION, FAILURE,REDUCED,POWER,STAB SYS, SERVICE. WHEN THIS HAPPENS, THE CAR CAN BE DRIVEN ONLY AROUND 40 MILE PER HOUR WHICH IS VERY DANGEROUS ON FREE WAY. IT ONLY HAPPENS RANDOMLY. USUALLY AFTER RAIN OR COLD WEATHER. BUT THE DEALERSHIP SAID THEY CANNOT REPRODUCE THE PROBLEM. CALLED GM, THEY TOLD ME THEY CANNOT DO ANYTHING ALTHOUGH THEY SAY THERE IS AN INVESTIGATION AND THERE MIGHT BE FUTURE RECALL. *TR
NHTSA ODI #10605399
82,600 miles · May 28, 2014
Engine
TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT THE ENGINE WARNING LIGHT ILLUMINATED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO THE DEALER, WHO STATED THAT THE ENGINE HEAD AND/OR ANOTHER COMPONENT NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILU…
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TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT THE ENGINE WARNING LIGHT ILLUMINATED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO THE DEALER, WHO STATED THAT THE ENGINE HEAD AND/OR ANOTHER COMPONENT NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 82,600.
NHTSA ODI #10594612
125,000 miles · Apr 19, 2014
Engine
LEARNED THAT OUR VEHICLE WAS KNOWN TO GM IN 2008 THAT THEY HAD A DESIGN DEFECT THAT CAUSED PISTONS TO FAIL. THE CHECK ENGINE LIGHT CAME ON, WE WENT TO GM DEALERSHIP, CALLED THEIR CORPORATE OFFICES AFTER LEARNING THE KNEW OF THE PISTON DEFECT SINCE AT LEAST 2008. I'M SURE THEY HAVE REPLACED MILLIONS OF PISTONS DURING WARRANTY BU…
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LEARNED THAT OUR VEHICLE WAS KNOWN TO GM IN 2008 THAT THEY HAD A DESIGN DEFECT THAT CAUSED PISTONS TO FAIL. THE CHECK ENGINE LIGHT CAME ON, WE WENT TO GM DEALERSHIP, CALLED THEIR CORPORATE OFFICES AFTER LEARNING THE KNEW OF THE PISTON DEFECT SINCE AT LEAST 2008. I'M SURE THEY HAVE REPLACED MILLIONS OF PISTONS DURING WARRANTY BUT THE COST OF REPLACEMENT IS $5000. WE LEASED THIS VEHICLE FOR 3 YEARS AND ARE PURCHASING IT. GM REFUSED TO ASSIST US IN FIXING THIS ISSUE. THEY ARE DISHONEST AND UNPROFESSIONAL. HOW MANY VEHICLES IN THE US HAVE PISTON FAILURES AS A DESIGN DEFECT? THEY SHOULD HAVE ISSUED A RECALL. *TR
NHTSA ODI #10583674
85,000 miles · Apr 4, 2014
Engine
THE VEHICLE WAS PURCHASED USED ON A SATURDAY WITH THE DEALERSHIP NOT ADVISING US THERE WERE ANY ISSUES. THE NEXT DAY WE HEADED TO THE LAKE AND 20 MINUTES LATER WE WERE SITTING ON THE SIDE OF THE ROAD. THE VEHICLE WAS IDLING VERY HARD WITH RPM GOING CRAZY. NOW OVER A YEAR AND SEVERAL VISITS TO THE SHOP LATER WE ARE STILL EXPERIEN…
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THE VEHICLE WAS PURCHASED USED ON A SATURDAY WITH THE DEALERSHIP NOT ADVISING US THERE WERE ANY ISSUES. THE NEXT DAY WE HEADED TO THE LAKE AND 20 MINUTES LATER WE WERE SITTING ON THE SIDE OF THE ROAD. THE VEHICLE WAS IDLING VERY HARD WITH RPM GOING CRAZY. NOW OVER A YEAR AND SEVERAL VISITS TO THE SHOP LATER WE ARE STILL EXPERIENCING THE SAME ISSUE. WHEN THE VEHICLE IS INITIALLY TURNED ON IT WILL NOT MOVE. IT HAS TO SIT FOR ABOUT 3 MINUTES WITH THE ENGINE LIGHT FLASHING. IF YOU TRY TO PUSH THR GAS NOTHING HAPPENS. THE VEHICLE IDLES VERY HARD. IT IS ONLY FIRING ON 4 CYLINDERS AND THE DEALERSHIP SAYS THAT GM IS AWARE OF THE ISSUE. THEY SAID IT IS A "BAD BATCH" AND WILL JUST HAVE TO KEEP REPLACING THE HEAD TO FIX THE PROBLEM. THIS IS NOT FAIR TO THE CONSUMER AND NEEDS TO BE ADDRESSED BY GM. *TR
NHTSA ODI #10577480
66,104 miles · Apr 1, 2014
Electrical SystemEnginePower Train
WHILE DRIVING AT 45MPH ALL SYSTEMS SHUT OFF. NO POWER STEERING NOTHING. THE CAR WOULD NOT RESTART. THIS HAPPENED MULTIPLE TIMES WITH OUT WARNING. *TR
NHTSA ODI #10576491
89,000 miles · Mar 10, 2014
Electrical SystemEngineService Brakes
CAR HAS BEEN SPONTANEOUSLY STALLING WHILE DRIVING AT HIGH SPEEDS. ENGINE CUTS OUT, POWER BRAKES AND STEERING FAIL, NO RADIO, ETC. VEHICLE LOSES ALL POWER. IT IS TERRIFYING. HAS HAPPENED AT LEAST 3 DOZEN TIMES NOW. SEVERAL VISITS TO DEALER COULD NOT PINPOINT PROBLEM. DEALERS UNABLE TO DUPLICATE STALLING, ALTHOUGH IT HAS HAPPENED …
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CAR HAS BEEN SPONTANEOUSLY STALLING WHILE DRIVING AT HIGH SPEEDS. ENGINE CUTS OUT, POWER BRAKES AND STEERING FAIL, NO RADIO, ETC. VEHICLE LOSES ALL POWER. IT IS TERRIFYING. HAS HAPPENED AT LEAST 3 DOZEN TIMES NOW. SEVERAL VISITS TO DEALER COULD NOT PINPOINT PROBLEM. DEALERS UNABLE TO DUPLICATE STALLING, ALTHOUGH IT HAS HAPPENED TO ME REGULARLY FOR MONTHS - IE, EVERY TIME I DRIVE THE CAR (WITH MY TWO BABIES) FOR AN EXTENDED PERIOD ON THE HIGHWAY. *TR
NHTSA ODI #10568195
125,000 miles · Feb 5, 2014
Engine
OWNED THE CAR SINCE 2006 WITH NO PROBLEMS--REGULARLY MAINTAINED, 125,000 MILES. MY WIFE TOOK IT TO THE SHOP WHERE SHE WAS TOLD THE ENGINE HAD "LOW COMPRESSION." AFTER THE REVIEW, THE MANAGER SAID HE HAD BAD NEWS, THAT THE CAR NEEDED TO BE TRADED IN/SOLD IMMEDIATELY AND NOT TO DRIVE IT UNTIL IT WAS BECAUSE THE PISTON WAS DEFECTI…
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OWNED THE CAR SINCE 2006 WITH NO PROBLEMS--REGULARLY MAINTAINED, 125,000 MILES. MY WIFE TOOK IT TO THE SHOP WHERE SHE WAS TOLD THE ENGINE HAD "LOW COMPRESSION." AFTER THE REVIEW, THE MANAGER SAID HE HAD BAD NEWS, THAT THE CAR NEEDED TO BE TRADED IN/SOLD IMMEDIATELY AND NOT TO DRIVE IT UNTIL IT WAS BECAUSE THE PISTON WAS DEFECTIVE. I VERIFIED THE RESULTS WITH 2 OTHER MECHANICS THAT THE 5 CYLINDER H3S LOSE COMPRESSION OUT THE BLUE. THE SHOP MANAGER BASICALLY TOLD ME THAT I NEED TO SELL/TRADE IN THE VEHICLE, BUT NOT TO DRIVE IT UNTIL I HAD DONE SO, APPARENTLY THIS ISSUE HAS HAPPENED TO 06 H3S RELIGIOUSLY WHERE THE COMPRESSION DIMINISHES AND LEADS TO THE ENGINE DYING. WE FEEL LIKE WE'VE BEEN PUNCHED IN THE GUT BY HUMMER. HOW CAN A CAR PERFECTLY MAINTAINED ALL OF A SUDDEN HAVE "LOW COMPRESSION" AND LEAD 3 PROFESSIONALS TO ADVISE US TO SELL IT IT AS SOON AS POSSIBLE? THIS HAS BEEN KNOWN BY HUMMER (PIP3935D) AND THEY DID NOTHING ABOUT IT. WE CALLED GM AND THEY WANTED TO LOOK AT THE ENGINE TO DIAGNOSE IT THEMSELVES. PISTONS 2 AND 3 WERE BAD. OUR VIN NUMBER IS COVERED BY THE PIP3935D BUT THE DEALERSHIP REFUSED TO ACKNOWLEDGE THIS. THEY REFUSED TO ASSIST US UNLESS WE PAID $6000 FOR THE "REPAIR"--BUT THIS ISSUE WILL RE-OCCUR. I HAVE MADE A CALL TO GM CORPORATE BUT HAVE YET TO RECEIVE A REPLY. IN THE MEANTIME WE STILL OWE OVER $4000 ON THIS VEHICLE THAT WE LEASED IN 2006, THEN PURCHASED. OUR VEHICLE IS UNSELLABLE AND WE DON'T HAVE $6000 TO FIX THIS KNOWN HUMMER 2006 H3 DEFECT. GM HAS BEEN AWARE OF THE DEFECT SINCE 2008 AND REFUSES TO ACT LIKE PROFESSIONAL, UNDERSTANDING, COMPASSIONATE INDIVIDUALS. I WILL NEVER PURCHASE OR RECOMMEND THE PURCHASE OF A GM AGAIN BASED ON THIS LIFE-CHANGING EXPERIENCE. HOW CAN A DEALERSHIP (THAT THE US GOVERNMENT BAILED OUT OF BANKRUPTCY) TREAT ITS CUSTOMERS THIS WAY? WE HAVE SPENT $30,000++ SINCE LEASING/PURCHASING IT IN 2006. *TR
NHTSA ODI #10563185
125,000 miles · Jan 17, 2014
Engine
OWNER THE CAR SINCE 2006 WITH NO PROBLEMS--REGULARLY MAINTAINED, 125,000 MILES. AFTER A RECENT LONG TRIP MY WIFE TOOK IT TO THE SHOP WHERE SHE WAS TOLD THE ENGINE HAD "LOW COMPRESSION." THE SHOP WAS TRUSTED 100% AND BEEN USED FOR DECADES. SERVICE MANAGER SAID THEY WOULD SEE WHAT THEY COULD DO ABOUT THE LOW COMPRESSION AND THAT …
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OWNER THE CAR SINCE 2006 WITH NO PROBLEMS--REGULARLY MAINTAINED, 125,000 MILES. AFTER A RECENT LONG TRIP MY WIFE TOOK IT TO THE SHOP WHERE SHE WAS TOLD THE ENGINE HAD "LOW COMPRESSION." THE SHOP WAS TRUSTED 100% AND BEEN USED FOR DECADES. SERVICE MANAGER SAID THEY WOULD SEE WHAT THEY COULD DO ABOUT THE LOW COMPRESSION AND THAT THEY WOULD HAVE TO CHECK EACH OF THE PISTONS. AFTER THE REVIEW, THE MANAGER SAID HE HAD BAD NEWS, THAT THE CAR NEEDED TO BE TRADED IN/SOLD IMMEDIATELY AND NOT TO DRIVE IT UNTIL IT WAS. I VERIFIED THE RESULTS WITH 2 OTHER MECHANICS THAT THE 5 CYLINDER H3S LOSE COMPRESSION OUT THE BLUE--COMMON AMONG 5 CYLINDER H3S. THE SHOP MANAGER BASICALLY TOLD ME THAT I NEED TO SELL/TRADE IN THE VEHICLE, BUT NOT TO DRIVE IT UNTIL I HAD DONE SO, APPARENTLY THIS ISSUE HAS HAPPENED TO 06 H3S RELIGIOUSLY WHERE THE COMPRESSION DIMINISHES AND LEADS TO THE ENGINE DYING. . IT'S A POSSIBLE TO BUY A USED ENGINE WITH THE POSSIBILITY THAT THE COMPRESSION COULD DIE AGAIN. NEEDLESS TO SAY, WE FEEL LIKE WE'VE BEEN PUNCHED IN THE GUT BY HUMMER. HOW CAN A CAR PERFECTLY MAINTAINED ALL OF A SUDDEN HAVE "LOW COMPRESSION" AND LEAD 3 PROFESSIONALS TO ADVISE US TO SELL IT L IT AS SOON AS POSSIBLE? THIS HAD TO HAVE BEEN KNOWN BY HUMMER AND THEY DID NOTHING ABOUT IT. MEANTIME, WE ARE PROBABLY OVER/UNDER ON THE VEHICLE AND WILL HAVE TO GET RID OF IT. *TR
NHTSA ODI #10560454
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 ↗