2010 Hummer H3 problems
The Hummer H3 is an off-road vehicle that was produced from 2005 to 2010 by General Motors. The smallest model of the Hummer lineup, it was offered as a 5-door SUV or a 4-door pickup truck known as the H3T. Unlike the larger H1 and H2 models, the H3 was not developed by AM General. It was introduced for the 2006 model year, based on a modified GMT355 that underpinned the Chevrolet Colorado/GMC Canyon compact pickup trucks that were also built at GM's Shreveport Operations in Shreveport, Louisiana and the Port Elizabeth plant in South Africa. While mechanically related to the Colorado and Canyon, GM claims they share only 10% of their components, with the chassis modified and reinforced for heavy off-road duties.
Powertrains
The H3 was launched with a 3.5 liter straight-5 cylinder L52 engine that produced 220 hp (160 kW) and 225 lbf⋅ft (305 N⋅m) of torque and was mated to a standard five-speed Aisin AR5 manual transmission or an optional Hydra-Matic 4L60-E four-speed automatic transmission. In 2007 this engine was replaced by the 3.7 liter LLR that produced 242 hp (180 kW) and 242 lbf⋅ft (328 N⋅m) of torque, figures that were revised in 2009 to 239 hp (178 kW) and 241 lbf⋅ft (327 N⋅m). Under revised EPA testing standards when equipped with either transmission this straight-5 engine achieved 14 mpg‑US (17 L/100 km) in the city and 18 mpg‑US (13 L/100 km) on the highway with a combined average of 15 mpg‑US (16 L/100 km).
Available solely with the 4L60-E automatic transmission, a 5.3 liter LH8 V8 engine producing 300 hp (224 kW) and 320 lbf⋅ft (434 N⋅m) of torque was added in 2008 for the Alpha model. The V8 version had lower fuel economy, estimated at 13 mpg‑US (18 L/100 km) in the city, 16 mpg‑US (15 L/100 km) on the highway, with a combined average of 14 mpg‑US (17 L/100 km).
In 2007, a H3X edition was added. It included the luxury package, 18-inch chrome wheels with unique center caps, chrome trim, chrome tube steps, a body-colored grille and a hard tire cover. The H3X also came with exclusive colors of Sonoma Red Metallic or Desert Orange Metallic.
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Common 2010 Hummer H3 problems
Based on the complaints from owners of the Hummer H3 2010, here are some common problems reported:
- Suspension Issues: Owners have reported problems with the suspension system, including uneven tire wear and excessive play in the steering wheel. This issue is often caused by worn or damaged suspension components like shocks or struts.
- Engine Problems: Some owners have experienced issues with the engine, such as reduced power and rough idling. This problem is often attributed to faulty spark plugs or fuel injectors.
- Brake Problems: Reports indicate issues with the brakes, including a spongy pedal and reduced stopping power. This problem is often due to worn or damaged brake pads or rotors.
- Electrical Problems: Owners have reported various electrical system issues, including malfunctioning power windows and door locks, as well as problems with the radio and climate control system.
To address these issues effectively, owners of the Hummer H3 2010 should consider having their vehicle serviced by a qualified mechanic. Regular maintenance and timely repairs can help prevent further damage and ensure the longevity of the vehicle.
Is a 2010 Hummer H3 reliable?
The Hummer H3 enjoys fair reliability ratings. The latest model (2010) scored a reliability score of 3 out of 5. The 2006 model has the highest reliability ratings. It also nabbed a 5-star rating for both driver and rear passenger side crash simulations conducted by the National Highway Traffic Administration (NHTSA).
Do Hummer H3 have transmission problems?
One of the most common Hummer H3 transmission problems is the complete failure of 3rd and/or 4th gear. This happens because one or more of the metal clutch discs inside the 4L60E 3-4 clutch pack can fail prematurely and prevent the transmission from engaging those gears.
How long do Hummer H3 engines last?
Hummer H3 is nearly as popular and durable as the models before it. And by looking at the ling life of the previous hummers, you can easily say that this one would perform the same. However, H3 is rated for 300,000 miles by the company.
Is a Hummer H3 a safe car?
Safety features that come standard include StabiliTrak electronic stability control, antilock brakes (ABS), traction control, frontal and side-impact airbags (torso protection) for the driver and front-seat passenger, and a tire-pressure monitoring system.
2010 Hummer H3 car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Hummer H3 problems, we found that the most common problems with these 2023 model year vehicles are:
- Electrical system problems
- Power train problems
- Engine problems
- Visibility problems
- Structure problems
The graph below shows statistics for all 2010 Hummer H3 vehicle components and the number of complaints received.
2010 Hummer H3 complaints
The NHTSA has received 7 complaints about various vehicle components related to the 2010 Hummer H3.
POWER TRAIN PROBLEM
- Date Of Incident: 2024-02-20
- VIN: 5GTMNLEPXA8
- Components: POWER TRAIN
- Summary: My transfer case established a large fluid leak so I inspected it, the findings was a large hole in the main housing on the transfer case fluid was leaking out. The transfer case was removed and disassembled, and found that the 2 screws that hold the chain guide to the housing had backed out or fell out and let the chain guide fall down in to the gear mechanism and ground it up and broke the main case. In result was the quarter size hole in the housing of the transfer case allowing liquid to escape and damage the housing. Leaving me without a vehicle.
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2010-09-01
- VIN: 5GTMNGEE5A8
- Components: ELECTRICAL SYSTEM
- Summary: TL* THE CONTACT OWNS A 2010 HUMMER H3. ON MANY OCCASIONS, THE VEHICLE WOULD NOT IMMEDIATELY START AND THE SECURITY INDICATOR ILLUMINATED. THE VEHICLE HAD BEEN SERVICED FOR THE SAME FAILURE MANY TIMES AT MARITIME MOTORS (985 POST RD, FAIRFIELD, CT). THE FUEL PUMP, ALTERNATOR, AND BATTERY WERE REPLACED DURING THE REPAIRS, BUT THE FAILURE CONTINUED. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED AND PROVIDED CASE NUMBER: 95570738708. THE FAILURE MILEAGE WAS 200.
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2018-11-11
- VIN: 5GTMNGEE6A8
- Components: ELECTRICAL SYSTEM
- Summary: THE VEHICLE SOMETIMES WILL NOT START DUE TO A PROBLEM WITH THE SECURITY SENSOR IN THE IGNITION SWITCH. THIS IS WHEN STARTING UP THE VEHICLE AND WILL ONLY PERIODICALLY OCCUR. THE SECURITY SYSTEM LIGHT COMES ON AND YOU HAVE TO WAIT 10 MINUTES TO START THE VEHICLE, THEN IT WILL START. IT HAS HAPPENED IN THE SUMMER AND NOW THE WINTER.
ENGINE PROBLEM
- Date Of Incident: 2014-11-03
- VIN: 5GTMNGEE4A8
- Components: ENGINE
- Summary: WHILE I WAS ON THE ROAD GOING HOME I NOTICED THAT MY TEMPERATURE WAS SLOWLY RISING THEN ALL OF A SUDDEN MY ENGINE ROOM WAS SMOKING I PULLED ASIDE AND LOOKED AT THE ENGINE ROOM THE SMOKE WAS CAUSED BY THE RADIATOR LEAKING ON FRONT TOP COVER OF RADIATOR WAS CRACKED... DON'T GET ME WRONG BUT I NEVER DID 4 WHEELING ON MY HUMMER I DRIVE IT FOR MY EVERYDAY COMMUTE THAT'S ABOUT IT...UPON CHECKING ON BLOGS OF OTHER HUMMER OWNERS THEY SAY ITS A COMMON PROBLEM THAT'S WHY I WAS AMAZED THAT IT WASN'T A PART OF ANY RECALLS I COULD HAVE JUST IMAGINED IF IM DOING 4WHEELING WELL ANYWAYS WHEN I WENT TO THE DEALERSHIP FOR REPAIRS CAUSE IM CONFUSED ALSO ON THEIR POWERTRAIN WARRANTY CAUSE THE FIRST SENTENCE SAYS RADIATOR IS INCLUDED BUT THE SUCCEEDING PARAGRAPHS SAYS OTHERWISE...SINCE ITS A COMMON KNOWN ISSUE AND BELIEVE ME THIS THE ONLY PART OF HUMMER THAT DEALERSHIP STOCK IN THEIR INVENTORY SHOULD IT BE IN A RECALL NOTICE OR AT LEAST HAVE GM REVIEW IT CAUSE THE WAY I SEE WHY THE CRACK ON THE RADIATOR HAPPENED WAS BECAUSE OF THE FLAW OF THE DESIGN OF RADIATOR SUPPORT THE METAL LIP ON IT RUBS ON FRONT TOP COVER PORTION SO EVENTUALLY THIS WILL GIVE IN PLASTIC VS METAL WE ALL KNOW WHOSE GONNA WIN BUT DID AM GENERAL KNOWS THIS....MY ANSWER DEFINITELY LIKE WHAT I HAD MENTIONED ALREADY AND TRIED AT LEAST 15 DEALERSHIP (FROM CALIFORNIA TO TEXAS TO NEWJERSEY AND MICHIGAN)THAT CATERS TO HUMMER LINE ALL OF THEM HAVE ONE THING IN COMMON THEY STOCK RADIATORS FOR HUMMER H3S... *TR
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2015-01-11
- Fire: 1
- VIN: 5GTMNJEE7A8
- Components: ELECTRICAL SYSTEM
- Summary: MY HEATING AND AC BLOWER MOTOR STOPPED WORKING ON A VEHICLE THAT HAS LESS THAN 31K MILES ON IT. THE ESTIMATED REPAIR COSTS ARE 500$, NOT INCLUDING THE TOW, BEING THAT IT IS THE MIDDLE OF WINTER AND THE CLOSEST DEALERSHIP IS 20 MILES AWAY. ADDITIONALLY, THE TIME OFF OF WORK AND EBING WITHOUT A CAR FOR A WEEK. I HAVE HEAVILY RESEARCHED THIS ISSUE AND IT HAS BEEN REPORTED THOUSANDS OF TIMES AND IS A WELL KNOWN ISSUE AND GM HAS NOT ISSUED A RECALL. THE PROBLEM IS THAT A FAULTY ELECTRICAL SHORT CAUSES A WIRING HARNESS TO MELT, (SMOKING) WITH A BURNING SMELL AND BLACK RESIDUE. THIS IS A MAJOR FIRE HAZARD AND THE RECOMMENDED FIX FROM THE DEALERSHIP ONLY REPLACES THE HARNESS, BUY DOES NOT ADDRESS THE CORE ISSUE CAUSING THE FIRE HAZARD. THIS IS LIKE REPLACING BURNT DRYWALL TO ADDRESS FAULTY HOUSE WIRING . *TR
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2013-06-13
- VIN: 5GTMNGEE5A8
- Components: ELECTRICAL SYSTEM
- Summary: I WAS DRIVING HOME AND THE FAN ON THE A/C STOPPED WORKING. SHORTLY AFTERWARD I DETECTED A BURNING ODOR. I ENDED UP REPLACING THE RESISTOR AND WIRING HARNESS FOR THE A/C BLOWER MOTOR. THE RESISTOR WAS BURNT AND THE HARNESS WIRE WAS SLIGHTLY MELTED. I AM CONCERNED ABOUT THE POTENTIAL FOR A FIRE IF THIS HAPPENS AGAIN. *TR
VISIBILITY,STRUCTURE PROBLEM
- Date Of Incident: 2010-07-26
- VIN: 5GTDN13E778
- Components: VISIBILITY,STRUCTURE
- Summary: SUN GLARE REFLECTS OFF THE CHROME PART PLACED ON THE ENGINE HOOD AND QUICKLY BLINDS THE DRIVER FOR SHORT PERIODS OF TIME CAUSING VERY DANGEROUS ROAD DRIVING CONDITIONS. *TR
2010 Hummer H3 recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 2 recalls for different components of the 2010 Hummer H3.
- Manufacturer: General Motors LLC
- Components: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR
- Summary: 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: 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.
- Manufacturer: GENERAL MOTORS CORP.
- Components: STRUCTURE:BODY:HOOD
- Summary: 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: 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.
Additional sources
More sources of information about 2010 Hummer H3 problems:
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Problem with your 2010 Hummer H3? Our list of 5 known complaints reported by owners can help you fix your 2010 Hummer H3.
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Other years of Hummer H3
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