| 1 | 0 | 3 | 4 | 3 | 4 |
Hummer H3 repairs by problem area
Engine (33%)
Transmission and Drivetrain (16%)
Brakes and Traction Control (4%)
Suspension and Steering (12%)
Electrical and Air Conditioning (21%)
Paint, Rust, Leaks, Rattles, and Trim (10%)
Other (3%)
Chart based on 275 repairs.
Hummer H3 repair cost distribution
$2500+ (7%)
$1000 - $2499 (9%)
$500 - $999 (12%)
$100 - $499 (27%)
< $100 (46%)
Chart based on 198 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2009 Hummer H3 4dr SUV
295-horsepower 5.3L V8 4-speed automatic AWD w/low range
| Hummer H3 in California, United States Jun 2013 - Jul 2020 | |||
| Aug 201344000 miUS $2400 | washer pump would not spray fluid onto the windshield trans cooler leaked water into transmission- required new trans cooler and transmission rebuild | ||
| May 2018106000 mi | Heater/AC blower motor needed to be removed, lubricated and re-installed | ||
| Jun 2018110000 miUS $60 | AC recharge (first time) | ||
| Jul 2020143000 miUS $199 | blower motor emplacement | ||
2008.5 Hummer H3 4dr SUV
| Hummer H3 in California, United States Apr 2022 - Apr 2023 | |||
| Jun 2022112000 miUS $2000 | Transmission rebuilt. Cost was $2000. | ||
2008 Hummer H3
Engine not specified
| Hummer H3 in Ontario, Canada Dec 2012 - Jan 2013 | |||
| Jan 2013C $460 | Check engine light stays on. | ||
2008 Hummer H3 4dr SUV
295-horsepower 5.3L V8 4-speed automatic AWD w/low range
| Hummer H3 in Alabama, United States Sep 2013 - Jan 2015 | |||
| Oct 201363300 mi | AC control module failed to blend hot and cold. Control module replaced. Buttons malfunctioning on radio. Radio replaced. | ||
| Jan 201465300 mi | Right front CV boot damaged. Entire axle assembly replaced | ||
| Mar 201467000 mi | Transfer case sensor error. Broken ground wire found in the harness. Harness replaced. | ||
| Jan 201565000 miUS $1750 | Torn inner and outer cv boots driver side Top of radiator leaking because of no padding on upper retaining bracket. Original OEM design and install. DTC P0121. tech found the throttle body bad. | ||
| Hummer H3 in Maryland, United States Mar 2011 - Jun 2022 | |||
| Jul 201147000 mi | Total engine failure, 5.3L V8 | ||
| Apr 201393700 mi | Differential gasket leaking Oil Pan Gasket needed replacing, oil leak Replaced Shocks Replaced cat back exhaust | ||
| Jan 201490800 miUS $15 | small coolant leak | ||
| May 2014120000 miUS $25 | Simple preventative maintenance- Oil Change, air filter cleaning (k&N) and MAF and throttle body cleaning (rough idle) | ||
| Jun 2015130000 miUS $285 | Warped rotor, front passenger side caliper frozen | ||
| Oct 2015134700 miUS $368 | Starter replacement | ||
| Aug 2016149000 miUS $250 | Heat shield on catalytic converter came loose (rusted weld), put exhaust strap on it. | ||
| Sep 2016149000 miUS $800 | Had to replace front wheel hub | ||
| Oct 2016150000 miUS $1250 | Replaced cracked radiator | ||
| May 2017162000 miUS $700 | The Pass-Lock system was malfunctioning and I could not remove the key despite being in park. In addition, there was a passenger side leak (floor was getting saturated) in rain and had to replace weather stripping | ||
| Aug 2017166000 miUS $750 | Replaced transmission cooling lines that were leaking | ||
| Sep 2017166000 miUS $79 | the parking brake would not fully engage (car would roll slowly until the transmission stopped it), when attempting to tighten the cable the adjustment parts were found to be rusted and snapped when attempt was made | ||
| Dec 2017171000 miUS $600 | driver's side axle seal replacement due to corrosion and ds wheel hub due to noise and excess movement. | ||
| Feb 2018176000 miUS $1600 | The vehicle went in for broken exhaust manifold bolts and an exhaust leak. I decided to replace both exhaust manifolds due to the age of the car but technically they were not required. Upon working on the car the mechanic noticed an extremely rust steering shaft which I decided to replace | ||
| Apr 2018176000 miUS $8500 | I had a lifter freeze and destroy the cam lobe. The noise was hidden by the exhaust leak and became very apparent when exhaust was fixed. I could have replaced the lifter and cam but chose to replace the motor due to high mileage and metal particles in the oil. The cost of the motor replacement would have been $7k but I chose to replace all hoses, alternator, water pump, thermostat, fan clutch , plugs, coils, etc. If I had just done the lifter and cam the cost woudl have stayed around $1k | ||
| Hummer H3 in California, United States Mar 2013 - Dec 2020 | |||
| Apr 2016110000 mi | Both of my Hummer H3's had the burning smell and melted the connector that went to the resistor in the HVAC. It is now a recall for all Hummer H3. | ||
| Hummer H3 in Pennsylvania, United States Sep 2013 - Aug 2016 | |||
| Feb 2014142100 miUS $7500 | #5 bearing spun. Full engine replacement. | ||
| Oct 2014157500 miUS $1000 | Drivers front axle replaced. Axle wear could not keep seal. | ||
| Hummer H3 in Maryland, United States Sep 2013 - Mar 2015 | |||
| Oct 2014165000 miUS $350 | Master cylinder appeared to have stuck or open valve which resulted in a pedal to the floor condition. Knocking on it would free it temporarily. | ||
2008 Hummer H3 4dr SUV
242-horsepower 3.7L I5 5-speed manual AWD w/low range
| Hummer H3 in Delaware, United States Dec 2015 - Feb 2022 | |||
| Aug 2016105000 miUS $1 | Radiator needed to be replaced | ||
2008 Hummer H3 4dr SUV
242-horsepower 3.7L I5 4-speed automatic AWD w/low range
| Hummer H3 in Maine, United States May 2011 - Oct 2011 | |||
| Jul 201130000 mi | Passenger tail light out from fuse that kept blowing, faulty wire found and fixed. 500 mile drive in 100+ temps, AC began blowing white smoke through center vents, could smell something burning. Turned AC off and turned it on the next day, no problems. Took it to dealer, problem could not be replicated. | ||
| Hummer H3 in Michigan, United States Dec 2010 - Jun 2018 | |||
| Dec 201128000 mi | Rear Camera in mirror does not operate compass & temp stop working and cruse control not working. It comes & goes. dealer said it was because of a aftermarket starter/Alarm this was the easy way out.I then took Truck to Alarm company | ||
| Nov 201445000 miUS $170 | Engine service light replace Gas Cap.1st. according to repair manual. Then had to replace Gas tank Pressure valve at gas tank. New Battery | ||
| Dec 201654000 miUS $30 | Muffler Heat shield clamp broke & had to be replaced. | ||
| Jun 201859000 miUS $5900 | tires & rims Chrome coming off old rims. Lub Eng,Front & rear Diff,Transfer case & Auto Trans. brake lines fuel inj flush | ||
| Hummer H3 in Ohio, United States Sep 2011 - Jun 2014 | |||
| May 201477000 miUS $100 | Steering column intermediate shaft failure. Difficult steering off center and no on center feel. | ||
| Jun 201477000 mi | Occasional engine loss of power under high steering load when just starting up after about a week of sitting. | ||
| Hummer H3 in Maryland, United States Jul 2013 - Aug 2013 | |||
| Aug 201354000 miUS $748 | Radiator cracked at top causing leak. Vehicle also has a rough idle. Cause of Idle unknown | ||
| Hummer H3 in New Jersey, United States Jan 2021 - Feb 2023 | |||
| May 202197000 miUS $240 | Inner tie rods needed replacement. | ||
| Jul 202197000 miUS $524 | Front right bearing needed replacement. | ||
| Jan 2022103000 miUS $250 | Engine started running warm on warmer days. Thermostat needed to be replaced. | ||
| Jan 2023109000 miUS $500 | Front differential bushings were shot and needed replacement. | ||
| Feb 2023111000 miUS $1200 | Both front wheel bearings were worn and needed replacement. | ||
2007 Hummer H3
Engine not specified
| Hummer H3 in Florida, United States Nov 2010 - Jun 2011 | |||
| Dec 201047000 mi | Driver door switch was corroded "doors" DIC would not turn off nor would interior lights extinguish. removed door switch, cleaned contacts and coated with a light coat of WD-40. Works perfectly now. Took 1 hr and checked all doors. | ||
2007 Hummer H3 4dr SUV
242-horsepower 3.7L I5 5-speed manual AWD w/low range
| Hummer H3 in Massachusetts, United States Mar 2010 - Jun 2018 | |||
| Dec 201166000 miUS $180 | Rear U joint failed ten days out of five year warranty, had my local shop change both U joints on shaft, one that failed is greasable, non failed is non greasable, same job would have cost $580.00 at local dealer with truck just 10 days oow | ||
| Jun 201270000 miUS $138 | OEM battery died, side walls were bulged out, plates failure | ||
| Dec 201278000 miUS $325 | Master window control driver side failed, driver window would not work and power door locks would not work | ||
| Jan 201378000 mi | Parisitic discharge from battery drain.If car not driven daily, battery will die on start.Thought problem would resolve after master window switch replaced.On battery number 3, warranty replaced twice.Will try to find drain this weekend. | ||
| Feb 201378500 mi | Seat trim was causing parasitic drain on battery. It was cracked and constantly pressing down on the power seat button. Realigned the plastic trim and screwed it into place, the drain on battery was resolved. | ||
| Jul 201382000 miUS $300 | Servo valve in sensor showed engine light, design change made a $100 part cost $200 with $100 installation. | ||
| Nov 201387000 miUS $650 | Driver side front wheel bearing with TPM retails over $400 for part $650 with oil change and tire rotation (5) | ||
| Jan 201480000 miUS $300 | Emergency brake cable frayed and was not releasing, put on helper spring, still would hang up, plastic handle broke off, had to replace handle and cable and cross cable | ||
| Mar 201490000 miUS $600 | Passenger side front wheel bearing with 7 year warranty | ||
| Sep 201495000 miUS $807 | Radiator needed to be replaced as well as a u joint. | ||
| Dec 2016115000 miUS $170 | Leaking boot driver side | ||
| Hummer H3 in Indiana, United States Apr 2012 - Apr 2012 | |||
| Apr 201275000 miUS $5000 | transmission went out, limped in | ||
| Hummer H3 in California, United States Feb 2015 - Dec 2015 | |||
| Mar 201567000 miUS $2600 | Cylinder number 5 misfiring, valves stuck. Entire block needed rebuilt. This is a common problem with this engine and GM is ignoring. | ||
| Hummer H3 in Virginia, United States Jun 2014 - Nov 2014 | |||
| Sep 201450000 miUS $850 | Due to a poorly designed sunroof draining sust leaks caused sensors to get wet and tripped the warning lights to ping ABS and stability system errors. | ||
| Hummer H3 in California, United States Apr 2014 - Nov 2019 | |||
| Mar 2015118000 miUS $55 | Water Pump leaking (bearing) | ||
| May 2015121000 miUS $1384 | Leaking out of the output transfer case seal, and clutch slip. | ||
| Feb 2016134300 mi | HVAC recall. Burning smell and melted the connector that went to the resistor in the HVAC. It is now a recall for all Hummer H3s. | ||
| Apr 2017160000 miUS $75 | Replace left FRT axle. | ||
2007 Hummer H3 4dr SUV
242-horsepower 3.7L I5 4-speed automatic AWD w/low range
| Hummer H3 in Pennsylvania, United States Apr 2011 - Apr 2012 | |||
| Nov 201169500 mi | Radiator went bad, and the Hummer dealer replaced it and flushed the cooling system for free.. Wright Hummer in Wexford PA is the best dealer I have seen that takes customer service serious.. They are #1. | ||
| Hummer H3 in Pennsylvania, United States Nov 2010 - Jun 2022 | |||
| Oct 201136300 mi | hard idle, replaced stock air intake with k/n air intake, also added g force power chip. idle now better, gas mileage up 6 to 7 m.p.g. | ||
| Oct 201348000 miUS $780 | Right side wheel brg. And hub assy. Broke.play as much as 2 " in wheel and tire when on lift. Rotate tires found problem.hummer drove as though there was nothing wrong,,wow. | ||
| Jun 201452000 miUS $786 | Cracked wheel bearing,passenger side. | ||
| Jul 201560000 mi | Relay and connector burned up, safety recall no parts to repair as of yet. Repaired myself for $35.00 only 2 speeds on motor, not four. A/c works good. Waiting for parts to fix the right way. | ||
| Sep 201668000 miUS $1100 | Drivers side wheel bearing,belt,rear brakes,alignment inspection,rear shocks. | ||
| Jan 201752500 miUS $300 | Pass lock system,replaced ignition tumbler. | ||
| Aug 201776000 miUS $1200 | Shocks,front, breaks front, tires all four. | ||
| Hummer H3 in Florida, United States Jun 2012 - Dec 2015 | |||
| Feb 201348200 mi | Catalytic converter was replaced. | ||
| Jul 201360000 miUS $240 | Can position sencor. Front axle replaced. Boot ripped. | ||
| Aug 201362000 miUS $285 | Sun roof drains plugged. | ||
| Feb 201598000 miUS $400 | Ball joint | ||
| Oct 2015109000 miUS $417 | Water pump replacing. No power on acceleration. Sluggish. Still dealing with it. | ||
| Nov 2015109000 miUS $777 | Loud rattling. Replaced motor mounts and transmission mount. | ||
| Dec 2015109000 mi | Starting to have transmission issues. | ||
| Hummer H3 in Illinois, United States Aug 2012 - Oct 2013 | |||
| Oct 201368000 miUS $50 | Engine Light On; vehicle running sluggish | ||
| Hummer H3 in Oregon, United States Jul 2012 - Jun 2016 | |||
| Sep 201374000 miUS $270 | wiring harness for dash ac/defrost/heat fan burned out and had to be replaced. | ||
| Feb 201586000 miUS $3899 | catalytic converter bracket broken. Bolts broken off in head. replaced head and catalytic converter because bracket and converter are one piece. | ||
| May 201697600 miUS $9000 | replaced power steering pump replaced radiator replaced engine, $6000 | ||
| Hummer H3 in New York, United States Jul 2010 - Sep 2013 | |||
| Jul 201385700 mi | Ruptured Flex Brake Hose to front right brake disc. Fluid leak/lost pressure and brakes | ||
| Aug 201388000 miUS $415 | Right/Front Axle Seal Leaking where axle enters differential | ||
| Hummer H3 in Texas, United States Jan 2009 - Aug 2011 | |||
| Apr 200947000 mi | Bad ball joint. Taken to dealer on first trip and he said there was no problem. Had Firestone do another alignment and they said once again that I had a bad ball joint! On second trip to dealer, they acknowledged problem. | ||
| Jul 200955000 mi | My torque converter went out. Grinding sound while in gear and stopped. | ||
| Aug 200956000 mi | Short in horn contacts at steering wheel. Dealer fixed by pulling on horn pad | ||
| Jun 201182000 miUS $600 | Overheating replaced radiator. | ||
| Hummer H3 in Texas, United States Apr 2009 - Jul 2013 | |||
| Dec 200923000 mi | They replaced the lower steering shaft. It was a known problem on the 07's per a TSB. | ||
| Jul 201139500 mi | Check engine light on. Small evap leak found. Smoke test. Dealer replaced vent solenoid and gas cap. Retested, no leaks found. | ||
| Dec 201145000 mi | Fuel gauge will read completely empty after filling up, or low after fill up. Once vehicle is turned off it will show correctly. This has happened at least 10 times since March 2011. | ||
| Hummer H3 in Ontario, Canada Nov 2009 - Oct 2013 | |||
| Oct 201161680 miC $350 | U joints on drive shaft had to be replaced | ||
| Hummer H3 in Indiana, United States Aug 2009 - Jun 2011 | |||
| Jun 201059000 mi | Exterior door handles breaking. The part that does not move has broken of of both passenger doors and the drivers side rear door over the past year. I have reattached with glue. Silaprene seems to work the best. | ||
| Hummer H3 in Arizona, United States Dec 2008 - Jul 2009 | |||
| Jan 200925000 mi | An occasional flicker noticed in the NAV screen | ||
| Hummer H3 in Kansas, United States Dec 2008 - Jun 2011 | |||
| Nov 200923000 mi | power outlet fuse was blown | ||
| Hummer H3 in British Columbia, Canada Sep 2012 - Dec 2016 | |||
| Apr 201380600 miC $200 | iner cv boot ripped open replaced cv axle with new. | ||
| Hummer H3 in Michigan, United States Sep 2012 - Jul 2013 | |||
| Jan 201369200 miUS $600 | Catastrophic water pump failure | ||
| Apr 201375300 miUS $200 | All 4 U-Joints went bad | ||
| Jun 201377000 miUS $100 | Lower radiator hose and thermostat | ||
| Hummer H3 in British Columbia, Canada Jun 2014 - Mar 2016 | |||
| Jun 201499200 miC $300 | Kept shutting down while driving, traction control failing, service stabilizers | ||
| Oct 2014105540 mi | Traction control failed | ||
| Nov 2014107840 miC $850 | broken water pump | ||
| Hummer H3 in Kansas, United States Dec 2012 - Dec 2015 | |||
| Jan 201390000 mi | Cylinder Head is bad. Needs to be completly replaced. Tire Pressure Monitor damaged. | ||
| Hummer H3 in New Jersey, United States - Oct 2007 | |||
| Oct 200715000 mi | tire pressure monitor light on. | ||
| Hummer H3 in Montana, United States Sep 2010 - Jun 2011 | |||
| Oct 201057300 mi | dic displays (doors) even though they are all shut | ||
| Hummer H3 in Montana, United States Mar 2017 - Apr 2017 | |||
| Apr 2017117000 miUS $500 | Rebuild front differential replace ring gear and all bearings and seals | ||
| Hummer H3 in South Africa Aug 2013 - Jan 2022 | |||
| Jul 201488020 mi | Transfer case chain. | ||
| Dec 2015109740 miR 150 | Transmission oil pipe chafing against the exhaust manifold, causing oil leak. Pipe replaced. | ||
| Feb 2016112840 miR 180 | Thermostat replacement. | ||
| Mar 2016115320 mi | Torque Convertor circuit open and Input Turbine Speed Sensors (P0716 and P0717 Powertrain codes). | ||
| Jun 2016119660 mi | Front Differential gears failure. New Front Differential installed. | ||
| Hummer H3 in Florida, United States Mar 2014 - Jun 2022 | |||
| Jul 201558200 miUS $1290 | Water pump replacement Expansion valve replacement | ||
| Mar 201667000 miUS $1200 | Radiator split apart and had to be replaced | ||
| Oct 201770000 miUS $870 | Needed new control head. System not cooling | ||
| Hummer H3 in Hawaii, United States Mar 2013 - Dec 2015 | |||
| Jun 201362000 miUS $2850 | Complete cylinder head replacement. Top engine tear-down and reassembly. Due to engine misfire fault code and rough idle concerns. Poor acceleration after long haults at stop signals. | ||
| Dec 201485000 miUS $250 | At 90000 miles Radiator's plastic top tank seams started leaking coolant and loss of cooling system pressure. | ||
| Jul 201592700 miUS $5000 | Poor engine cylinder head design at manufacturer. Engine studder and misfire at idle while in gear with foot on brake.Replaced cylinder head w/ new and problem returned after appx. 4000 miles. | ||
| Dec 2015100000 mi | HVAC system Heater temperature would not adjust to hothe settings. A very poor design of the sunroof water drainage system allows trapped water to enter the vehicle's interior,often leading to excessive moisture retention underneath the carpet and ultimately causing mold and stale odors inside cabin. | ||
| Hummer H3 in North Carolina, United States Jun 2013 - Jul 2013 | |||
| Jul 201358000 mi | Master cylinder failure - have to REPLACE Engine | ||
2007 Hummer H3 4-door
4-cylinder automatic AWD
| Hummer H3 in New York, United States Jan 2010 - Jun 2011 | |||
| Feb 201058000 mi | This is 2nd trip since 10/09 when engine blew at 53,000 mi. In Feb engine light came on. Car is still not running well difficult to get return call from GM. | ||
2006 Hummer H3
Engine not specified
| Hummer H3 in Louisiana, United States Sep 2007 - Mar 2010 | |||
| Oct 200715000 mi | REPLACED GAS PEDAL | ||
| Hummer H3 in New Jersey, United States May 2008 - Mar 2010 | |||
| Jun 200843000 mi | Started H3 and it shut down, would not start, called OnStar for diagnostic check, found ECM needed replaced as well as a new battery. Roll back picked it up and delivered to dealer. Did not cost me a dime. | ||
| Hummer H3 in Texas, United States Mar 2011 - May 2011 | |||
| Apr 201158000 mi | Crack in Transmission cooler, leaking fluid on ground. Coolant also leaking. Lights out in door window controls. Knobs on AC controls worn out. Dealer repaired (Demontrand Motors), who are idiots. | ||
| Hummer H3 in Georgia, United States Sep 2007 - Mar 2010 | |||
| Oct 200755000 mi | ABS and traction control lights came on. Took vehicle in and they discovered wheel bearing and hub assemblies needed replacing. Took two days to order parts and two trips to dealer. New wheel bearing and hub installed. | ||
| Hummer H3 in Texas, United States Feb 2010 - Jun 2010 | |||
| Mar 201055000 miUS $125 | Replaced HVAC wiring harness and relay. | ||
2006 Hummer H3 4dr SUV
220-horsepower 3.5L I5 5-speed manual AWD w/low range
| Hummer H3 in Pennsylvania, United States Apr 2006 - Mar 2010 | |||
| Feb 200713000 mi | Subwoofer making a buzzing sound. Wind noise from clearance light. Body plugs missing. | ||
| Mar 200715000 mi | Cracked roof rail. Defective stereo subwoofer. Installed missing body plugs (email 050207) Replaced cracked roof rail (email 050207) | ||
| Oct 200727000 mi | Driver side door gasket (small area) worn due to getting in and out of vehicle. | ||
| Hummer H3 in Colorado, United States Aug 2008 - Mar 2010 | |||
| Sep 200998000 miUS $7200 | A Rod in the engine failed. The entire engine was replaced along with a new clutch. | ||
| Hummer H3 in Idaho, United States Sep 2006 - Aug 2009 | |||
| Feb 200721000 mi | roll-over sensor for the airbag (SRS) had to be replaced due to a faulty sensor replaced rear door switch | ||
2006 Hummer H3 4dr SUV
220-horsepower 3.5L I5 4-speed automatic AWD w/low range
| Hummer H3 in Louisiana, United States Apr 2012 - Jun 2012 | |||
| Feb 201286000 miUS $25 | Burned Wire ends on connector to resistor for heater/air conditioning blower motor speed control. It is mounted below and behind glovebox. Very poor setup and should be a recall as every one I know had the same problem on H3's | ||
| Hummer H3 in Florida, United States Aug 2008 - Mar 2010 | |||
| Dec 200810000 mi | Repair exterior trim. Oil change. Headlight problem (still on going). | ||
| Jan 200910000 mi | Traction control problem ...they could not suplicate in the shop...Happened again today, Feb 10th, got code from onstar this time, will make another appointment | ||
| Mar 200910000 mi | Needed sensors replaced. OnStar module died. | ||
| Hummer H3 in Texas, United States Dec 2005 - Jun 2018 | |||
| May 200714400 mi | ECM replaced. | ||
| Dec 201359000 miUS $5000 | Something replaced but not rebuilt | ||
| Hummer H3 in Pennsylvania, United States Nov 2008 - Mar 2016 | |||
| Dec 200859000 miUS $180 | Climate control unit light and rear door switch. Driver's door hinge. | ||
| May 200965000 miUS $190 | Outside mirrors vibrate | ||
| Jan 2010US $35 | Right rear turn single socket replaced | ||
| May 201195000 miUS $395 | Ignition key could not be removed from ignition. Replaced two (2) sensors, did not correct problem. Disconnected brake switch. | ||
| May 2012105400 miUS $550 | Replaced blower motor resistor and plug module. | ||
| Apr 2013122300 miUS $2100 | Rebuilt the transmission. | ||
| Mar 2014133000 miUS $2000 | Both front wheel bearings, right front axle, front brakes, both rotors and brake calipers. | ||
| Hummer H3 in Washington, United States Mar 2009 - Jun 2011 | |||
| Apr 200913000 mi | 4x4 failure & stability system failure warning came on, 4x4 system lights on center console were extinguished. Dealer replaced transfer case encoder motor and performed software update. Surprisingly pleasant dealer service experience. | ||
| Dec 200925000 mi | Engine blown- 80% leakdown in #3 cyl and significant leakdown in the remaining 4. Started with intermittant CEL's and progressed to very rough idle, power loss, and single digit fuel economy. | ||
| Hummer H3 in Ontario, Canada Jun 2009 - Mar 2012 | |||
| Jan 2011C $350 | replace spark plug coil | ||
| Apr 201168200 miC $200 | Steering fluid leak | ||
| Hummer H3 in Massachusetts, United States May 2009 - Dec 2013 | |||
| Jul 200945000 miUS $200 | replaced left rear brakelight AC recharge | ||
| Jul 201052000 miUS $502 | AC/HEATER BLOWER MOTOR , FRONT BRAKES ROTORS AND PADS | ||
| Hummer H3 in New Jersey, United States Feb 2008 - Jun 2018 | |||
| Nov 201146400 miUS $300 | Inner tie rod needed replacement and subsequent realignment. | ||
| Sep 201467000 miUS $70 | EVAP canister failed and needed replacement... | ||
| Jul 201676200 miUS $30 | 02 sensor fail. | ||
| Dec 201786000 miUS $99 | 02 Sensor fail again... This was again related to DMV inspection failure. I have made several attempts to pass so far and waiting for codes to clear b4 police issue violations for overdue inspection dates. | ||
| Hummer H3 in Arkansas, United States Jan 2008 - Mar 2010 | |||
| Feb 200831485 mi | Front drive line cv joint boot came off. Shop replaced entire drive line and steering shaft both in less than 1 hr. Steering shaft replaced due to knocking & front drive line replaced due to CV joint boot failure. Not repaired yet is horrible noise from poor fit of heat/air box under dash vibrating against firewall. | ||
| Hummer H3 in Texas, United States Jan 2007 - Sep 2007 | |||
| Feb 200720000 mi | replaced def window and roof plastic trim | ||
| Aug 200734000 mi | in shop end of august and again first of september only one day, according to shop ticket both times they replaced same part, resistor and plug module | ||
| Sep 200734000 mi | Replaced blower motor resistor and plug module a second time. | ||
| Hummer H3 in Pennsylvania, United States May 2006 - Mar 2010 | |||
| Jan 200847000 mi | A thumping noise in the front suspension. Paint wearing off the radio buttons, installed new radio, was wrong radio because it was not XM compatible. The correct new radio was installed. On my own found thumping noise that the dealer could not replicate was infact a tie rod end that was broken. Had to order parts to repair. Tie rod replaced. | ||
| Hummer H3 in British Columbia, Canada Jan 2007 - Mar 2010 | |||
| Feb 20079300 mi | transfer case failure. Transfer case refused to shift from hi 4 lock back to hi 4 | ||
| May 200713640 miC $43 | squeak from driver side door. Told that emergency brake cable needed rerouting however problem still exists. | ||
| Aug 200717980 mi | Squeak continues from driver side door area driver side exterior mirror loose. Dealer replaced mirror assembly engine shuttered on initial start-up each morning. Dealer reflash of ECM. Shutter now gone | ||
| Dec 200723560 mi | horn honks when vehicle first shut off and driver or passenger door opens. | ||
| Feb 200824180 miC $338 | Horn sounds faintly when driver door is open after shutting off engine. Rear brakes grind when stopping on steep hill. Problem reoccurred after brake rotors were orginally resurfaced due to glazing. TSB on item but dealer unable to replicate? Transfer case stuck in 4 HI lock , will not release to 4 Hi unlock. Same problem a year ago. Transfer case re and re ... Rear brakes grinding, transfer case refuses to shift out of hi-lock, horn sounds when driver door opened | ||
| Sep 200833480 mi | Loud clunk from transmission/rearend when going from coasting to power. Transmission appears to do additional shift just prior to stop. | ||
| Dec 200835340 mi | Check engine light on, due to emission evaporation, vent sensor malfunction. | ||
| Jul 200942160 mi | Right rear passenger door light actuating switch not working. r/r switch again. | ||
| Hummer H3 in Missouri, United States Apr 2006 - Jul 2013 | |||
| Dec 200690 miUS $30000 | Fixed cracked in roof rail. Replaced Traction Control Sensor. | ||
| Feb 200935000 mi | Engine light. Took in. Code: P300. Did leak down test. Confirmed - #3 cylinder head has a 70% leak. Per TSB - replace cylinder head. Parts ordered. Will take 3 weeks to get. 15 other H3's ahead of me for replacement on head. | ||
| Mar 200937000 mi | Install Cylinder Head from February visit. | ||
| Aug 200946000 mi | AC Blower Motor Resistor and wiring harness shorted out and smelled like smoke. It still worked - surprisingly. Most I've heard stop working. We smelled burning from the vents. We smelled mold coming from the vents. We also started getting headaches. Turns out the evaporator holds condensation and turns to mold. A common problem on GM vehicles. Added Evaporator Dryer and sprayed A/C treatment in core to kill the mold. | ||
| Jul 2012103800 miUS $2300 | Replaced transmission | ||
| Hummer H3 in California, United States Jun 2007 - Dec 2013 | |||
| Jan 201264700 miUS $700 | REPLACED SHOCKS, STRUTS, ADDED A FRONT SUSPENSION LIFT, CHECKED BRAKES, PERFORMED ALIGNMENT | ||
| Mar 201268000 miUS $300 | crack in top of radiator assembly. replaced the upper assembly at dealer. | ||
| Hummer H3 in Florida, United States Oct 2007 - Mar 2010 | |||
| Nov 200728000 mi | CD player jammed | ||
| Jan 200939000 mi | Weather stipping repaired/replaced, rattle in black trip above passenger right door. | ||
| Hummer H3 in Texas, United States Jul 2009 - May 2015 | |||
| Sep 200946000 mi | Air condition control knob had a burned out LED. three button control panel replaced at no charge. Under warrenty | ||
| Sep 201293000 mi | Replaced thermostat. | ||
| May 201399000 miUS $40 | Error code P00014 timing error. Replaced crankshsft solenoid. Xsr would not crank. Checked battery and foud it was unable to charge. | ||
| May 2015105000 miUS $35 | A/C stop blowing cold. Replaced blower and recharge A/C | ||
| Hummer H3 in Indiana, United States Apr 2009 - Oct 2011 | |||
| Oct 201179000 miUS $1300 | Just got the recall on brakelines. Have not been in shop yet. | ||
| Hummer H3 in Illinois, United States Mar 2012 - May 2013 | |||
| Jan 2013US $1000 | Power steering belt replaced; worn out | ||
| Hummer H3 in Minnesota, United States Aug 2009 - Feb 2010 | |||
| Jan 201080000 mi | engine wouldn't start--fuel pump not pumping. I removed the circuit breaker and reinstalled---pump started pumping and no trouble since | ||
| Feb 201080000 mi | engine would turn over but not start--fuel pump not operating keyless entry would not lock/unlock doors--drivers side window inoperative | ||
| Hummer H3 in Ohio, United States Jan 2011 - Mar 2013 | |||
| Mar 201164800 mi | Sunroof drain tube was clogged on front passenger side which was causing water to come into the interior wetting the headliner | ||
| Nov 201174000 miUS $250 | Check engine light was on and the thermostat was replaced which fixed the problem. | ||
| Jan 201378300 miUS $483 | Radiator was leaking at the top. Replaced radiator. | ||
| Mar 201395000 miUS $50 | Hard to start in cold. Replaced spark plugs. | ||
| Hummer H3 in Mississippi, United States Jun 2012 - Jan 2014 | |||
| Sep 2012125000 miUS $36 | Loud buzzing/rattling noise coming from under body, thought it was something serious but ended up just being a worn bolt that fell off that was holding up the heat shield under the body. | ||
| Jul 2013139200 miUS $307 | Slighty overheating, thought it was the thermostat so I had it replaced at a local shop, was not thermostat, the thermostat guage went out and had to be readjusted for $100 at dealership. | ||
| Jan 2014US $976 | Started driving about a mile down the road, went dead, would not fully start back up. Would only start up for about 2 seconds, then would do a horrible idle and go dead. Ended up towing it and replacing the fuel pump. | ||
| Hummer H3 in Massachusetts, United States Sep 2013 - Mar 2014 | |||
| Sep 201382000 mi | Needed Heads | ||
| Hummer H3 in New York, United States - May 2007 | |||
| Nov 200610000 mi | The engine light came on and had to be completly reset. The computer had blown a chip. | ||
| Jan 200720000 mi | The 4x4, traction control and stabilitrac computer chip blew. Was replaced. | ||
| May 200725000 mi | The rear universal joint had to be replaced. It was worn. | ||
| Hummer H3 in Nevada, United States Apr 2007 - Mar 2010 | |||
| Apr 20077200 mi | Cylinder head replaced- under warranty. | ||
| Hummer H3 in Michigan, United States Dec 2005 - Mar 2008 | |||
| Oct 200750000 mi | Traction control can be turned on and off on vehicle. Traction control was not able to be turned off. PBM computer module defective. | ||
| Nov 200753000 mi | PBM and electrical activation switch replaced for traction control system | ||
| Hummer H3 in Indiana, United States Nov 2010 - Jan 2011 |
| Hummer H3 in New York, United States Feb 2010 - Jul 2022 | |||
| Apr 201378300 miUS $125 | Leaky oil seal front transaxle. | ||
| Oct 201489200 miUS $2000 | Fuel Tank leaked had to replace it. Upstream Oxygen Sensor bad, had that replaced. Fuel pump rusted, connectors broke and had to replace pump and a fuel hose. | ||
| Sep 201595000 miUS $15 | Radiator Cap Leak | ||
| Apr 2018108000 miUS $30 | Replaced two hood lifts. The hood was not staying up. | ||
| Mar 2021118000 miUS $200 | Steering shaft | ||
| Hummer H3 in New Hampshire, United States Sep 2009 - Jan 2011 | |||
| Nov 201072000 miUS $140 | check engine light on, OBD II code indicated a bad evap solenoid, also got messages about fuel cap being loose. Replaced the evap solenoid, issue fixed. | ||
| Hummer H3 in Hawaii, United States Feb 2010 - Jun 2011 | |||
| Mar 201036000 miUS $67 | WATER LEAKS FROM PASSENGER FRONT WINDSHIELD POST ALSO FROM HEAD LINER DRIVERS SIDE ON-STAR SPEAKER SYSTEM. | ||
| Jun 201039000 mi | Hood ornament coming off-->located center of hood. Ordered adhesive. Damaged hood ornament during repair, ordered a new one. | ||
| Hummer H3 in Oklahoma, United States Mar 2010 - Jun 2011 | |||
| May 201040000 miUS $2 | drain tubes clogged on sunroof Check 4 wheel drive light came on, shop said small leak - repaired, although I never had a leak in 2-1/2 yrs. 1st night home, large leak in garage. Returned for service following day Front differential was leaking, in an ODD place, not from inside seal, but outside seal - replaced, repaired | ||
| Hummer H3 in Massachusetts, United States May 2010 - Jun 2011 | |||
| Sep 201053000 mi | Replace accelerator pedal sensor. Replace TPMS sensor in right rear tire. | ||
| Hummer H3 in Quebec, Canada Nov 2010 - Oct 2014 | |||
| Nov 201389360 miC $200 | Whindshield whiper motor broke (right side), | ||
| Feb 201490400 miC $500 | Front left bearing wheel has to be replaced | ||
| Oct 201493000 miC $200 | Windshield wiper (right side) broke for a second time in a year and third times for the last 2 years | ||
2006 Hummer H3 4dr SUV
| Hummer H3 in California, United States Dec 2017 - Jan 2018 | |||
| Jan 2018162000 miUS $4375 | Replaced engine do to wrong oil filter was blown off and seized engine Power Steering Pump Leaked Replaced Power Steering Pump Rack and Pinion Leaked Replaced Rack and Pinion Broken Motor Mounts Replaced Both Map Sensor | ||
2006 Hummer H3 4-door
5-cylinder automatic 4WD
| Hummer H3 in California, United States Feb 2006 - Apr 2008 | |||
| Aug 200610000 mi | Tie rod replaced after broke while off-roading. | ||
| Dec 200719000 miUS $60 | Grinding noise from front differential, Discovered chipped pinion gear, and frozen in place axle. Replaced complete differential and one half shaft. | ||
| Hummer H3 in North Carolina, United States Jan 2008 - Mar 2010 | |||
| Jun 200979000 miUS $400 | Dreaded cylinder head problem found mainly in the 06 H3. | ||
| Hummer H3 in Montana, United States Sep 2006 - Mar 2010 | |||
| Apr 20077000 mi | Needs new head in cylinder one | ||
| May 20079000 mi | Needs new head in cylinder one. Repair period started in May and finished over a week later in June. | ||
2006 Hummer H3 4-door
4-cylinder automatic AWD
| Hummer H3 in New Jersey, United States Oct 2006 - Jul 2008 | |||
| Nov 20063000 mi | Vehicle stability failure. Please service message came on and I was unable to switch from 4wd drive. These buttons did not work. Mechanic said it was the encoder motor. Replaced broken center console clip. Email 080907. | ||
| Dec 200712000 mi | Air bag light came on. Took in...air bag is working properly on passenger side..just problem with indicator light. Ordered new part...waiting to get call to bring in. | ||
| Jan 200813000 mi | Air bag light for passenger side was not working. Ordered part...then wrong part came in...so finally got appt, free loaner Hummer and then it was fixed. | ||
2006 Hummer H3 2-door
Engine not specified
| Hummer H3 in Connecticut, United States Nov 2007 - Mar 2010 | |||
| Dec 200721000 mi | Bad cylinder head. Ordered replacement. | ||
See TrueDelta's information for all Hummer models.
