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2006 Hummer H3 repairs by problem area

Engine (32%)

Transmission and Drivetrain (12%)

Brakes and Traction Control (3%)

Suspension and Steering (11%)

Electrical and Air Conditioning (23%)

Paint, Rust, Leaks, Rattles, and Trim (15%)

Other (5%)

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Chart based on 136 repairs.

See TSBs and recalls for the 2006 Hummer H3.

2006 Hummer H3 repair cost distribution

$2500+ (3%)

$1000 - $2499 (7%)

$500 - $999 (6%)

$100 - $499 (22%)

< $100 (62%)

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Chart based on 90 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

See repairs for all Hummer H3 model years.

Hummer H3 in Texas, United States Mar 2011 - May 2011
Apr 2011 58000 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 Texas, United States Feb 2010 - Jun 2010
Mar 2010 55000 mi US $125	Replaced HVAC wiring harness and relay.

Hummer H3 in New Jersey, United States May 2008 - Mar 2010
Jun 2008 43000 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 Georgia, United States Sep 2007 - Mar 2010
Oct 2007 55000 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 Louisiana, United States Sep 2007 - Mar 2010
Oct 2007 15000 mi	REPLACED GAS PEDAL

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Hummer H3 in Colorado, United States Aug 2008 - Mar 2010
Sep 2009 98000 mi US $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 2007 21000 mi	roll-over sensor for the airbag (SRS) had to be replaced due to a faulty sensor replaced rear door switch

Hummer H3 in Pennsylvania, United States Apr 2006 - Mar 2010
Feb 2007 13000 mi	Subwoofer making a buzzing sound. Wind noise from clearance light. Body plugs missing.
Mar 2007 15000 mi	Cracked roof rail. Defective stereo subwoofer. Installed missing body plugs (email 050207) Replaced cracked roof rail (email 050207)
Oct 2007 27000 mi	Driver side door gasket (small area) worn due to getting in and out of vehicle.

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Hummer H3 in Oklahoma, United States Mar 2010 - Jun 2011
May 2010 40000 mi US $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 New York, United States Feb 2010 - Jul 2022
Apr 2013 78300 mi US $125	Leaky oil seal front transaxle.
Oct 2014 89200 mi US $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 2015 95000 mi US $15	Radiator Cap Leak
Apr 2018 108000 mi US $30	Replaced two hood lifts. The hood was not staying up.
Mar 2021 118000 mi US $200	Steering shaft

Hummer H3 in Texas, United States Jul 2009 - May 2015
Sep 2009 46000 mi	Air condition control knob had a burned out LED. three button control panel replaced at no charge. Under warrenty
Sep 2012 93000 mi	Replaced thermostat.
May 2013 99000 mi US $40	Error code P00014 timing error. Replaced crankshsft solenoid. Xsr would not crank. Checked battery and foud it was unable to charge.
May 2015 105000 mi US $35	A/C stop blowing cold. Replaced blower and recharge A/C

Hummer H3 in Minnesota, United States Aug 2009 - Feb 2010
Jan 2010 80000 mi	engine wouldn't start--fuel pump not pumping. I removed the circuit breaker and reinstalled---pump started pumping and no trouble since
Feb 2010 80000 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 New Hampshire, United States Sep 2009 - Jan 2011
Nov 2010 72000 mi US $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 Massachusetts, United States May 2010 - Jun 2011
Sep 2010 53000 mi	Replace accelerator pedal sensor. Replace TPMS sensor in right rear tire.

Hummer H3 in Hawaii, United States Feb 2010 - Jun 2011
Mar 2010 36000 mi US $67	WATER LEAKS FROM PASSENGER FRONT WINDSHIELD POST ALSO FROM HEAD LINER DRIVERS SIDE ON-STAR SPEAKER SYSTEM.
Jun 2010 39000 mi	Hood ornament coming off-->located center of hood. Ordered adhesive. Damaged hood ornament during repair, ordered a new one.

Hummer H3 in Indiana, United States Nov 2010 - Jan 2011

Hummer H3 in Nevada, United States Apr 2007 - Mar 2010
Apr 2007 7200 mi	Cylinder head replaced- under warranty.

Hummer H3 in New York, United States - May 2007
Nov 2006 10000 mi	The engine light came on and had to be completly reset. The computer had blown a chip.
Jan 2007 20000 mi	The 4x4, traction control and stabilitrac computer chip blew. Was replaced.
May 2007 25000 mi	The rear universal joint had to be replaced. It was worn.

Hummer H3 in Louisiana, United States Apr 2012 - Jun 2012
Feb 2012 86000 mi US $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 Massachusetts, United States Sep 2013 - Mar 2014
Sep 2013 82000 mi	Needed Heads

Hummer H3 in Mississippi, United States Jun 2012 - Jan 2014
Sep 2012 125000 mi US $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 2013 139200 mi US $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 2014 US $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 Ontario, Canada Jun 2009 - Mar 2012
Jan 2011 C $350	replace spark plug coil
Apr 2011 68200 mi C $200	Steering fluid leak

Hummer H3 in Ohio, United States Jan 2011 - Mar 2013
Mar 2011 64800 mi	Sunroof drain tube was clogged on front passenger side which was causing water to come into the interior wetting the headliner
Nov 2011 74000 mi US $250	Check engine light was on and the thermostat was replaced which fixed the problem.
Jan 2013 78300 mi US $483	Radiator was leaking at the top. Replaced radiator.
Mar 2013 95000 mi US $50	Hard to start in cold. Replaced spark plugs.

Hummer H3 in Illinois, United States Mar 2012 - May 2013
Jan 2013 73700 mi US $1000	Power steering belt replaced; worn out

Hummer H3 in Quebec, Canada Nov 2010 - Oct 2014
Nov 2013 89360 mi C $200	Whindshield whiper motor broke (right side),
Feb 2014 90400 mi C $500	Front left bearing wheel has to be replaced
Oct 2014 93000 mi C $200	Windshield wiper (right side) broke for a second time in a year and third times for the last 2 years

Hummer H3 in Pennsylvania, United States Nov 2008 - Mar 2016
Dec 2008 59000 mi US $180	Climate control unit light and rear door switch. Driver's door hinge.
May 2009 65000 mi US $190	Outside mirrors vibrate
Jan 2010 89100 mi US $35	Right rear turn single socket replaced
May 2011 95000 mi US $395	Ignition key could not be removed from ignition. Replaced two (2) sensors, did not correct problem. Disconnected brake switch.
May 2012 105400 mi US $550	Replaced blower motor resistor and plug module.
Apr 2013 122300 mi US $2100	Rebuilt the transmission.
Mar 2014 133000 mi US $2000	Both front wheel bearings, right front axle, front brakes, both rotors and brake calipers.

Hummer H3 in Florida, United States Oct 2007 - Mar 2010
Nov 2007 28000 mi	CD player jammed
Jan 2009 39000 mi	Weather stipping repaired/replaced, rattle in black trip above passenger right door.

Hummer H3 in California, United States Jun 2007 - Dec 2013
Jan 2012 77200 mi US $700	REPLACED SHOCKS, STRUTS, ADDED A FRONT SUSPENSION LIFT, CHECKED BRAKES, PERFORMED ALIGNMENT
Mar 2012 68000 mi US $300	crack in top of radiator assembly. replaced the upper assembly at dealer.

Hummer H3 in Missouri, United States Apr 2006 - Jul 2013
Dec 2006 90 mi US $30000	Fixed cracked in roof rail. Replaced Traction Control Sensor.
Feb 2009 35000 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 2009 37000 mi	Install Cylinder Head from February visit.
Aug 2009 46000 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 2012 103800 mi US $2300	Replaced transmission

Hummer H3 in British Columbia, Canada Jan 2007 - Mar 2010
Feb 2007 9300 mi	transfer case failure. Transfer case refused to shift from hi 4 lock back to hi 4
May 2007 13640 mi C $43	squeak from driver side door. Told that emergency brake cable needed rerouting however problem still exists.
Aug 2007 17980 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 2007 23560 mi	horn honks when vehicle first shut off and driver or passenger door opens.
Feb 2008 24180 mi C $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 2008 33480 mi	Loud clunk from transmission/rearend when going from coasting to power. Transmission appears to do additional shift just prior to stop.
Dec 2008 35340 mi	Check engine light on, due to emission evaporation, vent sensor malfunction.
Jul 2009 42160 mi	Right rear passenger door light actuating switch not working. r/r switch again.

Hummer H3 in Pennsylvania, United States May 2006 - Mar 2010
Jan 2008 47000 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 Texas, United States Jan 2007 - Sep 2007
Feb 2007 20000 mi	replaced def window and roof plastic trim
Aug 2007 34000 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 2007 34000 mi	Replaced blower motor resistor and plug module a second time.

Hummer H3 in Arkansas, United States Jan 2008 - Mar 2010
Feb 2008 31485 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 Indiana, United States Apr 2009 - Oct 2011
Oct 2011 79000 mi US $1300	Just got the recall on brakelines. Have not been in shop yet.

Hummer H3 in Washington, United States Mar 2009 - Jun 2011
Apr 2009 13000 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 2009 25000 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 Massachusetts, United States May 2009 - Dec 2013
Jul 2009 45000 mi US $200	replaced left rear brakelight AC recharge
Jul 2010 52000 mi US $502	AC/HEATER BLOWER MOTOR , FRONT BRAKES ROTORS AND PADS

Hummer H3 in Florida, United States Aug 2008 - Mar 2010
Dec 2008 10000 mi	Repair exterior trim. Oil change. Headlight problem (still on going).
Jan 2009 10000 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 2009 10000 mi	Needed sensors replaced. OnStar module died.

Hummer H3 in Michigan, United States Dec 2005 - Mar 2008
Oct 2007 50000 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 2007 53000 mi	PBM and electrical activation switch replaced for traction control system

Hummer H3 in Texas, United States Dec 2005 - Jun 2018
May 2007 14400 mi	ECM replaced.
Dec 2013 59000 mi US $5000	Something replaced but not rebuilt

Hummer H3 in New Jersey, United States Feb 2008 - Jun 2018
Nov 2011 46400 mi US $300	Inner tie rod needed replacement and subsequent realignment.
Sep 2014 67000 mi US $70	EVAP canister failed and needed replacement...
Jul 2016 76200 mi US $30	02 sensor fail.
Dec 2017 86000 mi US $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.

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Hummer H3 in California, United States Dec 2017 - Jan 2018
Jan 2018 162000 mi US $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

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Hummer H3 in California, United States Feb 2006 - Apr 2008
Aug 2006 10000 mi	Tie rod replaced after broke while off-roading.
Dec 2007 19000 mi US $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 Montana, United States Sep 2006 - Mar 2010
Apr 2007 7000 mi	Needs new head in cylinder one
May 2007 9000 mi	Needs new head in cylinder one. Repair period started in May and finished over a week later in June.

Hummer H3 in North Carolina, United States Jan 2008 - Mar 2010
Jun 2009 79000 mi US $400	Dreaded cylinder head problem found mainly in the 06 H3.

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Hummer H3 in New Jersey, United States Oct 2006 - Jul 2008
Nov 2006 3000 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 2007 12000 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 2008 13000 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.