2006 Hummer H3 Hummer H3 2006

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2006 Hummer H3 repairs by problem area

Engine (29%)

Transmission and Drivetrain (11%)

Brakes and Traction Control (8%)

Suspension and Steering (9%)

Electrical and Air Conditioning (24%)

Paint, Rust, Leaks, Rattles, and Trim (14%)

Other (5%)

Chart based on 135 repairs.
See TSBs and recalls for the 2006 Hummer H3.

2006 Hummer H3 repair cost distribution

$2500+ (12%)

$1000 - $2499 (18%)

$500 - $999 (15%)

$100 - $499 (47%)

< $100 (9%)

Chart based on 34 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Non-members can see only ten 2006 Hummer H3 repair histories. Log in or join us to see them all.

2006 Hummer H3

Engine not specified

Hummer H3 in Georgia, United States
Sep 2007 - Mar 2010
Oct 2007

55000 mi

US $75
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 2010

55000 mi

US $125
Replaced HVAC wiring harness and relay. 
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 Louisiana, United States
Sep 2007 - Mar 2010
Oct 2007

15000 mi
REPLACED GAS PEDAL 
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. 

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2006 Hummer H3 4dr SUV

220-horsepower 3.5L I5 5-speed manual AWD w/low range

Hummer H3 in British Columbia, Canada
Aug 2006 - Mar 2010
Oct 2006

1364 mi
Onstar stopped working. Onstar buttons on the rear view mirror not working. 
Apr 2007

4340 mi
Intermittent "Traction ctrl failure" and check "ABS" messages on dash. Error comes and goes but doesn't seem to affect operation. Onstar stops working again but I know enough to remove fuse for 5 minutes to reset it. 
Jul 2007

6820 mi
"Traction ctrl failure" evolves to a the transfer case not shifting our of 4hi. Comes and goes and is very inconvienent as I need 4lo to launch my boat. Radio buttons are peeling and clear coat on wheel rims delaminating in spots. Appointment at dealer 
Aug 2007

9299 mi
Dealer fixed everything. Even replaced the radio and agreed to refinish all 5 wheels at no cost. Dealer provided free car for the 4 days the H3 was in the shop. Everything works perfectly. 
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 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. 
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 

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2006 Hummer H3 4dr SUV

220-horsepower 3.5L I5 4-speed automatic AWD w/low range

Hummer H3 in New Jersey, United States
Feb 2008 - Dec 2016
Nov 2011

47000 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

76300 mi

US $30
02 sensor fail. 
Hummer H3 in Ohio, United States
Jan 2011 - Mar 2013
Mar 2011

65000 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

91700 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 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 Oklahoma, United States
Mar 2010 - Jun 2011
May 2010

40000 mi
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 
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 California, United States
Jun 2007 - Dec 2013
Jan 2012

64500 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 Ontario, Canada
Jun 2009 - Mar 2012
Jan 2011

66320 mi

C $350
replace spark plug coil 
Apr 2011

68200 mi

C $200
Steering fluid leak 
Hummer H3 in Massachusetts, United States
Sep 2013 - Mar 2014
Sep 2013

82000 mi
Needed Heads 
Hummer H3 in New York, United States
- Nov 2006
Nov 2006

10073 mi
Replaced transfer case actuator. No charge 
Hummer H3 in Michigan, United States
- May 2006
May 2006

12000 mi
Transfer case module replaced under warranty. 
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 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 Nevada, United States
Apr 2007 - Mar 2010
Apr 2007

7200 mi
Cylinder head replaced- under warranty. 
Hummer H3 in New York, United States
Feb 2010 - Dec 2016
Jan 2010

52876 mi

US $134
Replaced drivers side window switch control cluster 
Apr 2013

78700 mi

US $125
Leaky oil seal front transaxle. 
Oct 2014

89300 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 
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

139700 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

152000 mi

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 Quebec, Canada
Nov 2010 - Oct 2014
Nov 2013

89460 mi

C $200
Whindshield whiper motor broke (right side), 
Feb 2014

90700 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 Illinois, United States
Mar 2012 - May 2013
Jan 2013

74000 mi

US $1000
Power steering belt replaced; worn out 
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 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 Arkansas, United States
Jan 2008 - Mar 2010
Feb 2008

31485 mi
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
Dec 2005 - Mar 2014
May 2007

14300 mi
ECM replaced. 
Dec 2013

59000 mi

US $5000
Something replaced but not rebuilt 
Hummer H3 in Florida, United States
Oct 2007 - Mar 2010
Nov 2007

28000 mi
CD player jammed 
Mar 2008

30000 mi
Reoccurring rear brake grinding noise which reappears within weeks of the previous inspection/repair... 
Jan 2009

39000 mi
Weather stipping repaired/replaced, rattle in black trip above passenger right door. 
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
Jan 2006 - Sep 2007
Aug 2006

2500 mi

US $5500
replced front differential after taking it off road 
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 British Columbia, Canada
Jan 2006 - Mar 2010
Jul 2006

496 mi
dead battery, replaced serpentine belt, on-star disabled 
Aug 2006

744 mi
fix marker lights, total brake failure requiring pressure bleeding of brake system 
Oct 2006

6076 mi
squeak from driver door, lube and redirect brake cable 
Nov 2006

7440 mi
Rear brake grinding, machine rear rotors, lube caliper pins 
Jan 2007

8835 mi
door harness on driverrs door has come apart, side of popped out requiring removal of door panel and repair to connector vehicle unable to shift out of 4hi, transfer case required re & re, 17 days out of service 
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
rear brakes grinding when stopping on steep grade. Second time for problem. 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 rear brakes continue to grind on steep down grades when coming to a stop on a steep slope. Told dealer could not replicate even though noise made leaving dealer parking lot 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
Rear brakes grinding, transfer case refuses to shift out of hi-lock, horn sounds when driver door opened 
Apr 2008

26660 mi

C $54
Rear brakes grinding. TSB issued by GM 07/22/07 dealer refused to acknowledge TSB even after correcting same issue previously. Call required to GM Canada to have dealer reevaluate and correct issue. 
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 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 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 Florida, United States
Aug 2008 - Mar 2010
Dec 2008

10000 mi
Repair exterior trim. Oil change.  Repair brakes. 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 Massachusetts, United States
May 2009 - Dec 2013
Jul 2009

45000 mi

US $200
replaced left rear brakelight AC recharge 
Jul 2010

52700 mi

US $502
AC/HEATER BLOWER MOTOR , FRONT BRAKES ROTORS AND PADS 
Oct 2013

70300 mi

US $1000
Sears automotive did entire repairs brakes , rotors , pads , needed replacement... tune-up was done plugs replaced , wheels were rotated and alignment was done , approximate cost was 1000.00 $ I hate car problems and I hate car repairs 
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 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

76000 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

103300 mi

US $550
Replaced blower motor resistor and plug module. 
Apr 2013

122700 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 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 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

104700 mi

US $2300
Replaced transmission 
Hummer H3 in New Jersey, United States
Jun 2007 - Mar 2009
Mar 2009

54000 mi

US $200
Front brake job. 

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2006 Hummer H3 4-door

5-cylinder automatic 4WD

Hummer 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 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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2006 Hummer H3 4-door

4-cylinder automatic AWD

Hummer 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. 

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2006 Hummer H3 2-door

Engine not specified

Hummer H3 in Connecticut, United States
Nov 2007 - Mar 2010
Dec 2007

21000 mi
Bad cylinder head. Ordered replacement. 

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2006 Hummer H3 Repair Histories

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2006 Hummer H3 problems occur, check out our car reliability stats.