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2007 Hummer H3 repairs by problem area

Engine (36%)

Transmission and Drivetrain (21%)

Brakes and Traction Control (5%)

Suspension and Steering (12%)

Electrical and Air Conditioning (19%)

Paint, Rust, Leaks, Rattles, and Trim (6%)

Other (1%)

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Chart based on 84 repairs.

See TSBs and recalls for the 2007 Hummer H3.

2007 Hummer H3 repair cost distribution

$2500+ (9%)

$1000 - $2499 (7%)

$500 - $999 (16%)

$100 - $499 (28%)

< $100 (39%)

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Chart based on 74 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 Florida, United States Nov 2010 - Jun 2011
Dec 2010 47000 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.

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Hummer H3 in Virginia, United States Jun 2014 - Nov 2014
Sep 2014 50000 mi US $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 Indiana, United States Apr 2012 - Apr 2012
Apr 2012 75000 mi US $5000	transmission went out, limped in

Hummer H3 in California, United States Apr 2014 - Nov 2019
Mar 2015 118000 mi US $55	Water Pump leaking (bearing)
May 2015 121000 mi US $1384	Leaking out of the output transfer case seal, and clutch slip.
Feb 2016 134300 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 2017 160000 mi US $75	Replace left FRT axle.

Hummer H3 in Massachusetts, United States Mar 2010 - Jun 2018
Dec 2011 66000 mi US $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 2012 70000 mi US $138	OEM battery died, side walls were bulged out, plates failure
Dec 2012 78000 mi US $325	Master window control driver side failed, driver window would not work and power door locks would not work
Jan 2013 78000 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 2013 78500 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 2013 82000 mi US $300	Servo valve in sensor showed engine light, design change made a $100 part cost $200 with $100 installation.
Nov 2013 87000 mi US $650	Driver side front wheel bearing with TPM retails over $400 for part $650 with oil change and tire rotation (5)
Jan 2014 80000 mi US $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 2014 90000 mi US $600	Passenger side front wheel bearing with 7 year warranty
Sep 2014 95000 mi US $807	Radiator needed to be replaced as well as a u joint.
Dec 2016 115000 mi US $170	Leaking boot driver side

Hummer H3 in California, United States Feb 2015 - Dec 2015
Mar 2015 67000 mi US $2600	Cylinder number 5 misfiring, valves stuck. Entire block needed rebuilt. This is a common problem with this engine and GM is ignoring.

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Hummer H3 in Montana, United States Mar 2017 - Apr 2017
Apr 2017 117000 mi US $500	Rebuild front differential replace ring gear and all bearings and seals

Hummer H3 in North Carolina, United States Jun 2013 - Jul 2013
Jul 2013 58000 mi	Master cylinder failure - have to REPLACE Engine

Hummer H3 in Hawaii, United States Mar 2013 - Dec 2015
Jun 2013 62000 mi US $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 2014 85000 mi US $250	At 90000 miles Radiator's plastic top tank seams started leaking coolant and loss of cooling system pressure.
Jul 2015 92700 mi US $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 2015 100000 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 Kansas, United States Dec 2012 - Dec 2015
Jan 2013 90000 mi	Cylinder Head is bad. Needs to be completly replaced. Tire Pressure Monitor damaged.

Hummer H3 in South Africa Aug 2013 - Jan 2022
Jul 2014 88020 mi	Transfer case chain.
Dec 2015 109740 mi R 150	Transmission oil pipe chafing against the exhaust manifold, causing oil leak. Pipe replaced.
Feb 2016 112840 mi R 180	Thermostat replacement.
Mar 2016 115320 mi	Torque Convertor circuit open and Input Turbine Speed Sensors (P0716 and P0717 Powertrain codes).
Jun 2016 119660 mi	Front Differential gears failure. New Front Differential installed.

Hummer H3 in Florida, United States Mar 2014 - Jun 2022
Jul 2015 58200 mi US $1290	Water pump replacement Expansion valve replacement
Mar 2016 67000 mi US $1200	Radiator split apart and had to be replaced
Oct 2017 70000 mi US $870	Needed new control head. System not cooling

Hummer H3 in New Jersey, United States - Oct 2007
Oct 2007 15000 mi	tire pressure monitor light on.

Hummer H3 in British Columbia, Canada Sep 2012 - Dec 2016
Apr 2013 80600 mi C $200	iner cv boot ripped open replaced cv axle with new.

Hummer H3 in Montana, United States Sep 2010 - Jun 2011
Oct 2010 57300 mi	dic displays (doors) even though they are all shut

Hummer H3 in British Columbia, Canada Jun 2014 - Mar 2016
Jun 2014 99200 mi C $300	Kept shutting down while driving, traction control failing, service stabilizers
Oct 2014 105540 mi	Traction control failed
Nov 2014 107840 mi C $850	broken water pump

Hummer H3 in Illinois, United States Aug 2012 - Oct 2013
Oct 2013 68000 mi US $50	Engine Light On; vehicle running sluggish

Hummer H3 in Texas, United States Apr 2009 - Jul 2013
Dec 2009 23000 mi	They replaced the lower steering shaft. It was a known problem on the 07's per a TSB.
Jul 2011 39500 mi	Check engine light on. Small evap leak found. Smoke test. Dealer replaced vent solenoid and gas cap. Retested, no leaks found.
Dec 2011 45000 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 2011 61680 mi C $350	U joints on drive shaft had to be replaced

Hummer H3 in Indiana, United States Aug 2009 - Jun 2011
Jun 2010 59000 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 2009 25000 mi	An occasional flicker noticed in the NAV screen

Hummer H3 in Kansas, United States Dec 2008 - Jun 2011
Nov 2009 23000 mi	power outlet fuse was blown

Hummer H3 in Michigan, United States Sep 2012 - Jul 2013
Jan 2013 US $600	Catastrophic water pump failure
Apr 2013 75300 mi US $200	All 4 U-Joints went bad
Jun 2013 77000 mi US $100	Lower radiator hose and thermostat

Hummer H3 in New York, United States Jul 2010 - Sep 2013
Jul 2013 85700 mi	Ruptured Flex Brake Hose to front right brake disc. Fluid leak/lost pressure and brakes
Aug 2013 88000 mi US $415	Right/Front Axle Seal Leaking where axle enters differential

Hummer H3 in Texas, United States Jan 2009 - Aug 2011
Apr 2009 47000 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 2009 55000 mi	My torque converter went out. Grinding sound while in gear and stopped.
Aug 2009 56000 mi	Short in horn contacts at steering wheel. Dealer fixed by pulling on horn pad
Jun 2011 82000 mi US $600	Overheating replaced radiator.

Hummer H3 in Oregon, United States Jul 2012 - Jun 2016
Sep 2013 74000 mi US $270	wiring harness for dash ac/defrost/heat fan burned out and had to be replaced.
Feb 2015 86000 mi US $3899	catalytic converter bracket broken. Bolts broken off in head. replaced head and catalytic converter because bracket and converter are one piece.
May 2016 97600 mi US $9000	replaced power steering pump replaced radiator replaced engine, $6000

Hummer H3 in Florida, United States Jun 2012 - Dec 2015
Feb 2013 48200 mi	Catalytic converter was replaced.
Jul 2013 60000 mi US $240	Can position sencor. Front axle replaced. Boot ripped.
Aug 2013 62000 mi US $285	Sun roof drains plugged.
Feb 2015 98000 mi US $400	Ball joint
Oct 2015 109000 mi US $417	Water pump replacing. No power on acceleration. Sluggish. Still dealing with it.
Nov 2015 109000 mi US $777	Loud rattling. Replaced motor mounts and transmission mount.
Dec 2015 109000 mi	Starting to have transmission issues.

Hummer H3 in Pennsylvania, United States Apr 2011 - Apr 2012
Nov 2011 69500 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 2011 36300 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 2013 48000 mi US $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 2014 52000 mi US $786	Cracked wheel bearing,passenger side.
Jul 2015 60000 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 2016 68000 mi US $1100	Drivers side wheel bearing,belt,rear brakes,alignment inspection,rear shocks.
Jan 2017 52500 mi US $300	Pass lock system,replaced ignition tumbler.
Aug 2017 76000 mi US $1200	Shocks,front, breaks front, tires all four.

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Hummer H3 in New York, United States Jan 2010 - Jun 2011
Feb 2010 58000 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.

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