2007 Hummer H3 Hummer H3 2007

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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 electrical repair cost distribution

$2500+ (0%)

$1000 - $2499 (6%)

$500 - $999 (6%)

$100 - $499 (25%)

< $100 (63%)

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Chart based on 16 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2007 Hummer H3

Engine not specified

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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2007 Hummer H3 4dr SUV

242-horsepower 3.7L I5 5-speed manual AWD w/low range

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. 
70000 mi

US $138
OEM battery died, side walls were bulged out, plates failure 
78000 mi

US $325
Master window control driver side failed, driver window would not work and power door locks would not work 
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. 

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2007 Hummer H3 4dr SUV

242-horsepower 3.7L I5 4-speed automatic AWD w/low range

100000 mi

US $350
HVAC system Heater temperature would not adjust to hothe settings. 
58200 mi

US $1290
Expansion valve replacement 
70000 mi

US $870
Needed new control head. System not cooling 
15000 mi tire pressure monitor light on. 
92500 mi Tire Pressure Monitor damaged. 
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. 
23000 mi power outlet fuse was blown 
25000 mi An occasional flicker noticed in the NAV screen 
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. 
56000 mi Short in horn contacts at steering wheel. Dealer fixed by pulling on horn pad 
74000 mi

US $270
wiring harness for dash ac/defrost/heat fan burned out and had to be replaced. 

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2007 Hummer H3 Electrical Problems

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 2007 Hummer H3 problems occur, check out our car reliability stats.