2005 Hummer H2 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2005 Hummer H2

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2005 Hummer H2 Problems

Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail

One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.

Check Engine Light Due to Gas Cap Issue

A Loose or worn gas cap may cause Check Engine Light to illuminate.

Contamination of extended life coolant

Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.

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2005 Hummer H2 Questions

side marker lights are dim and sometimes do not come on. (1 answer)

changed oil 6 quarts no oil on dipstick (2 answers)

just bought a 2005 h2 hummer only 40,000 miles checked oil no oil on dipstick drained oil got 6 quarts out replaced oil 6 quarts still no oil on dipstick Help

With the rear wheels off the ground and on jack stands, and in park the rear whe (1 answer)

With the rear wheels off the ground and on jack stands, and in park the rear wheels will rotate. wouldn't the transmission prevent this from
occurring. 2005 h2

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2005 Hummer H2 Recalls

Rear Seat Belt for Smaller Passengers May Not Fit Correctly

The second row center seat belt routing may make it difficult to position correctly on smaller passengers. If the seat belt rides up to fit around the abdomen, the risk of internal injury is increased in a crash. Dealers will cut the guide loop, remove a portion of the loop, and the remaining sides should be folded over and secured with a retainer. The recall began July 21, 2005. The GM recall number is 05037.

Hydraulic Brake Booster May Fail

On vehicles equipped with the Bosch hydraulic brake booster, the boost pressure accumulator may crack and break away from the hydro-boost assembly during normal operation. If this were to happen while the hood is open, fragments from the accumulator could injure people standing in the immediate area. The loss of fluid while driving would cause increased steering and braking effort and a crash could occur without warning. Dealers will test the hydro-boost assembly for function of the two-function valve. If the hydro-boost assembly fails the test, it will be replaced free of charge. The recall began March 23, 2005. The GM recall number is 05006.

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2005 Hummer H2 Reviews

Three years since my last update, and still an AWESOME MACHINE. the MACHINE IS ALMOST NINE YEARS OLD and kicking ass...
heater on driver side seat come on
05 H2 SUT....GREAT DRIVING MACHINE....

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