Hummer H2 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Hummer H2
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Hummer H2 Problems
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.
After my H2 is parked awhile (mostly overnight), I will find the rear end has "dropped" approximately 6" as compared to the height of the front end. The rear end will regain its height once the engine is turned on. This happens intermittently.
A Loose or worn gas cap may cause Check Engine Light to illuminate.
Hummer H2 Questions
During summer months there was no problem. At the first freeze this fall the noise started again. At the end of winter the noise seemed to occur when turning. The problem now appears to happen both when turning and accelerating from a stop. Thought about a transmission flush. Anyone have any oth...
Hummer H2 Recalls
The heated washer module under the hood could overheat due to excessive current draw. Under certain conditions, this could result in an under hood fire. This previous recall attempt in 2008 to repair this concern did not have the expected success. Dealers will now permanently disable and remove the heated washer module to correct this concern. This recall is expected to begin on June 20, 2010.
Water may enter the windshield wiper motor module resulting in damage over time. The wipers may work intermittently or not at all. Visibility could be reduced, increasing the risk of a crash. Dealers will inspect the wiper module cover and replace it if necessary to correct this concern. The General Motors recall number is 08243.
The wiring to the washer system heater may overheat due to a failure in the heater module. This could cause other electrical features to malfunction, smoke to develop, and an electrical fire could result. Dealers will install a wire harness with an inline fuse to protect the washer heater module. This recall is expected to begin on September 12, 2008. The General Motors recall number is 08048.
Hummer H2 Reviews
Three years since my last update, and still an AWESOME MACHINE. the MACHINE IS ALMOST NINE YEARS OLD and kicking ass...
Purchased in Jan.2010 to be used as everyday driver and 25' boat hauler. Have not regretted trading in a perfectly good 2007 Acura MDX for it. I have added the nominal performance upgrades (exhaust, intake, chip) which certainly boosted power but no increase over stock mpg. 13mpg at best on highway. The 2008 + up model is the way to go for this brand - many improvements over 2007 and earlie...
heater on driver side seat come on