Question about 2004 Hummer H2

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Just want to reset the check engine light. disconnect battery...turn lights on and off.....remove a fuse....please help. thanks jennifer

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You would have to use a OBDII scanner to clear the light. There is a connector under the driverside of the dash to connect the scanner to. If a problem exists, the light would just come back on. For the change oil light all you have to do is turn the key on, but don't start engine. Press the gas pedal all the way to the floor 3 times within 5 seconds and that resets that light. Some Hummers have menu controls on the steering wheel to reset the oil light. But as far as a Check Engine Light, you may need to have your vehicle checked out. Local part stores like Autozone could check what trouble codes are in the system to see why the light is on. Don't know if they can clear them for you. Misfires, bad oxygen sensors, lean/rich fuel mixture are just a few examples of what can turn that light on.

Posted on Dec 29, 2010


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Good luck and have a nice evening. Peter

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