Question about 2005 Hummer H2

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Hummer headlight won't turn off

I have an 05 H2 and the headlights won't turn off. As soon as you turn on the ignition the headlights come on and the driving lights won't even come on. I have checked all relays and fuses and they are all good. I'm sure there has to be some sort of fail safe that keeps the headlights on. They will only turn off with the ignition the switch has no effect even if the vehicle is off. Thanks, TT

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  • treylee77 Feb 07, 2009

    I cleaned the sensor off and it is still not working correctly. The switch acts as if it isn't even there. The switch does not work at all but I had it tested and the switch is good. I was told what ever feeds the swich with power is not sending a power but going into a fail safe and making the headlights come on and stay on. Thanks,,TT

  • Anonymous Apr 06, 2009

    i drowned my h3 in some water last night.. now the headlights wont turn off... the water was up to the rockers, thats all.. this h3 is junk when it comes to 4wheelin.. gettin rid of it when I can..

  • Anonymous Mar 31, 2014




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I know gms have a light sentinal in the dash. when it says it's dark out, it will automaticaly turn your lights on. dose your hummer have one? if so, try cleaning it off.

Posted on Feb 07, 2009


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