Question about 2003 Chevrolet Silverado 2500HD

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2003 duramax 2500hd brake lights stay on when lights are on

When I turn on the lights the brake lights stay on and the left blinker does not blink. When the lights are off it all works fine but, Today I seen the front parking lights come on when I hit the brakes with the lights off. Help this is really making me mad

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  • weirdmk3 Dec 19, 2008

    the trailer wiring harness is wired in. It does not unplug

  • Anonymous Mar 23, 2014

    when you hit the brakes and let off the brake lights stay on sometimes until you them again, why?

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You may have faulty wiring for your trailer lights. Look under the back of the truck where the wiring harness leads to the trailer wiring harness. Usualy it is a 3 way plug in the harness. Try unpluging the harness from the trailer wiring and just plug the other 2 wires into eachother
Hope this works for you!

Posted on Dec 17, 2008

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Posted on Jan 02, 2017

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