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there is a plug in the fuse box under the back seat about 3 inches wide if you unplug it and plug it back in and make sure that the tall steel fuses are pluged in tight the lights stop flickering it will come back the dealership says nothing is wrong I figured it out by trying diffent connections this is the only thing that helps it may last a couple of months before you have to do it again

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Q: Why do Trailblazer dash lights flicker?
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