2007 Chevrolet Silverado Classic SS New Cars Logo
Anonymous Posted on Dec 12, 2008

Brake lights do not work, all other lights work.

My brake lights on my 96 Blazer 4X are not working, but all the rest of the lights work. Fuses seem to be okay. When tested, there is power going to and out of the fuses, but no brake lights. I have a 2007 Chevy Silverado. My rear brake lights don't work, but my top (third ) brake light does. I have checked all the fuses, and replaced the bulbs.

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  • Anonymous May 11, 2010

    I think on that model the turn signals and brakes are the same bulb. So check your turn signals. Maybe a turn signal switch problem. 

  • Anonymous Mar 18, 2014

    brakes working but lights brake lights and the brake light strip at top of boat wont light up checked all fuses

  • Anonymous Mar 28, 2014

    The top brake light works. I cannot find a fuse for them. is there one?

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  • Posted on Dec 12, 2008
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Have you checked the brake light switch thats activated by the brake pedal arm?if not follow the brake pedal arm up under the dash and you will find a switch that goes on and off when you push the arm in and out.Make sure you have power in and out and the switch is correctly adjusted.

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  • Posted on Dec 12, 2008
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It is a common chevy problem for the circuit board that holds to bulb to fail, are your running lights and signals still working back there as well? If not then you need to replace the boards.

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Did you check or replace the brake light bulbs?
It is more common to have burnt bulbs than a bad brake light switch or blown fuse.
Do you have orange signal lights and red brake lights at the rear?
Then the signal light switch will not affect the brake lights.....but....
If they are all red and you use the same bulbs for brake and signal....the brake light wiring goes through the signal light switch and could be affected there.
First....check for power getting to the brake light switch......and leaving it with a test light.......then go to the rear....pull a light assembly and check for power getting to the bulbs.no power? follow the wiring back to the switch looking for a bad connection.
The fuses and relays under the hood are usually in a black plastic box labeled fuses and or relays.
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Brake lights do not work, all other lights work.

My fiancee' followed Ron's instruction, on where to find the brake light switch, and was finally able to locate it, get it out, and replace it with a new one. I now have brake lights. He had been looking all morning for the switch but could not find it, and he is an ace mechanic, so thanks to Ron for his expert advice. You guys are the greatest!!

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Turn signal cuts out when brake is applied

To cover all of the bases, replace your bulbs, fuses and flasher.
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