Question about 2002 Jeep Grand Cherokee

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Brake light problem

Without my lights turned on during the day, when i brake, my left brake light does not work. But at night when i run my lights, the left brake light works fine and the right brake light, as well the tail do not work when i brake. Does this have something to do with the brake light switch? I have checked all the bulbs and fuses and they are okay.

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  • 5 more comments 
  • djkantne_11 Oct 24, 2008

    do you know where the brake lights are grounded to, 2004 jeep grand cherokee?

  • ltruschke Nov 10, 2008

    driver side brake works until the head lights or parking lights are turned on

  • mbusacca Dec 04, 2008

    I have same problem. something is lose but can not isloate

  • gary0241 Feb 04, 2009

    I have a 2008 Grand Cherokee and my right rear tail light does not work if I have my head lights or parking lights on. Turn signal and brake do work fine when head lights are not on, but when they are on, nothing works on right rear.

  • chaninpt Feb 11, 2009

    I have the same problem with a 2004 Jeep Grand Cherokee, as long as I don't turn on my headlights the brake light on the right works. With my lights on, I have no brake light.

  • Anonymous Mar 14, 2014

    my tail light woun't work on the right side but brake light and turn lights all work

  • Anonymous Mar 19, 2014

    all my lights work fine during daylight but my left brake light doesnt work while headlights are on



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Back feed causing the brake light to ground off of the head lights caused by bad ground or possible short

Posted on Oct 24, 2008

  • Ecorona6 Sep 14, 2011

    I'm having the same exact problem. Did the poster find a solution?


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  • 3 Answers

I had the same problem on my 02 Sierra, it ended up being the ground wire from drivers side brake light was rotted off and barely making contact at the distribution box mounted behind the rear bumper

Posted on Feb 16, 2013


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