Headlights flicker when brakes depressed
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Electrical Technical Information Discussion, Headlights flicker when brakes depressed in Item Specific Cadillac Discussion; any time I hit the brakes the headlights will flicker. sometimes they dim real low almost like their off and ...
  1. #1
    luisrobles is offline Cadillac Owners Member
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    Question Headlights flicker when brakes depressed

    any time I hit the brakes the headlights will flicker. sometimes they dim real low almost like their off and then they come back. It's only when I first hit the brakes if I stay on the brakes the lights go back to normal. The volt reading on the dash is between 12.3 - 14.3 Does anyone have any idea why it might be doing this? I noticed the other night that the inside lights flicker also. The motor never idles down or misses. 96 deville 73000 miles. Someone has to know something!!!

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    bob2231's Avatar
    bob2231 is offline Cadillac Owners Enthusiast
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    Re: Headlights flicker when brakes depressed

    Quote Originally Posted by luisrobles
    any time I hit the brakes the headlights will flicker. sometimes they dim real low almost like their off and then they come back. It's only when I first hit the brakes if I stay on the brakes the lights go back to normal. The volt reading on the dash is between 12.3 - 14.3 Does anyone have any idea why it might be doing this? I noticed the other night that the inside lights flicker also. The motor never idles down or misses. 96 deville 73000 miles. Someone has to know something!!!
    Sorry, but I can't give you an answer regarding a Cadillac. But I also have a 94 Blazer that had a similar problem. Especially if I was using cruise. It turned out to be a couple wires in under the dash that had bad insulation and were shorting out. It also kept blowing my brake light fuse. You might want to have that looked at.
    Bob

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    luisrobles is offline Cadillac Owners Member
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    Re: Headlights flicker when brakes depressed

    Thanks Bob! I will check it out and keep you guys posted!



    Quote Originally Posted by bob2231
    Sorry, but I can't give you an answer regarding a Cadillac. But I also have a 94 Blazer that had a similar problem. Especially if I was using cruise. It turned out to be a couple wires in under the dash that had bad insulation and were shorting out. It also kept blowing my brake light fuse. You might want to have that looked at.
    Bob

  5. #4
    coffeebreak1 is offline Cadillac Owners Member
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    Re: Headlights flicker when brakes depressed

    could be battery try 1000 cold cranking amps. or better or maybe weak alt.have them both checked at your local part store for free.good luck.
    Quote Originally Posted by luisrobles
    any time I hit the brakes the headlights will flicker. sometimes they dim real low almost like their off and then they come back. It's only when I first hit the brakes if I stay on the brakes the lights go back to normal. The volt reading on the dash is between 12.3 - 14.3 Does anyone have any idea why it might be doing this? I noticed the other night that the inside lights flicker also. The motor never idles down or misses. 96 deville 73000 miles. Someone has to know something!!!

  6. #5
    macfreestyle21 is offline Cadillac Owners Member
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    Re: Headlights flicker when brakes depressed

    I had the same problem on my 02 Escalade everything was flickering headlights dome lights interior lights.I replaced my battery with an optima battery and took care of it.

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