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Thread: 2013 Mazda 3 Headlights Blink when Brakes applied

  1. #1
    Registered Member tomfooter's Avatar

    2013 Mazda 3

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    Aug 2014
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    Dublin, VA
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    1

    Question 2013 Mazda 3 Headlights Blink when Brakes applied

    Has anyone experienced this problem I am having with my 2013 Mazda 3? If your Headlights are on and you apply the Brake, the lights will start blinking like there is a voltage drop. The don't go off, but dim just a bit and brighten, dim and brighten about twice every second while the brake pedal is down. I have even noticed my interior light will do it too, if it happens to be on. I have no idea what the brake light or park lights are doing at this time, because I haven't had anyone follow me yet. The headlights have never gone out, just start blinking. I just bought this car (used) about a month ago and it seems like it has done it since I have owned it. Anyone ever hear of this and what may be causing it?

  2. #2
    Registered Member

    2013 Mazda3 i Sport

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    Jun 2013
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    Roseville, CA
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    16
    Quote Originally Posted by tomfooter View Post
    Has anyone experienced this problem I am having with my 2013 Mazda 3? If your Headlights are on and you apply the Brake, the lights will start blinking like there is a voltage drop. The don't go off, but dim just a bit and brighten, dim and brighten about twice every second while the brake pedal is down. I have even noticed my interior light will do it too, if it happens to be on. I have no idea what the brake light or park lights are doing at this time, because I haven't had anyone follow me yet. The headlights have never gone out, just start blinking. I just bought this car (used) about a month ago and it seems like it has done it since I have owned it. Anyone ever hear of this and what may be causing it?
    According to Consumer Reports, there's a TSB on this... here's the listing they have:

    Service bulletins

    2010-13 models might need an updated rear stabilizer due to a squeak, knock, or rattle (8/13).

    2012-13 models with Halogen lights need a software update if they flicker when applying the brakes (19/13), and may also need an updated #4 engine mount for a squeak when starting from a stop and/or shifting (13/13).

    Sounds like there is a known issue, I'd call the dealership tell them the issue and that you understand there's a software update for it.

  3. #3
    Registered Member

    Mazda 3iT 2012

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    Nov 2011
    Location
    Elida, Ohio, USA
    Posts
    69
    My dealer was aware of the TSB and reprogrammed the PCM. About $45 out the door, and most importantly, works.
    - Rick

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