Headlights whine...like a high pitched sound.
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2004-2007 Cadillac CTS-V General Discussion Discussion, Headlights whine...like a high pitched sound. in Cadillac CTS-V Series Forum - 2004 - 2007; Only notice when I put my ear to them, or the vehicle is off, but headlights on... Anyone?...
  1. #1
    CTScop's Avatar
    CTScop is offline Cadillac Owners Fanatic
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    Headlights whine...like a high pitched sound.

    Only notice when I put my ear to them, or the vehicle is off, but headlights on...

    Anyone?

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  3. #2
    Pakamper's Avatar
    Pakamper is offline Cadillac Owners Member
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    Re: Headlights whine...like a high pitched sound.

    If you have HID headlights it's just them most likely. A lot of HID headlights will make that high pitched ringing sound. Fairly sure mine do the same.

  4. #3
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it.
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    Re: Headlights whine...like a high pitched sound.

    Quick Google search ............ HF ballast whine, HID install. Some street lamps do it, too. Ever hear a neon sign ballast hum?

    https://www.google.com/search?q=hid+...hrome&ie=UTF-8

  5. #4
    Pakamper's Avatar
    Pakamper is offline Cadillac Owners Member
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    Re: Headlights whine...like a high pitched sound.

    Quote Originally Posted by Submariner409 View Post
    Quick Google search ............ HF ballast whine, HID install. Some street lamps do it, too. Ever hear a neon sign ballast hum?

    https://www.google.com/search?q=hid+...hrome&ie=UTF-8
    Exactly this.

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