575m immobilizer battery life or replacement ?? | FerrariChat
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575m immobilizer battery life or replacement ??

Discussion in '456/550/575' started by Boy Wonder, Apr 15, 2025.

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  1. Boy Wonder

    Boy Wonder Karting

    May 23, 2014
    171
    Boulder, CO
    Full Name:
    Fred Wolf
    #1 Boy Wonder, Apr 15, 2025
    I was miles from home when had I got a bit of a scare as i tried to start my 575

    a couple of tries with no success. Perhaps i didn't make proper contact with the push button on the fob

    it seems to work fine now but the thought of being stranded due to the immobilizer is a big concern

    I don't know the code either, ,and i only have one fob

    does anyone have any experience with this subject ?
     
  2. Qavion

    Qavion F1 World Champ
    Silver Subscribed

    Feb 20, 2015
    13,837
    Sydney
    Full Name:
    Ian Riddell
    #2 Qavion, Apr 15, 2025
    I change mine out once a year.

    If you're worried, then it makes sense to have a new set of fobs made (without the Ferrari tax)

    https://www.ferrarifobs.com/

    Your pin can be retrieved.
     
  3. greg246

    greg246 Two Time F1 World Champ
    Owner Silver Subscribed

    Jun 2, 2004
    26,591
    #3 greg246, Apr 15, 2025
    Clean the battery contacts in the fob, mine stopped working because the contact were dirty
     
  4. vandevanterSH

    vandevanterSH F1 Rookie
    Silver Subscribed

    Jan 27, 2005
    2,951
    AR
    Full Name:
    Stephen Van Devanter
    #4 vandevanterSH, Apr 15, 2025
    Had a similar issue three years ago. The rechargeable battery associated with the siren module gradually goes bad/leaks. With my situation, other than not starting, the system no longer "chirped". Replacing the siren solved the problem.
     
  5. Boy Wonder

    Boy Wonder Karting

    May 23, 2014
    171
    Boulder, CO
    Full Name:
    Fred Wolf
    #5 Boy Wonder, Apr 15, 2025
    1. Can i assume the battery is a standard type commonly available?

    2. also, i assume now that i can pry the case open with a sharp knife , etc without losing the code
     
  6. greyboxer

    greyboxer F1 World Champ

    Dec 8, 2004
    12,624
    South East
    Full Name:
    Jimmie
    #6 greyboxer, Apr 15, 2025
    Yes & no - screw
     
  7. Steen Jensen

    Steen Jensen Formula Junior

    Mar 29, 2009
    289
    #7 Steen Jensen, Apr 15, 2025
    Yes. You can pry it open with no issues.
    Yes. The battery is commonly available.

    I've had my car 11 years. Changed the batteries once. Not recommending that but it's a data point. I carry a spare in the glove compartment.
     
  8. Boy Wonder

    Boy Wonder Karting

    May 23, 2014
    171
    Boulder, CO
    Full Name:
    Fred Wolf
    #8 Boy Wonder, Apr 15, 2025
    AH,, i never noticed the screw,, thanks
     
  9. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,020
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #9 tazandjan, Apr 15, 2025
    See if this helps:
     

    Attached Files:

    Passion_of_V12 likes this.
  10. Boy Wonder

    Boy Wonder Karting

    May 23, 2014
    171
    Boulder, CO
    Full Name:
    Fred Wolf
    #10 Boy Wonder, Apr 15, 2025
    Just to be safe,, if i replace the battery,, will i lose the PIN code

    i only have one fob and don;t have the code either
     
  11. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,020
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #11 tazandjan, Apr 15, 2025
    No, you will not.
     
    Qavion likes this.
  12. Boy Wonder

    Boy Wonder Karting

    May 23, 2014
    171
    Boulder, CO
    Full Name:
    Fred Wolf
    #12 Boy Wonder, Apr 15, 2025
    thank you all
     

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