Service Brake Fluid Switch

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Northstar Engines and System Technical Discussion Discussion, Service Brake Fluid Switch in Cadillac Engine Discussion; Hi I just bought a 96 Sedan DeVille and IGot a reading today saying "Service Brake Fluid Switch" and the ...
  1. #1
    feef706 is offline Cadillac Owners Member
    Join Date
    Nov 2003

    Service Brake Fluid Switch

    Hi I just bought a 96 Sedan DeVille and IGot a reading today saying "Service Brake Fluid Switch" and the brake light came on. Is this something I can do myself or am I going to have to go to the dealer. Thanks alot, James

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  3. #2
    DaveSmed's Avatar
    DaveSmed is offline Cadillac Owners Connoisseur
    Automobile(s): 1968 Cadillac Sedan deVille, 1994 Chevrolet G20
    Join Date
    Aug 2003
    Bucks County, PA
    It's just a float in your master cylinder. Shouldn't be too hard to figure out whats wrong, or to expensive to replace.

  4. #3
    zonie77 is offline Cadillac Owners Connoisseur
    Automobile(s): 94 ETC,97 STS
    Join Date
    Sep 2003
    Check the level of fluid in the master cylinder. If it's low fill it. As your disc brakes wear the caliper pistons move out and more of the fluid stays in the caliper. It doesn't necessarily mean you have a leak but you should check the brakes. They may be close to needing replacement or they could be leaking.

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