2003 Toyota Prius Hybrid ABS warning light and sound

Discussion in 'Generation 1 Prius Discussion' started by Sue21165, Jul 14, 2020.

  1. Sue21165

    Sue21165 Junior Member

    Joined:
    Dec 4, 2016
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    Location:
    Athens, Alabama
    Vehicle:
    2003 Prius
    Model:
    One
    I have a 2003 Toyota Prius Hybrid. Yesterday as I was driving home, the ABS light came on along with a very high pitched squealing sound. Immediately after that, my brakes basically stopped working. I had to press them to the floor and the car would stop but barely. I was afraid to drive it home, but I had to. Now, it sits in my garage and I don't know what to do.

    An odd side note - the brakes seem to work fine in reverse, but not in drive. I'm not sure why that is either.

    Please help.
     
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    are you going to repair it yourself? if so, you will need tech stream diagnostic software and the service manual.
    if not, have it towed to a dealer.
     
  3. dabard051

    dabard051 Tinkerer-in-Charge

    Joined:
    May 19, 2009
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    Location:
    Rochester, NY USA
    Vehicle:
    2002 Prius
    Model:
    N/A
    Diagnostics, please. Is there brake fluid in the brake fluid reservoir? If not... then from your symptoms, it sounds like you lost hydraulic pressure, either a broken brake line or a blown out brake piston. Less likely, but still possible, is a failed master cylinder in the brake system. For a blown brake cylinder, look for a pool of oily stuff near one of the wheels.

    I support Bisco's point... if you don't have the confidence and/or tools to repair it yourself, have the vehicle towed to either a dealer or a mechanic you trust, and then be prepared to have the job done.
     
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