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ABS, brake, (!) and VSC Lights On

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Stephanie Parsons, Aug 19, 2022.

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  1. Stephanie Parsons

    Stephanie Parsons Junior Member

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    Jul 11, 2021
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    Vehicle:
    2009 Prius
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    Four Touring
    The lights for brake, ABS, (!) and VSC light. I've check my 12V bolt (charged at 12V), I've topped all my fluids and I tried using a paperclip in my OBD2 port (top 5th from the right and bottom 4th from the right) + pushing brake 8 times and I cannot seem to clear the warning lights. Does anyone have any ideas?
     
    #1 Stephanie Parsons, Aug 19, 2022
  2. JC91006

    JC91006 Senior Member

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    II
    You may have a brake accumulator failure (which can happen in older Prius cars). There should be a code for that, gotta read the codes to find out more
     
    #2 JC91006, Aug 20, 2022
  3. dolj

    dolj Senior Member

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    And if you don't have a code reader handy, you can just count the lights blinking on the dash (instead of pressing the brake eight times) when you have the OBD2 port jumpered as above.
     
    #3 dolj, Aug 20, 2022
  4. Tombukt2

    Tombukt2 Senior Member

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    My abs low pressure fail did not keep car from readying I don't believe.lights and fine brakes 24 months. Then all of a sudden out of nowhere I had one front caliper working and nothing else change the accumulator actuator lights off all calipers working brakes bled 300 bucks.
     
    #4 Tombukt2, Aug 20, 2022
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