The brake, ABS, VSP lights on the dashboard of my 2007 Prius will not go out. M

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Alill, Jul 16, 2026 at 5:23 AM.

  1. Alill

    Alill New Member

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    My 2007 Prius would not start even though I installed a new 12v battery. My mechanic installed an inverter pump which resulted in the engine starting. However, the car will only start if the fob is inserted and the brake, ABS, VSP, lights, will not go out. Do I need to replace a sensor?
     
    #1 Alill, Jul 16, 2026 at 5:23 AM
  2. bisco

    bisco cookie crumbler

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    you need a mechanic with a prius aware scanner to read the trouble codes which tell you where the faults may lie.
    did anyone test the new battery to make sure it is fully charged? did you install a quality fresh fob battery?
     
    #2 bisco, Jul 16, 2026 at 9:30 AM
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  3. ChapmanF

    ChapmanF Senior Member

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    The mechanic might have (on purpose or inadvertently) turned off the proximity key function with the KEY button under the dash.

    You can find out what those lights are telling you without having to shop for a scan tool first:

    Blink (a/k/a Flash) Codes – How to. | PriusChat
     
    #3 ChapmanF, Jul 17, 2026 at 9:01 AM
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