Key fob or lock cylinder

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by PriusDad502, Jul 3, 2026 at 9:19 PM.

  1. PriusDad502

    PriusDad502 New Member

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    Location:
    Kansas
    Vehicle:
    2009 Prius
    Model:
    Touring
    My 09 Prius has a weird issue. It self locks and unlocks when we’re sitting in the car or even near by.

    Sometimes it won’t respond to unlocking or when I press lock it does a consistent beep tone until I unlock it.

    I don’t know if it’s the Fob messing up or the lock cylinder

    everything else works fine starting wise. So does the fob slot.


    I’m clueless and don’t want to buy a new fob