Anti-Theft Reset

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Smitty22, Feb 5, 2026 at 5:59 PM.

  1. Smitty22

    Smitty22 Junior Member

    Joined:
    Jun 16, 2022
    4
    1
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    Location:
    Richmond, VA
    Vehicle:
    2008 Prius
    Model:
    Base
    My 2008 had a bad battery and it tripped the Anti-Theft sytem when I tried jumping it. I replaced the battery (had it disconnected for at least 30 minutes) and it either stayed in anti-theft mode or it was retripped by a weak key fob battery. I replaced the key fob battery but I still can't get it to reset the anti-theft system. I left the negative battery terminal disconnected for almost 24 hours and it still has the Anti-Theft light in the dash. What other options do I have to reset it that don't involve the TechStream app? Does it need to be disconnected for longer than 24 hours? Is it not the Anti-Theft system? Thanks in advance for any help.
     
    #1 Smitty22, Feb 5, 2026 at 5:59 PM
  2. Tombukt2

    Tombukt2 Senior Member

    Joined:
    Nov 29, 2020
    13,196
    2,385
    0
    Location:
    Durham NC
    Vehicle:
    2009 Prius
    Model:
    Base
    Do you have the key button under your steering wheel or is there just the tire button do you have a black rubber square button on driver door and trunk? If you put the remote in the slot doesn't the red stop ?
     
    #2 Tombukt2, Feb 6, 2026 at 11:06 AM
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