2014 Prius C key programming

Discussion in 'Prius c Technical Discussion' started by Ed480, Sep 8, 2025 at 4:21 PM.

  1. Ed480

    Ed480 Junior Member

    Joined:
    Jul 10, 2023
    15
    1
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    Location:
    Mesa
    Vehicle:
    2010 Prius
    Model:
    Three
    Hello I have a 2014 Prius C I program the lock unlock no problem but when I try to program the immobilizer to so it can start the car I keep getting the error message on tech stream saying “ Key Registration has failed. The communication error occurred between the key and the ECU.” Any ideas why? The key was new and I got it cut.