no ignition key beep headlights nolonger automatically turn off

Discussion in 'Gen 2 Prius Main Forum' started by Meter guy, Aug 11, 2025 at 9:52 PM.

  1. Meter guy

    Meter guy Junior Member

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    2009 Prius
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    I did some searching before i posted but not seeing any specific answers to my question. one post about the headlights was a very long one about diagnosing the hybrid system.

    my 09 prius with 287K daily driver, original traction battery.
    my key fob no longer works wirelessly so i just plug it into the dash. (probabally been that way for 5 years)

    a week or 2 ago i noticed that it was no longer beeping at me to remove the fob when i turn off the power. i noticed tonight that it also doesn't automatically shut off the headlights like it has for years.

    the fob receptacle lights still come on, but they also aren't on at times too, but i never really paid close attention to them. also, the immobilizer light on the dash is off when the fob is inserted in the receptacle, that appears normal.

    car turns on and off fine, otherwise.

    any thoughts?
     
  2. Tombukt2

    Tombukt2 Senior Member

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    There's about a 80 pages of troubleshooting in manual a guy posted online copy yesterday in similar thread.
     
  3. bisco

    bisco cookie crumbler

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    get a free 12v load test at most auto parts stores