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Alarm goes off shortly after new headlight bulbs installed.

Discussion in 'Gen 2 Prius Main Forum' started by lex, Sep 4, 2024 at 7:04 PM.

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  1. lex

    lex 2005 Prius, always garaged

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    Interestingly, the car just sounded an alarm - for the first time ever. We don't have an added alarm package that I'm at all aware of (after 19 years). Driver parked in garage, came inside, then suddenly – blaring honking, a siren, and all lights flashing. Again, this is a first. And the only thing that's changed recently is the headlight bulb installation last night. Possibly related. Or what could have started this? Also noticed, for a week now, in case it's related, that the touch display is now, finally, always off when starting the car until a button is pressed. For years, it has been automatically on when starting the car. Any ideas what this means or if related to the alarm? Your thoughts please...
     
    #1 lex, Sep 4, 2024 at 7:04 PM
    Last edited: Sep 4, 2024 at 9:20 PM
  2. Tombukt2

    Tombukt2 Senior Member

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    What display is off It should be I think when you get in the car there's no displays on until you push the button That's correct Tell me this when you open the door or the hatch do you see the little red indicator that the door is open?
     
    #2 Tombukt2, Sep 4, 2024 at 7:27 PM
  3. lex

    lex 2005 Prius, always garaged

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    We're referring to the touch display. For all the past several years, as I recall, the touch display is always coming on, automatically, when starting the car. I posted here a couple years ago on this, seeking a means to stop it, unfortunately to know avail. Suddenly, several days ago, it seems to have reset itself and now works like it should, i.e., it's off when the car is started until a display button is pressed.

    Terminal punctuation is important for clarity.
     
    #3 lex, Sep 4, 2024 at 9:14 PM
    Last edited: Sep 4, 2024 at 9:22 PM
  4. lex

    lex 2005 Prius, always garaged

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    Yes, the red door open indicator light works.
     
    #4 lex, Sep 4, 2024 at 9:17 PM
  5. Tombukt2

    Tombukt2 Senior Member

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    I've never known any generation too having to push any button to have the MFD be on the minute you turn the car on the MFD comes on now if you turn it off the MFD and turn the car back on then you have to push the menu button and the display to bring up the display or it'll be blank I don't even think there is a display button is there and one of those button to say display I don't know what they all say by heart
     
    #5 Tombukt2, Sep 4, 2024 at 9:34 PM
  6. lex

    lex 2005 Prius, always garaged

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    In any event, the display is working normally now, after years of not doing so. But the main question, to return to it, involves this alarm instance described.

    It's hard to parce these messages.
     
    #6 lex, Sep 4, 2024 at 10:07 PM
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