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Prius V Touchscreen issues

Discussion in 'Prius v Audio and Electronics' started by Justin Henderson, Oct 16, 2023.

  1. Justin Henderson

    Justin Henderson Junior Member

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    Vehicle:
    2014 Prius v wagon
    Model:
    Three
    All of the sudden the touch screen on my 2014 stopped working. I can navigate the other screens with the side buttons. The little bit that I've been reading makes me believe that the unit is toast. Is there any other type of fix or way to diagnose the issue? Or do I just need to look for a replacement on ebay?

    Thanks!
     
    #1 Justin Henderson, Oct 16, 2023
  2. rjparker

    rjparker Tu Humilde Sirviente

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    I would power cycle the car first but the mfd units do go bad. Be sure you get the right one plus the extension box if you have maps built in. Most v3’s before 2015 have a 57011 with the bottom extension box.

    IMG_3200.jpeg IMG_3201.jpeg
     
    #2 rjparker, Oct 17, 2023
  3. Justin Henderson

    Justin Henderson Junior Member

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    I had a feeling you’d be the first to respond

    When you say power cycle so you mean just turn the car off and on?
    If so, I tried that several times.


    iPhone ?
     
    #3 Justin Henderson, Oct 17, 2023
  4. rjparker

    rjparker Tu Humilde Sirviente

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    Disconnect the rear negative battery cable at the chassis below hatch (easy plus a chance to check that connection).

    The attached shows removing the mfd starting on page 4. Don't remove the extension box unless you have to move it to another unit.
     

    Attached Files:

    #4 rjparker, Oct 17, 2023
    Last edited: Oct 17, 2023
    Air_Boss likes this.
  5. jzchen

    jzchen Newbie!

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    Is there a reason you’re recommending finding a replacement extension box, vs just plain transferring the current one over?
     
    #5 jzchen, Oct 18, 2023
  6. jzchen

    jzchen Newbie!

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    Is there a reason you’re recommending finding a replacement extension box, vs just plain transferring the current one over?
     
    #5 jzchen, Oct 18, 2023
  7. rjparker

    rjparker Tu Humilde Sirviente

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    It goes bad as well causing issues.
     
    #6 rjparker, Oct 18, 2023
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  8. Justin Henderson

    Justin Henderson Junior Member

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    Vehicle:
    2014 Prius v wagon
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    Three
    My current unit does not have maps. If mine doesn’t use Maps, do I need to worry about the extension box?

    Also, when I got in the car to go to work this morning, the side buttons weren’t working either. I have not had a chance to do a hard reset because I got home from work late last night. But then in the middle of the drive to work this morning the buttons started working again. The touchscreen is still dead. I’m assuming this is all pointing towards failure and I don’t know if I should even waste my time doing a reset.


    iPhone ?
     
    #7 Justin Henderson, Oct 18, 2023
  9. rjparker

    rjparker Tu Humilde Sirviente

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    If it is a 2014 Prius v Trim 3 it should have a 57011 and you have maps accessed by the App button. Without a functioning extension box you lose maps and some Bluetooth functionality.

    If you are buying used just get what you have so the cables all fit. IMG_3212.jpeg

    Do a power cycle before doing anything.

    IMG_3213.jpeg
     
    #8 rjparker, Oct 18, 2023
    Last edited: Oct 18, 2023
    jzchen likes this.
  10. Justin Henderson

    Justin Henderson Junior Member

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    Three
    Ok, so I disconnected the negative terminal. Reconnected. No change in the touch screen. Sounds like I need to replace.


    iPhone ?
     
    #9 Justin Henderson, Oct 19, 2023
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