touch screen not working

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by mielikki_eo, Jun 4, 2004.

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  1. mielikki_eo

    mielikki_eo New Member

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    A week or two ago my touch screen stopped working.

    When I first noticed it, it was responding to touches but at the wrong spot. Seems like it pressed a few inches to the right of where I pressed. For example, when I tried to press the "Energy" button on the consumption screen, it actually pressed "Reset". D'oh!

    A few minutes later it wouldn't even do that. Now about the only response I can get is if I press really far on the left edge, it seems to do the button that is there. (That is, I can manage to press the "Energy" button if I squeeze my finger up against the left edge of the screen.)

    I hoped it would reset itself when I turned off the car and turned it back on again, but no luck.

    I have an appt for Monday to have it looked at (and get my 5000m service done).
     
    #1 mielikki_eo, Jun 4, 2004
  2. mielikki_eo

    mielikki_eo New Member

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    hmm... I'd better update my sig... I'd don't have my LMPG on me, though... but I've been getting around 50mpg city now that the weather has warmed up!
     
    #2 mielikki_eo, Jun 4, 2004
  3. efusco

    efusco Moderator Emeritus
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    Check your owner's manual, there is a way to recalibrate the touch screen that shouldn't require you to go to the dealer, and it sounds like that's all you need. But I don't know what would have caused it to drift so badly. Check under "Menu" on the sides of the touch screen, I think you'll be able to navigate from there.
     
    #3 efusco, Jun 4, 2004
  4. mielikki_eo

    mielikki_eo New Member

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    I spent a half-hour looking through the owner's manual. Either the information on recalibrating is not in there, or I'm really stupid. (Hope it's not the latter!)

    I did notice that there appears to be a small hairline crack towards the left of the display. I don't know how that could have happened -- nothing has ever hit the display.

    I guess there's a good chance that has something to do with it. :(
     
    #4 mielikki_eo, Jun 5, 2004
  5. aarons12

    aarons12 New Member

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    i drove my car home from WV 10 days ago and all was fine. then it sat in the back yard since then because i still have to sell my buick.

    today i go to use it, and the touch screen is not working. the display is there and changes fine, but can't push any buttons... grrrr
     
    #5 aarons12, Jun 29, 2004
  6. aarons12

    aarons12 New Member

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    AAAAARRRRRRRRRRRGGGGGGGGGGHHHHHHH!!!!!!!!!

    i tried turning my car on and off a bunch of times. then touched around the screen and found that indeed there were a couple of hot spots but they did not match up to the on-screen buttons.

    but then, i looked more carefully, and MY SCREEN HAS CRACKED TOO! and my car has just been sitting in the yard for the past week.

    could this have happened from the heat of a closed car? it's not even in the sun all day long! guess i'm gonna find out how good dealer service is around here...
     
    #6 aarons12, Jun 29, 2004
  7. HTMLSpinnr

    HTMLSpinnr Super Moderator
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    On the plus side, the replacement screen will offer you Energy/Consumption toggling from the steering wheel. Kinda wish mine would crack so I'd get the new feature :-P
     
    #7 HTMLSpinnr, Jun 29, 2004
  8. aarons12

    aarons12 New Member

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    i HAD energy/consumption toggling from the steering wheel. i found that out while playing on the drive home. guess since mine is new. actually i still have it, since that doesn't require a touch button to work, just the steering wheel control.

    but thanks for trying to make me feel better...
     
    #8 aarons12, Jun 29, 2004
  9. miniracer

    miniracer New Member

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    But, that's only on a car with NAV, correct?? I have a BI (6), no NAV, that I just picked up, built 6/04, and it has no such feature or button on the wheel.
     
    #9 miniracer, Jun 30, 2004
  10. tag

    tag Senior Member

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    #10 tag, Jun 30, 2004
  11. brosnan

    brosnan Member

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    dead touchscreen unit available?

    If anyone gets a warranty replacement on the touchscreen, see if
    you can keep the dead one. I'd like to tear it apart to see if there
    are wires inside we could tap into to fake out the "I agree"
    soft key on the nav option.
    Thanks.
     
    #11 brosnan, Jun 30, 2004
  12. DaveG

    DaveG Member

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    Just a guess, but I imagine that under warranty replacement, Toyota would want all the faulty parts back, especially on new models like the 04s so they can send them to the QC engineers to examine and see if it was a manufacturing error, or a design defect that needs to be corrected.
     
    #12 DaveG, Jun 30, 2004
  13. miniracer

    miniracer New Member

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    With a BI (6), non NAV, I have no toggles or anything on upper right side of steering wheel.
     
    #13 miniracer, Jun 30, 2004
  14. jfschultz

    jfschultz Active Member

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    Re: dead touchscreen unit available?

    There probably are not "button wires" that can be faked. What gets sent to the ECU is some analog voltage value that the ECU then converts to coordinates where the screen was touched. This is then mapped by software to the button being displayed.

    Since it appears that the display still works, all that is busted is touch sensitive surface of the display.

    My son had a similar problem with his Palm with big ugly cracks. That was fixed by just replacing the top glass, which is the touch sensitive surface.
     
    #14 jfschultz, Jun 30, 2004
  15. tag

    tag Senior Member

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    So, on the upper right side of the steering wheel on your #6 there's, well, nothing? Just a continuation of the silver plastic?
     
    #15 tag, Jun 30, 2004
  16. aarons12

    aarons12 New Member

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    gee, i hate to bring this discussion back to the title of the thread :D ...

    i took my car to my local dealer today, with the exact same problem described above... touch screen buttons don't work except all the way to the left side... and a hairline crack in the plastic.

    the service rep said that 'he will have to ask' if this is covered under the warranty because there is 'physical damage'...

    grrrrrrr
     
    #16 aarons12, Jun 30, 2004
  17. miniracer

    miniracer New Member

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    That's right - nothin' but a continuation of the plastic. As a matter of fact, my owner's manual contains no information or photos, diagrams, etc., of the NAV system. Looks like Toyota has put out 2 different owner's manuals; one for NAV cars, and one for cars without NAV.
     
    #17 miniracer, Jun 30, 2004
  18. tag

    tag Senior Member

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    They have a separate manual for NAV functionality. Same size, shape, color, etc., as the owner's manual but much thinner...........still contains the same level of obtuseness apparently required by the federal authorities for owner's manuals, though. :)
     
    #18 tag, Jun 30, 2004
  19. DaveG

    DaveG Member

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    If the issue is the same, you might want to get ahold of the other owner to have Toyota correlate both repairs. Perhaps there's some issue they need to address.

    Do you know what the interior temp was getting to? Maybe it's worthwhile leaving one of the windows down a hair if it's safe to do so to avoid the super-high temps caused in a totally sealed car?

    Dave
     
    #19 DaveG, Jul 1, 2004
  20. aarons12

    aarons12 New Member

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    i don't know what the temp actually was, but it has not been especially hot here...
     
    #20 aarons12, Jul 1, 2004
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