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Windshield wipers problem

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Jungenas, Jun 21, 2022.

  1. Jungenas

    Jungenas Junior Member

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    Hello everyone, since i bought the car my windshield wipers dont go down all the way if the windshield is dry. they stop few inches from the bottom, if i move the wipers lever off and then on again on mist setting they go down to their possition and stay there, if i use mist again they go up again and stop few inches from bottom. There are no problems if the windshield is wet. I hope i explained it clear enough, english is not my first language. Thanks for any thoughts in advance.
     
    #1 Jungenas, Jun 21, 2022
  2. JC91006

    JC91006 Senior Member

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    What happens if you mist it again, would it go down to the right position the 2nd time?
     
    #2 JC91006, Jun 21, 2022
  3. Jungenas

    Jungenas Junior Member

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    i uploaded a video to make it clear. If i go mist again they go up and then down and stay few inches from the bottom, then mist again they go down to their original position.
     
    #3 Jungenas, Jun 21, 2022
  4. JC91006

    JC91006 Senior Member

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    Sometimes that happens to my 2010, but I just do it again and it'll go back down to normal. I don't know how to fix it, and probably wouldn't want to spend money to fix it either.
     
    #4 JC91006, Jun 21, 2022
  5. Jungenas

    Jungenas Junior Member

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    Same, if it needs new wiper motor assembly then i will leave it as it is, but i am hoping maybe someone knows easy fix for this, because its annoying if i leave wipers on auto position, and they dont go all the way down.
     
    #5 Jungenas, Jun 21, 2022
  6. Tombukt2

    Tombukt2 Senior Member

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    I would personally think it's in the switch I don't think the motor doesn't anything but actually have the two speeds all the delaying and returning and whatnot is in the controller on the stock I believe I think other cars of mine are the same way too
     
    #6 Tombukt2, Jun 22, 2022
  7. Tombukt2

    Tombukt2 Senior Member

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    As a matter of fact just recently I changed the wiper motor on a 2010 2011 for a part that came off of a 2015 and then I took the 2010 motor apart to look inside of it and it was just worn out and it was a pretty dumb setup in other words just to two speeds and not much else in there
     
    #7 Tombukt2, Jun 22, 2022
  8. ChapmanF

    ChapmanF Senior Member

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    I think that would be unusual. The delaying can be done in the stalk switch (or in some separate box in some cars), but the detection of the return position pretty much always involves a switch that's built into the motor/gearbox ... because it has to know when the wipers are at the return position, and the stalk switch doesn't.

    wip.png

    As the diagram shows, the motor assembly includes the low and high speed windings, two capacitors, a circuit breaker, and the little cam-operated return-position-detect switch over at the right.

    If that switch gets worn out and moves away from the upper contact early (or the contact is bad there), the wipers will stop early.
     
    #8 ChapmanF, Jun 22, 2022
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