Crazy auto braking

Discussion in 'Gen 5 Prius Main Forum' started by Templeton, Jul 2, 2026 at 10:31 AM.

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  1. Gokhan

    Gokhan Senior Member

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    How does the car detect the door when the sensors are disabled?
     
    #21 Gokhan, Jul 2, 2026 at 4:31 PM
  2. Templeton

    Templeton Active Member

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    I can clarify this by (1) the parking brake indication coming up on the dash, (2) the car stops dead even though it is in D or R, (3) I hear the parking brake motor running when the brake kicks in, and (4) the car will not move again unless I manually press the parking brake switch to release the parking brake.
     
    #22 Templeton, Jul 2, 2026 at 4:32 PM
  3. Templeton

    Templeton Active Member

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    I have no idea.

    I don't know which sensors are disabled, but the car computer knows the door is open (indication is visible on dash) and manually disabling PKSB does nothing regarding this issue: i.e., the parking brake still kicks in when moving the car a couple of feet with a door ajar, even when PKSB is off.
     
    #23 Templeton, Jul 2, 2026 at 4:33 PM
    Last edited: Jul 2, 2026 at 4:43 PM
  4. Gokhan

    Gokhan Senior Member

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    The backup camera is not fed into the computer.

    Is this what you did?

    Enabling/Disabling the
    Parking Support Brake

    The Parking Support Brake
    function can be enabled/disabled
    through a customize setting.
    (P.540)
    When the PKSB (Parking Support
    Brake) is disabled, the driving
    assist information indicator
    (P.84) illuminates, and a message
    is displayed on the multiinformation
    display.
    If the PKSB (Parking Support
    Brake) is switched to OFF (disabled),
    the system will not be reenabled
    until ON (enabled) is
    selected again from the customize
    setting (P.540).
    (It remains off even if the power
    switch is turned to ON again
    after the power switch has been
    turned off.)
     
    #24 Gokhan, Jul 2, 2026 at 4:44 PM
  5. Templeton

    Templeton Active Member

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    Thanks, but not sure what the rear camera has to do with this, as this is not about obstacles front or rear. It is about trying to move the car forward or backward a few feet without the driver's door 100% full closed.

    To answer your question, yes, I disabled PKSB.

    Then I immediately (and also after shutting of the car and restarting it) tried to move the car forward a foot or two. The car moved a few inches and then the parking brake kicked in to stop the car dead.

    This is the automatic action that I am trying to disable. But I have no idea which system controls it.
     
    #25 Templeton, Jul 2, 2026 at 4:51 PM
  6. PriusCamper

    PriusCamper Senior Member

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    You can apologize all you want, but the loved ones of those squirrels are never going to forgive you, nor will I...
     
    #26 PriusCamper, Jul 2, 2026 at 5:47 PM
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