Strange message

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by lpf, Apr 13, 2025.

  1. lpf

    lpf Member

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    Hi all,
    When driving with more than 100km/h this message flashes on the screen.
    Do someone knows why?
    Thanks
     

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  2. PriusCamper

    PriusCamper Senior Member

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    You got warning lights? If so you have error codes pointing to the specifics of the problem. In general you either have a shifter that's malfunctioning or the system has recognized a problem somewhere and putting the car in neutral for safety.

    Please provide way more details about this symptom and when/if it goes away, as well as MPG, vehicle miles and history?
     
  3. lpf

    lpf Member

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    No warning lights, I used a mobile to record video of the screen, message is very instantaneous.
    As I said when driving, so it is in D not N, and more than 60 miles speed
     
  4. PriusCamper

    PriusCamper Senior Member

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    So when it goes into neutral, then what? How do you get the car working again? Or has it been stuck in neutral ever since?
     
  5. bisco

    bisco cookie crumbler

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    maybe some corrosion on the ecu connectors?
     
  6. ChapmanF

    ChapmanF Senior Member

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    Or is the car just continuing to drive along nice as you please, and therefore clearly not in neutral at all, but just unaccountably displaying a message about what happens in neutral?
     
  7. MAX2

    MAX2 Senior Member

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    This message will appear if you turn on the "D" mode and open the driver's door even at low speed.

    I don't think you want to leave the car at 100 km/h, but the door locks should be checked.
     
  8. lpf

    lpf Member

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    I will check, thanks
     
  9. lpf

    lpf Member

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    Yes It happens only over 100km/h speeds, running smoothly, but the message flashes on screen. Sometimes with a red triangle...
     
  10. lpf

    lpf Member

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    I'm ready to jump at 100km/h. Then I will check doors when it happens...
     
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  11. Hayslayer

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    Are you seeing any other flashes on the dash? Like the door ajar warning? Maybe the small button sized sensor that detects the door open/shut is acting up. I think I've read previously these sometimes become intermittent and can also cause 12v batteries to drain from interior/door lights staying on
     
  12. lpf

    lpf Member

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    No other messages, driver's door will be checked asap. a while ago it was giving a message that the steering sensor was having a problem but it stopped. I don't know if it's related.
     
  13. pasadena_commut

    pasadena_commut Senior Member

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    We had a Mazda with an intermittent failure of the driver's door sensor. Among other things, if the dome light was in the "door" position that light would flicker on and off while driving. On a Prius it might just give the warnings the OP has noted. I have never tried opening the door at speed - it wouldn't surprise me if the car put up a red triangle in that scenario.

    It wouldn't hurt to check the voltage on the 12V battery when the car has been off overnight. If the battery is on death's door it might be loading the 12V part of the car enough to cause glitches. If the car is in READY and the 12V voltage is checked and it is continuously high, like significantly above 14.1V, that indicates a weak 12V. This can be done with the car in Park in the driveway, for this particular issue the inverter doesn't much care if the car is moving or not.

    Is the appearance of these gremlins correlated with poor road surfaces, pot holes, speed bumps, and the like? That suggests a poor contact - somewhere. It could be in a wire, but it could also be on a circuit board.
     
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  14. lpf

    lpf Member

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    could you please tell me where exctly the sensor is?
     
  15. Hayslayer

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    It's in the door jamb, right around the area where the door fastens shut. Should be a black rubber button, if I remember correctly.
     
  16. lpf

    lpf Member

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    Clipboard01.jpg
    I can't find anything else according to your description
     
  17. ChapmanF

    ChapmanF Senior Member

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    You're looking at the edge of the door itself. Look at the body B pillar area where that edge of the door ends up when you close it.
     
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  18. lpf

    lpf Member

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    Yes I found that, I unscrewed it and checked it. Works fine, no signs of something loose... I will check tomorrow if the door ajar appears with the message. Thanks
    Clipboard01.jpg
     
  19. lpf

    lpf Member

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    Finally, after checking all doors, hatch and hood: the hood when locked has a 2-3mm tolerance and this obviously causes the air to push it up. So it's justified because it only happens when I'm running at 100 km/h and above.
     
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  20. bisco

    bisco cookie crumbler

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    congrats!
     
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