2020 Kia E-Niro VESS/Reverse Chime defeat solution

Discussion in 'Kia Niro' started by ENirogus, Jun 5, 2021.

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  1. lzeke

    lzeke New Member

    Anyone considered disabling the “reverse” signal to the VESS unit so that it only makes the “spaceship” sound (no beep) when forward and reverse?
     
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  3. ENirogus

    ENirogus Active Member

    If you look at the beginning of the thread, I tracked down the reverse signal wires, which are junctioned above the drivers feet. It would take some design work, but would not be difficult
     
  4. rcnesneg

    rcnesneg Member

  5. Josh Schneider

    Josh Schneider New Member

    Thanks to everyone who's posted these instructions and follow-ups.

    I basically followed these instructions, because I have the same switch. I used very small versions (20-22 gauge) of the screw-type taps listed in the detailed post. Thanks to these instructions (particularly the part about both black and green -- I think / hope -- needing to go to ground, and I did this with another tap, instead of to a chassis grounding point), the switch works as intended. On the downside, I have no LED indicating whether the switch is on or off.

    I guess my 2 questions are 1) how would I know if the LED on the switch is bad (e.g. can I test it with a battery) or 2) would it just be that the red/pink connection might be bad if the switch is OK and I'm getting the intended functionality?

    To be totally clear, I'm using the stock switch harness, black + green to ground on the car's harness (black wire), red to pink (power) on the car's harness, and blue to blue/black on the car's harness. The yellow wire from the switch harness is not connected to anything.

    Appreciate any help.
     
  6. Josh Schneider

    Josh Schneider New Member

    Well, odd follow-up. First, someone broke into our new Niro, smashing the driver's window and pulling out the power button. TikTok Kia Boys, didn't know that they couldn't just hotwire this particular car.

    After cleaning things up and getting the marred power button back in place (usable until we get a new one), I started the car and suddenly found the light was working on my VESS override button. Now it's exactly as described in other's posts. I'm pretty much positive this change is coincidental, and might have to do with one of those posi-taps sinking into a wire after a day or so, but :confused:
     
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  8. ENirogus

    ENirogus Active Member

    Was probably a bad connection shocked into compliance by the vandals.
     
  9. CR EV

    CR EV Active Member

    BTW: My 2019 Launch Edition doesn't have a loud backup. Was in a parking lot the other day and thought there was a big truck backing up near me. Turns out it was a new Niro EV...so now I know what all this is about...
     
  10. matl1

    matl1 New Member

    I actually posted that question tonight to Eric who did the benchtop video of VESS and the canbus scripts he had.
     
  11. ENirogus

    ENirogus Active Member

    Since the reverse signal is close by in the drivers footwell, the simplest way is to devise a circuit that drives its output low[gnd] for say one second when you shift into reverse, then does the same when you shift out again. You could also retain the button for tight parking lots etc
    Just slightly beyond my meager electronics skills
     
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  13. mbbush

    mbbush New Member

    This seems like something that could be done pretty easily with a small microcontroller like ESP32 or ESP8266 running ESPHome, which is a simple way to run arbitrary logic based on things like various inputs/outputs going high/low. It also supports modbus, if that's helpful/necessary.

    My Niro is from 2019, so it doesn't have the obnoxious backup alarm, so I'm probably not going to work on this myself.
     
  14. 3dwardX

    3dwardX New Member

    Has anyone tried to buy and change the light and traction pannel with one that also has the VESS button?
     
  15. rcnesneg

    rcnesneg Member

    Yes they are plug and play with no changes to wiring or anything, even if buttons are in a different place. See post #143. The hard part is finding one.
     
  16. 3dwardX

    3dwardX New Member

    Thank you! I have found that part at a local Kia service, but I wasn't sure it works. As soon as I will buy it, I will put here part no.
    Thanks!
     
    iTest1 likes this.
  17. Cory LaFountaine

    Cory LaFountaine New Member

    Following! Let us know how it works!!


    Sent from my iPhone using Inside EVs
     
  18. rcnesneg

    rcnesneg Member

    I'm surprised they have it - depending on where you are? I've heard of US owners ordering them from wrecked cars via proxy buyers in Europe and having a really hard time finding or getting them, usually costing more than $100 for the switch panel out of a wrecked car.
     
  19. RGOLD

    RGOLD New Member

    Is the 2023 Niro EV has the same loud reverse sound as the 2022 model?
     
  20. 3dwardX

    3dwardX New Member

    I've got a VIN with VESS and I have ordered on local service. I can't wait to grab it... :)
    It's cost is 200$ :(
     
  21. iTest1

    iTest1 New Member

    Could you provide the part number? TIA.
     
  22. iTest1

    iTest1 New Member

    Is this the part#? 93700-G5270
     
  23. 3dwardX

    3dwardX New Member

    Part No is 93700G5FH0WK
    It fit and work just perfect. Just plug and play ;) :)
     

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