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LE/SE hatch proximity / Smart key unlock research

Discussion in 'Gen 5 Prius Accessories and Modifications' started by Zyrian, May 7, 2024.

  1. Zyrian

    Zyrian Junior Member

    Joined:
    Feb 26, 2024
    40
    27
    0
    Location:
    ATL
    Vehicle:
    2023 Prius Prime
    Model:
    SE
    I have a Prime SE and the only feature of the higher trims I miss is the proximity open on the hatch - have to click the remote to unlock the car before being able to open the trunk.

    So I dug up and 6yo thread with a PDF guide for a Gen 3 on how to add more unlock buttons and found some compatible part numbers off XLE/XSE, so it's been done before, just not on Gen 5:

    84840-47040 - hatch button assembly
    89997-0E050 - rear Smart key antenna

    Prime SE button assembly harness has 3 wires coming out of it already (while the button assembly itself only has 2 pins, so hope is that unlock button will work out of the box).

    Antenna is harder - if there is no pigtail around the bumper, I'll have to figure out where to wire it - have zero idea how at this point.

    Once new button assembly comes in, I'll test it on its own hoping that placing keyfob near driver's door will be enough for the proof of concept.

    But if anyone has access to wiring diagrams or any sort of shop manuals, I'll be the guinea pig.

    Anyone with me?
     
    pramodhrachuri, klsprius and bisco like this.
  2. FreeJack

    FreeJack New Member

    Joined:
    May 7, 2024
    2
    0
    0
    Location:
    Canada
    Vehicle:
    2024 Prius Prime
    Model:
    SE
    +1
    I'm with you on this one. Not having this function on my SE really bugs me. I had it on my previous car and it helps a lot in the day to day.

    I can't help you much but will surely follow your progress.