v Five passenger door and hatch unlock for Three/Two

Discussion in 'Prius v Accessories and Modifications' started by Weirderal, Apr 19, 2026 at 11:48 AM.

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  1. Weirderal

    Weirderal Junior Member

    Joined:
    Dec 11, 2019
    52
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    Location:
    Pennsylvania, United States
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    Hi all.

    I have a 2012 v Two I've been modding. (Side note, literally the only thing separating Two from Three is the presence of the "voice" button on the steering wheel. Swapped steering wheels with an eBay one and I have an aftermarket head unit with an iDataLink interface and you have yourself a Three!)

    A sibling has a 2012 v Five, and one of the nicer quality-of-life features it has is that the passenger door and hatch will also proximity-detect the fob and unlock the door just by trying to open them (and also lock, in the case of the passenger door).

    Has anyone retrofitted those onto a lower trim? Is it plug 'n' play? (And if you happen to have the part numbers handy...)
     
    #1 Weirderal, Apr 19, 2026 at 11:48 AM
  2. rjparker

    rjparker Tu Humilde Sirviente

    Joined:
    Jun 6, 2008
    10,606
    6,653
    7
    Location:
    Texas Hill Country
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    The three also had an upgraded radio with navigation, xm and hd radio along with Entune which was an early "Carplay" type tool with a Toyota server. We still use the navigation and xm.

    Regarding the door and hatch antennas, you might be able to add them but Toyota never installs the necessary vehicle wire harnesses and does not include the capabilities in their ecus. Resulting in very difficult retrofits involving big harness replacements and ecu changeouts, one of which is behind the evaporator requiring a complete dash disassembly. There is an outside chance Toyota could reprogram the necessary ecus but they make it unreasonable for security related features.

    There is a setting that allows all doors and the hatch to unlock when the drivers door unlocks. I use that option.
     
    #2 rjparker, Apr 19, 2026 at 12:07 PM
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