Can’t reset maintenance required light after replacing head unit?

Discussion in 'Gen 3 Prius Audio and Electronics' started by fgaston, Aug 22, 2025 at 4:30 PM.

  1. fgaston

    fgaston Junior Member

    Joined:
    Nov 13, 2023
    4
    0
    0
    Location:
    Old Lyme, CT
    Vehicle:
    2023 Prius Prime
    Model:
    XLE
    Replaced the head unit of my 2014 prius with an aftermarket stereo. That causes me to lose the ability to reset maintenance required light after an oil change.

    I tried looking up and resetting codes with an obd2 scanner but no luck. Any suggestions?
     
  2. AzusaPrius

    AzusaPrius Senior Member

    Joined:
    May 27, 2020
    2,148
    909
    0
    Location:
    California
    Vehicle:
    2010 Prius
    Model:
    IV
    Buy the harness that allows you to use the steering wheel controls.