Overhead Interior Lights Rocker Switch failure

Discussion in 'Prime Care, Maintenance and Troubleshooting' started by IABoy987, Sep 12, 2025 at 10:28 PM.

  1. IABoy987

    IABoy987 Member

    Joined:
    Nov 25, 2011
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    Location:
    Iowa
    Vehicle:
    2018 Prius Prime
    Model:
    Plug-in Base
    On the overhead panel with the two personal interior lights, has a three position rocker switch that either keeps lights off or on, and center position controls interior lights when a door is opened/closed. We very seldom have needed to move switch from center position and was surprised when lights did not illuminate.

    Can get lights to go on by jiggling the rocker to the "on" side, but then go off with vibration. So conclude the switch has gone bad. Checked the owners manual and does not appear to be any other control switch that would keep lights off.

    Has anyone experienced this failure? Can I "easily" replace the switch or is this something that best left to ($$$) Toyota dealer?
     
    #1 IABoy987, Sep 12, 2025 at 10:28 PM
  2. BiomedO1

    BiomedO1 Senior Member

    Joined:
    Mar 27, 2021
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    Location:
    SacTown, Ca
    Vehicle:
    2021 Prius Prime
    Model:
    LE
    Are you sure it's a bad switch; not a bad bulb connection? If the lamp stops working due to vibration - I'd lean more towards connection issue.
    I've replaced mine with LED bulbs (T10) so I'm pretty familiar with the internals there. It's pretty easy to access; several youtube videos to get in there.

    Hope this helps.....
     
    #2 BiomedO1, Sep 13, 2025 at 9:48 AM
    IABoy987 likes this.
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