1. Offline

    txl146 Member

    Member Since:
    Jul 4, 2011
    Posts:
    279
    Likes Received:
    16
    Location:
    NY
    Your Vehicle Year:
    2011 Prius
    Model:
    Two
    My car is having a problem of passenger side light (low beam) being always on even after turning the switch or engine off. I have to unplug it to prevent it from draining the battery.

    I am not too familiar with electrical system on the Prius, but suspect bad relay or something related.

    Anyone knows where the relay for the headlight is?
  2. Offline

    Duckles McGee Junior Member

    Member Since:
    Dec 16, 2011
    Posts:
    95
    Likes Received:
    7
    Location:
    Oaks, PA
    Your Vehicle Year:
    2011 Prius
    Model:
    Three
    Are you out of warranty? Why mess with it?
  3. Offline

    Mickduc New Member

    Member Since:
    Dec 3, 2011
    Posts:
    47
    Likes Received:
    4
    Location:
    Oak Park, IL
    Your Vehicle Year:
    2010 Prius
    Model:
    II
    I don't think a relay would cause a single headlight to stay on, maybe both, are you sure the other low beam isn't burned out?
  4. Offline

    txl146 Member

    Member Since:
    Jul 4, 2011
    Posts:
    279
    Likes Received:
    16
    Location:
    NY
    Your Vehicle Year:
    2011 Prius
    Model:
    Two
    Turned out that it was bad integration relay. Dealer replaced it under warranty today.

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