What is this - on top of the battery pack? (Yaris Hybrid/Prius C)

Discussion in 'Prius c Main Forum' started by Kingsway, Feb 6, 2026 at 3:29 PM.

  1. Kingsway

    Kingsway Active Member

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    PXL_20260125_224111521.jpg
     
    #1 Kingsway, Feb 6, 2026 at 3:29 PM
  2. ChapmanF

    ChapmanF Senior Member

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    Put me down for a smart-key oscillator, but don't give any prizes out until someone actually looks it up.
     
    #2 ChapmanF, Feb 6, 2026 at 3:48 PM
  3. John in Vermont

    John in Vermont Junior Member

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    It doesn't connect electrically to the batteries. My best guess is that it is a temperature sensor to check if the pack is overheating.
     
    #3 John in Vermont, Feb 6, 2026 at 3:59 PM
    PrimeDan and Leadfoot J. McCoalroller like this.
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