Speed limiter

Discussion in 'Gen 4 Prius Main Forum' started by coyote2, Aug 5, 2025 at 9:15 PM.

  1. coyote2

    coyote2 Member

    Joined:
    Jun 29, 2004
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    Vehicle:
    2005 Prius
    Model:
    Two
    Is the speed of my 2021 Prius factory-limited? (My 2005 Prius hit the speed-limiter wall at 106 mph, I first discovered on a vast straight stretch in Alaska. The vehicle had good stability at that speed, and the motor had a good bit more ability to go faster.)
     
    #1 coyote2, Aug 5, 2025 at 9:15 PM
  2. Kramah313

    Kramah313 Active Member

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    Oct 3, 2015
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    Location:
    Dallas, TX
    Vehicle:
    2012 Prius
    Model:
    Four
    Looks like the 2021 is limited at 112. I will say I looked that up, I don’t have a 2021 myself.
     
    #2 Kramah313, Aug 5, 2025 at 9:52 PM
    coyote2 likes this.
  3. ChapmanF

    ChapmanF Senior Member

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    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    A vehicle speed limit might be derived from the RPM limits on MG1 and MG2.
     
    #3 ChapmanF, Aug 5, 2025 at 10:26 PM
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