Fault codes P3011, P3014, P3023...

Discussion in 'Generation 1 Prius Discussion' started by War_Destroyer, Apr 13, 2026 at 2:11 PM.

  1. War_Destroyer

    War_Destroyer Junior Member

    Joined:
    Oct 11, 2021
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    Location:
    Los Angeles
    Vehicle:
    2002 Prius
    Model:
    ----USA----
    So my little brother has been daily driving our 2002 Prius, and told me that the car all of a sudden became very sluggish, enough that he had to use the hazard lights at every stop due to lack of acceleration. He said that both the instrument cluster and display began to flicker, that the engine became much louder even at idle, that the AC or fan blower quieted, and that a rear blower, I'm assuming the hybrid battery blower, became louder or more apparent.

    I only have your basic OBD2 scanner and the Torque app, and pulled the following. Dr. Prius used to show basic hybrid battery info, but does not seem to want connect any longer.

    Would these codes be the only thing responsible? The seem to indicate three failing battery blocks in the hybrid battery. The hybrid battery was replaced with a Greentec Auto 12-month warranty remanufactured hybrid battery back in February 2021. It seems that their $2000 option with 3-year warranty is the only option that uses "new cells". If the current hybrid battery was serviced five years ago, and if I'm going to have to remove the battery anyway, should I try to replace the three failing battery blocks, or just cough up another $1400, $1900, or $2050 for one of their replacement hybrid batteries?
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