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2023 Prius and Prime TSB for DCM update (remote services related)

Discussion in 'Gen 5 Prius Main Forum' started by Hammersmith, Jul 18, 2024.

  1. Hammersmith

    Hammersmith Senior Member

    Joined:
    Jul 26, 2021
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    Location:
    North Dakota - USA
    Vehicle:
    2023 Prius
    Model:
    Limited AWD-e
    Just an FYI that Toyota just released a new TSB for a bunch of 2023-24 Toyotas for a DCM-related issue. It does not include anything about battery discharge issues. Apparently some cars are having problems using the DCM to communicate after the car has been turned off for a few hours. The new firmware update is supposed to help with this.

    I'll attach the TSB document, but here is the relevant section for Prius owners:
    The only way to determine the current firmware revision of your DCM is with a TechStream reader, so this is a dealer-level fix for everyone but the most well-equipped DIY-er.

    I plan to ask them to check my firmware revision and do the update whenever the rear door recall happens.
     

    Attached Files:

    #1 Hammersmith, Jul 18, 2024
    CD-Ever and tovli like this.
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