Okay. Who HASN'T had a 12V battery issue with their 2023-24 Prime?

Discussion in 'Gen 5 Prius Main Forum' started by REBobBecker, Mar 30, 2024.

  1. Bill Norton

    Bill Norton Senior Member

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    I'm pretty sure other manufacturers figured this out.
    The 12V is monitored, Load Shedding begins at X SOC. When necessary turn on the DC-DC to transfer X amount of Whs to the 12V.
    Monitor the HV pack. Give up the ghost, throw your hands in the air, at 40% SOC, (months later?)
    It's not Rocket Surgery :whistle:

    Again, I changed out my +8 year old Bolt 12V battery because I got tired of waiting for symptoms. Did GM figure it out?
     
  2. Gokhan

    Gokhan Senior Member

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    The Gen 4 and Gen 5 Priuses have no 12-V battery issues when properly maintained, and their 12-V batteries will last 10 years or longer, too. You don’t fix something that is not broken. Besides, Toyota engineers know what they are doing. Every Toyota technical manual, whether it is for Prius or not, instructs that the battery must be fully manually charged if it is drained (due to not having been driven, etc.), which is the only reason for the failure.
     
    Roy Peterson likes this.