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12v battery dead

  1. Generation 2 Volt (2016-2020)
    Leave the car unplugged for 2 weeks and found the 12V battery dead. The high voltage battery still has 90% charge. Charged the 12V battery up with an external charger. The engine light is on when turn on the car. Using an ODBII tool and the codes are: B2AAA - body P1F64 - Powertrain U3018 -...
  2. Li-Ion Battery, Charging, Mgmt System - Chevy Volt
    I tell my wife in the morning...why don't you take my 2011 Volt to work today. I'll take your 2013 Volt today and test the bluetooth problems we were having with the iPhone 5's. Ok, deal. Bluetooth...mixed thing is fixed, the other not. But that's a different post. Around 3pm...