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red battery light

  1. Red battery light. Service battery charging system.

    First Generation Ampera and Volt
    Anybody had this light and message? I'm guessing it's the 12v battery it's referring to not the traction battery. Is this one of those random faults caused by 12v battery failing? It's a 2013 and still on the original 12v battery as far as I know. Torque lite reports 12.0v-12.2v.