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  1. Error code P1ECE, lithium-ion battery not working properly from the OnStar diagnosis

    Problems, Driver Warnings or DTCs - Gen2 Volt
    Good evening all, I have a 2019 Volt Premier, on Nov 14 2019 I had a check engine light come on, brought the car to the dealer and they wrote on the invoice PiE00 P1ECE, document ID 4998368, last week the same thing happen, but I called OnStar and they tell me that I again have the P1ECE code...