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Hello, thanks for posting
Is the car running ok other than the lights being on? The check engine light will trigger the master warning light to turn on usually because some communication is lost between the engine control computer and the hybrid system so the engine light should be diagnosed first, is the driveable at this time or do you have access to a diagnostic code reader?
Sounds good and yes that is a hybrid battery code, most likely a low voltage cell, hopefully you can get it done under warranty.