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Hello. Welcome to Just Answer. Please allow me to assist you. Please advise if the key is not turning in the ignition. Thanks
The input on my screen does not indicate you have a hybrid; apologies
The steering column lock is an electrical solenoid that is retracted when the power button is pressed and the system powers up. With a AUX dead battery, your AUX battery is not powering up the gateway ECU to cause the steering column solenoid to energize. What I recommend: Remove the AUX battery from the vehicle and hook it to the jumpers to another vehicle. Let the other vehicle idle for 10 minutes and then reinstall the Aux battery and then try to start. Short of disassembling the column and removing the solenoid, there is no way to bypass this system to get the steering wheel to turn.