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Yes, dealer updated DCM, and replaced rear tires now my navigation does not work and tire software is unable to recognize tires. Also my engine cutoff is not saving it's position in the computer like it had before this update.

You spoke to an incompetent customer service agent

Supras do have a DCM confirmed this with Supra Connect customer service

So If I wanted to I could probably file a case against checkered flag Toyota of Virginia Beach.

Do not let the dealership update your DCM module it will brake other software throughout your car.