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I just realized that you cannot control the rear temperature from the front screen. Does not make it very useful for toddlers in the back who are strapped in.
Am I missing something, or is this a future feature?
I don't have the 2021, but there should be a Sync button, which would sync every position to the driver settings. My Audi A8 has a sync feature, but only the rear passengers can adjust the temperature in that car.