Tesla has introduced Automatic Seat Heaters as part of its Holiday Software Update (2021.44.25): "First row seat heaters can now automatically regulate seat temperature based on the cabin environment and the climate control set temperature. To access seat heating controls, tap the temperature settings to bring up the HVAC panel."

Other Cold Weather Improvements have also been added: "You can now precondition the cabin from the Tesla app when your battery is at a lower state of charge. Simply turn on the climate from your Tesla app and override the previous setting by tapping "Yes" on the confirmation pop-up window."
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