TECHNICAL SERVICE BULLETIN: SERVICE ACTION: DATC LOGIC IMPROVEMENT FOR CELSIUS TO FAHRENHEIT CONVERSION (SA513) - This bulletin provides the procedure to update the software logic of the Dual Auto Temperature Controller (DATC) on some 2022MY EV6 (CV) vehicles produced from November 17, 2021 through September 16, 2022, in order to prevent the temperature units from changing to Celsius from Fahrenheit when using remote functions.