Instead of preparing the vehicle to be washed in an automatic car wash yourself, you can activate car wash mode. It ensures that your vehicle is ready to be washed and that certain capabilities, such as the rain sensor, remain deactivated while you wash the vehicle.
Press the vehicle symbol 
in the bottom bar and go to Settings.
in the bottom bar and go to Settings.Go to .
Activate vehicle wash mode.
Note
Car wash mode will deactivate automatically when the vehicle starts to pick up speed. However, to ensure that all vehicle features are available to you, car wash mode should be deactivated before you reach a public road.