If the battery in your 2020 Alfa Romeo Stelvio's key fob stops working, it may need a new battery. Learn how to replace it here.Transcript[music playing]No b If your Stelvio has push button start/stop feature, your vehicle may not start due to weak key fob battery and a 'key not detected' alert message may be displayed in the instrument cluster. Don't worry, you can still start your vehicle, the immobilizer is controlled by a passive transponder. J2OECA.