Can your key fob lose its programming?

Hello, the fob cannot lose programming - because the fob is not what is programmed, the vehicle's transceiver and processor is programmed to interface with the identification of the fob. Testing must be performed to determine why your fob is not longer doing what it is expected to do. It could be that there's a setting issue, it could be a problem with the vehicle, or perhaps you need to replace the battery in your fob? Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops Check also with your dealership if needed, in case an "in warranty" repair will apply.