Try these hacks when your key fob stops working

switch before completing the starting procedure. Certain Ford models use a designated backup slot for the key.

The location and steps vary by model and year. Check your manual under “electronic key,” “key not detected,” or “backup starting.” These methods still require the vehicle’s authorized key.
1. Remember the Car Has a Separate Battery
The key-fob
battery and the vehicle’s battery are different components. Replacing the small battery in your remote will not fix a discharged vehicle battery.

If the vehicle remains unresponsive, roadside assistance can help assess the problem. Any jump-starting procedure must follow the instructions for your particular vehicle,