What can you do when alarm sound with keyless not working?

If the alarm sounds and the keyless entry isn't working, first try using the physical key to unlock the door and disable the alarm manually. Check the battery of the key fob and replace it if necessary. If the alarm continues to sound, consult the vehicle's manual for troubleshooting steps or consider disconnecting the car battery temporarily to reset the system. If issues persist, seek assistance from a professional or a dealership.