How do you get a fiat punto grande rear window demister switch to free from stuck on?

To free a stuck rear window demister switch on a Fiat Punto Grande, first, ensure the vehicle is turned off and the ignition key is removed. Check for any debris or dirt around the switch that may be causing it to stick; gently clean around the switch with a soft cloth. If the switch remains stuck, try gently wiggling or pressing it multiple times to see if it releases. If the issue persists, it may be necessary to consult a mechanic for further assistance.