Why isn't my rear window defrosting?

I don't know if I'm doing it right, but I press the rear defroster button and put the fan on max but my rear window doesn't defrost. Or maybe it's supposed to take a long time?

Do I need to press anything else to get the rear window to defrost? It's a new car (Honda Civic 2015) Thanks. Why isn t my rear window defrosting - 1

That's the arrow deflector shield

The front fan isn't needed -- the rear window defroster works via conduction heating -- micro wires in or on the rear window heat it up. The process takes a few minutes

Hi so why not simply visit a honda dealer and ask them how it is supposed to work it might have a fault.

Could be as much as a break in the circuit.

Read duh book, see your dealer