After changing the battery the key lost it's sync with the car. I've followed the manual procedure of pressing a button and locking / unlocking the car with the key but still nothing. 

 

I don't get a notification about the battery being low in the key any longer so I'm assuming that the battery isn't the issue. Has anyone else had this and if so how did you resolve it? Given current circumstances I'd love to avoid a trip to the dealer even more than usual!

I had an issue whereby the fob wouldn't work, the light on the fob flashed but the car wouldn't lock, no low battery warning on the dash display, fitted a new battery and still zilch, had a word with my mates son who is a Skoda tech and was advised that as the light on the fob was working  the fob needed reprogramming, had to take both keyfobs to the local dealer and it took 30 mins and cost about £51.

 

I think if the light on the fob doesn't work /flash even with a new battery you could be looking at £200plus. 

I have no Idea what caused the issue, It unlocked ok  drove home (10mins) and as I said wouldn't work, the spare fob worked a treat.

Thanks for the reply, the light on the fob isn't flashing either. It's still under warranty so fingers crossed it would be covered as I don't really fancy £200 to get a key remote working