Good day,when you push the panic button does the horn sound

 

Hadn't thought to try that, no the horn does not sound when I push the panic button Good thing I have not needed to panic

 

Not sure about Hyundai cars but my last two cars had the option to program the key FOB so there was NO horn sound when the doors locked, just a flash of the park lights. The horn sound is very annoying. Just read through your owner's manual and you should find a section on programing your key FOB. I can also set it up so a single push unlocks all the doors. Most cars unlock just the driver's door as a safety measure so have to press the unlock button twice to unlock all four door, two doors if it's a coupe.
However, if the horn isn't working when you push the panic buton, maybe the horn circuit was disconnected by the tech when the car was service. Look for a wire, near your horn(s) that isn't connected. It could be that simple. Good luck.

 

Go back to the dealer and ask them to check it out. depending on the service done, the alarm may have been going off and driving the tech nuts - maybe he disconnected something??

 

Stupid question maybe.. but does it honk from the steering wheel?

 

^^ Why stupid? First question I had, does the horn work at all?

 

Check all your doors properly including hatch.

1. In my santa fe it would not honk when you press 2 times on remote when any door of car is not properly closed.
This is rule in my case.

2. Sometimes randomly it decides not to honk when pressed on remote 2 times. I would unlock it and lock it again and it will work or just open one door close it and try and it will work. Strange but it happens and I decided not to over think about it.

 

Horn fuse is in the under-hood fuse and relay box so if it's intact, the relay is probably shot. I'd take it back to the dealer and tell them it was working when you dropped it off but not since you got the car back.