My new 2017 Sonata Sport sounds a gentle beep when the key fob lock button is pressed twice in quick succession. I would prefer that it sound the horn instead of the beep. Is that possible? My 2 2013 Elantras behave this way and I prefer the louder horn to the gentle beep. Thanks in advance!

 

Me too, I just bought one two days ago and the sound is just horrible. I originally thought that was the sound of the horn, but luckily it has a regular horn. Following this thread to see if anyone has an answer.

 

I have the same question. That sound is pathetic. Makes it feel like a toy car! If you find anything on this, please let me know too

 

How-To: Wire your car horn to your alarm 'buzzer' in 5 minutes or less! - Hyundai Forums : Hyundai Forum

Try this