hello. I'm Having a i30 and would like to know what means ask if that is done when you unlock the car from the key lights up and lights. I saw it in a video about it and ask.
Hi and welcome to the forum petran.
If I understand your question correctly, the flash from the lights is a visual confirmation that the key fob has worked.
One flash means the car has locked, confirming for you as you leave it parked somewhere.
And two flashes confirms it has unlocked.
The key fob is much more powerful than for a lot of other cars. Mine has worked up to 100 meters away in direct line of sight.
Also, be aware that, if you unlock the car and don't open a door within 30 seconds, it will lock again. This guards against you accidentally pushing the button in your pocket or bag and inadvertantly leaving the car unlocked.