So the brake pedal goes randomly "Hard" when you try to press it? of something else?I bought a 23 X Line premium pkg with 15k miles on 2-1-23. 2x in a month I've had the scary as hell Emergency Hard Brake issues! It has been with the dealer on 3 trips & they held for a week but couldnt duplicate it so nothing happened. Surely I can't be the only owner scared to drive their kia because of this? Trying to find out what others are doing before it happens a third time!
Normally the brake pedal becoming hard to press is the result of a bad brake booster or vacuum line leak.
Hopefully you get it sorted, if you have your phone make a video of it next time it happens