NHTSA Complaint #11631339 — 2024 KIA EV6

While driving in the rain, the vehicle failed to decelerate and brake efficiently. There were two event this morning (12/18/24). 1. Approaching a red light with Regen braking set to lvl 3 the car failed to slow after removing my foot from the accelerator. Quickly i began applying braking force with the brake pedal, but there was no change in the vehicles speed. Finally I firmly forced the brake pedal to the floor and the car came to a quick stop with ABS kicking in. Thinking that some of the sensors may have been affected by the wet road conditions, i disabled regen/ self braking. 2. With regen set to zero I began approaching slower traffic in a bend on the highway. When i saw brake lights ahead i began to brake and the pedal did not respond. It wasn't firm, nor soft just "regular". Knowing that i had distance to avoid collision, i let off the brake then applied again. This time-still nothing. I'm running out of space now so I quickly jab the brakes, activating abs, and avoiding the rear end of the pickup in front of me. I have yet to take the car to the dealership as they don't open until 9am (currently 7:44 am). I fear that they will not be able to replicate problem unless it is still raining when i arrive.