2018 Kia Optima Brakes Problems

Driver side brake light will only work with headlights off. Turn headlights on and it goes out and doesn't start to work until turning off headlights. Also brakes give out when trying to stop, you have to actually shift to neutral for brakes to work again.

I slowly pulled into the parking lot at work coming around a corner with my break song slowly to see if anything was coming from the other side, pull it around to THE back looking straight ahead to pull into my parking spot as I pulled into my parking spot mind you I have had my foot on the break before. I got there and I got into the park spot. I hit the brakes and the brakes went to the floor multiple times and the car just searched straightforward into the brick wall of the building.

The braking system "catches" at 13mph regularly. It feels like the brakes are being applied or the vehicle is downshifting when it is decelarating to around 13mph without any actual braking being manually applied. So far no safety risk, but if the brakes fail at any point for any reason, there will be potential for great risk. The local Kia dealer was able to reproduce this but had no explanation, no recommendation, and no further advice or assistance was offered. At this point, the Kia dealership is the only entity to inspect this issue. There are no warning lights or indicators of failure or problems, but this issue has been ongoing since the vehicle was purchased.

Front brake calipers seize and burning smell and smoke coming for front wheels. Have replaced the rotors, calipers and brake pads(twice) and it does not seem to fix the problem.

LOUD RATTELING WHEN CRANKING, CONTINUOUS RATTELING WHEN ACCELERATING UNDER DRIVERSIDE FLOOR BOARD MADE A CLUNK SOUND WHEN APPLYING BRAKES AND NOW ITS LIKE A SLIDING SOUND BEFORE IT CATCHES BRAKE

THIS HAS HAPPED NOW 5 TIMES!! WHEN APPLYING MY BRAKES, THE PEDAL GETS FIRM WHICH LITTLE TO NO REDUCTION IN SPEED! THEN PEDAL GOES ALMOST ALL THE WAY TO THE FLOOR AND WHEELS LOCK UP, COMING TO AN ABRUPT STOP! EACH TIME THIS HAPPENED WAS COMPLETELY RANDOM AND WITHOUT ANY TYPE OF WARNING! EACH TIME I WAS APPROACHING A STOPS SIGN OR COMING UP TO AN OFF RAMP! BROUGHT MY CAR INTO THE KIA DEALERSHIP AND THEY CHECKED IT OUT FOR HOURS AND THEY DID NOT COME UP WITH ANYTHING BUT TOLD ME THEY WOULD REPORT IT! SO STILL HAVING PROBLEMS AND THEY CAN'T FIND ANYTHING WRONG WITH IT! I DON'T FEEL I CAN SAFELY DRIVE MY VEHICLE ANYMORE ESPECIALLY WITH MY KIDS!!! THIS NEEDS TO BE ADDRESSED BEFORE SOMEONE GETS HURT!!! BUT OF COURSE KIA WON'T DO THE EXTRA WORK TO HELP SOLVE THE PROBLEM!!

WHEN REVERSING THE BRAKES TAKE 5 TO 10 SECONDS TO RELEASE, ALSO THE BRAKE LIGHT STAYS ON THE ENTIRE TIME OF THIS ISSUE HAPPENING.