Automatic Emergency Braking problems of the 2019 Hyundai Santa Fe

Was at a complete stop at a light with a car in front me, I had plenty of space when I started accelerating and then suddenly the automatic system braked hard. Like there was literally no reason for what the car did. It took a few seconds to get out of that issue but then was able to proceed as normal. There have been at least 2 other times where a side sensor was triggered while on the freeway violently jerking me to the left, nearly putting into another lane.

Issue with idle on-off. After idling at light etc. Car will stall. First time would not re-start , I was towed. Mechanic replaced turbo feature but problem persists and I am not using the on -off feature in an attempt to not have this happen, yet it does.

Car turns off at lights /stop signs. Automatic break system activates. Have to wait at least five minutes to be able to restart car z same happens after driving and parking. Turbo and battery were replaced. I make sure not to use the automatic on/off feature which make issue worse. This is my fourth attempt to contact you. I cannot trade car in bc of mileage and still owing $. I love me vehicle and just want issue recognized and taken care off.

For the duration of the vehicle's ownership, it has underperformed and operated unpredictably under hard braking, specifically with relation to the vehicle's abs system. The conditions have caused meto never drive the car in snow, as this weather condition in particular exacerbates the braking issues and makes the car unsafe. Issues with the braking/abs include: the abs activating at slow speeds in all conditions, even on dry roads the abs activating and preventing the vehicle from being emergency stopped in adverse conditions the abs activating and exponentially extending the braking distance until it disnegages the abs, once activated, does not stop unless the brake pedal is lifted from its initial activation position the vehicle doesn't appear to have any mechancial braking issues. Everything seems to be related to the abs system, wheel-speed sensors and/or vehicle-management systems. The overall braking experience in this vehicle with the abs on is that it simply will not stop within a safe braking distance window. The only way to stop this vehicle is without abs. There is no other way to safely stop this vehicle with abs. I have reached out to my Hyundai dealer and hyndai corporate directly, both times being dismissed without anyone attempting to recreate the braking issues. I have a life's worth of experience driving in snow and multiple abs activations in a range of vehicles. This is abnormal based on all of the experiential knowledge I possess, as well as a lifelong interest in cars. While I am not an engineer, I possess enough firsthand and academic vehicle experience to recognize the abnormality of this vehicle braking operation.

12/26/2021 driving on i40 e between santa rosa and tucumcari using adaptive cruise control (scc) at approx 68 m. P. H the brakes were harshly applied which resulted in the vehicle rapidly DE-accelerating from approximately 68 m. P. H to approximately 5 m. P. H. (there was a warning displayed on the odometer panel). No vehicle or other obstacle within eyesight to the front, side of rear of our vehicle. Vehicle resumed driving on cruise. No warning prior to the event. Vehicle was taken to the local Hyundai dealership on 12/30/2021 for diagnosis, the mileage was 21066. The technician reported no dtc's found and suggested it might have been caused by the windshield mounted "dash cam", the "dashcam" was not in a position where it could possibly interfere with the vehicle camera, (it has been in the same position since vehicle purchase and remains in the same position today), possibly some critter that ran out in front of us and we did not notice it or maybe a big bug flew into the vehicle. Also there was no obstruction to the forward vehicle radar. The vehicle was not road tested. This fault since the first instance has not happened again. This fault has been noted by other owners on various Hyundai owners blogs. This vehicle has fca + pedestrian, scc, lka.