Automatic Emergency Braking problems of the 2020 Hyundai Palisade

I was recently involved in an accident with my 2020 Palisade that I believe may have been caused by a brake failure. I was simply moving the vehicle from one part of a driveway to another when, as I drove over a drainage ditch, the brakes did not respond and the car suddenly accelerated into a tree. I sustained facial injuries and was transported by ambulance to a nearby hospital. The vehicle is currently at canby motors in bel air and is available for inspection. The vehicle has only been inspected by canby motors to my knowledge at this time. There were no warning lamps, messages or other symptoms of the problem prior to the failure.

Passenger side rear brake caliper failed causing the brake to scrape into the rotor. The emergancy brake remained in the lock postion when the caliper failed. Locking the caliper in the up position and releasing brake fluid. Driver side brakes, caliper, and rotor completly intact and does not need replacing.

12/4/23 - driving from san diego to ventura county (home), my dash flashed something to the effect of "emergency braking system malfunction" as my brakes were engaged while driving 65-70 miles an hour (no vehicles close in front of me or on either side). This was very scary and could have caused an accident if there had been vehicles closer. Usually when this system j=kicks in you get a collision alert alarm, then braking initiates. There was no collision alert either. 12/11/23 - took vehicle in and Hyundai said they could not recreate and had me take vehicle home 1/1/24 - same thing happened on my way home from camping (emergency braking malfunction and brakes engaged while no vehicles around and nothing in front of me). This time the warning light (triangle with "!" in middle and a number 1 lit up on dash and stayed on until I turned car off (I have a photo). 1/18/24 - found this issue reported by multiple people on Hyundai online forum (emailed to manager at alexander Hyundai). 1/23/24 - took vehicle back in. Manager said he would check cameras as he believes this has happened before and they had to replace cameras. 1/24/24 - dealership called and said can't recreate and want me to pick up car. Told them this is going to cause a bad accident and they will be liable.

In traffic car jerked and swerved, panel lit up with picture of a car and words emergency braking. This was the second time. An earlier incident was on interstate and car jerked causing driver to think the rear had been hit. In this case oil light was seen to go on or off.

On 1/24/2023 I was driving down the road from my home to go to work when, as I was going down an incline, my brakes started pulsing and I lost all braking ability. I drove thru a stop sign, into the intersection and was able to steer the car down the road. It was down a hillside. I was able to eventually stop the vehicle approximately a mile and half from where the brakes failed. I was instructed by the dealership to have the car towed to them so they could evaluate what happened. I did this. The dealership is trying to assess what happened. After 1 week, they replaced all 4 tires, did an alignment and replaced a leaking rear shock. The vehicle had 36,201 miles as of 1/24/2023. The dealership claims that the wear on the tires and the vehicle being out of alignment caused the wheel speed sensor to misread the speed and triggered the abs to unlock all brakes. When this happened, all the warning lights for the braking system came abs, auto hold, traction control, forward colision avoidance system, downhill descent control. I had nothing to stop me. Thankfully, no other vehicles came thru the intersection when my vehicle lost control. The dealership has, after a week, supplied me with a loaner vehicle. They are trying to duplicate the loss of brakes and all the lights that were activated when I lost my brakes. I also mentioned to the service manager at the dealership that I have repeatedly been asking the technicians to check the tires and to rotate the tires at our last few service appointments and had been assured the tires were fine and the tire rotation would be done. We normally have the tire rotation done every 7,000 miles due to the fact that it is an awd. If this had been done as we requested, how could this happen? wouldn't someone have noticed uneven tire wear? our major concern is that when the brakes fail, you have no backup braking system in place. Is there something wrong with the programming for the electronic braking system?.

Emergency brakes came on ,on the freeway twice ,and one in front ,no other car around. On the right side a person in the parking lot while the car was moving about 2 mph ,walked next too the car and it felt like one brake came on only to slow me down and did not stop ,just braked for 2 seconds ,like on the freeway all the brakes came on the freeway, but in the parking lot only one came on it felt like.