2020 HYUNDAI KONA Forward Collision Avoidance Warnings Problems

many times a year, without warning, vehicle dash lights turn off and light up like a christmas tree, followed by fca warning sound and lights going off, and a loud mechanical thud. Lose engine throttle going highway speeds. This can occur at nearly any speed without warning. Car must be powered off and back on to get normalcy. This puts me, everyone in the car and everyone on the highway at risk. Dealership was not able to reproduce or pull error codes.

Loud beep then a warning that collision warning had been disabled and the side mirrorsno longer indicated someone was beside me. . First time it's done this and I was on the way to the dealer for service. I mentioned to him and he said it was probably the light rain we had and it had blocked the camera. On the way home it did the same thing and now it was sunny, clear and they had just washed my car. So back to the dealer to have them actually check the sensor.

I was driving on the highway and there was no one around me and the forward collision warning went off. The car then braked on my behalf going 70 mph on the highway. THis has happened twice so far.

I have a 2020 Kona SE AWD and have a problem with a Check Forward Collision Sensor error that happens infrequently. When it happens, you get a ding then on the dash in a large graphic "check forward collision sensor" then BANG the brakes are applied for a split second and the car violently drops into a lower gear and revs until you turn the car off and "reset" the system. This has happened 4 times in the last 2 thousand miles. Been to the dealer twice and they cannot recreate the problem, so they can not fix anything. When this happens, its feels like a collision. It is scary and magnified at highway speed. It has happened at highway speed and low speed, both day and night.

FRONT-COLLISION WARNING LIGHT KICKS ON WHILE GOING 45-50MPH. NO OBSTRUCTIONS. BRAKES ENGAGE, STUCK IN 4TH GEAR. MUST PULL OVER AND RESTART CAR TO RESET. OCCURS INTERMITTENTLY, BUT HAS HAPPENED AT LEAST WEEKLY FOR THE LAST 6 WEEKS. IN AND OUT OF DEALER SEVERAL TIMES. BRAND NEW VEHICLE.

WHILE ON THE HIGHWAY, A MESSAGE "COLLISION DETECTION SYSTEM FAILURE" FLASHED ON THE INSTRUMENT PANEL, AND THE BRAKES SLAMMED ON FULL, FOLLOWED BY THE TRANSMISSION STUCK IN 4TH GEAR. I HAD TO LEAVE THE HIGHWAY, AND POWER OFF THE ENGINE - EFFECTIVELY REBOOTING THE CAR. I CONTINUED ON TO WORK BUT I SHUT OFF THE COLLISION DETECTION SYSTEM, WHICH HAS TO BE SET AT EACH POWER CYCLE. THIS HAS HAPPENED TO MY CAR 3 TIMES, TWICE ON THE HIGHWAY. DEALER SERVICE DOWNLOADED LOGS WITH NO INDICATION OF THE PROBLEM.