2022 Hyundai Ioniq 5 driver assistance problems

Filed Aug 3, 2026 · Driver assistance, Electrical · AZ

While driving 70mph on the highway in Phoenix, multiple emergency lights illuminated on the dashboard and I lost all control over the steering wheel and braking mechanisms. The car has been serviced regularly with multiple check-ins focusing on battery efficiency.

Filed May 13, 2026 · Brakes, Driver assistance · MD

Unknown. It just happened in November and i called Hyundai but they didn't want to fix it. I haven't been able to use my car properly since then.

Filed Nov 4, 2025 · Acceleration, Driver assistance · FL · crash

I was coasting into a library parking space with my foot off the accelerator. The car accelerated even with my foot on the brake, jumped a curb and was stopped with above ground tree roots. The dashboard should have been lighted up with collision warning indicators and the automatic braking should have engaged. It did none of that. The car was totaled. Nothing was ever checked to see if it was a mechanical error. My insurer totaled the car.

Filed Apr 1, 2025 · Acceleration, Driver assistance · TX

Instrument panel on car will not turn on when car is started. Thus, all advanced cruise control and safety systems do not function. Car has not been to the dealership for repair yet. There were no warnings or any other indication that there was an impending problem.

Filed Mar 16, 2025 · Acceleration, Driver assistance · PA

While driving on the highway in foggy conditions, the smart cruise control system and forward safety system suddenly shut off while I was going 70 miles an hour. This almost resulted in a car rear ending me due to the sudden deceleration. The following day, with clear weather, the same issue happened again despite nothing appearing to have caused this issue while I was driving. This is a very serious concern to suddenly stop on a highway.

Filed Sep 3, 2024 · Driver assistance · TX · crash

ABS or All wheel Drive did not seem to work while driving on a Highway, and I tried to stop as there was another vehicle on the road which was spinning out of control. If ABS was activated, the car would have stopped, and similarly if All wheel Drive was working, car would not have spun out of control.

Filed May 22, 2024 · Driver assistance · NJ

Forward safety system error message on dashboard. Dealer found DTC codes below ADAS_DRV ADAS Driving ECU C28B186 CAN Signal Error FR_RDR FR_RADAR Front Radar C162078 Alignment failed Dealer states alignment failing not covered under warranty even though no damage visible on vehicle. Unable to afford repairs if not covered under warranty. Radar is clearly faulty as there is no damage to vehicle.

Filed Apr 5, 2024 · Driver assistance · CA

ICCU stopped charging my auxiliary battery (Hyundai Ioniq 5). I couldn’t figure out why, but I began carrying a portable charger with me which instantly got my car going again. One day during a particularly nasty snow storm, my battery was dead again and I jump started my car. I drove it about 40 feet before I realized it needed snow socks. I stepped out of my car and got back in and a whole myriad of warnings were going on. I got a code for the vent flaps (snow had got stuck in there…that was an easy fix. Also my Auto Hold light, Check ABS light, and Smart Cruise Control warning indicator lights were all on and are still two months later still not working. The car otherwise operates well enough to drive as I replaced the auxiliary battery. Since replacing the battery, the car operates as well as the ICCU (it charges the new battery) but the previous issues remain.

Filed Jan 11, 2024 · Driver assistance, Electrical · 19,000 miles · NY

The contact owns a 2022 Hyundai Ioniq 5. The contact stated that while driving at 50–60 MPH, the Forward Collision Avoidance and Lane Assist warning lights were illuminated. The vehicle was taken to the local dealer, where the instrument cluster went blank. The dealer was unable to determine the cause of the failure. The manufacturer was contacted and opened a case. The manufacturer sent a technician to diagnose the vehicle. The technician stated that the VCU, battery, ICCU, and high-voltage battery needed to be replaced. The vehicle was repaired, but the failure recurred. The vehicle was taken back to the local dealer, but the vehicle was not diagnosed or repaired. The failure mileage was 19,000.

Filed Jan 5, 2024 · Driver assistance · IN

The cruise will shut off randomly saying the radar is blocked. When it does this the car decelerates very fast. Which is very dangerous in traffic. I’ve almost been rear ended a few times. It has also just started decelerating very fast when in cruise on highway for no apparent reason with no one in front of me.