2025 HYUNDAI IONIQ 5 Complaints

The Driver Attention Warning system fails every time I put the car in Cruise Control. I have adjusted my seat and the steering column but no relief. I have removed my hat and sunglasses with no relief. I have my hands at 8 and 4. The DAW IR tracking causes a visual warning in the dashboard and then a horrific cacophony if I try to ignore the warning. Two weeks ago an OTA was downloaded which purported to improve the sensitivity of head movement. It is not improved, if anything it is quicker to warn. In settings I turned off the Lane Following Assist and Driver Warning Assist each time I start the car. This does nothing to impact the failure of the DAW. The lack of Cruise Control on long drives causes fatigue and does not help with safety. The constant harassment of the DAW warning does not lend to safer driver. This whole system is intrusive and not making driving safer.

Our *2025* Hyundai Ioniq 5 experienced a complete failure of the ICCU (Integrated Charging Control Unit). The car displayed numerous warnings including "Check brake system", "Check 12V battery. Stop safely and engage parking brake", and "Check parking distance warning system". The car stopped working completely and would not turn on again. A towing company had to be called as the car was completely inoperable.

The vehicle’s driver monitoring / Forward Attention Warning system repeatedly gives false inattentive-driver warnings during normal highway driving, even when I am actively watching the road and driving normally. The system does not appear to function reliably with ordinary sunglasses and common driving conditions. The issue happens frequently when wearing sunglasses. The system incorrectly determines that I am not paying attention, despite looking directly ahead at the roadway. When this happens, Highway Driving Assist and lane-centering functions may disengage or become unavailable. This occurs in normal daytime driving conditions and appears overly sensitive to environmental factors, including reflections, lighting conditions, and driver seating position. I typically receive multiple false warnings during a single drive. This is a significant safety concern because: Driver assistance features can unexpectedly disengage during highway driving. The repeated false warnings are extremely distracting and can result in drivers ignoring or becoming desensitized to alerts. There are many similar owner reports online describing the same issue with Hyundai’s driver-monitoring system. Hyundai has issued a technical bulletin describing the problem but has made no indication that it intends to fix this significant flaw. My vehicle's software is fully up-to-date.

ICCU or other electrical issue. The problem was confirmed by dealer. Car was towed after it would not start.

Heard a pop sound, drove three-mile back to house, with car throttled speed to 20 MPH on 35 MPH roads. Leased 2025 Ioniq 5 at 4553 mi. Once back, completely died, vehicle wouldn't lock, start or move. We had vehicle towed to Dealer (20 miles away). No warning lights, no notices. The vehicle needs a new ICCU, the associated fuse and a new 12-volt battery. This is a known recall for the Ioniq 5 2020-2024. When leasing this 2025, we were assured the problem was fixed on the 2025 - Clearly that is not the case. This is ridiculous- it should be a recall and fixed proactively rather than a crash potential hazard for the driver.

The ICCU failed just before the vehicle had 20k miles on it. It failed on a warm afternoon with about 77% SOC after not being charged for more than 24 hours. Immediately after starting the car with the push button ignition, I heard an audible "pop" come from the back of the passenger cabin followed up by a "Check Vehicle Electrical System" message on the dashboard. There was no warning prior to this issue and the vehicle had been driven approximately 5 miles around town about an hour earlier. I can confirm the failure was the ICCU because the 12V batter stopped receiving charge thereafter confirmed by me watching the battery voltage drop for about 10 minutes. The vehicle has not been assessed by a dealership yet as of this writing.

The ICCU went bad. I am not able to charge it at my house, because it causes the breaker to trip. It does successfully charge at a charging station. But then I learned the power could also go at any point and leave me stranded. The local Hyundai dealer (Burns Hyundai) cannot even look at my car for a month. I discovered that Hyundai has known about this issue for four years and doesn't have a real solution, just replaces the part with another of the same one. The car is not safe to drive at the moment, but I also feel like it will never be trustworthy on a longer drive as long as there's no real fix. Along with the dealer, I reported this twice to Hyundai customer service.

The emergency steering will engage at random times. The car makes a loud noise, a light on the dashboard illuminates, and the car will try to drive into another lane. This happens at least once a week, and it has never happened when there was another car around, so I wasn't about to get into a collision. It has happened when there is construction and the lane markers are unclear, when the road is a little wet and other times I can't explain. I have always been able to shove it back into the lane I want to be in, but this also seems incredibly unsafe. It could drive me into any sort of situation involving other cars or off the edge of a road. I've Googled and I am not alone in experiencing this problems. I reported this twice to Hyundai customer service.

A collision occurred when the vehicle failed to detect a stationary stop-sign pole directly in front of it. The forward collision-avoidance system did not provide any braking assistance or intervention before impact. The vehicle is equipped with the full safety and driver-assistance package, including camera and radar-based collision-avoidance features, so the system was expected to recognize an obstacle in the vehicle’s path. The failure created a safety risk because the vehicle did not respond to an object directly ahead, and the driver relied on the advertised safety features to help prevent or mitigate such collisions.

On April 20th while parking the vehicle suddenly had a power surge crossing over multiple curbs and across a parking lot and landscaped areas and hitting a tree. The vehicle refused to brake and the driver airbag never deployed.