2025 HYUNDAI IONIQ 5 Complaints

I turned on adaptive cruise control while on the highway and got an alert from the Forward Attention Warning system that I wasn't paying attention even though I was looking out at the road normally. The car eventually decided this meant I was unresponsive and initiated an automatic Emergency Stop in the middle of the highway. The only way I could get the adaptive cruise control to work as expected was to remove my glasses, which I need to see clearly and drive safely. I was able to disable the Adaptive Cruise Control and continue driving normally before the car stopped in the highway, but this seems like it could create a dangerous situation. After a bit of testing, I found that Forward Attention Warning system did not work with some pairs of my prescription glasses and some non-prescription sunglasses I use when I wear contact lenses. There does not appear to be a way to disable the Forward Attention Warning when using cruise control.

The car has a highway driving assist (HDA) system, but the system will not work when I am wearing sunglasses. It also has a lane assist system that is supposed to steer the car for you but it also fails and gives a message that the driver is not paying attention. The driver attention alert will not go away as long as I am wearing sun glasses. If I remove the sun glasses it works fine. Hyundai says I have to wear different sun glasses, but I have tried 4 kinds and none of them work with the system. They refuse to make any changes or repairs to the system.

The lane-keeping assistance system on this vehicle is equipped with a "driver attention monitoring system" that is meant to tell if the driver has his or her attention focused off the road. The trouble is that this system is far too sensitive and prone to very loud and distracting false alarms to the point where it becomes *MUCH* more distracting than the distractions it is meant to prevent. I almost lost control of the vehicle at freeway speeds once because the system alarmed so suddenly and loudly that it startled me. This needs to be fixed.

The ICCU unit has failed after 10 days of driving of the brand new 2025 Ioniq 5. It gave me a warning that the battery has failed while I was waiting on a signal light, and the car started limiting my speed. The car continued to get slower and slower, then it says battery regeneration failed at one point. The fastest I could go at one point was 30 mph. It was dangerous as I need to make sure the cars behind me don't come at me. When going uphill, I was only able to drive in 20mph. The car was taken back to the dealership to get serviced. They confirmed that the ICCU unit and the fuse have failed and my car will need a replacement.

Ioniq 5's yellow air bag wire/harness underneath driver seat has design flaw, many other owners are noticing. In my case the cables are touching the floor, it's a hazard.

Ioniq 5 is known to have a loose and possibly dangling wire underneath the driver seat. This wire is often uncovered and unshielded, and is susceptible to becoming damaged due to the automatic seats and adjustments. This wire directly operates the airbag and if damaged loses all functionality. Hyundai is not covering any damage to this wire under warranty, and this poses an immediate threat to anyone driving their vehicle.

Description of Defect/Incident Model and Feature: This complaint concerns a significant safety defect in the Driver Attention Monitoring System (DAMS), which is specifically the Forward Attention Warning (FAW) feature, on the 2025 Hyundai Ioniq 5. The Defect: The DAMS system is generating false positive "Pay Attention" warnings with an excessive, loud, and high-pitch chime multiple times per hour while the driver is clearly and actively paying attention to the road. This happens regardless of driving conditions (city, highway, sunlight, darkness) and without any valid trigger. Safety Consequence (The Critical Issue): This issue appears to be a systemic defect, as numerous other owners have reported the exact same pattern of frequent false warnings on online owner forums and social media groups. E.g. [XXX] , [XXX] The false warnings create an unreasonable risk to safety in two ways: Driver Distraction: The constant, intrusive, and erroneous auditory and visual warnings are a direct and severe driver distraction. The driver is forced to look away from the road to confirm the system status, check the camera light, or physically gesture to the camera, which is counterproductive to safe driving. Warning Desensitization: The high frequency of false alarms leads to the driver becoming desensitized to the warning chimes. This creates a severe risk that the driver will ignore or dismiss a future legitimate warning from the Forward Attention Warning or other critical safety systems, potentially resulting in a collision. Request for Action: I am filing this complaint to urge NHTSA to investigate this pattern of false warnings in the Hyundai Ioniq 5's DAMS/FAW system as a safety-related defect. The current behavior of the system creates a hazardous condition on the road that requires a prompt engineering solution or recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The car will not allow me to use the LKA feature while wearing sunglasses. It allows it, but it gives nonstop alarms and warnings, because it can’t see my eyes? It makes the feature nearly unusable, which takes the safety feature away from the user. Even with the warning turned OFF, it still beeps. There’s literally a setting to not activate the warning, it still does it. I’ll attach a photo of the setting turned OFF. And yet it still beeps constantly. I live in Los Angeles and the sun is bright here. There must be a fix for this?

Went to open the door and hand slipped off the handle and it snapped back crushing my finger. Nail turned black and finger was mangled for a few days, very unsafe door handles .

FORWARD ATTENTION WARNING When driving, the vehicle randomly and repeatedly warns the driver to pay attention to the road even when the driver is facing forward and paying attention to the road. The system will also randomly and repeatedly alarm, disable cruise control and apply the brakes even when the driver has both hands on the wheel and is facing forward. This has nearly caused crashes. Hyundai states the system is working as designed and suggested: 1. Driver is too tall for the system see my eyes. 2. Do not wear prescription glasses. 3. Do not wear sunglasses. Research has revealed hundreds and hundreds of similar complaints. Hyundai has issued a technical service bulletin 25-GI-001H stating there is nothing wrong with the vehicle and states drivers who are tall, short, wear glasses will experience this.