2025 HYUNDAI IONIQ 5 Lane Departure Problems

The Lane Keeping Assist works well and is very useful. Unfortunately it is combined with the infrared eye monitor system, which is very flaky and does not work well with prescription glasses when sunlight comes in from the front or side. It provides many false warnings, but cannot be turned off without losing the Lane Keeping Assist. If I drive without my glasses, it works fine, but it seems counter-productive to make me lose a good functioning system by tying it to a flaky not-useful monitor.

1. Component/System: One-pedal driving / regenerative braking (i-Pedal mode). Vehicle is available for inspecti On three separate occasions since leasing the vehicle in April, 2025, the vehicle failed to decelerate when i-Pedal mode was active and I fully released the accelerator pedal. Instead of slowing immediately as expected, the car continued maintaining speed for a few seconds before eventually reducing speed. In all instances, the accelerator pedal returned fully to its default position, and my foot was completely off the pedal. My foot was hovering over the brake and prepared to brake manually. This unexpected continued acceleration created a safety risk, particularly in situations where I anticipated immediate slowing. Safety Risk: This behavior increases the risk of rear-end collisions or reduced reaction time in traffic. It causes uncertainty in vehicle response and requires sudden manual braking when the system fails to operate correctly. Inspection/Reproduction: The dealership has inspected the vehicle and has denied existence of any issues. Warning Lamps/Messages: No warning lamps or messages appeared before or during the events. ⸻ 2. Component/System: Blind spot monitoring / driver assistance sensors Since acquiring the vehicle, the blind spot monitoring system routinely activates warnings when vehicles are more than one lane away, not in the adjacent lane. This results in frequent false warnings, especially on multi-lane highways. Safety Risk: The false alerts cause distraction and hesitation during lane changes. The system startles the driver and forces additional visual checks beyond normal safe driving practice, increasing cognitive load and reducing confidence in the system’s accuracy. Inspection/Reproduction: This behavior is frequent and occasionally reproducible. Warning Lamps/Messages: System behaves as if detecting vehicles in blind spot even when lanes are clear.

FORWARD ATTENTION WARNING system incorrectly detects a driver's lack of attention when I drive wearing sunglasses consistently. Many times it will incorrectly detect lack of attention while not wearing sunglasses. The camera has perfect line of sight to my eyes. Turning the system off through the Driver Assistance features does not stop the problem. It drives me crazy and I'm unable to identify any solution to this problem and I have learned this is a very common problem with this year and model.

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 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.

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)

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?

I purchased my 2025 Ioniq 5 Limited less than a week ago and have found that adaptive cruise control and lane keeping assist systems are essentially non-functional because of repeated false warnings from the Driver Attention System. Purported to monitor the driver's attention by watching the eyes, this system clearly doesn't work well enough to serve it's purpose and, in fact, causes unnecessary distractions and unsafe conditions with repeated and frequent false positive warnings. The first warnings caution the driver to keep his/her eyes on the road (my eyes are on the road) and escalate to point where ACC and lane keeping assist are turned off. Since the drive attention warnings cannot be turned off when in ACC with lane keeping assist are active, the only recourse is to turn off lane keeping assist, making this system essentially non-functional and useless. Note: Hyundai is aware of this and has issued at least one TSB advising that some eyewear may prevent the system from functioning properly and that this is considered "normal" leaving the driver to find suitable eyewear. I do not usually drive with sun glasses and having the car manufacturer suggest that their system may be impacted by my prescription glasses (which I do wear while driving) and the fix to this potentially dangerous situation is to replace my glasses is ludicrous. I have also done limited testing without my glasses and find that it has no impact on the false warnings. Per Hyundai's TSB I have made sure that my driver's position is such that the monitor's camera has an unobstructed view of my eyes and is not blocked at any time by my hands or arms while I'm holding the wheel.

You cannot wear dark sunglasses while driving this car, as the safety systems are turned off because the car fails to recognize your eyes, as it can't see them through the sunglasses. How does the research and development side of making this ioniq 5 not see this? This ultimately forces you to drive without sunglasses, causing an unsafe environment while driving. This is a bad design for the car.

You cannot wear dark sunglasses while driving this car, as the safety systems are turned off because the car fails to recognize your eyes, as it can't see them through the sunglasses. How does the research and development side of making this ioniq 5 not see this? This ultimately forces you to drive without sunglasses, causing an unsafe environment while driving. This is a bad design for the car.

Car constantly gives false alarm that driver is not looking at road. It’s particularly bad with sunglasses or even normal glasses, but false alarms are common even without glasses in strong sunlight. It’s a serious safety issue because the car constantly beeps false warnings and threatens to disable driving assistance. Internet forums are full of users reporting same issue, this component is defective.

This car has a system called Forward Attention Warning (FAW) which monitors the driver's eyes using an in-cabin infra-red camera trained on the driver. When smart cruise control and lane following assist are both activated, FAW is forced ON by the car. If FAW thinks that the driver's eyes aren't on the road, it beeps, puts alerts on the panel visible to the driver and turns off all driving assist features. The problem I'm reporting is that the FAW system is completely broken. Even though I'm looking straight forward, it says I'm not paying attention to the road, sounds loud alerts, then eventually shuts off all of my driving assistance features. I wear glasses, and sometimes sunglasses to reduce glare when driving in bright conditions, and I've tried this with my prescription sunglasses, my normal prescription glasses and even without any glasses. The system erroneously triggers in all cases. I believe that the FAW system false positives is a safety issue because: 1. The constant false alerts are very distracting, making the driver look at the panel in front of them to try to figure out what it's saying, taking their eyes off the road 2. Lane following assist is, itself, a safety feature, by disabling it due to these false positives from the FAW system, this is reducing safety in the vehicle 3. The FAW false positives will abruptly disable the smart cruise control, which is controlling the speed of the car, as well as the lane following assist, helping to keep the car in the lane. This abrupt disabling of these systems can cause the car to slow suddenly and depart from the lane if going around a curve. This can be very dangerous.

The Forward Attention Warning system in the refreshed 2025 Ioniq 5 gives constant false positives for both my wife and myself when we are driving the car. With Hyundai's HDA and lane keep active, the system keeps chiming, claiming that the driver is not looking at the road when we are. In fact, the calibration is so poor that it is a safety issue. The constant random warnings are very distracting, and sometimes the system does not recapture your eyes before timing out and hard braking the car on the highway. This is really unacceptable and a safety issue that I'm surprised Hyundai thought it could release. Lots of evidence of other owners with this problem on the Internet: [XXX] [XXX] and many others. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)