Jul 7, 2026Electrical systemSpeed controlBrakes
1. Sudden Unintended Acceleration On two (2) separate occasions, after coming to a complete stop at a red light with foot on the brake pedal, the vehicle suddenly lurched forward on its own. 2. Brake Pedal Malfunction On more than ten (10) occasions, when attempting to stop at a light, the brake pedal briefly behaves like the accelerator for approximately 1–2 seconds. Driver has to release the brake and press it again to restore normal braking function. 3. Doors Unlocking/Opening on Their Own On more than one hundred (100) occasions, approximately 10 minutes after parking — with no key fob or phone nearby — a door opens on its own. Confirmed via mobile app notification and visual confirmation from a distance each time. 4. Apple CarPlay Connectivity Issues CarPlay frequently fails to connect. During phone calls specifically, the connection drops in and out intermittently. 5. Sticky Residue on Door Handles A sticky, adhesive-like residue is present on the interior passenger door grab handle and rear door handles. Residue does not clean off and transfers to hands on every use.
NHTSA ODI 11748714
Jul 7, 2026Electrical systemSpeed controlBrakes
1. Sudden Unintended Acceleration On two (2) separate occasions, after coming to a complete stop at a red light with foot on the brake pedal, the vehicle suddenly lurched forward on its own. 2. Brake Pedal Malfunction On more than ten (10) occasions, when attempting to stop at a light, the brake pedal briefly behaves like the accelerator for approximately 1–2 seconds. Driver has to release the brake and press it again to restore normal braking function. 3. Doors Unlocking/Opening on Their Own On more than one hundred (100) occasions, approximately 10 minutes after parking — with no key fob or phone nearby — a door opens on its own. Confirmed via mobile app notification and visual confirmation from a distance each time. 4. Apple CarPlay Connectivity Issues CarPlay frequently fails to connect. During phone calls specifically, the connection drops in and out intermittently. 5. Sticky Residue on Door Handles A sticky, adhesive-like residue is present on the interior passenger door grab handle and rear door handles. Residue does not clean off and transfers to hands on every use.
NHTSA ODI 11748715
May 4, 2026AirbagsBrakesEngineCrash1 injury
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.
NHTSA ODI 11735454
Apr 2, 2025BrakesDriver assistanceLane Departure
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)
NHTSA ODI 11652207