NHTSA Complaint #11699416 — 2023 HYUNDAI SANTA FE

Component/System: Automatic Emergency Braking / Forward Collision-Avoidance (AEB/FCA) system and/or Electronic Parking Brake (EPB). The vehicle is available for inspection upon request. What happened: While driving my 2023 Hyundai Santa Fe (VIN: XXX) at highway speeds, the vehicle suddenly and aggressively applied the emergency braking system on two separate occasions within the same day (approximately 45–60 minutes apart). In both instances, the red emergency braking warning lights illuminated on the dashboard, and a warning sound activated. There were no vehicles, obstacles, or hazards in front of me either time. The braking was forceful and abrupt, causing rapid deceleration at highway speed. Both events occurred under normal, clear driving conditions. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Safety risk: My safety and the safety of other drivers were put at significant risk. Sudden unintended braking at highway speeds can easily lead to a rear-end collision since the deceleration was not caused by driver input and gave no warning. Reproduction / dealer confirmation: The dealer has not been able to reproduce the issue, and no diagnostic trouble codes have been found so far. The vehicle is currently at the dealership for inspection. Inspection: The vehicle has been inspected by the Hyundai dealership, but the cause has not been identified. No manufacturer field engineer, police, or insurance inspection has taken place yet. Warning lamps / prior symptoms: During the failures, the red emergency braking indicator and audible warning activated immediately when the brakes engaged. There were no warning lights or symptoms prior to either event. Assessment: Cause UNKNOWN. The problem appears to be an intermittent malfunction of the Automatic Emergency Braking system, forward collision sensors, or related braking components. No diagnostic codes were stored. This is a serious safety issue that occurred twice within one hour and could easily result in a collision.