Hyundai Motor America has recalled more than 4,21,000 vehicles in the United States over a software defect that can trigger sudden, unexpected emergency braking, raising the risk of rear-end collisions, according to documents filed with the National Highway Traffic Safety Administration (NHTSA). The recall, announced in May 2026, affects select 2025 and 2026 model-year variants across four nameplates.

Affected Models

The recall covers the Hyundai Tucson, Hyundai Tucson Hybrid, Hyundai Tucson Plug-In Hybrid, and the Hyundai Santa Cruz. According to the NHTSA safety recall report, a software error in the front-facing camera module may cause the Forward Collision-Avoidance Assist (FCA) system to misidentify obstacles on the road, prompting it to apply emergency brakes even when no actual hazard is present.

What the Defect Does

Federal safety regulators indicate the fault lies in the vehicle's sensor framework, which may misread environmental data and prematurely activate the braking system while the vehicle is in motion. The result — a sudden, unprovoked hard stop — significantly increases the risk of a following vehicle colliding from the rear. Between October 2024 and April 2026, Hyundai reportedly received 376 consumer complaints tied to sudden braking incidents. The defect has been linked to four crashes and four injuries, though no severe injuries have been reported so far.

The Fix and Timeline

Hyundai dealers will install updated front-camera software at no cost to owners. Notification letters are expected to be mailed by 17 July 2026. The company has not advised owners to stop driving the affected vehicles, but has urged them to schedule a service appointment once they receive official notification.

A Pattern of Recent Recalls

This recall follows closely on the heels of a separate Hyundai action just weeks earlier, when the automaker recalled more than 54,000 vehicles in the US over a fire-risk issue linked to overheating in the hybrid power control unit. The back-to-back safety actions spotlight growing regulatory scrutiny of advanced driver-assistance systems (ADAS), where software-driven features — designed to prevent accidents — can themselves become a source of hazard when algorithms misinterpret sensor data. This is not an isolated industry challenge; multiple automakers globally have faced NHTSA probes over phantom braking in collision-avoidance systems in recent years.

What Owners Should Do

Owners of the affected 2025–2026 Hyundai Tucson and Santa Cruz variants are advised to watch for the official notification letter and contact their nearest authorised Hyundai dealer to schedule the free software update. The NHTSA recall database can also be searched using a vehicle's VIN to confirm eligibility.