Hyundai recalls 421,000 U.S. vehicles over brake software defect (picture alliance / Getty Images)Hyundai Motor is recalling 421,078 vehicles in the U.S. after a software error was found to risk causing unexpected braking in certain models, the National Highway Traffic Safety Administration said on Friday.Among the affected vehicles, per Reuters, are Santa Cruz, Tucson, Tucson Hybrid, and Tucson Plug-In Hybrid Electric models from the 2025 and 2026 model years.According to the NHTSA, the root cause is a faulty software calibration in the front cameras that can trick the forward collision avoidance system into braking when no imminent collision exists, creating crash hazard conditions. Owners can have the front camera software corrected free of charge at any authorized dealership.AdvertisementAdvertisementThe brake recall is the latest in a series of safety actions from the South Korean automaker. Earlier this week, Hyundai recalled 54,337 Elantra Hybrid vehicles in the U.S. after the NHTSA warned that the hybrid power control unit in certain 2024-2026 model year sedans could overheat under high electrical demand, posing a fire risk. A software update for that issue will also be available at no cost through dealerships.Hyundai has had several recalls in recent months. The company recalled 294,128 vehicles after the NHTSA found that seat belt anchors in some Ioniq 6, Genesis G90, Santa Fe, and Santa Fe Hybrid models could come loose, which might leave people unprotected in a crash. In another case, Hyundai stopped selling some 2026 Palisade trims after a child died, because the company was concerned that power seats in the second and third rows might not detect passengers or objects.