The 'Active Hood' feature, which raises the rear part of the hood by approximately 80 millimeters (3.1 inches) upon detecting a pedestrian impact at speeds between 30 and 52 kilometers per hour (18.6–32.3 miles per hour), aims to cushion the impact on a pedestrian's head, thereby reducing injury risks. This feature was first identified by Tesla enthusiast @tesla_adri and is detailed in the European user manual for the refreshed electric vehicle. An alert and a chime notify the driver when the 'Active Hood' is activated, necessitating a visit to a Tesla Service Center or approved body shop for repositioning.
Previously available only in select markets for Model S and Model X, this passive safety feature is now extended to all new Model 3 vehicles, at least in Europe. Additional safety features discovered by @tesla_adri include metal hooks on the lower doors for alignment in crashes and a 'Driver Drowsiness Warning' system that monitors the driver's yawns and blinks, issuing alerts accordingly.
While the updated Model 3 is not yet available in the United States, its presence in California via uncamouflaged prototypes suggests imminent North American deliveries, likely featuring the same enhancements as the European model.
Source: InsideEVs