The CHP report suggests the Tesla locked onto the other car headed directly at it

According to the investigation, 30-year-old Shawn Borecha was driving a white 2021 Tesla Model 3 southbound on Highway 145 at an undetermined rate of speed… entering the northbound lane….

In an attempt to avoid a head-on collision, the Hyundai’s driver veered into the southbound lane, but Borecha simultaneously returned to the southbound lane, resulting in a head-on collision.