US investigates 2.4m Tesla self-driving vehicles after reported collisions

Road safety agency opens evaluation over reported collisions in low visibility

The US government’s road safety agency has opened an investigation into 2.4m Tesla vehicles with the automaker’s Full Self-Driving software after four reported collisions, including a fatal crash.

The National Highway Traffic Safety Administration (NHTSA) on Friday said it was opening the preliminary evaluation after four reports of crashes where Full Self-Driving was engaged during reduced roadway visibility like sun glare, fog or airborne dust.