Elon Musk Pans Pilot Version of Tesla's Driver-Assistance Feature

Elon Musk on Monday panned a pilot version of an advanced driver-assistance feature Tesla Inc. is developing, a week after U.S. car-safety regulators opened a probe into a more basic iteration of the company's driving aide. The statement amounts to a public concession by the Tesla CEO of a shortcoming in a driver-assistance feature designed to help vehicles steer through urban areas. The feature, available on a relatively small number of vehicles as part of a pilot program, is part of what Tesla calls Full Self-Driving, or FSD, technology. "FSD Beta 9.2 is actually not great," Mr. Musk said via Twitter, adding the company "is rallying to improve as fast as possible." Tesla vehicles come equipped with driver-assistance technology the company calls Autopilot.