Your Tesla could explain why it crashed. But good luck getting its Autopilot data

The dashboard of the software-updated Tesla Model S P90D shows the icons enabling Tesla's autopilot, featuring limited hands-free steering, making the Tesla the closest thing on the market to an autonomous-driving enable vehicle. — Chicago Tribune/TNS

On Jan 21, 2019, Michael Casuga drove his new Tesla Model 3 southbound on Santiago Canyon Road, a two-lane highway that twists through hilly woodlands east of Santa Ana, California.

He wasn't alone, in one sense: Tesla's semiautonomous driver-assist system, known as Autopilot – which can steer, brake and change lanes – was activated. Suddenly and without warning, Casuga claims in a Superior Court of California lawsuit, Autopilot yanked the car left. The Tesla crossed a double yellow line, and without braking, drove through the oncoming lane and crashed into a ditch, all before Casuga was able to retake control.