A Tesla driver’s family had sought damages for the 2018 crash, which happened while the carmaker’s driver-assistance software was in use.
The feature raises fresh questions about whether Tesla is compromising safety as it rushes to add new technologies.
A Harris County sheriff’s constable said in April that evidence at the scene of the accident suggested that no one was driving the car when it crashed.
Two people died in the crash, and officials said no one had been behind the wheel. Elon Musk, Tesla’s chief executive, said recovered data showed “Autopilot was not enabled” in the vehicle.