Tesla Motors says data suggests that a driver's hands were not on the wheel in a recent accident in the US state of Montana in which a Model X veered off the road and collided with a post.
The driver had enabled autosteer on an undivided mountain road, a Tesla spokesperson said in a short statement on Tuesday.
The company said on Monday that it was looking into the crash.
"No force was detected on the steering wheel for over two minutes after autosteer was engaged," Tesla said, adding that it was contrary to the system's terms of use.
