US Opens Probe Into Freightliner Trucks Automatically Braking Without Obstacle In Road

"The agency says it tested one of the trucks and it stopped for a steel trench plate on the road. Daimler Trucks said the trench plate does not represent real-world driving.

NHTSA says it will determine whether the braking problem is an unreasonable risk to safety.

The complaints don't cite any crashes or injuries due to the problem.

 NHTSA says more than 750 Tesla owners have complained of false braking.

During the same month, the agency opened an investigation of more than 1.7 million Hondas for a similar problem. At the time NHTSA said it had 278 complaints about the problem.

The U.S. government is in the process of adopting regulations to require automatic emergency braking on all new passenger vehicles and heavy trucks.