Tesla’s Full Self-Driving system is facing an expanded investigation by the National Highway Traffic Safety Administration over its safety during poor road visibility conditions, as previously reported by Reuters.

The NHTSA found that Tesla's one-pedal driving wasn't the cause behind claims of unintended acceleration, marking it safe from a potential recall.

"At this time, NHTSA is not aware of any technology that claims to achieve anywhere close to [the needed] level of accuracy," the report reads.