The National Highway Traffic Safety Administration (NHTSA) opened an investigation this Monday against Amazon robotaxis following two accidents with these vehicles.

The report claims that recently two Zoox cars, owned by Amazon, braked suddenly, causing two motorcycles to crash into the back of the vehicles. The motorcyclists ended up suffering minor injuries:

In the statement, the NHTSA explained that the two vehicles were operating in self-driving mode when the accident occurred. This concerned the NHTSA, which decided to investigate another 500 vehicles, focusing especially on Zoox automated driving performance and, specifically, in the behavior adopted by this technology "in crosswalks around vulnerable road users, and in other similar rear-end collision scenarios."

Second investigation against Amazon robotaxis

This is not the only problem Zoox is facing. As CNBC recalls, the NHTSA announced in March that it was launching an investigation in relation to the self-certification of vehicles owned by Amazon in 2022 since they had doubts that the robotaxis complied with federal safety standards.

Meanwhile, Zoox is continuing to test out its robotaxis in Las Vegas, Nevada and Foster City, California. The company announced that it has not ruled out expanding its operating routes in those areas so that these vehicles can be tested out in larger areas, at higher speeds, with night driving and in light rain.