Amazon.com's self-driving unit Zoox agreed to recall 258 vehicles due to issues with its automated driving system that could cause unexpected hard braking, after a U.S. investigation, according to a company filing Wednesday.

The recall affects cars equipped with self-driving software versions released before November 5. The company said it has addressed the issue.

Amazon (NASDAQ:AMZN) disclosed on Wednesday that self-driving unit Zoox recalled 258 vehicles due to issues with its automated driving system. Zoox said that in certain driving scenarios, such as when a motorcyclist rapidly approaches the rear of the vehicle or a cyclist enters a nearby crosswalk,

Tesla has secured the first of several regulatory approvals required to launch a robotaxi service in California, US. The California Public Utilities Commission (CPUC) had granted Tesla a transportation charter-party carrier (TCP) permit,

Tesla (NASDAQ:TSLA) secured a permit from the California Public Utilities Commission (CPUC) on Tuesday to operate a transportation service in the state, marking the first step in a lengthy regulatory process that could ultimately pave the way for the company to launch a robotaxi service there.

Tesla received its first regulatory approval in CA for a potential robotaxi service, marking an initial step toward CEO Elon Musk’s vision.