Tesla Autopilot

Elon Musk has unveiled what he said was a robotaxi capable of self-driving, predicting it would be available by 2027, about a decade after he first promised an autonomous vehicle.

Tesla is recalling nearly all vehicles sold in the U.S., more than 2 million, to update software and fix a defective system that's supposed to ensure drivers are paying attention when using autopilot.

Documents posted Wednesday by U.S. safety regulators say the update will increase warnings and alerts to drivers and even limit the areas where basic versions of Autopilot can operate.

Teslas with partially automated driving systems are a step closer to being recalled after the U.S. elevated its investigation into a series of collisions with parked emergency vehicles or trucks with warning signs.

Tesla is recalling more than 817,000 vehicles in the U.S. because the seat belt reminder chimes may not sound when the vehicles are started and the driver hasn't buckled up.

The recall covers the 2021 and 2022 Model S sedan and Model X SUV, as well as the 2017 through 2022 Model 3 sedan and 2020 through 2022 Model Y SUV, according to documents posted yesterday by safety regulators.