US safety regulators have opened a probe focused on Tesla's electric-powered door handles, responding to reports that they suddenly stopped working, leaving children trapped in the cars.
The US National Highway Traffic Safety Administration said on Tuesday that it had received nine complaints about the handles in Tesla's 2021 Model Y cars, the company's flagship model.
In four of the cases, the car owners resorted to breaking the window to resolve the issue.
Tesla did not immediately comment on the investigation, which is the first step toward a potential recall.
NHTSA said its preliminary review found that the problem appeared to occur when the electric locks received insufficient voltage.
