Newer Tesla Model 3 and Model Y vehicles will no longer be called having some advanced safety features after the automaker said it was removing radar sensors to change to a camera-based Autopilot system, the National Highway Traffic Safety Administration (NHTSA) said Wednesday. The US agency confirmed it updated its website to indicate that Tesla Model 3 and Model Y vehicles produced on or after April 27 “do not have NHTSA’s checkmark for recommended safety technologies: forward collision warning, lane departure warning, crash imminent braking, and dynamic brake support.”

Both Tesla models have received five stars for crash and rollover safety, NHTSA’s highest rating, and which is unaffected. The choice came amid growing study by regulators and media coverage about the safety of Tesla’s ‘Autopilot’ and ‘Full Self-Driving (FSD)’ features. While most companies like Alphabet Inc’s Waymo equip autonomous cars with cameras paired with sensors like lidars and radars, Tesla depends on cameras and one radar to detect and analyze objects.

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Tesla’s approach helped reduce prices and commercialize its driver assistant features, but it has raised safety concerns. Tesla said the transition to a camera-focused system may result in limitations of some features such as lane-centering and parking assistance, functions which it said will be restored via software updates “in the weeks ahead.” All-new Model S and Model X cars, additionally as all vehicles built for markets outside North America, will still be equipped with radar, Tesla said.