The U.S. government's auto safety agency wants to add two automatic emergency braking devices to its list of recommended safety features for new-car buyers.
But it's unclear when or if the National Highway Traffic Safety Administration will require automakers to put the devices on all new vehicles.
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The agency plans to add crash-imminent braking and dynamic brake support to its recommendations. Crash-imminent braking automatically stops a car if sensors detect a possible crash, while dynamic braking adds force to the brakes if the driver isn't pressing hard enough to avoid a crash.
The agency will decide later if the features should go on window stickers that show government safety ratings. A start date for the recommendations will come after public comment.
The proposed changes were announced Thursday in Washington.