U.S. to allow drivers to choose 'quiet car' alert sounds

The agency in February 2018 finalized rules requiring EVs and hybrids to emit alert sounds to warn pedestrians of their approach, extending to 2020 the deadline for full compliance.

The long-delayed rules, which were first demanded by Congress in 2010, require automakers like Tesla Inc, Nissan Motor Co and General Motors Co to add sounds to vehicles when they are moving at speeds of up to 18.6 miles per hour (30 kph) to help prevent injuries among pedestrians, cyclists and the blind.

The agency on Monday said in response to a petition from automakers it was proposing to amend its rules “to remove the current limitation of one sound per vehicle model.” The agency wants public comment “on whether there should be a limit to the number of compliant sounds that a manufacturer can

install in a vehicle and what that limit should be.”