Mazda recalled more than 12,000 MX-5 sports cars due to potential failure to detect and warn of steering malfunction.

The Japanese automaker says all units of the recalled population have the flaw, which increases risk of crashing.

The MX-5, known as the Mazda Roadster in its native Japan, is marketed in the U.S. as the Miata. The version in question is a 2019-updated model of the vehicle's fourth generation.

The software error in the traction control and dynamic stability control systems prevents warning indicator lighting when under- or over-steering results from sudden steering maneuvers, leaving the driver unaware of the problem. 

A supplier detected the flaw when verifying a separate issue on a model in development, according to documents filed with the National Highway Traffic Safety Administration.

Mazda said it’s unaware of any crashes or injuries related to the flaw and hasn’t received any U.S. consumer complaints. Its dealers will replace the DSC unit. 

The automaker, which introduced updated software at the Japan assembly plant where the Miata is made in March, is scheduled to mail recall notices to owners on July 21.

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