Acting after a Korean whistleblower reported concerns to the U.S. auto safety agency last year, the U.S. National Highway Traffic Safety Administration said it would review the timeliness of the engine recalls and whether the recall campaigns covered enough vehicles. The agency could impose fines if it determines the recalls were not conducted properly.
(Reporting by David Shepardson in WASHINGTON and Hyunjoo Jin in SEOUL, Editing by Soyoung Kim & Simon Cameron-Moore)
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