Ford Motor Company has agreed to pay $165 million, the second-largest auto penalty ever issued by the National Highway Traffic Safety Administration, to settle charges it failed to comply with federal recall requirements.

Just days after announcing a civil fine against Ford for moving too slowly on a recall, the U.S. government unveiled two investigations into recalls that may not have worked or covered enough vehicles

The federal government says it has launched two investigations into Ford's recall practices after some were not comprehensive enough and others may not have worked to solve the problem.