A U.S. government auto safety regulator has opened two separate investigations into Ford vehicles over concerns that prior safety recalls may not have been extensive enough. The National Highway Traffic Safety Administration (NHTSA) announced both probes, which collectively affect more than 500,000 Ford trucks and SUVs, on Nov. 15.

The U.S. auto safety regulator initiates a recall query on Ford SUVs due to seat belt retractor issues, following a $165M fine for delayed recall.

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

Just days after Ford was hit with a $165 million civil fine—the second-largest in U.S. automotive history—federal regulators have launched two new investigations into the automaker's recalls that may not have worked or covered enough vehicles.

The National Highway Traffic Safety Administration said on Monday it has opened two new investigations into Ford recalls, the latest scrutiny by U.S. regulators of the No. 2 U.S. automaker. Last week,

NHTSA unveils two investigations into recalls that may not have worked, just days after announcing civil fine against Ford for moving too slowly.

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.