The National Highway Traffic Safety Administration on Friday opened an investigation into 870,000 cars manufactured by General Motors after receiving reports of engine failure.

Complaints received by the agency allege a bearing failure that may result in either an engine seizure or a breaching of the engine block. GM said it is cooperating with the agency.

A recall of the affected models, which include the Chevrolet Silverado 1500 and GMC Sierra 1500, may be issued if needed.