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.

The U.S. National Highway Traffic Safety Administration said on Friday it was opening a preliminary probe into 877,710 vehicles manufactured by General Motors, after receiving reports alleging engine failure.

US auto safety regulators are probing General Motors Co. over concerns that more than 870,000 of its full-size pickup trucks and SUVs face the risk of engine failure.