U.S. auto safety regulators have opened an investigation into complaints that General Motors vehicles equipped with certain V8 engines, including its best-selling Silverado, can seize up without warning.

U.S. automobile safety regulators are closing their preliminary investigation into General Motors’ Cruise robotaxis without taking further action

The ODI currently investigates L87 engine failures in 2019 through 2024 trucks and sport utility vehicles from the Chevy, GMC, and Caddy brands

Sudden engine failure in some units of the Chevy Silverado, GMC Sierra, and full-size GM SUVs from the 2019-2024 model years poses a potential safety risk.

U.S. 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.

The National Highway Traffic Safety Administration is investigating reports of alleged engine failures in GM's 6.2-liter L87 V-8, an engine used in a wide variety of trucks and SUVs. NHTSA estimates that more than 877,710 vehicles could be vulnerable to the issue.

The NHTSA said on Wednesday that it has closed its probe into Cruise robotaxis in light of the company ceasing business operations.

The National Highway Traffic Safety Administration is investigating a potential issue with certain models with V8 engines for engine failure