NHTSA is investigating specific models of GM trucks and SUVs, as well as Cadillac SUVs, due to concerns over potential engine failure.

The National Highway Traffic Safety Administration is investigating a potential issue with certain models of General Motor trucks, Cadillac SUVs, and GMC trucks and SUVs with L87 V8 engines.

The NHTSA is looking into 39 reports of engine failures in GM vehicles equipped with V8 engines, which affects a total of 877,710 vehicles produced from 2091 to 2024.

The vehicles involved in the NHTSA investigation consist of the 2019-2024 Chevrolet Silverado 1500, 2019-2024 GMC Sierra 1500, 2021-2024 Chevrolet Tahoe, 2021-2024 Chevrolet Suburban, 2021-2024 GMC Yukon, and 2021-2024 Cadillac Escalade models.

The National Highway Traffic Safety Administration's Office of Defects Investigation is initiating a preliminary assessment to evaluate the extent and seriousness of a possible issue, as well as to thoroughly examine any related safety concerns.

The individuals filing the complaint have indicated a failure in the bearing, which could lead to either the engine seizing up or the connecting rod damaging the engine block. They note that there were no signs or indications of the issue before the failure occurred.