General Motors Recalls Nearly 600,000 Vehicles In The U.S. Over Engine Failure Risk

General Motors has announced a voluntary safety recall of 597,630 vehicles that were manufactured between March 1, 2021 and May 31, 2024, due to possible defects in the engine components of several models. The affected vehicles are all equipped with the 6.2L V8 engine (RPO code L87), which may contain manufacturing issues in the connecting rods or crankshafts.

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According to the report filed by GM to NHTSA, General Motors has decided that a defect which relates to motor vehicle safety may exist in certain 2021 – 2024 model year Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban and Tahoe and GMC Sierra 1500, Yukon and Yukon XL vehicles equipped with the 6.2L V8 gas engine (RPO L87). The connecting rod and/or crankshaft engine components in these vehicles may have manufacturing defects that can lead to engine failure

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If the engine fails during vehicle operation, the vehicle will lose propulsion, increasing the risk of a crash. Engine teardown analysis identified two primary root causes, both of which are attributable to supplier manufacturing and quality issues: (1) rod-bearing damage from sediment on connecting rods and crankshaft-oil galleries and (2) out of specification crankshaft dimensions and surface finish, the report added.

To deal with the issue GM authorized dealers will inspect and, if necessary, replace the engine. For vehicles that pass the inspection, GM will apply a higher viscosity engine oil and provide a new oil filter, oil cap, and updated owner’s manual instructions.

This action comes after GM received over 28,000 engine-related complaints, including 14,332 reports of propulsion loss and a small number of alleged crashes and injuries. GM has linked the issue to manufacturing problems during specific periods.