GM Voluntarily Halts Sales of 6.2L Trucks and SUVs

General Motors has halted sales of all full-sized pickup trucks and SUVs fitted with the 6.2-liter L87 V8 engine from model years 2021 through 2024 due to worries about issues with the connecting rods and crankshafts leading to engine malfunctions.

Key Points

• General Motors has announced a recall covering their 2021 through 2024 full-sized pickup trucks and SUVs that come with a 6.2-liter V8 engine. The reason for this action is an issue involving possible problems with the connecting rods and crankshafts, which might result in unexpected engine failures.
• A sales halt has been implemented for impacted Cadillac, Chevrolet, and GMC models, mandating inspections. Vehicles that clear these checks will be serviced with high-viscosity 0W-40 engine oil and provided with an updated section in their owner’s manual.
• The 2025 models aren't impacted due to improved production methods, however, the supply of 6.2L V8 trucks and SUVs continues to be restricted.

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The action comes after a formal NHTSA inquiry into GM trucks and SUVs fitted with the L87 engine following many reports of issues. customers reported unexpected engine malfunctions earlier this year GM has acknowledged this problem and initiated a voluntary recall, pointing out possible flaws in the connecting rods and crankshafts that might result in severe engine failures and raise the likelihood of crashes.

The affected models encompass the Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, Tahoe, as well as the GMC Sierra 1500, Yukon, and Yukon XL. General Motors has implemented an instant halt to sales of unshipped units, mandating that every vehicle currently with dealers must undergo inspection prior to sale or delivery.

When technicians detect diagnostic trouble code P0016, indicating issues with the crankshaft or camshaft alignment, vehicles that successfully clear the check will receive an upgrade using high-viscosity 0W-40 motor oil, along with a fresh oil cap and an amended section in their owners' manuals. Those that do not meet the standards might necessitate replacing the entire engine.

The recall highlights discrepancies in manufacturing tolerances that might lead to early component wear or complete engine failure. General Motors recommends using heavier 0W-40 motor oil to enhance protection during heavy loads and elevated temperatures, which matches standards observed in their performance vehicles such as the Camaro and Corvette.

GM produces the 6.2L L87 V8 engine at Tonawanda Propulsion, which is the company’s long-standing engine assembly facility located in Buffalo, New York.

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