September 17, 2026 Service campaign

Received transmission mounting bolts that do not meet expected hardness specifications

Chevrolet technical service bulletin N262567720 for 2026 Chevrolet Silverado 2500, 2026 GMC Sierra 2500 and 2026 Chevrolet Silverado 3500 and others.

Bulletin number: N262567720 (N262567720)
Component: Power train
Summary: Certain vehicles may have received transmission mounting bolts that do not meet expected hardness specifications. Loose or failed bolts may result in hard shifting from the transmission and/or noise. Dealers will replace both transmission mounting bolts.

Owners of these vehicles have filed 5 complaints in the transmission category.

Vehicles covered

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