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April 23, 2026 Service campaign

Certain vehicles, may have a condition that could cause the Catalytic Converter to fail

Chevrolet technical service bulletin N262548050 for 2019 Chevrolet Silverado 1500 and 2019 GMC Sierra 1500.

Bulletin number
N262548050 (N262548050)
Component
Engine
Summary
Certain vehicles, may have a condition that could cause the Catalytic Converter to fail. If this failure occurs, the Malfunction Indicator Light (Check Engine Light) will illuminate, and a diagnostic trouble code will set. Dealers are to replace the Catalytic Converter as necessary. The repairs will be made at no charge to the customer.

Owners of these vehicles have filed 758 complaints in the engine category.

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