Is your defective Chevrolet Silverado 3500 actually a LEMON?

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Chevrolet TSB #21NA128

2021 Chevrolet Silverado 3500

TSB Document:

MC-10198891-9999.pdf

Affected Component: ENGINE AND ENGINE COOLING

Summary: This technical bulletin provides repair information to correct a customer concern of MIL Illuminated- ECM Update for P026C, P20EE, or P11D5.

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Date Published: MAY 28, 2021
NHTSA TSB #: 10198891

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