Is your defective GMC Sierra 3500 actually a LEMON?

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GMC TSB #PIE0695

2021 GMC Sierra 3500

TSB Document:

MC-10212951-0001.pdf

Affected Component: FUEL SYSTEM, DIESEL

Summary: This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards Service Emission System and/or DEF Level Low message on driver information center (DIC).

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Date Published: MAY 11, 2022
NHTSA TSB #: 10212951

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