Is your defective GMC Sierra 3500 actually a LEMON?

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GMC TSB #21NA006

2021 GMC Sierra 3500

TSB Document:

MC-10187769-9999.pdf

Affected Component: ELECTRICAL SYSTEM

Summary: This bulletin provides a possible location of a bad connection at the reductant fluid tanks electrical connector.

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Date Published: JAN 21, 2021
NHTSA TSB #: 10187769

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