Is your defective GMC Sierra 1500 actually a LEMON?

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GMC TSB #19NA263

2022 GMC Sierra 1500

TSB Document:

MC-10212617-9999.pdf

Affected Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

Summary: This informational bulletin explains a normal condition for sludge to form in the oil cap when equipped with DEF system.

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Date Published: JAN 13, 2022
NHTSA TSB #: 10212617

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