Is your defective GMC Sierra 3500 actually a LEMON?

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GMC TSB #19NA187

2022 GMC Sierra 3500

TSB Document:

MC-10212612-9999.pdf

Affected Component: ENGINE AND ENGINE COOLING

Summary: This bulletin provides additional information on how to graph a cylinder misfire and a possible diagnostic cause.

Click a tab for more information.

Date Published: JAN 12, 2022
NHTSA TSB #: 10212612

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