Is your defective GMC Sierra 1500 actually a LEMON?

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GMC TSB #PIP5791

2021 GMC Sierra 1500

TSB Document:

MC-10190421-9999.pdf

Affected Component: ENGINE AND ENGINE COOLING

Summary: This Preliminary information communicates to dealership technicians to perform a sweep of the coolant flow control valve and test the circuits before replacing the Engine Coolant Flow Control Valve, and to assist engineering in root causingÂ the P2B60.

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Date Published: MAR 23, 2021
NHTSA TSB #: 10190421

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