Is your defective GMC Sierra 1500 actually a LEMON?

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GMC TSB #PIT6032B

2023 GMC Sierra 1500

TSB Document:

MC-10239177-9999.pdf

Affected Component: ENGINE AND ENGINE COOLING

Summary: This Preliminary information communicates an issue with the front HVAC blower speed reducing to a lower speeding when it should be higher. Engineering is working on a fix.

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Date Published: JUN 26, 2023
NHTSA TSB #: 10239177

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