Is your defective GMC Sierra 3500 actually a LEMON?

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GMC TSB #21-NA-238

2024 GMC Sierra 3500

TSB Document:

MC-10250250-0001.pdf

Affected Component: EQUIPMENT

Summary: This technical bulletin provides a procedure to inspect the front pump of the transmission for a possible leak.

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Date Published: JAN 22, 2024
NHTSA TSB #: 10250250

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