Is your defective GMC Sierra 2500 actually a LEMON?

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GMC TSB #19-NA-237

2024 GMC Sierra 2500

TSB Document:

MC-10235397-0001.pdf

Affected Component: FUEL SYSTEM, DIESEL

Summary: This service bulletin explains how to identify possible DEF system contamination.

Click a tab for more information.

Date Published: APR 05, 2023
NHTSA TSB #: 10235397

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