Is your defective GMC Sierra 2500 actually a LEMON?

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GMC TSB #20-NA-082

2021 GMC Sierra 2500

TSB Document:

MC-10222782-0001.pdf

Affected Component: FUEL SYSTEM, DIESEL

Summary: This informational bulletin explains why more DEF is being used in diesel engines due to new emission standards.

Click a tab for more information.

Date Published: SEP 12, 2022
NHTSA TSB #: 10222782

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