Is your defective GMC Sierra 2500 actually a LEMON?

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GMC TSB #21-NA-120

2023 GMC Sierra 2500

TSB Document:

MC-10243980-0001.pdf

Affected Component: EQUIPMENT

Summary: This service bulletin provides a Diagnostic Tip for Noise, Vibration, and/or Harshness Issues/Clunk Noise Heard During Coast Down Event after the transfer case was removed from the transmission and reinstalled during a recent repair.

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Date Published: SEP 19, 2023
NHTSA TSB #: 10243980

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