Is your defective GMC Sierra 3500 actually a LEMON?

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GMC TSB #23-NA-185

2021 GMC Sierra 3500

TSB Document:

MC-10245244-0001.pdf

Affected Component: EQUIPMENT

Summary: This service bulletin helps diagnose/reduce possible CCND issues on Transfer Cases - Service 4WD on DIC, Intermittent Failures, Noise Concerns, Driveline/Steering Vibration/Shudder, Intermittent DTCs/MIL Illuminated, Engagement/Disengagement/Ratcheting Concerns.

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Date Published: OCT 24, 2023
NHTSA TSB #: 10245244

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