Is your defective GMC Sierra 2500 actually a LEMON?

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GMC TSB #23-NA-056

2023 GMC Sierra 2500

TSB Document:

MC-10234180-0001.pdf

Affected Component: STRUCTURE

Summary: This technical bulletin provides a procedure to correct the condition of Wind Whistle Noise at Highway Speeds.

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Date Published: MAR 31, 2023
NHTSA TSB #: 10234180

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