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GMC TSB #N192222301
2019 GMC Sierra 1500
TSB Document:
Affected Component: EQUIPMENT ADAPTIVE/MOBILITY
- Summary
- N192222301 - Service Update Bulletin. Certain vehicles, equipped with a single speed transfer case (RPO NP0) or 2-speed transfer case (RPO NQH), may have a condition in which the transfer case could leak oil if the vehicle is operated frequently with the transfer case in Auto or 4HI. The oil leak could lead to abnormal clutch operation. Dealers are to replace the front output shaft seal.
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