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GMC TSB #39370
2016 GMC Sierra 1500
TSB Document:
Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION
- Summary
- 39370 ? Service Update Bulletin. On vehicles equipped with an 8-speed automatic transmission, the C-1-3-5-6-7 piston assembly internal to the transmission may be out of specification resulting in potential shift quality and long term durability issues. Dealers are to replace the transmission.
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