GMC TSB #16-NA-130

2020 GMC Sierra 1500

TSB Document:

Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY

Summary
This service bulletin provides information for after installation of a replacement upper valve body, the transmission may have no Reverse and no 2nd gear.

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Date Published
MAR 02, 2023
NHTSA TSB #
10232711
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