GMC TSB #21-NA-199

2020 GMC Sierra 3500

TSB Document:

Affected Component: POWER TRAIN

Summary
This informational bulletin advises the technician to replace the TBV if the transmission has any type of repair even if no problem was found, to replace the tbv.

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Date Published
JUL 26, 2022
NHTSA TSB #
10217111
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