GMC TSB #20-NA-050

2015 GMC Sierra 1500

TSB Document:

Affected Component: POWER TRAIN

Summary
This technical bulletin provides a procedure to clear the codes and test the Tcase if found that the customer has tried to shift the t-case from 4lo to Hi gears while driving.

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Date Published
APR 28, 2022
NHTSA TSB #
10211070
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