GMC TSB #PIP5711B

2020 GMC Sierra 2500

TSB Document:

Affected Component: ELECTRICAL SYSTEM

Summary
This Preliminary information communicates to the dealer technicians a warm engine knock noise has no short or long term effects on the engine. Do not attempt repairs for this noise. 

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Date Published
JAN 24, 2022
NHTSA TSB #
10208052
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