GMC TSB #PIP5711C

2020 GMC Sierra 2500

TSB Document:

Affected Component: BACK OVER PREVENTION

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
FEB 06, 2023
NHTSA TSB #
10232791
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