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GMC TSB #PIT5715A

2020 GMC Sierra 1500

TSB Document:

MC-10190415-9999.pdf

Affected Component: POWER TRAIN

Summary: This Preliminary Information provides information to the technician about a additional diagnostic tip for a check engine lamp for DTC P3055 and P3056 and the start/Stop being inoperative.Â

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Date Published: MAR 22, 2021
NHTSA TSB #: 10190415

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