GMC TSB #N192282970-01

2020 GMC Sierra 1500

TSB Document:

Affected Component: ELECTRICAL SYSTEM

Summary
Service Update - Certain vehicles may have a condition where the check engine or the reduced power mode light may come on during start-up or while driving. Reprogram the engine control module and the reductant control module.

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Date Published
FEB 13, 2020
NHTSA TSB #
10172658
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