GMC TSB #PIP5664B

2020 GMC Sierra 2500

TSB Document:

Affected Component: ELECTRICAL SYSTEM

Summary
This Preliminary information communicates to the dealer technician to check for any new ECM calibration updates for DTCs P129F P16F3 P20EE P20FF P226D P249D P249E P11CC and / or P11D5 set.

This Preliminary information communicates to the dealer technician to check for any new ECM calibration updates for DTCs P129F P16F3 P20EE P20FF P226D P249D P249E P11CC and / or P11D5 set.

Date Published
SEP 27, 2019
NHTSA TSB #
10165913
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