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GMC TSB #PI1538
2016 GMC Savana
TSB Document:
Affected Component: ELECTRICAL SYSTEM
- Summary
- This preliminary informational bulletin provides repair information on Engine Control Module (ECM) reprogramming to correct a customer concern of experiencing a slight hesitation and/or sag. Upon further inspection, DTCs P0101, P0106, P0121, P1101 may be set.
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