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GMC TSB #PIP5281
2015 GMC Sierra 2500
TSB Document:
Affected Component: ELECTRICAL SYSTEM:SOFTWARE
- Summary
- This Preliminary Information communication provides information to the technician about vehicles that may have a repeat harsh shift, slip or flare concern. Technician should insure the Transmission Control Module has the latest calibration installed. Technician will confirm the transmission service fast learns and drive learn procedures listed in the latest version of bulletin 14-07-30-001. If the concern is still present technician will need to contact General Motors Technical Assistance Center for further assistance.
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