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GMC TSB #18317
2018 GMC Savana
TSB Document:
Affected Component: ELECTRICAL SYSTEM
- Summary
- 18317 - Customer Satisfaction Program. Certain vehicles, equipped with RPOs 9C2, 9B9 or 9D7 may have a condition in which the programmed limiters of 65, 70 or 75 mph respectively, are not limiting the vehicle speed. The calibration files that control these limitations have values that allow higher speeds than intended. Dealers are to reprogram engine control module with new software.
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