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GMC TSB #18176
2018 GMC Terrain
TSB Document:
Affected Component: ELECTRICAL SYSTEM
- Summary
- 18176 - Customer Satisfaction - Certain vehicles, equipped with the 1.6L diesel engine (RPO LH7), may have a condition where if the engine control module software experiences an internal integrity fault and the transmission may not shift as designed. Reprogram the engine control module.
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