GMC TSB #PIE0433A
2017 GMC Terrain
Affected Component: ELECTRICAL SYSTEM: SOFTWARE
- This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Engineering Information ? Malfunction Indicator Lamp (MIL) On DTCs P0171 Fuel Trim System Lean Bank 1 and/or P0174 Fuel Trim System Lean Bank 2.