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Home >> GMC >> 2021 >> Terrain SLT, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Data Communications - Diagnostic Information And Procedures (2 Of 2) >> Diagnostic Information and Procedures >> DTC U18DA >> Repair Instructions

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for device replacement, programming and setup