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Home >> GMC >> 2018 >> Terrain SL >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures >> Diagnostic Information And Procedures >> DTC B124F: Universal Serial Bus (USB) Programming >> Repair Instructions

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Control Module References for device replacement, programming, and setup.

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