Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures - DTC & Symptoms >> Diagnostic Information and Procedures >> DTC B1025, B1135, B1145, B1155: Audio Output (U65) >> Conditions for Clearing the DTC