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Home >> GMC >> 2020 >> Acadia AT4 >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Keyless Entry System And Remote Functions >> Diagnostic Information and Procedures >> DTC B3121 >> DTC Descriptors

DTC Descriptors

DTC B3121: Keyless Entry Antenna 3

For symptom byte information, refer to Symptom Byte List .

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