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Home › Buick › 2021 › Envision Preferred, AWD › Repair and Diagnosis › Body & Frame › Ignition Switch/Steering Lock › Immobilizer System › Diagnostic Information and Procedures › DTC B1977 › DTC Descriptor

DTC Descriptor

DTC B1977

Telematics Requested Immobilization

For symptom byte information, refer to Symptom Byte List .

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