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Home › Cadillac › 2017 › CT6 Plug-In › Repair and Diagnosis › Body & Frame › Ignition Switch/Steering Lock › Immobilizer System › Diagnostic Information and Procedures › DTC P0633: Immobilizer Key Not Programmed › Conditions for Setting the DTC

Conditions for Setting the DTC

DTC P0633 will set any time the ECM enters learn mode.

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