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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 262 (Immobilizer System) >> Diagnostic Information and Procedures >> DTC B3031: Security Controller In Learn Mode Malfunction >> Action Taken When the DTC Sets

Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

The security indicator will illuminate. The driver information center will display a message.

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