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Home >> Chevrolet >> 2021 >> Camaro LS, Automatic Trans >> Repair and Diagnosis >> Body & Frame >> Ignition Switch/Steering Lock >> Immobilizer System >> Diagnostic Information and Procedures >> DTC B1021 >> DTC Descriptor
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

DTC Descriptor

DTC B1021 F1

SIM Card Malfunction

DTC B1021 F2

SIM Card Malfunction

DTC B1021 F3

SIM Card Not Programmed

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