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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Cellular, Entertainment, And Navigation >> Diagnostic Information and Procedures >> Radio Displays LOC, LOCKED, or CODE >> Circuit/System Testing

Circuit/System Testing

Ignition ON, with a scan tool, reprogram the radio.

If the radio still displays LOCKED after performing the reprogramming procedure, replace the radio.

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