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Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> Radio Displays LOC, LOCKED, or CODE >> Circuit/System Testing
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Circuit/System Testing

  1. Program the radio. Refer to Radio Programming and Setup .
    • If the radio still locked, replace the radio.
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