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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1407 (Theft Deterrent System - Immobilizer) >> Description and Operation >> Vehicle Theft Deterrent (VTD) Description and Operation >> SECURITY Indicator Operation >> SECURITY Indicator Illuminated and Engine Does Not Start

SECURITY Indicator Illuminated and Engine Does Not Start

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If the theft deterrent control module was unable to measure the ignition key transponder value or the PCM has detected a problem with the theft deterrent system. The VTD system is in Learn Mode. Refer to Programming Theft Deterrent System Components .