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GMC Truck
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1999
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C 2500 Truck 2WD V8-5.7L VIN R
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Repair and Diagnosis
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Accessories and Optional Equipment
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Antitheft and Alarm Systems
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Description and Operation
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Vehicle Theft Deterrent (VTD)
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General Description
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SECURITY Indicator
SECURITY Indicator
The SECURITY indicator is on the instrument cluster. If the SECURITY indicator flashes or if the SECURITY indicator lights continuously during the vehicle operation, refer to the system diagnosis.