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GMC Truck
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2002
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C 3500 HD Truck 2WD V8-8.1L VIN G
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Repair and Diagnosis
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Antitheft and Alarm Systems
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Keyless Entry
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Description and Operation
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System Operation
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Lock All Doors Second Operation
Lock All Doors Second Operation
Momentarily press the LOCK button a second time within
5 seconds
of the first press in order to chirp the vehicle horns, if enabled.