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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Theft Deterrent System >> Description and Operation >> Vehicle Theft Deterrent (VTD) Description and Operation >> Changing the Passlock™ Components

Changing the Passlock™ Components

The following components contain codes or passwords, or must learn codes or passwords for the Passlock™ system to allow the vehicle to start:

If any of these parts are replaced, a learn procedure must be performed. Refer to PROGRAMMING THEFT DETERRENT SYSTEM COMPONENTS . If parts are replaced and a learn procedure is not performed, the engine will crank and will not run or will start and stall immediately.