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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISGENERAL INFORMATIONCOMPUTER RELEARN PROCEDURESGENERAL MOTORS (TRUCKS & VANS)CUTAWAY, EXPRESS, RV CUTAWAY & SAVANAPASSWORD LEARN PROCEDURE FOR ANTI-THEFT SYSTEM (4.3L, 5.0L & 5.7L)
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M

Password Learn Procedure For Anti-Theft System (4.3L, 5.0L & 5.7L)

2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Password Learn Procedure For Anti-Theft System (4.3L, 5.0L & 5.7L)
  1. Password learn procedure must be performed if VCM, Passlock® module or sensor is replaced. A password is communicated between VCM and Passlock® module to provide engine operation. If VCM is replaced, VCM must learn password from Passlock® module.
  2. Start engine. After engine stalls, leave ignition switch turned to ON position for 10 minutes. The SECURITY indicator light will stay on for 10 minutes and then turn off. The SECURITY indicator light is located on right corner of instrument panel.
    NOTE: Ensure battery is fully charged before proceeding. Ensure steps are followed in correct order or procedure may need to be repeated.
  3. After SECURITY indicator light turns off, turn ignition off for 30 seconds. Attempt to start engine. After engine stalls, leave ignition switch turned to ON position for 10 minutes. SECURITY indicator light will stay on for 10 minutes and then turn off. After SECURITY indicator light turns off, turn ignition off for 30 seconds.
  4. Attempt to start engine. After engine stalls, leave ignition switch turned to ON position for 10 minutes. SECURITY indicator light will stay on for 10 minutes and then turn off.
  5. Turn ignition switch to OFF position for 30 seconds. Turn ignition switch to ON position and wait 30 seconds. Attempt to start engine. If engine starts, password learn procedure is complete. If engine does not start, ensure procedure was properly followed. If procedure was properly followed, check for any DTCs. If any DTCs exist, perform test procedures for specified DTC and repair as necessary. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.