Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2000CAB & CHASSIS C2500, 6.5 F, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 54 (BODY CONTROL MODULES)PROGRAMMINGPASSLOCK(TM) SYSTEM30 MINUTE LEARN PROCEDURE
2000 Chevrolet Cab & Chassis C2500, 6.5 F, Automatic
30 Minute Learn Procedure
2000 Chevrolet Cab & Chassis C2500, 6.5 F, AutomaticSECTION 30 Minute Learn Procedure
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2002 GMC Savana, 2002 Chevrolet Chevy Express, 2001 GMC Savana Special, 2001 GMC Savana Camper Special, and 2001 GMC Savana. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition switch to RUN position.
- Attempt to start engine, then release key to RUN position, vehicle will not start.
- Observe SECURITY indicator, after approximately 10 minutes, indicator will turn OFF.
- Turn ignition switch to OFF position, and wait 5 seconds.
- Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes. Vehicle is now ready to relearn Passlock(tm) sensor data code and/or passwords on the next ignition switch transition from OFF to CRANK position.
- Start engine. Vehicle has now learned the Passlock(tm) sensor data code and/or password.
- Using scan tool, clear any DTCs if needed. History DTCs will self clear after 100 ignition cycles.
NOTE:
Vehicle learns Passlock(tm) sensor data code and/or password on the next ignition switch transition from OFF to CRANK position. Ignition must be turned OFF before attempting to start the vehicle.
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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.