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.
2001 Buick Century CustomFACTORY OEM SERVICE PROCEDURE
Body Control Module
- Turn ignition switch to OFF position. Connect scan tool to Data Link Connector (DLC). DLC is located below left side of instrument panel, to right of steering column. See Figure . Turn ignition switch to RUN position. Select DIAGNOSTICS and input all required vehicle data when prompted by scan tool. Select BODY CONTROL MODULE. Select SPECIAL FUNCTIONS. Select NEW VIN and input all required data. Exit back to SPECIAL FUNCTIONS and select BCM REPROGRAMMING.
- When scan tool displays, DO YOU WANT TO SETUP A BODY CONTROL MODULE?, select SETUP BCM. Scan tool will display NOW SETTING UP THE NEW BODY CONTROL MODULE. When Body Control Module (BCM) has been setup successfully, scan tool will display BODY CONTROL MODULE SETUP IS COMPLETE. When BCM setup procedure and VIN have been entered, go to THEFT DETERRENT RELEARN .
Factory Service Tools
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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.
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