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.
BCM Programming/Regular Production Option Codes
Body Control Module (BCM) must be programmed with proper Regular Production Option (RPO) configurations. If BCM is not properly programmed with correct RPO codes, the BCM will not be able to control the features properly. Before programming BCM ensure battery is fully charged, ignition switch is in ON position and the Data Link Connector (DLC) is accessible. Using scan tool, select SPECIAL FUNCTIONS and NEW BCM SETUP. Follow instructions on scan tool to program BCM. If BCM fails to accept programming or RPO codes, check connections at BCM and ensure scan tool has latest software updates. When BCM, Powertrain Control Module (PCM) or Passlock(tm) sensor are replaced, Passlock(tm) sensor must also be reprogrammed. See PASSWORD LEARN PROCEDURE .
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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.