Are you experiencing frustrating electrical problems in your GM truck or van? Issues like flickering dashboard lights, power windows or locks that work intermittently, a security system that acts up, or a vehicle that refuses to start can often be traced back to a single component: the Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it fails, it can cause a wide range of confusing and unpredictable symptoms. This replacement BCM is the reliable, straightforward solution to restore your vehicle’s proper function.
From the Diagnostic Bay
We had a 2002 GMC Sierra 2500 in the shop that was driving the owner crazy. The radio would turn on and off by itself, the dome light would stay on, and occasionally the truck just wouldn’t crank. He had already replaced the battery and checked the alternator. After running diagnostics, we found communication errors pointing directly to a failing BCM. Instead of a costly trip to the dealer for a new module and programming fees, we installed one of our pre-programmed units. The truck was back to normal in under an hour, saving the customer significant time and money. These modules are the go-to fix for these exact electrical gremlins.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ Malfunctioning security system or horn honking randomly.
- ✔ Instrument cluster gauges behaving erratically or going dark.
- ✔ “Service Vehicle Soon” or other warning messages appearing on the dash.
- ✔ A no-start or no-crank condition where the engine won’t turn over.
- ✔ Problems with the heating and A/C blower motor controls.
Solving Your 2002 Silverado BCM Issues
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and hassle out of the repair process. When you order, simply provide us with your vehicle’s VIN. Our technicians will then program the BCM with the latest official GM software specific to your truck or van. This ensures perfect compatibility and function right out of the box. You get a fully updated module without needing a trip to the dealership or expensive scan tools for programming. This is the most efficient way to fix your 2002 Silverado BCM and get your truck operating like new again.
This module is a direct replacement for the following part numbers:
15063578, 15081796, 15095334, 19208537, DKAK, DPNU
Installation and Required Procedures
Installation is straightforward for those with basic mechanical skills. The BCM is typically located under the steering column or in the center dash area. However, after installation, some vehicles may require additional steps to ensure all systems are synchronized.
- Airbag System Sync: If your airbag warning light is illuminated after installing the new BCM, a procedure called “Setup SDM Primary Key in BCM” must be performed. This requires a professional-grade diagnostic tool to sync the airbag system with the new BCM and clear the light.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary. This ensures your brake lights and traction control system function correctly.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
2002 Silverado BCM
Is this a guaranteed fix for my electrical problems?
While this is the solution for the symptoms listed, proper vehicle diagnosis is key. Please ensure a qualified mechanic has diagnosed the BCM as the root cause of your issues before ordering.