Is your GM truck or van acting possessed? Flickering lights, malfunctioning power accessories, and strange warning messages are common signs of a failing Body Control Module (BCM). The BCM is the central computer for your vehicle’s body electronics, and when it fails, it can cause a wide range of frustrating and seemingly unrelated problems. This replacement GM Body Control Module is the definitive solution to restore your vehicle’s functionality and peace of mind.
This isn’t just a part in a box. We provide a comprehensive service by pre-programming this module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This critical step ensures compatibility and integrates the latest software updates from GM, saving you a costly trip to the dealership for programming. Simply provide your VIN after purchase, and we’ll handle the rest, delivering a module that’s ready for installation.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior dome lights or exterior lights staying on or not working at all.
- ✔ The security system acting up, preventing the vehicle from starting (Passlock issues).
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Instrument cluster gauges behaving erratically or displaying incorrect information.
- ✔ ‘Service Vehicle Soon’ or other warning messages on the dash.
- ✔ No communication with the BCM when using a diagnostic scan tool.
Why Choose Our Pre-Programmed GM Body Control Module?
Getting your vehicle back on the road shouldn’t be complicated. Our process is designed to be as simple as possible. By programming the module for you, we eliminate the most difficult part of the repair. This module is a direct-fit replacement for a wide range of popular GM trucks and SUVs, including the Chevy Astro, GMC Safari, Silverado, Sierra, Tahoe, Yukon, and more. Please verify your original part number against our list to ensure compatibility. The compatible part numbers are: 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU.
Post-Installation Information
While this module is sent ready for installation, some vehicles may require minor post-installation procedures for full system integration. Please be aware of the following:
- Airbag System Sync: If the airbag warning light is illuminated after you install the new BCM, a ‘Setup SDM Primary Key in BCM’ procedure is necessary. This syncs the new BCM with the airbag system and must be performed with a professional-grade diagnostic tool.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be needed to ensure your brake lights and traction control system function correctly.
Disclaimer: Specific procedures can vary by vehicle model and year. We always recommend consulting a factory service manual or a qualified automotive technician for guidance.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that manages and controls electronic accessories like power windows, locks, lights, the security system, and the instrument cluster.
Is this BCM plug-and-play?
Mostly, yes. We pre-program it to your VIN so it’s ready to be installed without needing a trip to the dealer for initial programming. However, as noted, some vehicles may require minor relearn procedures for the airbag or brake systems after installation.
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions on how to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive this information.
What happens if my airbag light is on after installation?
This is a known possibility. It means the new BCM needs to be electronically ‘introduced’ to your vehicle’s airbag system. A technician with a capable scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve it.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module.