Is Your GM Truck or Van Plagued by Electrical Gremlins?
If you’re dealing with bizarre and frustrating electrical issues in your 2003-2007 Silverado, Sierra, Express, or Savana, a failing Body Control Module (BCM) is the most likely culprit. The BCM is the central computer for your vehicle’s body electronics, managing everything from power windows and locks to interior lighting and the security system. When it starts to fail, it can cause a cascade of confusing and unpredictable problems that can be difficult to diagnose.
We had a 2005 Silverado 2500 in the shop that was driving the owner crazy. The dome lights would randomly stay on, draining the battery overnight. Other times, the power door locks would stop responding to the key fob. After checking all the usual suspects like fuses and wiring, we pinpointed the BCM. Swapping it with a correctly programmed unit didn’t just fix the lights and locks; the owner also reported that his radio, which had been acting up, was now working perfectly. It shows how a single faulty module can create multiple, seemingly unrelated issues.
Common Symptoms of a Failing BCM:
- ✔ Power windows, mirrors, or door locks operating intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The anti-theft or security light flashing, preventing the vehicle from starting.
- ✔ Erratic behavior from the radio or instrument cluster gauges.
- ✔ False warnings on the driver information center, such as “Service 4WD”.
- ✔ Inconsistent A/C and heater blower fan operation.
The Plug-and-Play Solution for Your 2003-2007 GM Truck BCM
Don’t let a faulty BCM keep your truck off the road or force you into an expensive dealership visit. This replacement Body Control Module is the reliable, cost-effective solution you need. We take the hassle out of the replacement process by pre-programming the module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This means no extra programming fees or special tools are required for installation. It arrives ready to be installed, getting you back on the road faster.
This module is a direct replacement for a range of part numbers, including: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689.
Important Post-Installation Information
While this BCM is programmed for a straightforward installation, some vehicle systems may require a recalibration procedure after the new module is connected. This is a normal part of the process.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” procedure. This syncs the new BCM with your vehicle’s existing airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure your brake lights and traction control system function correctly.
Please note: Specific procedures can vary. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
Do I need to have this BCM programmed by a dealer?
No. We handle the programming for you before we ship the part. Simply provide us with your vehicle’s VIN during or after checkout, and the module will arrive ready to install, flashed with the latest GM software for your specific vehicle.
What is a BCM and what does it control?
The Body Control Module (BCM) is a computer that acts as the central hub for your vehicle’s body electronics. It manages non-engine related functions like power windows, locks, lights, the security system, wipers, and more.
Where is the BCM located on my truck or van?
On most 2003-2007 Silverado and Sierra pickups, the BCM is located under the steering column. On Express and Savana vans, it is typically found in the center of the dashboard.
What happens if my airbag light comes on after I install this?
This is a possibility and requires a simple synchronization procedure. A repair shop with a professional-grade diagnostic tool will need to perform the “Setup SDM Primary Key in BCM” function to sync the modules and turn off the light.
Is there a core charge for this part?
No, there is no core charge. You can keep your original module without needing to send it back to us.