Are you chasing down bizarre electrical problems in your GM truck or van? Flickering lights, malfunctioning power windows, a security system that acts up, or random warning messages on your dash are all classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a wide range of frustrating and seemingly unrelated issues. Stop the guesswork and restore proper function with our pre-programmed replacement BCM.
This is a direct-fit replacement for a variety of 2003-2007 GM trucks and vans, including the Silverado, Sierra, Express, and Savana. We take the hassle out of the repair process. Simply provide your vehicle’s VIN during checkout, and our technicians will program the module with the latest GM software specific to your vehicle’s configuration. This means no expensive trips to the dealership for programming—it arrives at your door ready for installation.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security or anti-theft system preventing the vehicle from starting.
- ✔ Inaccurate or false warning lights on the instrument cluster (e.g., ‘Service 4WD’).
- ✔ The radio or climate controls behaving unpredictably.
- ✔ Horn not working or sounding randomly.
From the Diagnostic Bay
We had a 2005 Silverado 2500 in the shop that was driving the owner crazy. The dome lights would flicker, the radio would shut off randomly, and the ‘Service 4WD’ light was on, even though the 4×4 system seemed to work fine. The owner had already replaced the battery and checked all the fuses. After connecting our diagnostic tool, we saw multiple communication errors pointing towards the BCM. Instead of a complex wiring repair, we installed a VIN-programmed BCM. In under an hour, all the strange electrical gremlins were gone, and the truck was back to normal. It’s amazing how many issues a single faulty module can cause.
Why Choose Our Pre-Programmed GM Truck & Van BCM?
Replacing a BCM used to be a job reserved for the dealership due to complex programming requirements. Our solution simplifies the process for both DIY mechanics and professional shops. By programming the unit to your VIN before shipping, we eliminate the most difficult step. This replacement GM Truck & Van BCM is built to meet or exceed original equipment specifications, ensuring reliable performance and a long service life. You get a dependable part that restores your vehicle’s functionality without the dealership price tag.
Installation & Post-Install Notes
Installation is straightforward for those with basic mechanical skills. The BCM is typically located under the steering column in trucks or in the center dash area in vans. After installing the new module, some vehicles may require additional procedures for full system integration.
- 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 the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure correct brake light operation and traction control function.
Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
This module is a direct replacement for the following part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, 10367689.
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 various electronic accessories, such as power windows, lights, door locks, the security system, and climate controls.
How do I know if my BCM is the problem?
Common signs of a failing BCM include multiple, unrelated electrical issues happening at once, such as flickering lights, non-working power accessories, and false warning messages. A professional diagnosis is the best way to confirm the BCM is at fault.
Is this part difficult to install?
For someone with basic automotive repair experience, the physical installation is typically not difficult. However, please be aware that post-installation procedures like an airbag system sync or brake pedal position relearn may be required, which necessitate a professional-grade scan tool.
What information do you need from me?
We require your 17-digit Vehicle Identification Number (VIN) to program the module specifically for your vehicle’s options and software. Please provide it during or after checkout.
Do I need to send my old part back?
No, there is no core charge for this part. You can keep your original module.
What if my airbag light is on after I install the BCM?
This is a known possibility. The new BCM needs to be electronically introduced to the airbag system. This requires a ‘Setup SDM Primary Key in BCM’ procedure using a compatible high-end diagnostic tool to turn off the light.