Is your GM truck or van suffering from bizarre electrical problems?
If you’re dealing with flickering lights, malfunctioning power windows or locks, a security system that acts up, or even a no-start condition, the root cause is often a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it fails, it can create a host of frustrating and difficult-to-diagnose issues. Stop chasing electrical gremlins and get a reliable, permanent fix.
This is a direct-fit replacement BCM for a wide range of GM trucks and vans. The best part? It arrives at your door pre-programmed to your specific vehicle. Simply provide us with your Vehicle Identification Number (VIN) after purchase, and our technicians will flash the module with the latest official GM software. This eliminates the need for an expensive trip to the dealership for programming, saving you time and money.
From the Diagnostic Bay
We had a 2005 Silverado 2500 in the shop that was driving the owner crazy. The dome lights would stay on, the radio presets would randomly wipe, and the driver’s side power window worked only when it wanted to. The owner had already replaced the battery and checked all the fuses. After hooking up our scanner, we saw multiple communication loss codes with the BCM. Instead of hours of complex wiring diagnostics, we recommended this pre-programmed GM Truck BCM Replacement. After a 30-minute install, all the strange electrical issues were gone. It was a simple, effective solution that got the truck back to perfect working order.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights
- ✔ Power windows, mirrors, or door locks not working correctly
- ✔ Vehicle security system faults or alarm sounding randomly
- ✔ Horn not working or honking unexpectedly
- ✔ Instrument cluster gauges behaving erratically
- ✔ Intermittent no-start or no-crank conditions
- ✔ “Service Electrical System” or similar warnings on the dash
Installation and Post-Install Information
Installation is straightforward as this module is programmed for your vehicle. However, due to the complexity of modern vehicle systems, some post-installation procedures may be required. Please be aware of the following:
- 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 scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure your brake lights and traction control system function as intended.
This is the definitive GM Truck BCM Replacement for your vehicle.
This module is a direct replacement for the following part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, 10367689. Please verify your part number before ordering.
There is no core charge for this part. You can keep your original module.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that controls and monitors a wide variety of electronic accessories, such as power windows, lights, security systems, door locks, and wipers.
Why do I need to provide my VIN?
Your vehicle’s VIN allows us to program the BCM with the correct software and settings for your specific model, year, and options. This ensures compatibility and proper function without needing a trip to the dealer for programming.
Is this part difficult to install?
The physical replacement is typically simple, involving unplugging the old module and plugging in the new one. It’s often located under the steering column or in the center dash. However, as noted, some vehicles may require a post-install relearn procedure with a scan tool for systems like the airbags.
What happens if my airbag light comes on after installation?
This indicates the new BCM needs to be electronically synced with your vehicle’s airbag system (SDM). A qualified technician with a professional diagnostic tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Will this fix all my electrical problems?
This module will correct issues directly caused by a faulty BCM. While the BCM is a very common point of failure for the symptoms listed, you should always ensure your vehicle’s battery, alternator, and fuses are in good condition first.
Is there a core charge for my old part?
No, there is no core charge. You can keep your original BCM.