Are you battling frustrating electrical problems in your GM truck or van? Issues like flickering lights, malfunctioning power windows and locks, or a persistent security light are often signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a wide range of confusing symptoms. This replacement BCM, part number 15136876, is the definitive solution to restore your vehicle’s functionality and peace of mind.
Unlike a standard replacement part from a dealership or local parts store, this BCM arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). This critical step ensures seamless integration with your truck’s existing systems, eliminating the need for an expensive trip to the dealer for programming. Simply provide us with your VIN after purchase, and our technicians will flash the module with the latest GM software updates before shipping. This is the most efficient way to get your vehicle back on the road.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, mirrors, and door locks.
- ✔ Interior or exterior lights (headlights, taillights, dome light) not working correctly.
- ✔ The anti-theft or security system light stays on, preventing the vehicle from starting.
- ✔ Horn works intermittently or goes off randomly.
- ✔ Instrument cluster gauges behaving erratically or displaying false warnings.
- ✔ Communication errors with other vehicle modules when read by a diagnostic scanner.
Why Choose Our Programmed GM BCM?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. Our expert technicians use your VIN to load the correct factory software and calibrations onto the module. This ensures that all the specific options your vehicle was built with—like keyless entry, power seats, or specific lighting packages—are recognized and function correctly. By getting a Programmed GM BCM from us, you are bypassing the most complicated and costly part of the repair process.
Installation & Required Procedures
Physical installation is typically straightforward, as the BCM is located either under the steering column (for trucks) or in the center dash area (for vans). After installing the new module, some vehicles may require additional relearn procedures. Please be aware of the following:
- 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 recalibration may be needed to ensure proper brake light and traction control operation.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Guaranteed Fitment for Part Number 15136876
This module is a direct replacement for the following part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 10367689. It is compatible with a wide range of GM vehicles, including various configurations of the Silverado, Sierra, Express, Savana, and SSR from 2003-2007. Please verify your part number and check the detailed fitment list to ensure compatibility.
Frequently Asked Questions
What exactly does the Body Control Module do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related electronic functions. This includes power windows, power locks, the security system, interior and exterior lighting, wipers, and the horn.
How does the VIN programming work?
After you place your order, you will need to provide us with your 17-digit VIN. Our technicians use this number to access the specific GM software for your vehicle’s exact build. We then load this software onto the BCM, so it’s ready for installation when you receive it.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module.
Will this fix the ‘Security’ light on my dash?
In most cases, yes. A faulty BCM is a very common cause for a persistent security light and no-start conditions in these GM vehicles. Our VIN-programmed BCM is designed to resolve this issue.
What if the airbag light comes on after I install it?
This can happen occasionally. It means the new BCM needs to be electronically introduced to the airbag module (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be done by a repair shop with a professional-grade diagnostic tool.
Is this a difficult part to install myself?
The physical replacement is generally simple for someone with basic mechanical skills, involving unplugging connectors and removing a few bolts. The BCM is usually found under the dash. The key is that our pre-programming service eliminates the most difficult step, which is the software setup.