Restore Command of Your Vehicle’s Electronics
Are you battling electrical gremlins in your GM truck or van? Flickering dash lights, malfunctioning power windows, a security system with a mind of its own, or an intermittent no-start condition can all point to one culprit: a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen how a faulty BCM can turn a reliable workhorse into a source of daily frustration. This module is the central nervous system for your vehicle’s comfort and convenience features, and when it fails, chaos ensues.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the biggest headache out of the repair process by pre-programming this GM Body Control Module with the latest GM software, matched precisely to your vehicle’s VIN. This means you can skip the expensive trip to the dealership for programming. You get a reliable, fully updated component that’s ready to restore order to your vehicle’s electronics right out of the box.
A Technician’s Notebook: The Phantom No-Start
A customer brought in his 2006 Silverado 2500 with a perplexing issue. It would randomly refuse to start, but only sometimes. The battery was new, the starter checked out, but the security light would occasionally flash on the dash. After chasing wires and checking grounds, we pulled the BCM. Sure enough, we found the classic signs of water intrusion on the circuit board—a common failure point from a leaky windshield seal on these trucks. A new, pre-programmed GM Body Control Module fixed the no-start, the security light, and even a quirky dome light issue the owner had forgotten to mention. It’s amazing how many problems originate from this single component.
Is Your GM Truck or Van Showing These Signs?
- ✔ Erratic or non-functional interior/exterior lights
- ✔ Power windows, locks, or mirrors working intermittently or not at all
- ✔ The security or anti-theft system preventing the vehicle from starting
- ✔ Instrument cluster gauges behaving strangely or going dead
- ✔ Horn sounding randomly or not working when pressed
- ✔ Unexplained battery drain when the vehicle is off
A Straightforward Guide to BCM Installation
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- Locate the BCM: On most Silverado and Sierra pickups, the BCM is located under the driver’s side of the dashboard, near the steering column. On Express and Savana vans, it’s typically found behind the center dash panel.
- Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the module. A simple set of trim removal tools will prevent scratches and broken clips.
- Disconnect and Unbolt: Unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Bolt your new, pre-programmed BCM into place. Reconnect all electrical connectors, ensuring they click securely into place.
- Perform Post-Installation Procedures: Reconnect the battery. As noted below, you will need to perform the ‘Setup SDM Primary Key in BCM’ procedure with a capable scan tool to clear the airbag light. Some vehicles may also require a brake pedal position sensor relearn.
Important Post-Installation Requirements
To ensure full functionality and safety after installing your new GM Body Control Module, a few final steps are required. These procedures sync the new module with your vehicle’s other systems.
- Airbag System Reset: The airbag warning light will be illuminated after replacement. You must perform the ‘Setup SDM Primary Key in BCM’ procedure using a professional-grade diagnostic tool. This is a critical safety step to ensure the airbag system is operational.
- Brake Pedal Recalibration: Some vehicles require a brake pedal position sensor relearn. This ensures the brake lights and stability control systems function correctly.
- Consult a Professional: If you are not equipped with the proper diagnostic tools or are unsure about these procedures, we strongly recommend seeking assistance from a qualified mechanic to complete the installation.
Verified Fitment For These GM Models
This module is a direct replacement for part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. It fits a wide range of vehicles, including:
- Chevrolet Silverado 1500/2500/3500 (2003-2007 Classic) – Specific options apply, excluding Crew Cab models for most years.
- GMC Sierra 1500/2500/3500 (2003-2007 Classic) – Specific options apply, excluding Crew Cab models for most years.
- Chevrolet Express 1500/2500/3500 Van (2003-2007) – Specific options apply.
- GMC Savana 1500/2500/3500 Van (2003-2007) – Specific options apply.
- Chevrolet SSR (2003-2006)
Please use the fitment chart to confirm compatibility with your exact year, model, and options. It is crucial to match the location (under steering column vs. center dash) and other specific vehicle options.
Frequently Asked Questions
What is the main benefit of this BCM being pre-programmed?
The primary benefit is saving you time and money. A new BCM from a dealer would require you to have the vehicle towed there for expensive programming. Our module arrives ready to install, already flashed with the latest GM software for your specific VIN.
How do I provide my VIN for programming?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship the module until we have this information to program it correctly.
Is this a difficult part for a DIYer to replace?
The physical replacement is straightforward for someone with basic mechanical skills. It involves removing some dash panels and unplugging connectors. The most critical part is having access to a capable scan tool for the post-installation procedures (airbag and brake sensor relearns).
What happens if I don’t perform the post-installation procedures?
Your vehicle may run, but you will have an active airbag warning light on your dash, meaning the supplemental restraint system is disabled. The brake lights or stability control may also not function as intended, which are significant safety risks.
Will this part fix my specific electrical issue?
This BCM corrects a very wide range of common electrical faults. If your vehicle is exhibiting several of the symptoms listed above, there is a very high probability that a failing BCM is the cause. Proper diagnosis is always recommended.
Does this BCM replace other part numbers?
Yes, this module is a direct replacement for several part numbers, including 15167329, 15194169, 15136224, 15116065, and more. Check the list in our description to confirm it matches your original part.