Restore Your Truck’s Brain: The Pre-Programmed BCM Solution
Are you chasing electrical gremlins in your GM truck or van? Flickering lights, power windows with a mind of their own, a security light that won’t turn off, or even a frustrating no-start condition? As a technician with over two decades of experience, I’ve seen these exact issues hundreds of times. More often than not, the culprit is 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 cascade of confusing and annoying problems.
Don’t waste time and money at the dealership with diagnostic fees and expensive programming charges. We offer a direct, reliable solution: a genuine quality GM Body Control Module, part number 15167329, that arrives at your door pre-programmed to your vehicle’s specific VIN. We flash it with the latest official GM software updates, ensuring perfect communication with your vehicle’s other modules right out of the box. This is the smart, efficient way to get your truck back to 100% functionality.
A Technician’s Notebook
Just last month, a 2005 Silverado 2500 was towed into the shop. The owner was at his wit’s end. The dome lights would stay on, the radio would randomly shut off, and sometimes the truck just refused to crank. He’d already replaced the battery and checked the alternator. After hooking up the scan tool, I noticed a slew of communication error codes pointing towards the BCM. Instead of a costly dealer replacement, we ordered one of these VIN-programmed modules. The installation took less than an hour, and after performing the necessary security and brake system relearns, the truck’s electrical system was stable and reliable again. The customer drove away with a fixed truck for a fraction of the dealership’s quote.
Is Your GM Truck or Van Showing These Symptoms?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, this module is likely the solution you need:
- ✔ Erratic or non-functional power windows, locks, or mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ The security or anti-theft system light is on, preventing the engine from starting.
- ✔ Inaccurate or dead gauges on the instrument cluster.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Intermittent no-crank, no-start conditions.
- ✔ Communication error codes (U-codes) stored in the system.
Your Step-by-Step BCM Installation Guide
Replacing your GM Body Control Module is a manageable job for a confident DIYer. While the exact location can vary slightly between a truck and a van, the process is similar.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to allow the systems to fully power down.
- Locate the BCM: On Silverado and Sierra pickups, the BCM is typically located under the driver’s side of the dashboard, near the steering column. On Express and Savana vans, it’s usually behind the center dash panel.
- Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the module. These are often held by clips or a few screws.
- Disconnect and Remove: The BCM has several large multi-pin electrical connectors. Carefully press the release tabs on each connector and pull them straight out. Once all connectors are disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Seat the new, pre-programmed BCM into the mounting bracket and securely plug in all the electrical connectors. You should hear a click as they lock into place.
- Perform Post-Installation Procedures: Reconnect the battery. You will need to perform a security relearn procedure (often called a Passlock relearn) to allow the vehicle to start. This typically involves turning the key to ‘ON’ for 10-15 minutes, then ‘OFF’, and repeating two more times.
- Final System Checks: As noted below, you must perform the ‘Setup SDM Primary Key in BCM’ procedure with a high-end scan tool to clear the airbag light. Some vehicles may also require a Brake Pedal Position Sensor calibration. Test all functions—windows, locks, lights, etc.—to confirm the repair.
Important Post-Installation Requirements
After installing your new BCM, a few critical steps are required to ensure full functionality and safety. These procedures sync the new module with your vehicle’s other systems.
- Airbag System Reset: To clear the airbag warning light, you must use a professional-grade diagnostic tool to perform the ‘Setup SDM Primary Key in BCM’ procedure. This is a non-negotiable safety step.
- Brake Pedal Recalibration: On some models, the Brake Pedal Position (BPP) sensor must be recalibrated. This ensures your brake lights and traction control system function correctly.
- Security Relearn: Your vehicle’s anti-theft system will need to be relearned to the new BCM before the engine will start. This procedure can typically be done without special tools.
Note: If you are not comfortable performing these procedures, we strongly recommend seeking assistance from a qualified professional mechanic.
Verified Fitment for Your GM Vehicle
This module is a direct replacement for part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. It is guaranteed to fit the following models, provided the options match your vehicle. Please verify your part number or contact us with your VIN before ordering.
EXPRESS 2500 VAN 03-07
EXPRESS 3500 VAN 03-07
SAVANA 1500 VAN 03-07
SAVANA 2500 VAN 03-07
SAVANA 3500 VAN 03-07
SIERRA 1500 PICKUP 03-07 (Classic Style for ’07)
SIERRA 2500 PICKUP 03-07 (Classic Style for ’07)
SIERRA 3500 PICKUP 03-07 (Classic Style for ’07)
SILVERADO 1500 PICKUP 03-07 (Classic Style for ’07)
SILVERADO 2500 PICKUP 03-07 (Classic Style for ’07)
SILVERADO 3500 PICKUP 03-07 (Classic Style for ’07)
SSR 03-06
Note: Fitment may have specific exceptions like ‘exc. Crew Cab’ or transmission type. Providing your VIN ensures you receive the correctly programmed part for your exact configuration.
Frequently Asked Questions about this GM Body Control Module
Do I need to do any programming myself?
No. We handle all the programming for you before shipment. Simply provide us with your vehicle’s 17-digit VIN during or after checkout, and we will flash the module with the latest GM software specific to your vehicle’s options. This saves you a trip to the dealer.
What is a VIN and where do I find it?
The VIN is your vehicle’s unique 17-digit identification number. You can find it on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Will this fix my ‘Service 4WD’ message?
While a BCM can be involved in various electrical systems, the ‘Service 4WD’ message is most often caused by a faulty Transfer Case Control Module (TCCM) or the selector switch in the dash. It is less commonly a BCM issue. We recommend proper diagnostics to confirm the faulty part.
Is this a difficult part to install for a DIYer?
For someone with basic mechanical skills and tools, the physical replacement is straightforward. It’s typically located under the dash and involves removing a few trim panels and swapping connectors. The most critical part is performing the post-installation relearn and reset procedures correctly.
What happens if I don’t reset the airbag light or recalibrate the brake sensor?
Failure to perform the ‘Setup SDM Primary Key’ procedure will result in the airbag warning light staying on, and the supplemental restraint system (airbags) will be disabled. Not calibrating the brake pedal sensor can lead to incorrect brake light operation or issues with stability control systems, both of which are significant safety concerns.