Tired of Chasing Electrical Gremlins in Your GM Vehicle?
If you’re dealing with flickering lights, malfunctioning power windows, a security system that has a mind of its own, or a dashboard lit up with warning messages, the culprit is often the Body Control Module (BCM). As the central nervous system for your vehicle’s electronics, when the BCM starts to fail, it can cause a cascade of frustrating and seemingly unrelated problems. For workhorse vehicles like the Chevy Express or GMC Savana, this isn’t just an annoyance—it’s downtime that costs you money.
This isn’t just another part pulled from a shelf. This is a complete, stress-free solution. We provide a quality replacement BCM that is professionally prepared using our Cloning Service. We transfer the critical data—including your vehicle’s VIN, mileage, and specific options—from your original module directly onto this replacement unit. This ensures a seamless installation without the need for an expensive trip to the dealership for programming. You get a part that’s truly plug-and-play, getting your vehicle back on the road quickly and reliably.
Case Study: The Van That Wouldn’t Cooperate
A few months back, a 2011 Express 2500 was brought into a partner shop. The complaint was intermittent no-start and the radio turning on and off by itself. The mechanic had already replaced the battery and checked the alternator. Diagnostics were tricky because the issue was so random. After connecting my scan tool, I noticed several U-codes (communication loss) pointing to the BCM. On these vans, the BCM is located in the center dash, where it’s subjected to years of vibration and temperature swings. We confirmed the failure by monitoring data streams during a wiggle test of the BCM connectors. By providing a cloned 2008-2012 Express 2500 BCM, the shop was able to perform a simple swap in under an hour. No programming, no headaches. The van started reliably, and the electrical gremlins were gone for good. This is the exact solution we offer you.
Is Your GM Vehicle Exhibiting These Classic BCM Failure Signs?
- ✔ Intermittent or non-functional power windows, locks, or mirrors.
- ✔ Interior or exterior lights behaving erratically (staying on, not turning on, or flickering).
- ✔ The security system preventing the vehicle from starting (Security light on).
- ✔ False warnings appearing on the instrument cluster (e.g., “Service StabiliTrak,” “Service Airbag”).
- ✔ Communication loss DTCs, such as U0140, U0155, or other U-codes.
- ✔ Inconsistent A/C or climate control operation.
- ✔ A complete no-start condition where the starter doesn’t even click.
A Straightforward Guide to Your BCM Swap
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On Express/Savana vans, the BCM is typically found in the center dash area. On other models, it may be under the steering column or on the left-hand side of the dash. A quick search for your specific model will confirm its location.
- ✔ Remove Trim and Access: Carefully remove any dash panels or trim necessary to access the BCM. Keep track of all screws and clips.
- ✔ Disconnect and Remove: Unplug the electrical connectors from the old BCM. They have locking tabs that must be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, cloned BCM in the same location and securely reconnect all electrical connectors. You should hear a click as they lock into place.
Important Post-Installation Information
Our cloning service handles the vast majority of the setup, but some GM vehicles may require a simple relearn procedure after installation. This is standard for the vehicle’s security architecture.
- Airbag System Sync: If the airbag light is on after installation, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” procedure. This syncs the modules and is often a quick process.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be needed to ensure correct brake light and traction control function.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a qualified technician if you are unsure about any step.
Verified Vehicle Compatibility List
This BCM, part number 15872388, is a direct replacement for a wide range of GM vehicles and is interchangeable with the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, and 95151084. Please match your part number or vehicle in the list below.
Acadia (07-12), Avalanche 1500 (10), Caprice (11-13), Captiva Sport (12), CTS (08-13), DTS (06-11), Enclave (08-12), Equinox (07-09), Escalade / ESV / EXT (10), Express 1500/2500/3500 Vans (08-12), G8 (08-09), Hummer H2 (08-09), Impala (06-13), Lucerne (06-11), Monte Carlo (06-07), Outlook (07-10), Savana 1500/2500/3500 Vans (08-12), SRX (07-09), STS (10), Suburban 1500 (10), Tahoe (10), Torrent (07-09), Traverse (09-12), Vue (08-10), Yukon / Yukon XL 1500 (10).
How does the cloning service work?
How does the cloning service work?
After you purchase, you’ll need to send us your original BCM. We use specialized equipment to extract the vehicle-specific data (VIN, mileage, key codes, etc.) and flash it onto the replacement module. We then ship both your original module and the ready-to-install replacement back to you. This makes the new BCM a true plug-and-play part.
Do I need to send my VIN number?
Yes. While we clone the data from your original module, we also use the VIN to verify the correct factory software and updates are applied, ensuring perfect compatibility with your 2008-2012 Express 2500 BCM and other models.
Will this fix my ‘Service StabiliTrak’ message?
A failing BCM is a common cause for this message because it disrupts communication between the brake, steering, and stability control systems. While not a guarantee for every case, if the BCM is the source of the communication fault, this replacement will resolve the issue.
Is this a difficult part for a DIYer to replace?
For most models, including the Express/Savana vans, the replacement is straightforward for someone with basic mechanical skills. The main challenge is accessing the module, which may require removing some dash panels. Since our cloning service eliminates the need for programming, the electrical part of the job is simply unplugging the old unit and plugging in the new one.
What is your core policy? Do you keep my old BCM?
We do not have a core charge or policy. Your original module is required for the cloning process and will always be returned to you along with the newly programmed replacement unit.