Is your Savana van acting possessed? Flickering lights, malfunctioning power windows, a security light that won’t turn off, or even a frustrating no-start condition can often be traced back to one component: the Body Control Module (BCM). As the central command center for your vehicle’s electronics, when the BCM fails, it can create a cascade of baffling electrical problems that can bring your work or daily life to a grinding halt.
I’ve been diagnosing these systems for over two decades, and I’ve seen firsthand how a failing BCM can mimic a dozen other issues. Don’t waste time and money chasing down phantom problems. This is a direct-fit, reliable solution for your 2008-2012 Savana 2500 BCM and a wide range of other GM vehicles. The key to our service is convenience and accuracy: we perform a cloning service. This means we transfer the precise data from your original module to this replacement unit. The result? You get a part that is truly plug-and-play, with no need for an expensive trip to the dealership for programming.
A Technician’s Notebook
I remember a 2011 Express 2500 work van that came into my bay last month. The owner was at his wit’s end. His interior lights would stay on, draining the battery overnight, and the power locks worked only when they felt like it. He’d already replaced the battery and checked all the fuses. After connecting my scan tool, I saw a handful of U-codes (communication errors), a classic sign the network’s ‘manager’—the BCM—was failing. Instead of a costly new module and dealer programming, we used a cloned unit like this one. We swapped it in, and within 30 minutes, every single function was restored. The owner was back on the road to his next job, saving hundreds in parts and labor.
Common Signs of a Failing BCM
If your vehicle is experiencing any of the following, a faulty Body Control Module is a likely culprit. Look for these tell-tale symptoms:
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not turning on at all).
- ✔ The security or anti-theft light stays illuminated, potentially causing a no-start condition.
- ✔ The horn sounding unexpectedly or not working when pressed.
- ✔ Dashboard warning lights appearing for no reason.
- ✔ Communication Diagnostic Trouble Codes (DTCs), often in the U-series (e.g., U0100, U0140).
- ✔ Wipers or climate control functions operating incorrectly.
Your Straightforward BCM Installation Guide
Installing your cloned BCM is a manageable job for a confident DIYer. Here is a general guide to get you started. The BCM in your Savana or Express van is typically located behind the center dash panel.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning work.
- Access the Module: Carefully remove the necessary dash trim panels to gain access to the BCM. On these vans, this often involves removing the lower dash cover or glove box assembly.
- Disconnect and Remove: Identify the BCM. Carefully release the locking tabs on the electrical connectors and unplug them. Then, unbolt or unclip the module from its mounting bracket and remove it from the vehicle.
- Install the New BCM: Mount the replacement module securely onto the bracket. Reconnect all electrical connectors, making sure they click firmly into place.
- Final Steps: Reassemble your dashboard trim. Reconnect the negative battery terminal. Start the vehicle and test all body functions—lights, locks, windows, wipers, etc.—to confirm the repair.
Important Post-Installation Information
Because we are cloning your original module, most vehicle-specific relearn procedures are not required. However, depending on your vehicle’s specific configuration, you may encounter the following:
- Airbag System Sync: If the airbag (SRS) warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional-grade scan tool. This syncs the security handshake between the airbag module and the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be needed to ensure correct operation of the brake lights and stability control systems.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual for procedures specific to your make and model.
Verified Vehicle Compatibility
This module is a direct replacement for part number 25826124 and interchanges with a wide array of other part numbers. It is compatible with numerous GM vehicles. Please match your part number or verify fitment with your specific model and year. This part fits, but is not limited to, the following vehicles:
- 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 VAN 08-12
- EXPRESS 2500 VAN 08-12
- EXPRESS 3500 VAN 08-12
- G8 08-09
- HUMMER H2 08-09
- IMPALA 06-13
- LUCERNE 06-11
- MONTE CARLO 06-07
- OUTLOOK 07-10
- SAVANA 1500 VAN 08-12
- SAVANA 2500 VAN 08-12
- SAVANA 3500 VAN 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
This module replaces the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084.
Frequently Asked Questions
Frequently Asked Questions
How does the cloning service work?
After you place your order, we will provide instructions for sending us your original BCM. We then use specialized equipment to read the unique vehicle data from your module and write it directly onto the replacement unit. This ensures perfect compatibility without dealer intervention.
Do I need to send my VIN number?
Yes, after your purchase, you must provide us with your VIN. While we are cloning your original module, the VIN helps us verify the hardware and software compatibility and load the latest GM updates for your specific vehicle configuration.
Is this BCM difficult to install?
For someone with moderate mechanical skill, it’s a very manageable job. The main challenge is accessing the module, which is usually located under the dashboard. No special programming tools are required for the installation itself.
What happens to my old BCM?
Our policy is simple: your original module is always returned to you along with the newly programmed replacement unit. We do not keep your original part.
Will this fix my ‘Service Theft System’ message?
In many cases, yes. The BCM is a critical part of the vehicle’s immobilizer and security system. A failing BCM is a very common cause for security-related warnings and no-start problems.