If you’re dealing with bizarre electrical problems in your 2008-2012 Savana 1500, you’re not alone. As a technician with over two decades of experience, I’ve seen firsthand how a failing Body Control Module (BCM) can turn a reliable workhorse into a source of constant frustration. The BCM is the central command center for your van’s body electronics—from the interior lights and power locks to the security system and dashboard warnings. When it starts to fail, it can create a cascade of confusing and seemingly unrelated issues.
This isn’t just a replacement part; it’s a direct solution. We take the guesswork and expensive dealership trips out of the equation. This BCM, part number 25826125, arrives at your door programmed specifically for your van. All we need is your Vehicle Identification Number (VIN) after you place your order. We’ll flash the module with the latest GM software updates, ensuring it communicates perfectly with your vehicle’s existing systems right out of the box. This is the most efficient way to restore your van’s functionality and get it back on the road, where it belongs.
Case Study: A Tricky Diagnosis
I remember a 2011 Savana 1500 that came into the shop a few years back. The owner, a contractor, was at his wit’s end. The dome lights would flicker randomly, the power door locks worked intermittently, and sometimes the van wouldn’t start, showing a ‘Service Theft System’ message. He’d already replaced the battery and checked the alternator. A quick scan with a professional tool revealed a slew of U-codes, specifically a U0140 – Lost Communication With Body Control Module. The BCM wasn’t just failing; it was intermittently dropping off the network, causing chaos. Swapping in a pre-programmed BCM like this one solved every single issue in under an hour. It’s a classic example of how one component can create multiple headaches.
Is Your Savana Showing These BCM Failure Signs?
A faulty Savana 1500 Body Control Module can manifest in various ways. Check if you’re experiencing any of the following:
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows or door locks that work intermittently or not at all.
- ✔ The security or anti-theft system light stays on, preventing the van from starting.
- ✔ Dashboard warning lights (like ABS or Airbag) appearing for no reason.
- ✔ Communication error codes, such as U0140, stored in the system.
- ✔ The horn sounding unexpectedly or not working when pressed.
- ✔ Problems with the heating and A/C blower motor controls.
Your Step-by-Step Savana BCM Replacement Guide
Replacing the BCM in your Savana is a manageable job for a DIYer with basic tools. The module is typically located behind the center dash panel.
- Safety First: Always disconnect the negative terminal from your van’s battery and wait about 10 minutes to ensure all systems are powered down.
- Access the Module: Carefully remove the trim and panels around the center dash and radio area to expose the BCM. It’s a black box with several large electrical connectors.
- Swap the Connectors: Take a photo of the connector layout before you begin. Then, carefully release the locking tabs on each electrical connector and unplug them from the old BCM.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location. Firmly plug in all the electrical connectors until they click securely into place.
- Final Steps: Reassemble your dashboard panels. Reconnect the negative battery terminal. Start the vehicle to confirm the fix. Note that some post-install procedures, like an airbag or brake sensor relearn, may be required.
Verified Vehicle Compatibility
While this listing is focused on the Savana 1500 Body Control Module, this part is a direct replacement for a wide range of GM vehicles and part numbers. Please verify your original part number against the list below or confirm fitment for your specific model.
This module is a direct replacement for 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.
Fits models including: 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 (10), Express/Savana Vans (08-12), G8 (08-09), H2 (08-09), Impala (06-13), Lucerne (06-11), Monte Carlo (06-07), Outlook (07-10), SRX (07-09), STS (10), Suburban (10), Tahoe (10), Torrent (07-09), Traverse (09-12), Vue (08-10), Yukon (10).
Always consult your vehicle’s service manual or a professional for model-specific locations and procedures.
Why do you need my VIN?
Why do you need my VIN?
Your VIN is essential for us to program the BCM with the correct software and vehicle-specific options for your 2008-2012 Savana 1500 Van. This ensures it works seamlessly with your existing systems, like key fobs and security features, without requiring a trip to the dealer.
Is there a core charge?
No, there is no core charge. You can keep your old module, which saves you the time and expense of shipping it back.
What happens if my airbag light comes on after installation?
In some cases, the new BCM needs to be synced with the airbag system’s SDM (Sensing and Diagnostic Module). This is a simple procedure called ‘Setup SDM Primary Key in BCM’ that can be performed by a technician with a professional-grade scan tool.
Will I need to perform any other procedures after installing the BCM?
Depending on your vehicle, a Brake Pedal Position (BPP) sensor relearn may be necessary. This ensures your brake lights and traction control system function correctly. This is also a simple procedure done with a capable scan tool.
How can I be sure the BCM is the problem?
The best way to confirm a BCM failure is with a proper diagnosis using a scan tool that can read body codes (B-codes) and network codes (U-codes). Symptoms like multiple, unrelated electrical failures are a strong indicator, but a professional diagnosis is always recommended.