Restore Your Van’s Electrical System with a Reliable, Programmed BCM
If your 2008-2012 Savana 3500 Van is plagued by baffling electrical problems—like flickering lights, malfunctioning power windows, or a starter that won’t engage—a failing Body Control Module (BCM) is the likely culprit. As the central command center for your vehicle’s body electronics, a faulty BCM can bring your workhorse to a standstill, costing you time and money. This replacement BCM is your direct-fit, plug-and-play solution to get your van back in service quickly and reliably.
We take the guesswork and dealer hassle out of the equation. Simply provide your van’s VIN at checkout, and our technicians will flash this module with the latest GM software specific to your vehicle’s configuration. This means it arrives ready to install, eliminating the need for expensive programming at a dealership. This is the most efficient way to solve complex electrical issues and restore full functionality to your Savana.
A Technician’s Notebook: The Contractor’s Van
A local plumber brought in his ’11 Savana 3500. The complaint was a classic BCM failure story: the dome lights would stay on, the driver’s side power lock was dead, and intermittently, the van wouldn’t start—just a click. He’d already replaced the battery and checked fuses. After hooking up the scan tool, I saw a slew of U-codes (communication errors) pointing to the BCM. Instead of a costly trip to the dealer and days of downtime, we installed one of our pre-programmed modules. In under an hour, all the gremlins were gone. The van was back on the road, and the plumber was back to making service calls that afternoon. That’s the power of a pre-flashed, reliable part.
Is Your Savana Van Showing These Electrical Gremlins?
- ✔ Power windows or door locks operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or failing to turn on.
- ✔ The security system preventing the engine from starting (Security light on).
- ✔ The horn sounding unexpectedly or not working.
- ✔ Inconsistent or non-functional windshield wipers.
- ✔ False warnings on the instrument cluster (e.g., “door ajar”).
- ✔ Diagnostic trouble codes (DTCs) related to communication loss, such as U0140, U0155, or U0164.
Get Your Van Back to Work: Fast Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On most Savana and Express vans, the BCM is located in the center dash area. You may need to remove a few dash panels for access.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. Note their orientation. Then, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely reconnect all electrical connectors to their corresponding ports.
- ✔ Reconnect Power: Re-attach the negative battery terminal.
- ✔ Perform Relearns (If Needed): Start the vehicle. Check all functions (lights, locks, windows). If an airbag light is on or brake functions seem off, you may need to perform the post-installation procedures noted below with a capable scan tool.
Post-Installation Notes
While this BCM is programmed for a plug-and-play experience, some vehicle systems may require a final handshake to sync properly. These procedures typically require a professional-grade diagnostic tool:
- Airbag System Sync: If the airbag warning light is illuminated after installation, the ‘Setup SDM Primary Key in BCM’ procedure is needed to sync the systems.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary for proper brake light and traction control operation.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or consult with a qualified mechanic for procedures specific to your vehicle.
Verified Vehicle Compatibility
This Body Control Module is a direct replacement for part number 15921352 and is compatible with a wide range of GM vehicles. While this listing is focused on the 2008-2012 Savana 3500 BCM, it also fits the following models. Please verify your part number and vehicle options to ensure correct fitment.
- Acadia (2007-2012)
- Avalanche 1500 (2010)
- Caprice (2011-2013)
- Captiva Sport (2012)
- CTS (2008-2013)
- DTS (2006-2011)
- Enclave (2008-2012)
- Equinox (2007-2009)
- Escalade, ESV, EXT (2010)
- Express Van 1500/2500/3500 (2008-2012)
- G8 (2008-2009)
- Hummer H2 (2008-2009)
- Impala (2006-2013)
- Lucerne (2006-2011)
- Monte Carlo (2006-2007)
- Outlook (2007-2010)
- Savana Van 1500/2500/3500 (2008-2012)
- SRX (2007-2009)
- STS (2010)
- Suburban 1500 (2010)
- Tahoe (2010)
- Torrent (2007-2009)
- Traverse (2009-2012)
- Vue (2008-2010)
- Yukon / Yukon XL 1500 (2010)
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
Do I need to send my old BCM back?
No, there is no core charge for this module. You can keep your original part.
How do you program the BCM to my van?
After you place your order, you will need to provide us with your vehicle’s 17-digit VIN. We use this information to load the correct GM factory software and settings onto the module before shipping it to you.
What tools are needed for installation?
Basic hand tools like a socket set and screwdrivers are typically all that’s required for the physical installation. In some cases, a professional scan tool may be needed for post-install relearn procedures like the airbag system sync.
Will this fix my ‘Service Airbag’ light?
If the BCM is the cause of the light, yes. However, after installation, the airbag system (SDM) and BCM must be synced using a ‘Setup SDM Primary Key in BCM’ procedure with a capable scan tool. This is a standard security step for safety systems.
Is this a guaranteed fix for my vehicle’s problems?
This BCM will fix any issues directly caused by a faulty Body Control Module. It is crucial to have your vehicle properly diagnosed by a professional to ensure the BCM is the root cause before ordering.