Restore Full Electrical Function to Your GM Vehicle
Are you battling bizarre electrical issues in your 2008-2012 GMC Savana 1500 Van? Flickering lights, malfunctioning power windows, a dead battery overnight, or a security system that acts up on its own are all classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s electronic accessories, and when it fails, it can cause a cascade of frustrating and hard-to-diagnose problems. This replacement Body Control Module, part number 25910474, is the reliable, straightforward solution to get your van operating correctly again.
From the Diagnostic Bay
We had a 2011 Savana work van come in that was draining its battery every two days. The owner had already replaced the battery and alternator. After checking for parasitic draws, we noticed the interior lights would faintly glow long after the doors were shut. A scan tool pointed to communication errors with the BCM. After installing a VIN-programmed module like this one, the parasitic draw vanished, and the van started reliably every time. It’s often these subtle symptoms that point directly to a faulty BCM.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system or keyless entry failing to operate correctly.
- ✔ Unexplained parasitic battery drain leading to a dead battery.
- ✔ Warning lights on the dashboard, such as the airbag or brake light, staying on.
- ✔ The vehicle failing to start, even with a good battery and starter.
A Pre-Programmed Savana 1500 Body Control Module Solution
The biggest hurdle in replacing a BCM is the required programming. A new module from the dealership won’t work until it’s been coded to your vehicle’s specific VIN and options, a process that adds time and significant cost. We eliminate that hassle. When you purchase this module, simply provide us with your VIN. We will flash the unit with the latest GM software updates specific to your vehicle before it ships. This makes the installation process as simple as possible, getting you back on the road faster and saving you a trip to the dealer.
Important Post-Installation Steps
While this module is programmed for your VIN, some vehicle systems may require a ‘handshake’ with the new BCM after installation. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the airbag system with the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure your brake lights and traction control system function as intended.
Guaranteed Fitment
This BCM is a direct replacement for a wide range of GM vehicles and part numbers. If your original module carries any of the following part numbers, this unit is a compatible replacement: 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. While it fits many models like the Impala, Tahoe, and Acadia, this listing is specifically for the 2008-2012 Savana 1500 Van.
Frequently Asked Questions
How does the programming process work?
After you complete your purchase, you will need to provide us with your vehicle’s 17-digit VIN. Our technicians will use the VIN to load the correct software and vehicle-specific settings onto the BCM before we ship it to you.
Is this part truly plug-and-play?
It is designed to be as close to plug-and-play as possible. Because it comes programmed, it eliminates the most difficult step. However, as noted, certain vehicles may require additional relearn procedures for the airbag or brake systems with a professional scan tool.
What happens if I don’t do the airbag or brake relearn procedures?
If your vehicle requires these procedures and they are not performed, you may have a persistent airbag warning light on your dash, or your brake lights and traction control may not function correctly.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.
How can I be sure the BCM is my problem?
The symptoms listed above are strong indicators of a failing BCM. However, for a definitive diagnosis, we always recommend having a qualified technician inspect the vehicle and check for trouble codes with a professional-grade diagnostic tool.