Restore Full Electrical Function to Your GM Vehicle
Is your 2008-2012 GMC Savana 1500 suffering from bizarre electrical problems? Flickering lights, malfunctioning power windows, a security system that acts up, or even a no-start condition can often be traced back to a single, critical component: the Body Control Module (BCM). As the central nervous system for your vehicle’s electronic accessories, a failing BCM can create a cascade of frustrating and difficult-to-diagnose issues. This replacement Body Control Module, part number 25934763, is the definitive solution to restore your van’s reliability and functionality.
We take the guesswork and hassle out of the replacement process. Unlike a generic module from a dealership or parts store, this BCM arrives at your door pre-programmed specifically for your vehicle. Simply provide us with your Vehicle Identification Number (VIN) after purchase, and our technicians will flash the module with the latest GM software updates and your vehicle’s exact configuration. This ensures seamless integration and avoids the need for expensive programming tools or a trip to the dealer.
From the Diagnostic Bay
We had a 2011 Express van come in with a classic “parasitic draw” complaint. The owner had replaced the battery twice, but it would still be dead every few mornings. Standard tests showed a significant power draw even with the key off. After pulling fuses one by one, we isolated the draw to a circuit controlled by the BCM. The internal relays of the original module were sticking, keeping certain systems awake long after the van was shut down. Installing a correctly programmed BCM didn’t just fix the draw; it also resolved intermittent radio and power lock issues the owner had learned to live with. It’s a perfect example of how one failing module can cause multiple, seemingly unrelated problems.
Diagnosing a Faulty Savana 1500 Body Control Module
The BCM manages a wide array of functions, so symptoms of failure can be diverse. If your vehicle is experiencing several of the following issues, a faulty BCM is the most likely culprit. This module is the correct solution for these common electrical failures.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, and mirrors.
- ✔ Erratic interior or exterior lighting (lights staying on, flickering, or not working at all).
- ✔ Malfunctioning dashboard gauges or warning lights that illuminate for no reason.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Problems with the anti-theft or keyless entry systems.
- ✔ A/C and heater controls behaving erratically.
- ✔ Communication errors with other vehicle modules, leading to a no-start condition.
Simple Installation and Post-Install Notes
Once you receive your VIN-programmed module, installation is straightforward. The BCM is typically located in the center dash area on Savana and Express vans. Disconnect the negative battery terminal, access the module, carefully unplug the electrical connectors, and swap the old unit with the new one. While our programming handles the majority of the setup, some vehicles may require simple post-installation relearn procedures for full functionality.
- Airbag System Sync: If the airbag warning light is on after installation, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light and traction control operation.
Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
Guaranteed Fitment for Multiple Part Numbers
This module is a direct replacement for a wide range of original equipment part numbers, ensuring compatibility across numerous GM models. This part will fit 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 do any programming myself?
No. This Body Control Module comes fully programmed to your vehicle’s VIN. We handle all the software flashing before it ships, so it’s ready for installation right out of the box.
Where is the BCM located on my 2010 Savana van?
On most 2008-2012 Savana and Express vans, the BCM is located behind the center part of the dashboard, often near the radio or climate controls. Access may require removing some dash trim panels.
What happens if I don’t provide my VIN?
Providing your VIN is mandatory for this part. We cannot program and ship the module without it, as the programming is specific to your vehicle’s factory options and security system. Your order will be held until the VIN is received.
Will this fix my ‘Service Theft System’ message?
A faulty BCM is a very common cause of issues with the GM Passlock and Passkey anti-theft systems. In many cases, replacing the BCM will resolve these error messages and related starting problems.
Is there a core charge for this part?
No, there is no core charge. You can keep your original module without needing to send it back to us.