Restore Full Electrical Function to Your GM Vehicle
Is your Chevy Express or GMC Savana van experiencing bizarre electrical problems? Flickering lights, malfunctioning power windows and locks, or a security system that acts up are all classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it fails, it can cause a cascade of frustrating and difficult-to-diagnose issues. This replacement Body Control Module, part number 25892622, is the definitive solution to restore your vehicle’s factory performance and reliability.
Expert Pro Tip: Before condemning your BCM, always perform a full battery and charging system test. A weak battery or failing alternator can cause low voltage conditions that mimic BCM failure. Also, check the main power and ground connections to the BCM for corrosion or looseness, as these are common failure points, especially on work vans exposed to the elements.
Symptoms of a Failing Express 2500 Body Control Module
A faulty BCM can manifest in numerous ways, often intermittently at first. If you’re noticing any of the following issues, it’s a strong indication that your BCM needs replacement. This module is the correct solution for these common problems.
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights staying on, flickering, or not turning on when they should.
- ✔ The security system or keyless entry failing to work correctly, or the alarm sounding randomly.
- ✔ The instrument cluster displaying incorrect information, warning lights illuminating without cause, or gauges behaving strangely.
- ✔ The radio or climate control system malfunctioning.
- ✔ A parasitic battery drain that kills your battery overnight.
- ✔ In some cases, a no-start or intermittent starting condition if the BCM fails to communicate with the immobilizer system.
Plug-and-Play Solution with VIN Programming
Replacing a BCM isn’t as simple as swapping the part. Modern modules are coded specifically to the vehicle’s unique Vehicle Identification Number (VIN) and its specific options. Our service eliminates the need for an expensive trip to the dealership for programming. Simply provide us with your VIN during checkout, and we will program this module with the latest GM software updates for your exact vehicle. This ensures that when the part arrives, it is ready for installation, making the process as seamless as possible.
Installation and Post-Install Procedures
After installing the new module, some vehicles may require additional relearn procedures to ensure all systems communicate correctly. While our VIN programming handles the critical setup, be aware of the following potential requirements:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool. This syncs the new BCM with the airbag system’s Sensing and Diagnostic Module (SDM).
- 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: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Guaranteed Fitment and Part Number Compatibility
This module is a direct replacement for a wide range of GM vehicles and part numbers. If your original module has any of the following numbers, this part is the correct replacement for you:
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.
This part fits a wide array of models including the Chevy Express, GMC Savana, Tahoe, Suburban, Impala, Cadillac Escalade, and more. Please verify your part number to ensure compatibility.
Frequently Asked Questions
What does the Body Control Module (BCM) do on my vehicle?
The BCM is a computer that acts as a central hub for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, security system, and the instrument cluster. It communicates with other modules to ensure everything works in harmony.
Do I need to get this module programmed by a dealer?
No. We handle the programming for you before shipment. Simply provide your vehicle’s VIN when you order, and the module will arrive flashed with the latest GM software for your specific vehicle, making it ready for installation.
Where is the BCM located on a 2008-2012 Express 2500?
On the Chevy Express and GMC Savana vans, the BCM is typically located behind the dashboard, near the center stack or on the driver’s side behind the lower dash panel. Always consult a service manual for the exact location and removal procedure for your specific model.
Will this fix the parasitic battery drain I’m experiencing?
A failing BCM is a very common cause of parasitic battery drain. If the module fails to ‘go to sleep’ properly after the vehicle is turned off, it can continue to draw power and drain the battery. Replacing a faulty BCM often resolves this issue.
Is there a core charge for this part?
No, there is no core charge for this module. You can keep your original part without needing to send it back to us.