Restore Your Van’s Electrical System with a Reliable BCM
If you’re dealing with bizarre electrical issues in your 2008-2012 Chevy Express 2500 Van—like power windows with a mind of their own, flickering dash lights, or a security system that prevents the engine from starting—you’re likely facing a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and unpredictable problems, costing you time and money, especially when your van is your livelihood. This isn’t just an inconvenience; it’s a direct hit to your productivity.
This replacement Body Control Module, part number 25826125, is the definitive solution to get your workhorse back in top form. We take the guesswork and dealership hassle out of the equation. Before we ship, we program the module with the latest GM software updates, using your van’s specific VIN. This ensures that when it arrives, it’s a direct-fit, ready-to-install component that communicates perfectly with your vehicle’s existing systems. This is the most efficient way to solve those electrical gremlins and restore full functionality to your van’s accessories and security features.
A Technician’s Notebook: The Intermittent No-Start
I had a fleet customer bring in an ’11 Express 2500 that would randomly refuse to start. No crank, just a click. The battery was good, the starter checked out, but the security light was flashing. After hours of chasing wires, we found the BCM was intermittently failing to recognize the key’s transponder signal. It was a classic BCM failure. We swapped in a pre-programmed module like this one, and the van was back on the road earning money that same afternoon. It’s a fix I’ve performed hundreds of times; these modules are the key to resolving those hard-to-diagnose electrical headaches.
Is Your Express Van Showing These Electrical Faults?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your Express 2500 Body Control Module needs replacement:
- ✔ Erratic or non-functional interior/exterior lights (headlights, dome lights, turn signals).
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ The anti-theft system activating incorrectly, leading to a no-start or no-crank condition.
- ✔ Inaccurate or dead gauges on the instrument cluster.
- ✔ Warning lights for ABS, Airbag, or Traction Control staying on.
- ✔ Diagnostic trouble codes (DTCs) related to communication loss, such as U0140, U0155, or other U-codes.
- ✔ The radio or climate control system behaving erratically.
Get Your Van Back to Work: BCM Installation Steps
For the confident DIYer or professional mechanic, installing this BCM is a straightforward process. The module is typically located in the center dash area on Express vans.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait 10-15 minutes for the system capacitors to discharge.
- Locate the BCM: On the Express 2500, you’ll generally find the BCM behind the center dash panel or glove box area. You may need to remove some trim panels for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical harnesses. Ensure each connector clicks firmly into place.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Relearn Procedures: Start the vehicle. Depending on your specific model, you may need to perform additional procedures. If the airbag light is on, an ‘Airbag System Sync’ (Setup SDM Primary Key) is required with a pro-level scan tool. A ‘Brake Pedal Position Relearn’ might also be necessary. Always consult a service manual for model-specific requirements.
Verified Compatibility for Your GM Vehicle
While this is a direct-fit solution for the 2008-2012 Express 2500 Van, this versatile Express 2500 Body Control Module is also compatible with a wide array of other GM vehicles. Please verify your part number or consult the list below. This module replaces part numbers: 10382479, 15093910, 15276271, 15819552, 20815898, 20921435, 22860591, 25826125, and many more.
AVALANCHE 1500 10
CAPRICE 11-13
CAPTIVA SPORT 12
CTS 08-13
DTS 06-11
ENCLAVE 08-12
EQUINOX 07-09
ESCALADE 10
ESCALADE ESV 10
ESCALADE EXT 10
EXPRESS 1500 VAN 08-12
EXPRESS 2500 VAN 08-12
EXPRESS 3500 VAN 08-12
G8 08-09
HUMMER H2 08-09
IMPALA 06-13
LUCERNE 06-11
MONTE CARLO 06-07
OUTLOOK 07-10
SAVANA 1500 VAN 08-12
SAVANA 2500 VAN 08-12
SAVANA 3500 VAN 08-12
SRX 07-09
STS 10
SUBURBAN 1500 10
TAHOE 10
TORRENT 07-09
TRAVERSE 09-12
VUE 08-10
YUKON 10
YUKON XL 1500 10
Frequently Asked Questions
Why do you need my VIN?
Your VIN is essential. We use it to load the correct GM-certified software and vehicle-specific options into the BCM. This ensures it works seamlessly with your truck’s features, like power locks, keyless entry, and security system, right out of the box.
Is this a plug-and-play part?
Because we program it to your VIN, it is as close to plug-and-play as possible. However, as with any BCM replacement, some vehicles may require a simple ‘Brake Pedal Position Relearn’ or an ‘Airbag System Sync’ with a scan tool if certain warning lights appear after installation.
Do I need to return my old BCM?
No. There is absolutely no core charge for this part. You can keep your old module, which saves you the time and money associated with return shipping.
What functions does the BCM control on my Express Van?
The BCM is the brain for most non-engine related electronics. This includes the power windows and locks, interior and exterior lighting, horn, anti-theft system (Passlock/Passkey), wiper/washer system, and communication between other modules on the data network.
Will this fix my ‘Service Airbag’ light?
If the BCM is the cause of the light, yes. After installation, if the light remains on, a simple ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool will be required to sync the new BCM with the airbag system and turn off the light.