Restore Your Van’s Electrical Systems with a Reliable, Programmed BCM
Are you chasing electrical gremlins in your Chevy Express or GMC Savana van? Intermittent power windows, a flickering dash, a security light that won’t turn off, or even a frustrating no-start condition are all classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause a cascade of confusing and unpredictable problems. This isn’t just an annoyance; it can compromise your vehicle’s security and functionality, especially for a workhorse like the Express 2500.
This is a direct-fit replacement Body Control Module, arriving at your door pre-programmed to your specific vehicle. We take the guesswork and high dealership costs out of the equation. Simply provide us with your vehicle’s VIN after purchase, and our technicians will flash the module with the latest GM-certified software. This ensures that all factory-installed options for your van work correctly right out of the box, getting you back on the road or back to the job site with confidence.
Case Study: A Tricky Diagnosis
A customer’s 2011 Express 2500 came into the shop last month with a truly baffling set of symptoms. The radio would randomly shut off, the dome lights would stay on, and the power locks worked only half the time. The owner had already replaced the battery and checked all the fuses. Diagnostics showed a series of communication errors between various modules. After spending an hour tracing wires, we isolated the issue to the BCM. It was failing internally, sending erratic signals across the CAN bus network. Installing a pre-programmed 2008-2012 Express 2500 BCM like this one resolved all the issues in a single afternoon, saving the customer from what could have been days of costly diagnostic labor.
Is Your Van Showing These Electrical Gremlins?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Power windows, mirrors, or door locks operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security system alarm sounding randomly or the vehicle refusing to start.
- ✔ The horn honking unexpectedly.
- ✔ Multiple, unrelated warning lights on the dashboard (e.g., ABS, Airbag).
- ✔ Problems with the heating and A/C blower motor controls.
Your Straightforward BCM Installation Guide
Replacing the BCM is a manageable job for a DIYer with basic tools. While the pre-programming saves you a trip to the dealer for software flashing, a couple of final steps are crucial for safety and function.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to allow the systems to fully discharge.
- Locate the BCM: On most Express and Savana vans, the BCM is located in the center dash area. You may need to remove a lower dash panel for access. On other GM models, it could be under the steering column or on the left-hand side of the dash.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that must be depressed. Once disconnected, unbolt or unclip the old module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Important Final Procedures: After installation, two key procedures may be required. First, the ‘Setup SDM Primary Key in BCM’ must be performed with a compatible diagnostic tool to clear any airbag warning lights. Second, some vehicles require a brake pedal position sensor recalibration to ensure proper brake light function and stability control performance.
Verified to Fit These GM Models
This module, part number 25847589, is a direct replacement for a wide range of GM vehicles and supersedes many older part numbers. Please verify your vehicle is on this list. This is a comprehensive solution for many popular cars, trucks, and SUVs.
This part is a confirmed fit for 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.
AVALANCHE 1500 10 (ID 25892622)
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
Is this BCM truly plug-and-play?
Yes, for the most part. We program it to your VIN, so it will communicate with your vehicle’s existing components. However, as noted, you will need a diagnostic tool to perform the ‘Setup SDM Primary Key’ for the airbag system and potentially a brake pedal relearn procedure. These are security and safety steps required for any BCM replacement.
What happens if I don’t provide my VIN?
We cannot ship the module without your VIN. The programming is essential for the part to function correctly in your specific vehicle. It ensures all your factory options (like power locks, specific lighting, etc.) are recognized by the BCM.
Will this fix my ‘Service Theft System’ message?
A failing BCM is a very common cause of security system faults and the ‘Service Theft System’ message. While other issues can cause this, replacing a faulty BCM often resolves the problem. This programmed unit will correctly sync with your vehicle’s anti-theft components.
Do I need to send my old BCM back (core charge)?
This listing does not require a core return. You can keep or dispose of your old module.
How do I find the BCM in my 2010 Express 2500?
In the 2008-2012 Express and Savana vans, the Body Control Module is typically located behind the lower dash panel, near the center console area. You will likely need to remove the trim piece below the radio and climate controls to access it.
Can I do the final relearn procedures myself?
If you own a high-level bidirectional scan tool (like some Autel or Snap-on models), you can likely perform these procedures yourself. If you only have a basic code reader, you will need to have a local mechanic or a well-equipped shop complete these final steps for you.