Is Your Express 3500 Acting Possessed?
If your workhorse 2008-2012 Express 3500 is suddenly plagued by bizarre electrical issues—flickering lights, power windows and locks with a mind of their own, or a security light that prevents it from starting—the Body Control Module (BCM) is the most likely culprit. As the central nervous system for your van’s electronics, a failing BCM can cause chaos, keeping your vehicle off the road and costing you money. Don’t let a faulty module dictate your workday. This is the direct, reliable solution to restore order.
The Smart Solution: VIN-Programmed & Ready to Install
Forget about towing your van to the dealership and paying for expensive programming and labor. We simplify the entire process. When you order, simply provide your vehicle’s VIN, and our technicians will program this BCM with the latest GM-certified software specific to your Express 3500. It arrives at your door ready for a straightforward installation, getting you back in business faster.
Expert Pro Tip from a 20-Year Tech
“A customer’s 2011 Express 3500 came in last month with a battery that would die overnight. They’d already replaced the battery and alternator. After a quick parasitic draw test, we traced the issue to the BCM. It wasn’t putting the other modules to sleep, causing a constant power drain. Before assuming you have a bad battery, check for inconsistent electrical behavior—that’s a classic sign the BCM is the real problem.”
Why Our 2008-2012 Express 3500 BCM is the Right Choice
- ✔ VIN-Specific Programming: We flash the module with your van’s exact VIN, ensuring all factory-installed options work correctly from the moment you plug it in.
- ✔ Latest GM Software: Your BCM comes loaded with the most recent software updates from General Motors, correcting known bugs and improving performance.
- ✔ Eliminate Common Failures: This module is the definitive fix for a wide range of frustrating electrical symptoms, including:
- Intermittent or non-functional power windows, door locks, and interior lights.
- Erratic dashboard warnings or gauge behavior.
- Security system faults that cause a no-start condition.
- Communication errors with other vehicle modules (DTC U-codes).
- ✔ Skip the Dealership: Save hundreds of dollars and significant downtime by avoiding dealer-only programming fees and scheduling hassles.
Plug-and-Play Installation Guide
Replacing the BCM is a manageable job for a confident DIYer. In most Express vans, it’s located in the center dash area.
- Safety First: Disconnect the negative battery terminal and wait 10-15 minutes for all systems to power down completely.
- Access the Module: Carefully remove the necessary dash panels to gain access to the BCM.
- Disconnect and Remove: Unplug the electrical connectors from the old BCM. They have locking tabs, so be gentle. Then, unbolt or unclip the old module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM and securely reconnect all electrical connectors.
- Reconnect Power: Re-attach the negative battery terminal.
Important Post-Installation Steps
To finalize the installation and ensure 100% proper function, a few additional procedures are required. These steps are critical for safety and system integration and must be performed with a compatible, high-level diagnostic scan tool.
- Airbag System Reset: You must perform the ‘Setup SDM Primary Key in BCM’ procedure. This synchronizes the new BCM with the airbag module (SDM) and will clear the airbag warning light on the dash.
- Brake Pedal Position Sensor Relearn: Some vehicles require the Brake Pedal Position (BPP) sensor to be recalibrated. This ensures the brake lights and stability control systems function correctly.
Guaranteed Fitment & Part Number Compatibility
This 2008-2012 Express 3500 BCM is a direct replacement for part number 25910474 and is also compatible with a wide range of other GM vehicles and part numbers. Please verify your vehicle is on the list below. This module replaces 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
This part will fit these makes and models with these options: ACADIA 07-12, 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.