Restore Full Functionality to Your GM Vehicle
Is your Chevrolet Express or other GM vehicle acting possessed? Flickering dashboard lights, power windows and locks with a mind of their own, or a security system that randomly engages are classic signs of a failing Body Control Module (BCM). As the central computer for your vehicle’s comfort and convenience features, a faulty BCM can cause a cascade of frustrating and seemingly unrelated electrical issues. I’ve seen it countless times in my 20+ years on the shop floor: a work van that won’t start reliably or a family SUV with erratic interior lights, all traced back to this one critical component.
This isn’t just a replacement part; it’s a comprehensive solution. We provide a fully tested BCM that comes with a professional Cloning Service. Simply provide us with your vehicle’s VIN after purchase, and our technicians will program the module with the latest GM software specific to your vehicle’s configuration. This means you can bypass the expensive and time-consuming trip to the dealership for programming. You get a part that’s ready to install right out of the box, getting you or your client back on the road quickly and confidently.
A Technician’s Notebook: The Intermittent Gremlin
A local contractor brought in his 2011 Express 2500, complaining of intermittent no-starts and the radio sometimes not turning off after he removed the key. His battery and alternator tested fine. We hooked up the scan tool and found a slew of U-codes (communication errors) pointing to the BCM. These intermittent issues are typical when the BCM’s internal processors or solder joints start to fail. Instead of a costly diagnostic rabbit hole, we swapped in a VIN-programmed BCM. The communication errors vanished, and all body functions returned to normal. It’s a textbook example of how a failing 2008-2012 Express 2500 BCM can mimic other problems, making accurate diagnosis key.
Common Signs of a Failing BCM
If you’re experiencing any of the following, a faulty Body Control Module is a likely culprit. A failing BCM can often set communication-related Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or other U-codes.
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The vehicle’s security system engaging randomly or preventing the engine from starting.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Wipers operating intermittently or at incorrect speeds.
- ✔ Instrument cluster gauges behaving erratically or going dark.
- ✔ Problems with the keyless entry or remote start systems.
A Straightforward Guide to BCM Replacement
For the DIY enthusiast or professional mechanic, installing this pre-programmed BCM is a manageable job. For the 2008-2012 Express 2500 Van, the BCM is typically located in the center dash area.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the Module: Access the BCM. On many Express and Savana vans, this involves removing trim panels around the center console or lower dashboard to expose the module.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. Note their orientation. Then, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount the new, pre-programmed BCM in the same location. Securely reconnect all electrical connectors, ensuring they click into place.
- Reconnect Power: Re-attach the negative battery terminal.
- Perform Relearn Procedures: Start the vehicle. In some cases, 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 capable scan tool. A ‘Brake Pedal Position Relearn’ may also be necessary for proper brake light and stability control function.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Verified Vehicle Compatibility
This BCM is a direct-fit replacement for a wide range of GM vehicles and is compatible with numerous part numbers. Please verify your original part number against this list to ensure proper fitment.
Replaces 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
Fits Models Including:
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
Frequently Asked Questions
How does the VIN programming (cloning) service work?
After you place your order, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). Our technicians use this VIN to load the exact software and vehicle-specific options from GM’s database onto the BCM before we ship it to you. This ensures it communicates correctly with your vehicle’s other modules.
Do I need to send my old BCM to you?
No, this is a cloning service, not a repair service. We program a replacement module for you. Your original module is always returned to you along with the programmed replacement unit we send. We do not keep your original part.
Is this a difficult part to install myself?
For someone with moderate mechanical skill, it’s a very manageable job. The main challenge is typically accessing the BCM behind the dashboard panels. Since our module is pre-programmed, you eliminate the most complex step, which is the software configuration.
What if my airbag light comes on after installation?
This is a possibility. If the airbag (SRS) warning light illuminates, it means the new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be done by any professional shop with a high-level diagnostic scan tool.
Will this fix all of my vehicle’s electrical problems?
This part will fix all issues directly caused by a failing BCM. However, if your issues are due to bad wiring, faulty sensors, or other failing modules, this part will not resolve them. A proper diagnosis is always the best first step. Our 2008-2012 Express 2500 BCM is a reliable solution for BCM-specific failures.