Restore Full Functionality to Your GM Vehicle
If you’re dealing with bizarre electrical issues in your 2008-2012 Express 2500 Van or another compatible GM vehicle, a failing Body Control Module (BCM) is often the culprit. As the central command center for your vehicle’s body electronics, a faulty BCM can create a cascade of frustrating problems. From power windows that won’t budge to a security light that prevents your engine from starting, these symptoms can bring your work or daily life to a halt. This isn’t just an inconvenience; it’s a reliability issue that needs a solid, permanent fix.
This replacement Body Control Module is the definitive solution. It arrives at your door pre-programmed to your vehicle’s specific VIN, loaded with the latest factory software from GM. This critical step eliminates the need for an expensive trip to the dealership for programming. You get a component that is ready for installation right out of the box, designed to restore the precise electronic functions your vehicle had when it was new. By providing your VIN at checkout, you ensure a seamless integration with your van’s existing systems.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security or anti-theft light stays on, often causing a no-start condition.
- ✔ The horn sounding unexpectedly or not working when pressed.
- ✔ Inaccurate gauge readings or a completely dead instrument cluster.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or other U-series codes.
- ✔ Wipers activating on their own or not turning off.
A Technician’s Notebook
I once had a 2011 Express 2500 work van come into my bay with a truly baffling set of symptoms. The driver reported that on rainy days, the wipers would stop working, the radio would shut off, and the power door locks would cycle on their own. On dry days, it was fine. After hours of chasing wires and checking grounds, we found microscopic corrosion on the BCM’s circuit board from a minor windshield leak. A replacement BCM fixed everything instantly. This pre-programmed unit saves you that diagnostic headache; it’s the go-to solution when multiple, unrelated electronic systems start failing at once.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait about 10 minutes to allow all systems to power down completely.
- ✔ Locate the BCM: On most Express and Savana vans, the BCM is located in the center dash area. On other GM models, it may be under the driver’s side dash or near the steering column. A quick search for your specific model will confirm the location.
- ✔ Remove the Old Module: Carefully unplug all electrical connectors from the 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 exact same position as the old one. Securely plug in all the electrical connectors, ensuring each one clicks into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting the engine) and test the functions: power windows, locks, lights, and wipers.
- ✔ Post-Installation Checks: Start the vehicle. Note that for some models, additional relearn procedures may be necessary as detailed below.
Important Post-Installation Procedures
While this BCM is programmed for your VIN, certain vehicle systems may require a ‘handshake’ with the new module after installation. These are not signs of a defective part but a standard security and calibration step for modern vehicles.
- ✔ Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- ✔ Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be required to ensure correct brake light operation and to keep the traction control system happy.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a professional technician if you are unsure about any step.
Will This Fit My Vehicle?
This BCM is a direct replacement for a wide range of General Motors vehicles and supersedes multiple part numbers. Please match your original part number to the list below or confirm your vehicle is listed in our compatibility chart.
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
Known Compatible Models:
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
What does a Body Control Module (BCM) do?
The BCM is a computer that manages many of your vehicle’s non-engine-related functions. This includes power windows, door locks, interior/exterior lighting, wipers, the security system, and the instrument cluster.
How does the programming service work?
After you place your order, you will need to provide us with your vehicle’s 17-digit VIN. Our technicians use this VIN to load the correct, most up-to-date GM software onto the BCM before shipping it to you. This ensures it works correctly with your specific vehicle options.
Do I need to send my original module to you?
No. This is not a repair service for your old part. We program a replacement BCM and ship it to you. Per our policy, your original module is always returned to you along with the programmed replacement unit; we do not keep the core.
Is this a simple plug-and-play installation?
For most vehicles, yes. Because it comes pre-programmed, the physical installation is plug-and-play. However, as noted in our description, some models may require a simple ‘relearn’ or ‘sync’ procedure with a scan tool for systems like the airbags to fully communicate with the new module.
How do I find my BCM’s part number?
The part number is printed on a sticker on the case of your original BCM. You will need to access the module in your vehicle to read it. However, our module replaces a long list of part numbers, so matching your vehicle model and year is often sufficient.