Restore Full Electrical Function to Your GM Vehicle
Is your 2008-2012 Express 1500 Van acting possessed? Flickering lights, malfunctioning power windows, a security system that won’t cooperate, or even a frustrating no-start condition can all point to one culprit: a failing Body Control Module (BCM). As the central nervous system for your vehicle’s body electronics, the BCM’s health is critical. When it fails, it can create a cascade of confusing and unpredictable problems. This isn’t just an inconvenience; it can be a serious safety issue. For over 20 years, I’ve seen countless vehicles sidelined by these exact symptoms, and the solution is often simpler and more affordable than a trip to the dealership.
This replacement BCM, compatible with part number 15276271 and many others, is your direct-fit solution. But we go a step further with our professional Cloning Service. Instead of you needing to pay for expensive dealership programming, we transfer the critical data from your original module to this replacement unit. This means your vehicle’s specific settings, key information, and mileage are preserved. The result is a truly plug-and-play module, programmed with the latest GM software updates and ready for installation right out of the box. Simply send us your original BCM, and we’ll handle the rest, returning both your original and the ready-to-install replacement to you.
Common Signs of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, or interior lights.
- ✔ Erratic instrument cluster behavior, with gauges dropping out or warning lights appearing randomly.
- ✔ The security or anti-theft system preventing the vehicle from starting.
- ✔ Communication error codes, such as U0140 (Lost Communication With Body Control Module).
- ✔ Headlights, taillights, or turn signals working incorrectly or not at all.
- ✔ Problems with the radio or climate control systems.
Case Study: A Tricky Diagnosis
A customer brought in a 2011 Savana work van with a ghost problem. The battery would be dead every few days. We checked for parasitic draws and found a significant one, but couldn’t pinpoint the source. The lights would sometimes stay on after the van was shut off, and the radio would occasionally power on by itself. After ruling out the alternator and battery, we hooked up a high-end scanner and monitored the network. The BCM was intermittently sending wake-up signals to other modules, causing the drain. A failing internal relay inside the BCM was the culprit. Swapping in a cloned BCM solved the parasitic draw and all the other strange electrical issues in one shot, saving the owner from replacing a fleet vehicle.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the BCM: On most Express and Savana vans, the BCM is located in the center dash area. You may need to remove a few trim panels to gain access. For other 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 need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Seat the replacement BCM into the mounting bracket and securely plug in all the electrical connectors. You should hear a ‘click’ as they lock into place.
- ✔ Reconnect Power: Re-attach the negative battery terminal and tighten it securely.
- ✔ Test Functionality: Start the vehicle and test all body functions: lights, windows, locks, wipers, and the instrument cluster to ensure everything is operating correctly.
Important Post-Installation Notes
Thanks to our cloning service, most additional programming is eliminated. However, in some cases, you may encounter the following:
- Airbag System Sync: If the airbag light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional scan tool to sync the modules.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn might be necessary for correct brake light and traction control operation.
Disclaimer: Vehicle systems vary. Always have a factory service manual available for your specific model or consult with a qualified automotive technician.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of GM vehicles and supersedes multiple part numbers, ensuring broad compatibility. Please match your part number to the list below or verify fitment with your vehicle’s year, make, and model from the list.
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
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.
Why is your cloning service better than just programming to my VIN?
Cloning transfers all the original data, including security information and vehicle-specific options that VIN programming can sometimes miss. This makes the installation seamless and avoids potential conflicts with other modules in your vehicle, providing a true plug-and-play experience.
What do I need to send you?
After you place your order, you will need to ship your original Body Control Module to us. We will provide detailed shipping instructions. We perform the cloning service and then ship both your original module and the ready-to-install replacement back to you.
How long does the cloning process take?
We typically complete the cloning service within 1-2 business days of receiving your original module. Shipping times will vary based on your location and chosen shipping method.
Do I get my old BCM back?
Yes, absolutely. We always return your original module along with the newly programmed replacement unit. We do not keep your core.
Is this a difficult part for a DIYer to replace?
For most models like the Express van, the BCM is accessible behind dash panels. It’s a matter of unplugging connectors and removing a few bolts. If you are comfortable removing interior trim pieces, this is a very manageable job for an experienced DIYer.