Tired of Electrical Gremlins in Your GM Van or SUV?
As a technician with over two decades of experience, I’ve seen firsthand how a failing Body Control Module (BCM) can turn a reliable workhorse like a 2008-2012 Express 3500 Van into a source of constant frustration. You’re dealing with bizarre electrical issues—power locks with a mind of their own, interior lights that won’t turn off, or a security light that prevents your vehicle from starting. It’s not just an annoyance; it’s a reliability problem that can cost you time and money. This isn’t just a part; it’s the central command for your vehicle’s body electronics, and when it fails, chaos ensues.
We offer a straightforward, dependable solution. This BCM, compatible with part number 15276271 and many others, is prepared specifically for your vehicle using our professional cloning service. This means we transfer the exact data from your original module to this replacement unit. The result? A simple swap that avoids costly dealership programming and complex setup procedures. You get a part that works correctly right out of the box, restoring the functions you depend on every day.
A Technician’s Notebook: The Case of the Intermittent No-Start
A local delivery company brought in their Express 3500. The driver reported that some mornings, the van just wouldn’t start—the security light would flash, and the engine wouldn’t crank. Other times, it worked perfectly. They had already replaced the battery and checked the ignition switch. After hooking up my scan tool, I found a slew of ‘U’ codes, specifically a U0140 – Lost Communication with Body Control Module. Instead of a constant fault, it was intermittent. Experience told me this pointed to an internal BCM failure, likely a cracked solder joint on the main board that would lose connection as temperatures changed. We performed a cloning service onto a replacement BCM. The van fired up instantly, and the communication codes were gone for good. The cloning saved them a trip to the dealer and got their van back in service the next day.
Common Signs of a Failing GM BCM
If your vehicle is exhibiting these symptoms, a faulty BCM is the most likely culprit. A failing module can often set communication codes like U0140, U0155, or B1001.
- âś” Power windows, door locks, or mirrors operating erratically or not at all.
- âś” Interior or exterior lights staying on or not turning on.
- âś” The anti-theft or security system light is illuminated, causing a no-start condition.
- âś” The horn honking randomly or not working when pressed.
- âś” Inaccurate gauge readings on the instrument cluster.
- âś” Warning lights for ABS, Airbag, or Traction Control appearing without a clear cause.
Your Step-by-Step BCM Swap Guide
Installing your cloned BCM is a manageable job for a confident DIYer or any professional technician. Here’s a general guide:
- 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 BCM: On the Express and Savana vans, the BCM is typically located in the center dash area, often behind the lower instrument panel or glove box. For other models, it may be under the driver’s side dash or near the steering column.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be pressed to release. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the Replacement: Mount the new, cloned BCM in the same position and securely reconnect all electrical harnesses. Ensure each connector clicks into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, lights, wipers, etc.—to confirm proper operation.
Important Post-Installation Information
Our cloning service handles the critical programming, but some vehicle systems may require a simple ‘handshake’ after installation. Please be aware of the following:
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the modules and is not something that can be cleared by disconnecting the battery.
- Brake Pedal Position (BPP) Relearn: On some models, a BPP sensor relearn may be necessary to ensure brake lights and stability control systems function correctly.
Disclaimer: Vehicle systems vary. For procedures specific to your exact model, we always recommend consulting a factory service manual or a certified technician.
Confirmed Vehicle Compatibility List
This module is a direct-fit replacement for a wide range of GM vehicles. Please verify your part number or match your vehicle from the list below. Our cloning service ensures it will function correctly for your specific application.
EXPRESS 2500 VAN 10 Body Control (BCM); (center dash), 6.0L
EXPRESS 3500 VAN 08-09 Body Control (BCM); (center dash)
SAVANA 3500 VAN 10 Body Control (BCM); (center dash), 6.6L, VIN 6 (8th digit, opt LMM)
IMPALA 06-12 Body Control (BCM); (LH dash)
SAVANA 2500 VAN 10 Body Control (BCM); (center dash), 4.8L
ACADIA 07-12 Body Control (BCM); (LH dash)
MONTE CARLO 06-07 Body Control (BCM); (LH steering column)
TAHOE 10 Body Control (BCM); (under steering column), ID 25892622
TRAVERSE 09-12 Body Control (BCM); (LH dash)
EXPRESS 3500 VAN 10 Body Control (BCM); (center dash), 6.6L, VIN 6 (8th digit, opt LMM)
YUKON 10 Body Control (BCM); (under steering column), ID 25892622
SAVANA 2500 VAN 11-12 Body Control (BCM); (center dash)
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 20815898
CAPTIVA SPORT 12 Body Control (BCM); (center dash), ID 20921435
CAPTIVA SPORT 12 Body Control (BCM); (center dash), ID 22860591
DTS 06-11 Body Control (BCM); (RH center dash)
OUTLOOK 07-10 Body Control (BCM); (center dash)
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 25892622
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25892622
SAVANA 1500 VAN 08-12 Body Control (BCM); (center dash)
EXPRESS 2500 VAN 11-12 Body Control (BCM)
EXPRESS 1500 VAN 08-12 Body Control (BCM); (center dash)
STS 10 Body Control (BCM); center dash
SAVANA 3500 VAN 08-09 Body Control (BCM); (center dash)
TORRENT 07-09 Body Control (BCM); (center dash)
SAVANA 2500 VAN 10 Body Control (BCM); (center dash), 6.0L
TAHOE 10 Body Control (BCM); (under steering column), ID 20815898
CTS 08-13 Body Control (BCM); LH dash
CAPTIVA SPORT 12 Body Control (BCM); (center dash), ID 20921436
EXPRESS 3500 VAN 10 Body Control (BCM); (center dash), 6.0L
G8 08-09 Body Control (BCM); (center dash)
IMPALA 13 Body Control (BCM); (LH dash), ID 22820315
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 20815898
AVALANCHE 1500 10 Body Control (BCM); (under steering column), ID 25892622
EXPRESS 2500 VAN 10 Body Control (BCM); (center dash), 4.8L
EXPRESS 2500 VAN 10 Body Control (BCM); (center dash), 6.6L, VIN 6 (8th digit, opt LMM)
YUKON 10 Body Control (BCM); (under steering column), ID 20815898
ESCALADE 10 Body Control (BCM); (under steering column), ID 25892622
LUCERNE 06-11 Body Control (BCM); (right side dash)
CTS 08 Body Control (BCM); RH dash
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 25892622
EXPRESS 3500 VAN 10 Body Control (BCM); (center dash), 4.8L
SAVANA 2500 VAN 08-09 Body Control (BCM); (center dash)
SAVANA 3500 VAN 10 Body Control (BCM); (center dash), 4.8L
SAVANA 3500 VAN 10 Body Control (BCM); (center dash), 6.0L
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 25892622
ESCALADE 10 Body Control (BCM); (under steering column), ID 20815898
SRX 07-09 Body Control (BCM); LH dash
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 20815898
EXPRESS 3500 VAN 11-12 Body Control (BCM)
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
SAVANA 3500 VAN 11-12 Body Control (BCM)
VUE 08-10 Body Control (BCM); (center dash)
CAPRICE 11-13 Body Control (BCM)
ENCLAVE 08-12 Body Control (BCM); (LH dash)
EXPRESS 2500 VAN 08-09 Body Control (BCM); (center dash)
SAVANA 2500 VAN 10 Body Control (BCM); (center dash), 6.6L, VIN 6 (8th digit, opt LMM)
Frequently Asked Questions
How does the cloning service work?
After you place your order, we will provide instructions for shipping your original BCM to us. Our technicians will then extract the vehicle-specific data (including VIN, mileage, and key information) and flash it onto the replacement module. We then ship both your original module and the ready-to-install replacement back to you.
Why do you need my original BCM? Can’t you just program it with my VIN?
Cloning is superior to simple VIN programming because it transfers all the nuanced data related to your vehicle’s specific options and security parameters. This ensures seamless integration and prevents compatibility issues that can arise from a generic VIN flash, making the installation truly plug-and-play.
Do you keep my old module?
No. We always return your original module along with the programmed replacement unit. You are not charged a core fee because we require your module to perform the service.
What if I don’t have my original module?
This service requires your original BCM to transfer the data. If your module is lost or destroyed, please contact us before ordering, as we may have alternative solutions available.
Is any other programming required after I install it?
In most cases, no. Our cloning service handles the necessary programming. However, as noted above, some GM vehicles may require a quick ‘relearn’ or ‘sync’ procedure for the airbag or brake pedal position sensor, which requires a capable scan tool.