End the Electrical Gremlins in Your GM Van or SUV
Is your 2008-2012 Express 3500 Van acting possessed? Flickering lights, malfunctioning power windows or locks, a security light that won’t turn off, or even a frustrating no-start condition are all classic signs of a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can turn a reliable workhorse into a source of daily frustration. This isn’t just an inconvenience; it can impact your work, safety, and peace of mind. Stop chasing down phantom electrical issues and get a definitive, reliable solution.
We offer a straightforward fix: a replacement BCM featuring our professional cloning service. This isn’t a generic, off-the-shelf part that requires an expensive trip to the dealership for programming. Instead, you send us your original BCM, and we transfer all of its critical data—including key information and vehicle-specific options—to this replacement unit. The result is a true plug-and-play module, programmed with the latest GM software updates and matched perfectly to your vehicle’s VIN. You get back on the road faster, with less downtime and no surprise programming fees.
Case Study: A Tricky Diagnosis
I remember a 2011 Savana 3500 from a local plumbing company that came into my bay with a bizarre complaint: the dome lights would stay on, draining the battery overnight, but the power locks only worked intermittently. The tech had already replaced the battery and checked all the door jamb switches. After connecting my scan tool, I noticed communication errors with the BCM (U0140). Instead of a costly new module and hours of programming at the dealer, we opted for a cloned BCM. We sent the original module out, got the programmed replacement back in two days, and installed it in under 30 minutes. The van was back in service the same day, saving the company hundreds in labor and lost work time. This is the exact, efficient service we provide to you.
Is Your Vehicle Showing These Symptoms?
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights staying on or not turning on.
- ✔ The security or anti-theft light is illuminated on the dash, causing a no-start condition.
- ✔ The horn sounds randomly or doesn’t work when pressed.
- ✔ False warnings appearing on the driver information center (e.g., “Service Theft System”).
- ✔ Communication fault codes, such as U0140, stored in other modules.
- ✔ Inconsistent A/C compressor clutch engagement.
A Straightforward Guide to Installation
Installing your programmed BCM is a manageable job for a DIY enthusiast or any professional technician. In most Express and Savana vans, the BCM is located behind the center dash trim.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Access the Module: Carefully remove the necessary dash trim panels to gain access to the BCM. It’s typically mounted to a bracket in the center dash area.
- Disconnect and Remove: 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 BCM: Mount your new, programmed BCM in the same location and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—lights, locks, windows, horn, etc.—to confirm proper operation.
- Perform Relearns (If Needed): If the airbag light is on or brake lights are not functioning correctly, proceed with the necessary post-installation procedures outlined below.
Important Post-Installation Notes
Our cloning service handles the vast majority of the setup, but some vehicle systems may require a quick sync after installation. This is normal and ensures all safety systems communicate correctly.
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible professional scan tool. This is only necessary if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be needed to ensure proper brake light and stability control function.
Disclaimer: Always consult a factory service manual or a qualified professional for procedures specific to your vehicle’s year and model.
Verified Vehicle Compatibility
This BCM is a direct replacement for part number 15921352 and many other interchangeable part numbers. It is compatible with a wide range of GM vehicles. Please verify your part number or contact us with your VIN to confirm fitment.
Fits Models Including:
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 / ESV / EXT (10), EXPRESS 1500/2500/3500 VAN (08-12), G8 (08-09), HUMMER H2 (08-09), IMPALA (06-13), LUCERNE (06-11), MONTE CARLO (06-07), OUTLOOK (07-10), SAVANA 1500/2500/3500 VAN (08-12), SRX (07-09), STS (10), SUBURBAN 1500 (10), TAHOE (10), TORRENT (07-09), TRAVERSE (09-12), VUE (08-10), YUKON / XL 1500 (10). Please check the detailed fitment list for specific options and IDs.
Frequently Asked Questions
Frequently Asked Questions
How does the cloning service work?
After you place your order, you will send us your vehicle’s original Body Control Module. We then use specialized equipment to extract the existing programming and vehicle-specific data and flash it onto the replacement module. This ensures it works seamlessly with your existing keys and vehicle options.
Do I have to send you my original BCM?
Yes. For the cloning service to be successful, we must have your original module to transfer the data. We will return your original module along with the newly programmed replacement unit.
Will I need a dealership to program this BCM after I install it?
No. The entire point of our cloning service is to eliminate the need for dealer programming. The module arrives ready for installation, saving you significant time and money.
What if my airbag light comes on after installation?
In some cases, the new BCM needs to be synced with the airbag system (SDM). This is a simple ‘Setup SDM Primary Key’ procedure that can be performed by any competent repair shop with a professional-grade scan tool.
Is this a difficult part to install myself?
For someone with basic mechanical skills and tools, this is a very manageable job. The primary challenge is accessing the module, which is typically located behind the dash. Following our installation guide should make the process clear.
How do I know if this is the correct part for my vehicle?
The best way is to match the part number from your original BCM to the numbers listed in our compatibility section. If you are unsure, please provide us with your VIN before ordering, and we will verify compatibility for you.