Tired of Bizarre Electrical Gremlins in Your GM Vehicle?
Are your power windows refusing to cooperate? Do your interior lights have a mind of their own? Maybe your dash is lit up with warning lights, or worse, the security system is preventing your vehicle from starting. If these frustrating symptoms sound familiar, you’re likely dealing with a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can cause a cascade of confusing and annoying problems. For over 20 years in the shop, I’ve seen how a bad GM Body Control Module can sideline a perfectly good car or truck, leaving owners stressed about expensive dealership repairs.
Forget the hassle and high cost of a dealership visit. Our professional cloning service is the most efficient and reliable solution to get your vehicle back to 100%. Simply send us your original BCM, and we will transfer all of its critical data—including your VIN, key information, and specific vehicle options—to this replacement unit. We then ship both modules back to you. The result is a true plug-and-play component, eliminating the need for expensive scan tools or programming appointments.
Case Study: A Tricky Diagnosis
A 2009 Chevy Express 3500 work van was brought to my bay with a complaint that was driving the owner crazy. The dome lights would flicker randomly, the power locks would cycle while driving, and occasionally, the van wouldn’t start, showing a security light on the dash. The initial scan showed a U0140 (Lost Communication With Body Control Module) code, but it was intermittent. After verifying the power and ground connections to the BCM were solid, we knew the module itself was failing internally. Instead of a costly new BCM and a day of programming at the dealer, we performed a cloning service. The customer had his van back the next day, fully operational, for a fraction of the dealer’s quote. This is the exact service we offer you.
Common Signs of a Failing GM Body Control Module
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ The security system light is illuminated, and the engine won’t crank or start.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Warning lights on the dashboard for the airbag (SRS) or traction control systems.
- ✔ Communication error codes, such as U0140, stored in other modules.
Your Straightforward BCM Installation Guide
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the BCM: Depending on your model, the BCM is typically located under the driver’s side dash, near the steering column, or behind a kick panel. The fitment list below provides specific locations.
- Remove the Old Module: Carefully unplug the electrical connectors. 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 your newly programmed BCM into the mounting bracket and securely plug in all the 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, etc.—to confirm the repair.
Important Post-Installation Information
In some cases, additional steps may be required after installation to ensure all systems communicate correctly. This is normal for modern vehicles.
- Airbag System Sync: If the airbag light is on after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure may be needed. This requires a professional-grade scan tool and syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control operation, a brake pedal position sensor relearn might be necessary.
Disclaimer: Procedures can vary. Always refer to a factory service manual or a qualified technician for your specific vehicle’s needs.
Verified Compatibility for Your Vehicle
This module is a direct replacement for part number 15819552 and interchanges with the following part numbers: 10382479, 15093910, 15276271, 15299986, 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. It fits a wide range of GM 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 Van 1500/2500/3500 08-12
- G8 08-09
- Hummer H2 08-09
- Impala 06-13
- Lucerne 06-11
- Monte Carlo 06-07
- Outlook 07-10
- Savana Van 1500/2500/3500 08-12
- SRX 07-09
- STS 10
- Suburban 1500 10
- Tahoe 10
- Torrent 07-09
- Traverse 09-12
- Vue 08-10
- Yukon / Yukon XL 1500 10
Frequently Asked Questions
How does the cloning service work?
After you purchase, we will provide instructions for shipping your original BCM to us. Our technicians will then extract the unique data and transfer it to the replacement module. We ship both your original module and the ready-to-install replacement back to you.
Why do you need my original BCM?
Your original BCM contains vital security information, key programming, mileage, and vehicle-specific options. Cloning this data is the only way to guarantee a seamless, plug-and-play installation without requiring further programming from a dealer.
Do I need to provide my VIN?
Yes, please provide your VIN at checkout. While the cloning process transfers all necessary data, the VIN helps us verify the correct software version and prepare the module for the cloning process.
What if my airbag light comes on after I install it?
This is not uncommon. It simply means the new BCM needs to be electronically ‘introduced’ to the airbag control module (SDM). A repair shop with a compatible scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Is this a difficult part for a DIYer to replace?
Physically replacing the BCM is generally straightforward for someone with basic mechanical skills. It’s typically held in place by a few bolts or clips and has several electrical connectors. The main challenge is usually accessing it under the dash. Our cloning service eliminates the most difficult part: the software programming.