Restore Full Functionality to Your GM Vehicle
If you’re dealing with a cascade of bizarre electrical problems in your 2010 Chevrolet Avalanche 1500—like power windows with a mind of their own, intermittent starting issues, or a dashboard lit up with random warning lights—the culprit is very likely a failing Body Control Module (BCM). As the central nervous system for your vehicle’s body electronics, a faulty BCM can create frustrating and hard-to-diagnose symptoms. This isn’t just an inconvenience; it can affect vehicle security and safety systems. This replacement BCM, programmed specifically to your truck’s VIN, is the definitive solution to get your vehicle operating correctly again.
A Technician’s Notebook: The Ghost in the Machine
I remember a 2010 Tahoe that came into my shop a few years back. The owner was at his wit’s end. One day the radio wouldn’t turn off even with the key out, the next the dome lights would flicker constantly, and sometimes the security light would stay on, preventing it from starting. He’d already replaced the battery and checked all the fuses. A scan showed a dozen intermittent communication codes, including the dreaded U0140 (Lost Communication With Body Control Module). After verifying the main power and ground connections to the BCM were solid, it was clear the module itself was failing internally. Swapping in a VIN-programmed 2010 Avalanche 1500 BCM (the Tahoe uses the same platform) solved every single issue instantly. These modules manage so many systems that when they fail, they can make a perfectly good truck feel like it’s haunted.
Is Your Vehicle Showing These Symptoms?
- ✔ Power windows, door locks, or mirrors behaving erratically or not working at all.
- ✔ Interior or exterior lights flickering, staying on, or failing to turn on.
- ✔ The security system preventing the engine from starting or the key fob not responding.
- ✔ Unexplained battery drain that leaves you with a dead battery overnight.
- ✔ Warning lights for the airbag (SRS), anti-lock brakes (ABS), or traction control system appearing on the dash.
- ✔ Diagnostic trouble codes (DTCs) such as U0140, U0155, or various B-series codes related to body electronics.
How Our Cloning Service Works
Forget expensive dealership visits and the hassle of coordinating programming. Our service simplifies the repair process. When you purchase this module, you provide us with your vehicle’s 17-digit VIN. Our technicians then use this information to flash the module with the latest GM-certified software specific to your 2010 Avalanche 1500’s factory-installed options. This ensures that the replacement BCM is a perfect electronic match for your truck, restoring all functions as the manufacturer intended. We handle the complex part so you can focus on the straightforward installation.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait about 10-15 minutes to allow all systems to power down completely.
- ✔ Locate the BCM: In the 2010 Avalanche 1500, the BCM is typically located under the driver’s side of the dashboard, near the steering column. You may need to remove a lower dash panel for access.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be pressed to release. Once all connectors are unplugged, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM into the 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 ignition to the ‘On’ position (without starting the engine) and test your lights, windows, locks, and other accessories to confirm they are working correctly.
Important Post-Installation Steps
While our programming handles the heavy lifting, some GM vehicles require on-vehicle relearn procedures to sync all systems. These are not always necessary but are important to be aware of:
- 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 ensures the BCM and the airbag system are communicating correctly.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure accurate brake light operation and to keep the traction control system happy.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Verified Compatibility for Your GM Vehicle
This BCM is a direct replacement for part number 25847588 and a wide range of other interchangeable part numbers. It is guaranteed to fit and function in the following vehicles, provided the part number on your original module matches one in our list:
ACADIA 07-12 (LH dash)
CAPRICE 11-13
CAPTIVA SPORT 12 (center dash), ID 20921435, 20921436, or 22860591
CTS 08-13 (LH dash)
DTS 06-11 (RH center dash)
ENCLAVE 08-12 (LH dash)
EQUINOX 07-09 (center dash)
ESCALADE 10 (under steering column), ID 25892622 or 20815898
ESCALADE ESV 10 (under steering column), ID 25892622 or 20815898
ESCALADE EXT 10 (under steering column), ID 25892622
EXPRESS VANS 08-12 (BCM in center dash)
G8 08-09 (center dash)
HUMMER H2 08-09 (LH firewall)
IMPALA 06-13 (LH dash)
LUCERNE 06-11 (right side dash)
MONTE CARLO 06-07 (LH steering column)
OUTLOOK 07-10 (center dash)
SAVANA VANS 08-12 (BCM in center dash)
SRX 07-09 (LH dash)
STS 10 (center dash)
SUBURBAN 1500 10 (under steering column), ID 25892622 or 20815898
TAHOE 10 (under steering column), ID 25892622 or 20815898
TORRENT 07-09 (center dash)
TRAVERSE 09-12 (LH dash)
VUE 08-10 (center dash)
YUKON 10 (under steering column), ID 25892622 or 20815898
YUKON XL 1500 10 (under steering column), ID 20815898 or 25892622
Frequently Asked Questions
How do I provide my VIN?
After you complete your purchase, you will receive an email prompting you to reply with your vehicle’s 17-digit VIN. We cannot program and ship your module without it.
Is this a simple plug-and-play part?
It is almost plug-and-play. We handle all the off-board programming. However, as noted above, some vehicles may require a simple on-vehicle relearn procedure for systems like the airbags or brake pedal position sensor. This is a standard part of many modern electronic component replacements.
Do I need to send my original BCM to you?
No. This service is for a replacement BCM that we program to your VIN. Your original module is always returned to you along with the programmed replacement unit. We do not keep the core.
What tools are needed for the installation?
For most GM trucks and SUVs, you will only need basic hand tools, such as a socket set and a trim removal tool to access the BCM under the dashboard. No special electronic tools are required for the physical installation.
Will this fix my ‘Service Airbag’ light?
If the airbag light is on due to a communication fault with a bad BCM, this will resolve the root cause. However, you may still need to perform the ‘Setup SDM Primary Key’ procedure with a compatible scan tool to clear the light after installation.
What if this doesn’t fix my problem?
While this 2010 Avalanche 1500 BCM is a common solution for widespread electrical issues, we always recommend proper diagnostics. If your problems persist after installation, the fault may lie in wiring, connectors, or another module. We are here to help you diagnose the issue correctly.