Restore Full Electrical Function to Your 2010 Chevrolet Tahoe
Are you chasing down frustrating electrical gremlins in your GM truck or SUV? Flickering interior lights, power windows with a mind of their own, or a security light that won’t turn off are classic signs of 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 problems, sometimes even preventing your vehicle from starting. I’ve spent two decades diagnosing these exact issues, and I can tell you that swapping the module is often the only permanent fix.
This isn’t just a replacement part; it’s a complete solution. We offer a professional Cloning Service for this 2010 Tahoe Body Control Module. Simply provide your vehicle’s VIN after purchase, and our technicians will transfer all the critical, vehicle-specific data from your original BCM to this replacement unit. It arrives at your door flashed with the latest GM software updates and ready for installation, saving you a costly trip to the dealership for programming.
From the Diagnostic Bay: The Tahoe That Wouldn’t Start
I remember a 2010 Tahoe that was towed into my shop. The owner had replaced the battery and alternator, but it still had an intermittent no-start condition and the radio would randomly turn off. A quick scan showed a slew of communication codes, specifically a U0140 (Lost Communication With Body Control Module). Instead of just throwing parts at it, we checked the power and ground feeds to the BCM under the steering column—they were solid. The problem was internal to the module itself. A cloned BCM like this one had the truck running perfectly in under an hour, without any need for a dealer’s expensive diagnostic computer. It’s a common failure, and this is the right way to fix it.
Is Your GM Vehicle Showing These BCM Failure Signs?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, this module is your likely solution:
- ✔ 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 or anti-theft light is illuminated on the dash.
- ✔ Intermittent no-start or no-crank conditions.
- ✔ Gauges on the instrument cluster behaving erratically or not working.
- ✔ Diagnostic Trouble Codes (DTCs) related to communication, such as U0140, U0155, or B1001.
- ✔ Horn, wipers, or other accessories activating unexpectedly.
A Straightforward Guide to BCM Installation
With our pre-programmed module, installation is manageable for a DIYer with basic tools. Here’s a general overview for a 2010 Tahoe:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on electrical components.
- Locate the BCM: On most GMT900 platform trucks like the Tahoe, the BCM is 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 depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount the new, programmed BCM in the same location and securely reconnect all electrical harnesses. Ensure they click into place.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Relearns: Start the vehicle and check for any warning lights. As noted in our Post-Installation section, an Airbag System Sync or Brake Pedal Position Relearn may be necessary using a capable scan tool.
Post-Installation Procedures & Core Policy
This service is designed to be as simple as possible. After installation, certain systems may require recalibration. If the airbag light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. A Brake Pedal Position Relearn may also be required for proper brake light and stability control function. Our cloning service means you keep your original module; we will ship it back to you along with your ready-to-install replacement. We do not keep cores.
Verified Vehicle Compatibility List
This module, part number 25847589, is a direct replacement for a wide range of GM vehicles and supersedes many other part numbers. Please verify your vehicle is on this list. Note that location can vary by model.
- Acadia (07-12): LH dash
- Avalanche 1500 (10): Under steering column (ID 25892622)
- Caprice (11-13): Body Control (BCM)
- Captiva Sport (12): Center dash (ID 20921435, 20921436, 22860591)
- CTS (08-13): LH/RH dash
- DTS (06-11): RH center dash
- Enclave (08-12): LH dash
- Equinox (07-09): Center dash
- Escalade / ESV / EXT (10): Under steering column (ID 25892622, 20815898)
- Express / Savana Vans (08-12): Center dash (Various engines)
- 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
- SRX (07-09): LH dash
- STS (10): Center dash
- Suburban 1500 (10): Under steering column (ID 25892622, 20815898)
- Tahoe (10): Under steering column (ID 25892622, 20815898)
- Torrent (07-09): Center dash
- Traverse (09-12): LH dash
- Vue (08-10): Center dash
- Yukon / Yukon XL 1500 (10): Under steering column (ID 25892622, 20815898)
This module replaces the following 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.
What is a BCM cloning service?
What is a BCM cloning service?
Our cloning service involves transferring the unique, vehicle-specific configuration data (like key information, mileage, and options) from your original BCM to the replacement unit. This ensures the new module works seamlessly with your vehicle’s other systems without requiring a trip to the dealership for expensive programming.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will provide clear instructions on how to do this. We cannot program and ship the module without your VIN.
Do you keep my old BCM?
No. We always return your original BCM to you along with the newly programmed replacement unit. We do not require a core exchange for this service.
What if my airbag light comes on after installation?
This can happen occasionally. It means the new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). A professional technician will need to use a diagnostic scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure, which will sync the modules and turn off the light.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.