Restore Control and End Electrical Frustration
Are you chasing electrical gremlins in your 2010 Chevrolet Avalanche? Flickering lights, power windows with a mind of their own, or a security system that randomly goes off can be incredibly frustrating. These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your truck’s comfort and convenience features. When it starts to fail, it can make your reliable truck feel unpredictable. This isn’t a problem you have to live with, and the fix doesn’t require an expensive trip to the dealership.
We offer a straightforward and reliable solution: a replacement Body Control Module complete with a Cloning Service. This isn’t just a part in a box. We take the essential data from your original, faulty BCM and transfer it directly to this replacement unit. The result? A module that is truly plug-and-play, arriving at your door ready for installation with no additional programming required. This process ensures all your vehicle’s specific options and security information are preserved, getting you back on the road with confidence.
A Technician’s Notebook
I remember a 2010 Tahoe—a vehicle that shares its platform with the Avalanche—that came into the shop with a laundry list of bizarre symptoms. The owner was at his wit’s end. The dome lights would stay on, the radio presets would vanish, and the power locks worked intermittently. He’d already replaced the battery and checked all the fuses. After connecting my scan tool, I saw a flood of U-codes (U0140, U0155), indicating a loss of communication with the BCM. This confirmed my suspicion. Instead of a costly new module and hours of programming at the dealer, we used a cloned BCM. The installation took less than an hour, and instantly, all the strange electrical issues were gone. It’s a perfect example of how the right part, properly prepared, can save customers hundreds of dollars and significant downtime.
Common Signs of a Failing BCM
If you’re experiencing any of the following, a faulty BCM is the likely culprit. A failing module can also trigger various Diagnostic Trouble Codes (DTCs), most commonly communication codes like U0140.
- ✔ Erratic power window or door lock operation.
- ✔ Interior or exterior lights not working correctly (staying on or not turning on).
- ✔ The security system or horn activating without reason.
- ✔ The key fob no longer works or works sporadically.
- ✔ Dashboard warning lights appearing for seemingly unrelated systems.
- ✔ Intermittent no-start conditions where the engine cranks but won’t fire.
- ✔ Problems with the HVAC (heating and air conditioning) controls.
A Straightforward Guide to Installation
Replacing the 2010 Avalanche 1500 BCM is a manageable job for a DIYer with basic tools. In most of these trucks, it’s located under the driver’s side of the dashboard, near the steering column.
- 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: On the 2010 Avalanche, you’ll typically find the BCM mounted to the left of 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 your new, pre-programmed BCM in the same location and securely reconnect all the electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect and Test: Reinstall any panels you removed, then reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, lights, radio, etc.—to confirm the repair.
Important Post-Installation Note: While our cloning service eliminates the need for programming, some vehicles may require a simple relearn procedure. For instance, if the airbag light appears, a ‘Setup SDM Primary Key in BCM’ procedure may be needed with a compatible scan tool. Similarly, a Brake Pedal Position relearn might be required. Always consult a service manual for your specific vehicle if you encounter any issues.
Verified Vehicle Compatibility
This Body Control Module is a direct replacement for part number 15276271 and a wide range of other interchangeable part numbers. It is guaranteed to fit the following vehicles, but please verify your original part number or consult with us if you are unsure.
ACADIA 07-12 Body Control (BCM); (LH dash)
CAPRICE 11-13 Body Control (BCM)
CAPTIVA SPORT 12 Body Control (BCM); (center dash), ID 20921435, 20921436, 22860591
CTS 08-13 Body Control (BCM); LH dash
DTS 06-11 Body Control (BCM); (RH center dash)
ENCLAVE 08-12 Body Control (BCM); (LH dash)
EQUINOX 07-09 Body Control (BCM); (center dash)
ESCALADE 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25892622
EXPRESS/SAVANA VANS 08-12 Body Control (BCM); (center dash)
G8 08-09 Body Control (BCM); (center dash)
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
IMPALA 06-13 Body Control (BCM); (LH dash)
LUCERNE 06-11 Body Control (BCM); (right side dash)
MONTE CARLO 06-07 Body Control (BCM); (LH steering column)
OUTLOOK 07-10 Body Control (BCM); (center dash)
SRX 07-09 Body Control (BCM); LH dash
STS 10 Body Control (BCM); center dash
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
TAHOE 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
TORRENT 07-09 Body Control (BCM); (center dash)
TRAVERSE 09-12 Body Control (BCM); (LH dash)
VUE 08-10 Body Control (BCM); (center dash)
YUKON / YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
Frequently Asked Questions
Frequently Asked Questions
How does the BCM cloning service work?
After you place your order, you will ship your original BCM to us. We use specialized equipment to extract the vehicle-specific data (like VIN, key information, and optional feature settings) and flash it onto the replacement module. This makes the new module an exact electronic copy of your old one, eliminating the need for dealer programming.
Do I need to provide my VIN when I order?
While the cloning process is the primary method, providing your VIN is a great backup. It allows us to double-check the programming and ensure the latest factory software updates from GM are applied for your specific vehicle, ensuring optimal performance.
What happens to my original module?
Your original module is always returned to you along with the programmed replacement unit. We do not keep your old part.
What if my airbag light is 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 in BCM’ procedure that can be performed by any professional mechanic with a capable diagnostic tool. It is only necessary if the light appears after the swap.
Is this a difficult part to replace for a DIYer?
For most individuals with basic mechanical skills and tools, this is a very manageable repair. The BCM is typically accessible under the dash, and the process involves unplugging connectors and removing a few bolts. Our pre-programming service handles the most complex part of the job for you.