Restore Your Truck’s Brain and Banish Electrical Gremlins
Is your 2010 Chevrolet Avalanche 1500 acting possessed? Flickering interior lights, power windows with a mind of their own, or a security system that randomly prevents you from starting your truck are classic signs of a failing Body Control Module (BCM). As the central command center for your vehicle’s electronics, when the BCM starts to go, it can cause a cascade of frustrating and seemingly unrelated problems. This isn’t just an annoyance; it can impact vehicle security and safety systems.
This is a direct-fit replacement Body Control Module, arriving at your door fully programmed to your vehicle’s specific VIN. We handle the complex part—loading the latest GM software—so you can skip the expensive trip to the dealership for programming. You get a reliable, plug-and-play solution designed to restore your truck’s full functionality.
From the Diagnostic Bay: The Case of the Haunted Truck
I remember a 2010 Avalanche rolling into my shop last fall. The owner was at his wit’s end. The horn would honk when he used the turn signal, the radio display would go blank, and the door locks would cycle while driving. He’d already replaced the battery and checked fuses, but the electrical chaos continued. A quick scan with a pro-level tool revealed a slew of U-codes (U0140, U0155), indicating a loss of communication with the BCM. After confirming power and ground to the module were good, the diagnosis was clear: internal BCM failure. This is a common issue I’ve seen in hundreds of these GM trucks and SUVs, often caused by years of voltage fluctuations and thermal stress. Replacing the BCM with a pre-programmed unit like this one had his truck behaving perfectly in under an hour.
Common Signs of a Failing BCM
- ✔️ Erratic or non-functional power windows, door locks, and interior/exterior lights.
- ✔️ The security or anti-theft system light stays on, preventing the engine from starting.
- ✔️ Dashboard warning lights (like ABS or Airbag) illuminate for no reason.
- ✔️ Remote keyless entry stops working or works intermittently.
- ✔️ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0100, or various B-codes.
- ✔️ Wipers or radio turning on and off by themselves.
A Straightforward Guide to Installation
Installing your new 2010 Avalanche 1500 BCM is a manageable job for a confident DIYer. On the Avalanche, the BCM is typically 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 before working on electrical components.
- Locate the BCM: Remove the lower dash panel beneath the steering column to gain access to the module. It’s a black plastic box with several large electrical connectors.
- Disconnect and Remove: Carefully unplug all electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Reconnect all the electrical connectors firmly until they click into place.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Final Steps: Start the vehicle and check for proper function of all body electronics. Note that some vehicles may require the additional procedures listed below.
Important Post-Installation Information
Because this module is central to many systems, a couple of additional steps might be necessary after installation. These procedures require a bi-directional scan tool and are often needed to ensure all systems communicate correctly.
- Airbag System Sync: If your airbag warning light is on after installation, a technician will need to perform the “Setup SDM Primary Key in BCM” procedure to sync the airbag and body modules.
- Brake Pedal Position Relearn: To ensure accurate brake light operation and stability control function, a brake pedal position sensor relearn may be required on certain models.
Disclaimer: We always recommend consulting your vehicle’s factory service manual or a certified technician for specific instructions and safety precautions.
Will This Fit My Vehicle?
This BCM is a direct replacement for a wide range of General Motors vehicles and interchanges with numerous part numbers. Please verify your vehicle is on the list below and that the part number on your original module is included in our compatible list.
Replaces 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
Partial Fitment List:
AVALANCHE 1500 10 (ID 25892622)
CAPRICE 11-13
CAPTIVA SPORT 12
CTS 08-13
DTS 06-11
ENCLAVE 08-12
EQUINOX 07-09
ESCALADE 10 (ID 25892622 or 20815898)
ESCALADE ESV 10 (ID 25892622 or 20815898)
ESCALADE EXT 10 (ID 25892622)
EXPRESS VANS 08-12
G8 08-09
HUMMER H2 08-09
IMPALA 06-13
LUCERNE 06-11
MONTE CARLO 06-07
OUTLOOK 07-10
SAVANA VANS 08-12
SRX 07-09
STS 10
SUBURBAN 1500 10 (ID 25892622 or 20815898)
TAHOE 10 (ID 25892622 or 20815898)
TORRENT 07-09
TRAVERSE 09-12
VUE 08-10
YUKON 10 (ID 25892622 or 20815898)
YUKON XL 1500 10 (ID 20815898 or 25892622)
Frequently Asked Questions
2010 Avalanche 1500 BCM
Why do you need my VIN to program the module?
Your Vehicle Identification Number (VIN) allows us to load the exact software and calibrations specific to your vehicle’s options and features. This ensures the works correctly right out of the box, eliminating the need for dealership programming.