Is your 2010 Chevrolet Avalanche 1500 suffering from bizarre electrical issues that you can’t seem to trace? Are the power windows acting up, the door locks misbehaving, or are you seeing random warning lights on your dash? Before you spend a fortune on diagnostic time at the dealership, the problem is very likely a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen these exact symptoms hundreds of times, and the BCM is the common culprit. It’s the central nervous system for your truck’s comfort and convenience features, and when it fails, it can cause a cascade of frustrating problems.
This isn’t just a replacement part; it’s a complete, hassle-free solution. We provide a genuine OEM Body Control Module that is professionally programmed to your truck’s exact Vehicle Identification Number (VIN) before it ships. This means it arrives at your door with the latest GM software updates, ready for installation. You get to skip the expensive programming fees and long wait times at the dealership. This is the most efficient and reliable way to restore your truck’s full functionality and get rid of those electrical gremlins for good.
Is Your Avalanche Exhibiting These Electrical Gremlins?
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Flickering interior or exterior lights that seem to have a mind of their own.
- ✔ The security system acting erratically or preventing the vehicle from starting.
- ✔ Dashboard warning lights (like ABS or Airbag) illuminating for no reason.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or other U-codes.
- ✔ Radio or climate control systems not functioning correctly.
Case Study: A Tricky Diagnosis
A customer brought in his 2010 Avalanche, completely fed up. His power locks would work one minute and fail the next, his dome light would stay on, and the radio would randomly shut off. He’d already replaced the battery and checked fuses with no luck. After connecting my scan tool, I saw multiple communication loss codes pointing to the BCM. These modules often fail internally from years of heat cycles and voltage fluctuations. We installed a VIN-programmed 2010 Avalanche 1500 BCM, and within an hour, every single one of his electrical issues was gone. It’s a fix that brings immense relief to owners by restoring the vehicle to its proper, predictable operation.
Your Straightforward BCM Installation Guide
Replacing the BCM on your Avalanche is a manageable job for a DIYer with basic tools. Our pre-programmed module makes the process much simpler. For the 2010 Avalanche 1500, 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 and wait about 10-15 minutes to allow all systems to power down completely.
- Locate the Module: Remove the lower dash panel beneath the steering wheel to gain access to the BCM. It’s a black plastic box with several large electrical connectors.
- Disconnect and Remove: Carefully unplug all wiring harnesses from the old BCM. They have locking tabs that need to be pressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location. Securely plug in all the wiring harnesses, ensuring each one clicks into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting the engine) and test your electronics—windows, locks, lights, etc.
- Perform Relearns (If Needed): Start the vehicle. In some cases, you may need to perform additional procedures as detailed below if specific warning lights appear.
Post-Installation Steps & Considerations
While our BCM is programmed for your VIN, certain vehicle security and safety systems may require a handshake procedure after installation. This is normal.
- Airbag System Sync: If the airbag warning light is on after installation, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” function. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure proper function of the brake lights and stability control system.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or consult with a qualified technician if you are unsure about any step.
Verified Vehicle Compatibility
This Body Control Module is a guaranteed fit for the 2010 Chevrolet Avalanche 1500. It is also a direct replacement for a wide range of other General Motors vehicles. Please verify your part number or consult the list below. 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.
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, 25892622
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25892622
EXPRESS 1500 VAN 08-12 Body Control (BCM); (center dash)
EXPRESS 2500 VAN 08-12 Body Control (BCM)
EXPRESS 3500 VAN 08-12 Body Control (BCM)
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)
SAVANA 1500 VAN 08-12 Body Control (BCM); (center dash)
SAVANA 2500 VAN 08-12 Body Control (BCM)
SAVANA 3500 VAN 08-12 Body Control (BCM)
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, 25892622
TAHOE 10 Body Control (BCM); (under steering column), ID 20815898, 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 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
Frequently Asked Questions
Frequently Asked Questions
Do I need to send my original BCM back?
No, there is no core charge for this part. You can keep your original module.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit VIN. We cannot ship the module until we have programmed it with your vehicle’s information.
Is this a difficult part for a DIYer to install?
For most people with basic mechanical skills, this is a straightforward replacement. The main challenge is accessing the module under the dashboard. Since our module comes pre-programmed, you avoid the most complex part of the job.
What tools are required for the post-installation procedures?
The Airbag System Sync and Brake Pedal Position Relearn require a bi-directional professional diagnostic tool, like a GM Tech 2 or a high-end aftermarket scanner. Many local repair shops can perform these relearns for a small fee if needed.