Restore Full Electrical Function to Your GM Vehicle
Are you battling frustrating electrical gremlins in your 2010 Chevrolet Avalanche or another compatible GM vehicle? Flickering dash lights, unresponsive power windows, or a persistent ‘Service Theft System’ message are classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it falters, it can cause a cascade of confusing and annoying problems. This isn’t just an inconvenience; it can impact vehicle security and safety systems. This replacement 2010 Avalanche Body Control Module is the reliable, straightforward solution to restore your vehicle’s proper operation.
From the Diagnostic Bay
Just last month, a 2010 Tahoe—which uses this exact BCM—was towed to my shop. The owner was at his wit’s end. The interior lights would stay on, the radio would randomly shut off, and the key fob worked intermittently. He’d already replaced the battery and checked fuses, but the problems persisted. A quick scan with a professional tool pointed directly to communication errors with the BCM. We swapped in one of these VIN-programmed modules, performed the necessary key relearn, and within an hour, every single issue was resolved. The owner was thrilled to have his truck back without a costly, time-consuming trip to the dealership.
Is Your GM Vehicle Showing These BCM Failure Signs?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the solution you need:
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not turning on).
- ✔ The security or anti-theft system light is on, or the vehicle won’t start.
- ✔ Inaccurate or dead gauges on your instrument cluster.
- ✔ Warning messages on the driver information center (DIC) like “Service Theft System.”
- ✔ Problems with the heating and A/C blower motor controls.
The Smart Solution: VIN-Programmed for You
Don’t get stuck with a blank module that requires expensive dealership programming. We take the hassle and extra cost out of the equation. When you purchase this BCM, you simply provide us with your vehicle’s 17-digit VIN. Our technicians will then flash the module with the latest GM-certified software specific to your vehicle’s configuration. This ensures that when it arrives, it’s ready for installation, saving you hundreds in dealer programming fees and getting you back on the road faster.
A Straightforward Guide to BCM Installation
For the confident DIYer or professional mechanic, installing this 2010 Avalanche Body Control Module is a manageable job. While specific locations vary slightly by model, the general process is consistent.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On a 2010 Avalanche, Tahoe, or Suburban, the BCM is typically located under the driver’s side of the dashboard, near the steering column. For vans like the Express or Savana, it’s often behind the center dash panel.
- Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the module.
- Disconnect and Remove: Unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical harnesses. Ensure they click into place.
- Perform Final Steps: Reassemble the dash panels and reconnect the battery. You will need to perform the required post-installation procedures outlined below.
Critical Post-Installation Procedures
After installing your new BCM, a couple of final steps are required to ensure all systems communicate correctly. This is a normal part of the process for modern vehicles.
- Airbag System Reset: To clear the airbag warning light, a ‘Setup SDM Primary Key in BCM’ procedure must be performed using a bi-directional scan tool. This re-establishes the security handshake between the BCM and the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Sensor Relearn: Some vehicles may require the Brake Pedal Position (BPP) sensor to be recalibrated after BCM replacement. This ensures the brake lights and stability control systems function correctly.
- Theft Deterrent Relearn: Your vehicle’s anti-theft system will need to be relearned to recognize the new BCM. This can often be done without a scan tool and typically involves a sequence of turning the key in the ignition.
Verified Vehicle Compatibility
This BCM is a direct replacement for a wide range of General Motors vehicles and interchanges with numerous part numbers. Please verify your vehicle and options below. This part is a confirmed fit for the 2010 Avalanche Body Control Module and many others.
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
Fits Models Including:
- Acadia (2007-2012)
- Avalanche (2010)
- Caprice (2011-2013)
- Captiva Sport (2012)
- CTS (2008-2013)
- DTS (2006-2011)
- Enclave (2008-2012)
- Equinox (2007-2009)
- Escalade, ESV, EXT (2010)
- Express / Savana Vans (2008-2012)
- G8 (2008-2009)
- Hummer H2 (2008-2009)
- Impala (2006-2013)
- Lucerne (2006-2011)
- Monte Carlo (2006-2007)
- Outlook (2007-2010)
- SRX (2007-2009)
- STS (2010)
- Suburban (2010)
- Tahoe / Yukon / Yukon XL (2010)
- Torrent (2007-2009)
- Traverse (2009-2012)
- Vue (2008-2010)
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the main computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, the security system, wipers, and climate control features, ensuring they all work together.
Why do you need my VIN number?
We require your Vehicle Identification Number (VIN) to program the BCM with the correct software and settings for your specific vehicle’s options. This makes the installation process much smoother and ensures compatibility, saving you a trip to the dealer.
Is this a difficult part to replace myself?
For someone with moderate mechanical skill, it is a manageable job. The main challenge is typically accessing the module under the dashboard. The key is to have a bi-directional scan tool available for the post-installation procedures, like the airbag system reset.
What happens if I install it without doing the relearn procedures?
If you skip the post-installation relearns, you will likely have persistent warning lights (like the airbag light), and certain features may not work correctly. The vehicle’s anti-theft system may also prevent it from starting until the security relearn is complete.
Will this part fix my check engine light?
Generally, no. The BCM controls body functions, while the Engine Control Module (ECM) or Powertrain Control Module (PCM) manages the engine and transmission. A check engine light is typically related to the ECM/PCM, not the BCM.