Restore Your Avalanche’s Electrical System
Is your 2007-2011 Chevrolet Avalanche 1500 acting possessed? Flickering lights, a dead climate control panel, or power windows with a mind of their own are classic signs of a failing Body Control Module (BCM). As the central hub for your truck’s body electronics, a faulty BCM can cause a cascade of frustrating and unpredictable problems. This replacement module, interchangeable with part number 15926094, is the definitive solution. We pre-program it to your vehicle’s specific VIN, ensuring it works perfectly right out of the box—no expensive trip to the dealership required.
Case Study: The Ghost in the Machine
A customer brought in his ’09 Silverado with a laundry list of electrical gremlins: the radio would cut out, the driver’s side power lock was dead, and the airbag light was on (DTC B1001). He’d already replaced the battery and checked all the main grounds. In my 20 years on the job, these symptoms scream BCM failure. The module’s internal circuits and processors fail over time from heat cycles and vibration. We installed one of our VIN-programmed modules, and within minutes, every single issue was resolved. This is a fix that restores not just functionality, but confidence in your vehicle.
Is Your Avalanche Showing These Electrical Faults?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s highly likely this module is the culprit. Replacing your 2007-2011 Avalanche 1500 BCM can be the one-step fix you need.
- ✔ The HVAC blower motor is intermittent or completely dead.
- ✔ Power windows, door locks, or interior/exterior lights work sporadically or not at all.
- ✔ The security system acts up, causing no-start or stalling conditions.
- ✔ You have an active airbag warning light, often with a DTC B1001 code stored.
- ✔ Multiple communication or body-related Diagnostic Trouble Codes (DTCs) are present.
- ✔ Unexplained battery drain when the vehicle is off.
Get It Done in 5 Minutes: A Straightforward Installation Guide
This is a job most DIYers can handle with basic tools in their own driveway. Our VIN programming makes it a simple component swap.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On your Avalanche, the BCM is located under the driver’s side dashboard, typically to the left of the steering column.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. They have release tabs that need to be pressed. Once disconnected, unclip or unbolt the old BCM from its mounting bracket.
- Install the New Module: Seat the new, pre-programmed BCM into the mounting bracket and securely plug in all the electrical connectors. You’ll hear a click as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all functions: lights, wipers, locks, windows, and HVAC to confirm the repair.
Post-Installation Note: In some cases, if the airbag light was on, it may remain on after installation. This requires a ‘Setup SDM Primary Key in BCM’ procedure using a bi-directional scan tool to sync the new BCM with the airbag system. A brake pedal position relearn may also be necessary on some models.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of General Motors trucks and SUVs. It is engineered to interchange seamlessly with multiple part numbers, including 15926094, 25844480, 20939137, and 22860591. While this is a perfect fit for the 2007-2011 Avalanche 1500 BCM, it also fits:
- Chevrolet Silverado & GMC Sierra (1500, 2500, 3500) | 2007-2013
- Chevrolet Suburban, Tahoe & GMC Yukon, Yukon XL | 2007-2011
- Cadillac Escalade (ESV, EXT) | 2007-2011
Please verify your part number or contact us with your VIN to ensure 100% compatibility.
Frequently Asked Questions
Frequently Asked Questions
Do I need to have this BCM programmed by the dealer?
No. We pre-program the module to your vehicle’s VIN before shipping. It arrives ready for a plug-and-play installation, saving you time and money.
What tools do I need for the installation?
Typically, you’ll only need a basic socket set or nut driver to remove the old module from its bracket and a wrench to disconnect the battery. No special tools are required for the swap itself.
What if my airbag light stays on after I install it?
This is a known possibility. It means the new BCM needs to be electronically ‘introduced’ to the airbag system (SDM). This procedure, called ‘Setup SDM Primary Key in BCM,’ must be done with a professional-grade scan tool but can be performed by most independent repair shops.
Is there a core charge for my old part?
No, there is absolutely no core charge. You can keep your old module without any penalty.
What is the warranty on this part?
This Body Control Module comes with a one-year warranty, giving you peace of mind and protection for your investment.