Restore Full Functionality to Your GM Truck
Are you chasing frustrating electrical gremlins in your 2007-2011 Chevrolet Avalanche 1500? One day the radio works, the next it doesn’t. The power windows have a mind of their own, and the A/C blower motor quits unexpectedly. These aren’t separate problems—they’re classic signs of a failing Body Control Module (BCM), the central command center for your truck’s body electronics. This VIN-programmed BCM is the definitive, hassle-free solution to restore your vehicle’s systems to perfect working order.
As a technician, I’ve seen countless hours and dollars wasted trying to diagnose these individual symptoms. The BCM orchestrates everything from your interior lights and door locks to the security system and HVAC. When it starts to fail, it creates a cascade of confusing issues. Our module arrives programmed specifically to your vehicle’s VIN, eliminating the need for expensive dealership programming. It’s a true plug-and-play fix that gets you back on the road with confidence.
Is Your Avalanche Exhibiting These Symptoms?
- ✔ The HVAC controls or blower motor work intermittently or not at all.
- ✔ Your power windows, door locks, or wipers are behaving erratically.
- ✔ The security system is malfunctioning, causing no-start or stalling conditions.
- ✔ An airbag warning light is illuminated, often with a DTC B1001 code stored.
- ✔ You’re experiencing strange lighting issues, like headlights or interior lights staying on or not working.
- ✔ Multiple communication or body-related Diagnostic Trouble Codes (DTCs) are present.
Case Study: The Ghost in the Machine
A customer brought in his ’08 Sierra, convinced it was possessed. The dash lights would flicker, the radio would cut out on bumpy roads, and his battery was constantly draining overnight. He’d already replaced the battery and alternator to no avail. After a quick scan, I found a dozen communication codes pointing to the BCM. A failing BCM can cause parasitic draws that are notoriously difficult to trace. We swapped in a VIN-programmed module, and all the electrical ghosts vanished. This single part solved four different problems and saved him from more costly, incorrect repairs.
Your 5-Minute BCM Swap: A Step-by-Step Guide
- ✔ Safety First: Always disconnect the negative terminal from your truck’s battery before working on electrical components.
- ✔ Locate the BCM: On most GM trucks of this era, the BCM is located under the driver’s side of the dashboard, near the steering column. It’s a black box with several large multi-pin connectors.
- ✔ Disconnect and Remove: Carefully press the release tabs on each electrical connector and pull them straight out. The module is typically held in place by simple clips or a few small bolts. Remove them and slide the old BCM out.
- ✔ Install the New Module: Slide your new, pre-programmed BCM into place and secure it. Firmly reconnect all electrical connectors, ensuring they click and lock into position.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all functions: lights, windows, locks, wipers, and HVAC to confirm the repair.
Post-Installation Note: In some cases, particularly if you had an airbag light on, you may need to perform a “Setup SDM Primary Key in BCM” procedure with a bi-directional scan tool. This syncs the new BCM with the airbag system. A Brake Pedal Position relearn may also be required for proper traction control function.
Guaranteed Fitment for Your GM Truck or SUV
This module is a direct replacement for part number 15878753 and other interchangeable numbers, ensuring compatibility with a wide range of General Motors vehicles. Please verify your model and year below:
SILVERADO 1500/2500/3500: 2007-2013
SUBURBAN 1500/2500: 2007-2011
TAHOE: 2007-2011
GMC SIERRA 1500/2500/3500/DENALI: 2007-2013
GMC YUKON / YUKON XL: 2007-2011
CADILLAC ESCALADE / ESV / EXT: 2007-2011
Note: For 2007 models, this fits the ‘new style’ with the smooth door skin. For some 2010-2013 models, please confirm ID 25835966.
Frequently Asked Questions
Do I need to take this BCM to the dealer for programming?
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.
Is there a core charge for my old part?
Absolutely not. There is no core charge on this BCM. You can keep your old part or dispose of it without the hassle of a return.
My airbag light is on. Will this fix it?
This module will fix airbag light issues caused by a faulty BCM (like DTC B1001). However, after installation, you may need a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the modules and turn off the light.
What tools do I need for installation?
Basic hand tools are all that’s required for the physical swap, typically just a socket or screwdriver to remove the mounting bolts. The entire process usually takes less than 15 minutes.
What does this part interchange with?
This module is a direct replacement for part numbers 15878753, 25844480, 25835966, 15263363, 15943678, 20939137, 22860591, and others listed in the full description.