Is Your Sierra Acting Possessed? Take Back Control.
Are strange electrical issues plaguing your 2011 GMC Sierra 3500? From flickering lights and a dead HVAC blower to power windows with a mind of their own, a failing Body Control Module (BCM) can turn your dependable workhorse into a source of constant frustration. Don’t let unpredictable glitches sideline your truck. This OEM-quality Body Control Module arrives pre-programmed to your vehicle’s VIN, offering a direct, hassle-free solution to restore full functionality and get you back on the road with confidence.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty BCM is the likely culprit. This module is the central command for your truck’s body electronics, and replacing it is the definitive fix for issues such as:
- Intermittent or complete loss of HVAC controls and blower motor function.
- Power windows, door locks, or exterior/interior lights not working correctly.
- The security system acting up, causing no-start conditions or stalling.
- An illuminated airbag warning light, often with DTC B1001.
- A cluster of diagnostic trouble codes related to body systems.
Features & Benefits You Can Count On
- ✔ Plug & Play Installation: This module is expertly programmed to your truck’s specific VIN. This crucial step ensures it communicates flawlessly with your vehicle’s other systems right out of the box, eliminating the need for an expensive trip to the dealership for programming.
- ✔ Restored Functionality: Regain complete and reliable control over all body electronics—from your wipers and lights to your power accessories. Put an end to the guesswork and enjoy a truck that works exactly as it should.
- ✔ OEM-Grade Quality: Built to meet or exceed original equipment standards, this 2011 Sierra 3500 Body Control Module is designed for durability and long-term performance, ensuring it can handle the demands of your heavy-duty truck.
- ✔ Broad Compatibility: This unit is a direct replacement for a wide range of part numbers, including 25823559, 25835966, 25844480, 20939137, and 22860591, making it a versatile solution for many 2007-2013 GM trucks and SUVs.
- ✔ Peace of Mind Protection: This unit is backed by our one-year replacement warranty.
Expert Insight from the Garage
“I’ve seen countless GMT900-platform trucks like this Sierra come in with baffling electrical problems. More often than not, the BCM is the root cause. The biggest mistake I see DIY-ers make is installing a non-programmed module from a salvage yard. It simply won’t work correctly and can even create new problems. Getting a VIN-programmed unit like this one is the single most important step. It saves you hours of diagnostic headaches and ensures the repair is done right the first time. Also, take a moment to check the main ground connections under the driver’s door and on the firewall—a poor ground can mimic BCM failure and cause issues with the new part.”
By replacing your failing component with this pre-programmed 2011 Sierra 3500 Body Control Module, you’re not just buying a part; you’re investing in reliability and restoring the core functionality of your vehicle. Get your truck back to 100% and drive with the assurance that everything works just as the factory intended.
Frequently Asked Questions
Do I need to have this BCM programmed by a dealer?
No. We pre-program this module to your vehicle’s VIN before shipping. This allows for a straightforward installation without the need for expensive dealership tools or software.
Is installation difficult? Can I do it myself?
For most experienced DIY-ers, the installation is simple. The BCM is typically located under the driver’s side dashboard, near the steering column. It’s a matter of disconnecting the battery, unplugging the electrical connectors, removing the old module, and installing the new one. The entire process often takes less than 15 minutes.
My airbag light is on. Will this fix it?
This module can resolve airbag light issues caused by BCM failure (like DTC B1001). However, after installation, some vehicles may require an ‘SDM Key Relearn’ procedure using a professional-grade scan tool to sync the new BCM with the airbag system and turn off the light.
Do I need to send my old part back?
No, there is no core charge for this part. You can keep or dispose of your old module at your convenience.
Will this 2011 Sierra 3500 Body Control Module fit other vehicles?
Yes, this BCM is compatible with a wide range of 2007-2013 GM trucks and SUVs, including the Silverado, Tahoe, Suburban, Yukon, and Escalade. Please verify the part number or use our vehicle fitment tool to ensure it is correct for your specific model.