Restore Your Sierra’s Brainpower and Banish Electrical Gremlins
Is your 2011 GMC Sierra Denali 1500 acting possessed? Flickering lights, unresponsive power windows, or a climate control system with a mind of its own are more than just annoyances—they’re signs that your truck’s central command center, the Body Control Module (BCM), is failing. Don’t let frustrating electrical issues compromise the comfort and reliability of your premium truck. This genuine OEM-quality GM BCM, part number 25844480, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a simple, plug-and-play installation.
Common Symptoms & Your Solution
A faulty BCM can cause a cascade of confusing problems. If you’re experiencing any of the following, this module is the reliable fix you need:
- Unresponsive or erratic power windows, door locks, or interior/exterior lights.
- HVAC and climate control systems that won’t turn on, or a blower motor that works intermittently.
- An illuminated airbag warning light, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- Strange security system behavior, including random alarm activation or starting issues.
- A host of other electrical DTCs that point to a communication breakdown between systems.
Instead of chasing individual symptoms, address the root cause. Installing this professionally programmed 2011 GMC Sierra Denali 1500 BCM restores the core electronic functions of your vehicle, getting you back on the road with confidence and control.
Features & Benefits
- ✔ Plug & Play Installation: We pre-program the module to your truck’s VIN before shipping. This eliminates the need for expensive dealership programming, saving you time and money.
- ✔ Restored Functionality: Regain complete and reliable control over your vehicle’s essential body electronics, from the power locks to the windshield wipers.
- ✔ OEM-Quality & Reliability: Built to strict General Motors standards, this BCM ensures dependable performance and long-lasting durability, just like the original part.
- ✔ Broad Compatibility: This module is a direct replacement for a wide range of part numbers, including 15901388, 25835966, 20939137, and 22860591, ensuring a perfect fit for many GM trucks and SUVs from 2007-2013.
- ✔ No Core Charge: Keep your old part. We don’t require a core return, simplifying the repair process for you.
- ✔ One-Year Warranty: This unit is backed by our one-year replacement warranty, giving you confidence in your repair.
An Expert’s Diagnostic Tip: Many owners waste hundreds of dollars replacing individual window switches, door lock actuators, or even blower motor resistors, only to find the problem persists. These components all receive their commands from the BCM. If you have multiple, unrelated electrical failures, the BCM is almost always the culprit. Starting your diagnosis here can save you significant time and frustration.
Frequently Asked Questions
Do I need to program this BCM after I receive it?
No. We handle all the programming for you. This module is programmed to your vehicle’s VIN before it ships, making it ready for a plug-and-play installation right out of the box. No trip to the dealer is necessary.
Where is the BCM located on my 2011 GMC Sierra Denali 1500?
The Body Control Module is typically located under the driver’s side dashboard, near the steering column. Installation is straightforward and usually takes less than 10 minutes with basic hand tools.
What if my airbag light is on after installation?
In some cases, if the airbag light was on before the swap (often with code B1001), it may remain on after. This requires a simple “Setup SDM Primary Key in BCM” procedure using a professional-grade scan tool to sync the BCM with the airbag system. This is a common final step for this repair.
Is this the correct BCM for my truck?
This module fits a wide range of 2007-2013 GM trucks and SUVs, including the Silverado, Sierra, Tahoe, and Yukon. It is the correct 2011 GMC Sierra Denali 1500 BCM and interchanges with numerous part numbers. To be 100% certain, you can match the part number from your original module to the list provided on this page or contact us with your VIN.
Do I have to send my old part back?
No, there is absolutely no core charge or need to return your original module. You can keep it or dispose of it at your convenience.