End the Electrical Gremlins in Your GM Truck or SUV
Is your 2011 GMC Sierra Denali 1500 or another GM vehicle experiencing a frustrating array of electrical issues? From a climate control system with a mind of its own to power windows that won’t budge, a failing Body Control Module (BCM) is often the culprit. It’s the central command for your vehicle’s essential electronic accessories, and when it fails, it can make driving a daily hassle. This replacement GM BCM, part number 25844480, is the definitive, plug-and-play solution, pre-programmed to your vehicle’s specific VIN to restore full functionality and get you back on the road with confidence.
Common Symptoms & Your Solution
If you’re dealing with any of the following problems, a faulty BCM is the likely cause. This pre-programmed module is engineered to resolve these exact issues, including persistent Diagnostic Trouble Codes (DTCs) like B1001. Stop chasing symptoms and fix the root problem with a reliable 25823558 Body Control Module.
- Intermittent or completely dead HVAC and blower motor controls
- Airbag warning light that won’t turn off
- Power windows, door locks, or mirrors failing to operate
- Malfunctioning interior and exterior lights
- Erratic security system behavior, causing no-start or stalling conditions
- Unexplained battery drain or grounding-related electrical faults
Features & Tangible Benefits
- ✔ VIN-Programmed for Your Vehicle: We program this module to your truck’s VIN before shipping. This ensures it works seamlessly with your existing systems right out of the box, eliminating the need for expensive dealership programming.
- ✔ Restores Full Functionality: Regain complete and reliable control over your vehicle’s essential body electronics—from the power locks and windows to the climate control and security system.
- ✔ OEM-Standard Quality: Built to meet or exceed original equipment specifications, ensuring dependable performance and longevity for your work truck, family SUV, or luxury vehicle.
- ✔ Broad GM Compatibility: This module is a direct replacement for a wide range of part numbers, including 25835966, 15940214, 20939137, 22860591, and the 25823558 Body Control Module, making it the right fit for dozens of Chevrolet, GMC, and Cadillac models from 2007-2013.
- ✔ Hassle-Free Core Policy: No core charge is required. You can keep or dispose of your old module without the stress of return shipping or waiting for a refund.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
Expert Technician’s Insight
A word of advice from 20 years in the garage: Before installing your new BCM, take five minutes to inspect the main ground connections, especially the one on the driver’s side A-pillar near the emergency brake. A loose or corroded ground is a primary cause of BCM failure and can damage your new part if left unaddressed. Ensuring a clean, tight ground connection is the best way to guarantee a successful and lasting repair.
Frequently Asked Questions
What does ‘VIN Programmed’ actually mean?
It means we load your vehicle’s unique 17-digit Vehicle Identification Number (VIN) and all the latest GM software onto the module before we ship it. This makes the BCM a true plug-and-play part, as it’s already configured to communicate perfectly with your truck’s specific features and other computer systems, avoiding a costly trip to the dealer.
Is this BCM difficult to install?
No, the physical installation is quite straightforward for most DIYers. The BCM is typically located under the driver’s side dashboard, near the steering column. The entire swap usually takes less than 15 minutes with basic tools. The most important part is ensuring the battery is disconnected before you begin.
My airbag light is on. Will this fix it?
This module will resolve BCM-related airbag codes like B1001. However, after installation, you may need to perform a ‘Setup SDM Primary Key in BCM’ procedure using a professional-grade scan tool. This syncs the new BCM with the airbag system (SDM) to turn off the light. This is a common final step for this repair.
Is this a new or used part?
This is a high-quality, OEM-standard replacement part that has been expertly prepared and programmed for your vehicle. It is guaranteed to restore your vehicle’s functionality and is supported by a one-year warranty for your peace of mind.
How do I know if this 25823558 Body Control Module is the right part for my vehicle?
The best way is to match the part number from your original BCM. This module replaces numerous part numbers, including 25823558, 25844480, 20939137, and more. You can also use the fitment list provided on this page or contact our expert support team with your VIN to confirm compatibility.