Restore Full Electrical Function to Your GM Truck or SUV
Are you battling frustrating electrical issues in your truck? A faulty Body Control Module (BCM) is often the culprit behind problems like erratic lights, unresponsive power windows and locks, malfunctioning HVAC systems, or a persistent airbag light. This genuine OEM-quality Body Control Module, compatible with part numbers 15878753 and 25844480, is the definitive solution for your 2007-2013 GM vehicle. Specifically engineered as a replacement for the 2011 Sierra Denali BCM, this module arrives pre-programmed to your vehicle’s VIN, eliminating the need for expensive dealership visits and ensuring a seamless, plug-and-play installation.
We had a 2011 Sierra 2500 in the shop with a textbook case of electrical chaos. The owner had spent weeks chasing what he thought was a bad ground. The dome lights would stay on, the driver’s side power window worked intermittently, and the radio would randomly shut off. After confirming the grounds and power feeds to the BCM were solid, we knew the module itself had failed internally. Swapping in a VIN-programmed BCM like this one resolved all issues in under 10 minutes. It’s a reminder that what seems like multiple separate problems often points back to one central component.
Symptoms of a Failing BCM and Key Benefits
- ✔ VIN Programmed for Your Truck: Arrives ready for installation with the latest GM software updates for your specific vehicle. No extra programming required.
- ✔ Fixes Common Electrical Failures: Solves issues with interior/exterior lights, power locks, windows, wipers, and security system malfunctions.
- ✔ Restores HVAC Control: Corrects problems like an inoperative blower motor or unresponsive climate controls.
- ✔ Clears Diagnostic Codes: A direct fix for BCM-related DTCs, including the common B1001 airbag code (post-install sync may be needed).
- ✔ OEM-Standard Reliability: Built to stringent factory specifications for dependable performance and longevity, backed by a one-year warranty.
- ✔ No Core Charge: Keep your old part without the hassle of a core return, saving you time and money.
Installation Guide for Your 2011 Sierra Denali BCM
Replacing the BCM is a straightforward process. The module is typically located under the driver’s side dashboard, near the steering column. The physical swap takes only a few minutes. Because this unit is pre-programmed to your VIN, your truck will start and run immediately. However, please note two potential post-installation procedures:
- Airbag System Sync: If the airbag warning light remains on after installation, a technician will need to perform the “Setup SDM Primary Key in BCM” function using a professional scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure correct brake light and traction control operation.
This module is a direct replacement for a wide range of part numbers, including: 15263363, 15263497, 15284816, 15878753, 15901388, 15926094, 15940214, 15943678, 20939137, 20939138, 22860591, 25790508, 25790509, 25823558, 25823559, 25835965, 25835966, 25844479, 25844480, 25971916, and 25971917.
Frequently Asked Questions
What does a Body Control Module do on a GMC Sierra?
The BCM acts as the central computer for your truck’s body electronics. It controls non-engine related functions like your lights, power windows, door locks, security system, wipers, and climate control system.
Is this module ready to install right out of the box?
Yes! We program the module to your vehicle’s specific VIN before shipping. This ensures it is plug-and-play, with no need for additional dealership programming for the module itself to function.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your old module without any extra fees or hassle.
What if my airbag light is on after I install the new BCM?
This is a common occurrence. It means the new BCM needs to be synchronized with the airbag system’s Sensing and Diagnostic Module (SDM). A repair shop with a professional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to turn off the light.
How do I know this BCM will fit my truck?
This module fits a wide range of 2007-2013 GM trucks and SUVs, including the Sierra, Silverado, Tahoe, Yukon, and Escalade. Please verify your part number against the provided interchange list or contact us with your VIN to confirm perfect fitment.