Is Your GM Truck Experiencing Strange Electrical Problems?
If your 2011 GMC Sierra Denali 2500 is suffering from flickering lights, unresponsive power windows or locks, or a malfunctioning HVAC system, a failing Body Control Module (BCM) is the likely culprit. The BCM is the central command center for your truck’s body electronics, and when it fails, it can cause a cascade of frustrating and difficult-to-diagnose issues. This OEM-quality BCM, equivalent to part number 22860591, is the definitive solution to restore your vehicle’s full functionality.
We take the guesswork and dealership hassle out of the repair. Each module is expertly programmed to your vehicle’s specific VIN before shipping. This ensures a true plug-and-play installation, with no need for expensive dealer tools or additional programming fees. It arrives ready to resolve common Diagnostic Trouble Codes (DTCs) and get your truck back to operating as it should.
Symptoms of a Failing GM Body Control Module
- ✔ Power windows, door locks, or mirrors operate intermittently or not at all.
- ✔ Interior or exterior lights flicker, stay on, or fail to turn on.
- ✔ The HVAC system is unresponsive, or the blower motor works sporadically.
- ✔ An airbag warning light is illuminated, often with DTC B1001.
- ✔ The vehicle’s security system malfunctions, preventing the engine from starting.
- ✔ Wipers behave erratically or won’t park in the correct position.
- ✔ You experience stalling, misfires, or other seemingly unrelated engine performance problems.
Why a Programmed 2011 Sierra Denali BCM is Essential
A BCM isn’t a one-size-fits-all part. It must be configured with the correct software and vehicle-specific options to communicate with other modules like the Engine Control Module (ECM), Transmission Control Module (TCM), and Sensing and Diagnostic Module (SDM). Our pre-programming service ensures this 2011 Sierra Denali BCM is loaded with the latest GM software updates for your exact vehicle, guaranteeing seamless integration and optimal performance right out of the box.
Installation and Post-Install Notes
Installation is straightforward. The BCM is typically located under the driver’s side dashboard, near the steering column. Simply disconnect the negative battery terminal, unplug the electrical connectors from the old module, remove it, and install the new one. Reconnect everything and you’re done. No core charge means you can keep your old part without hassle.
Important: In some cases, particularly if the airbag light was on, a post-install procedure called ‘Setup SDM Primary Key in BCM’ may be required. This syncs the new BCM with the airbag system and can be performed with a professional-grade scan tool. A brake pedal position relearn may also be necessary for certain models.
Frequently Asked Questions
Do I need to take this BCM to the dealership for programming?
No. This Body Control Module comes pre-programmed to your vehicle’s VIN. It is ready for installation upon arrival, saving you time and money.
What does the BCM control on my Sierra?
The BCM manages a wide range of body-related functions, including power windows, door locks, interior and exterior lighting, the security system, wipers, and HVAC climate controls.
My airbag light is on. Will this fix it?
This BCM will fix airbag light issues caused by a faulty module (like DTC B1001). However, after installation, you may need a technician with a high-level scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems and clear the light.
Is this part compatible with other part numbers?
Yes, this module is a direct replacement for a wide range of part numbers, including 25844480, 25835966, 15943678, 20939137, 22860591, and more. Please verify your part number to ensure compatibility.
Is there a core charge?
No, there is no core charge. You are not required to send your old part back to us.