Is Your GM Truck Plagued by Baffling Electrical Issues?
If you’re dealing with flickering lights, a climate control system with a mind of its own, or power windows and locks that work intermittently, you’re not alone. These frustrating and often unpredictable symptoms point directly to a failing Body Control Module (BCM). In a robust vehicle like a Sierra, Silverado, or Tahoe, these aren’t minor annoyances—they compromise your truck’s functionality, safety, and reliability. It’s time to stop chasing electrical ghosts and install a permanent, reliable solution.
Common Symptoms & Your Solution
A faulty BCM can wreak havoc on your vehicle’s electronic systems. This VIN-programmed module is the definitive fix for issues such as:
- Intermittent or non-working HVAC and blower motor controls.
- An illuminated airbag warning light, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- Unresponsive power windows, door locks, or interior/exterior lights.
- Malfunctions with the vehicle’s security system, leading to no-start conditions.
- Erratic instrument cluster behavior or other seemingly unrelated electrical gremlins.
By replacing your old unit with this pre-programmed 22860591 Body Control Module, you restore the central nervous system of your vehicle’s electronics, ensuring everything works exactly as it did from the factory.
Features & Benefits
- ✔ VIN Programmed for Your Truck: We program this module to your vehicle’s specific VIN before shipping. This ensures complete compatibility and allows for a true plug-and-play installation, saving you from a costly and time-consuming trip to the dealership for programming.
- ✔ Restores Full Electrical Control: Regain dependable command over all body functions, from your power accessories and lighting to the climate control and security systems.
- ✔ Engineered to OEM Standards: Built to meet or exceed original equipment specifications, this BCM provides the durability and performance you demand for your work truck or family SUV.
- ✔ Direct Interchange Solution: This module is a direct replacement for a wide range of part numbers, including 25844480, 25835966, 15943678, 20939137, and more, ensuring a perfect fit.
- ✔ Warranty Coverage: This unit is backed by our one-year replacement warranty.
An Expert’s Take on BCM Replacement
“After 20 years with my hands on these trucks, I can tell you that a failing BCM is one of the most frustrating diagnoses for any owner. The symptoms are often sporadic and seem unrelated. In the past, a replacement meant a tow to the dealer and a hefty bill for programming. A pre-programmed 22860591 Body Control Module completely changes the game. It turns a complex, multi-day repair into a simple, under-an-hour job you can do in your own driveway. It’s the smartest, most efficient way to get your truck’s brain working right again.”
Frequently Asked Questions
What does a Body Control Module do on my Sierra or Silverado?
The BCM acts as the central computer for your vehicle’s body electronics. It manages non-engine-related functions like your lights, power windows, door locks, climate control (HVAC), security system, and wipers, ensuring they all communicate and operate correctly.
Is this BCM truly “plug-and-play”?
Yes. Because we pre-program the module to your vehicle’s VIN, it’s ready for installation right out of the box. In most cases, no further programming or setup is required, making it a straightforward DIY repair. The final step to get your truck back to 100% is the simple post-install procedures.
What if my airbag light stays on after installation?
If the airbag warning light remains on (often with DTC B1001), it simply means the new BCM needs to be synced with the airbag system’s SDM module. This is done with a professional scan tool using the ‘Setup SDM Primary Key in BCM’ function. It’s a quick procedure that a qualified technician can perform.
Where is the BCM located on my truck?
On most compatible GM trucks and SUVs from this era (2007-2013), the BCM is conveniently located under the driver’s side dashboard, near the steering column. It is typically accessible by removing the lower dash panel.
Do I need to send my old part back?
No. This module is sold without a core charge. You can keep your old part, saving you the time and hassle of a return shipment.
How do I know if this 22860591 Body Control Module is correct for my vehicle?
This module replaces many common part numbers. The best way to confirm is to check the part number on your original BCM. If it matches 22860591 or any of the other numbers listed in the description (like 25844480, 25835966, etc.), this is the correct part for you. You can also use the fitment guide on our website.