Are you chasing frustrating electrical gremlins in your Chevrolet Silverado, GMC Sierra, or other GM truck? Unpredictable lights, a non-responsive HVAC system, or strange security alerts often point to a single culprit: a failing Body Control Module (BCM). This module is the central command for your vehicle’s body electronics, and when it malfunctions, it can create a cascade of confusing and disruptive problems. Stop swapping fuses and relays and address the root cause of the issue.
This VIN-programmed GM Body Control Module, compatible with part number 22860591, is the direct-fit solution to restore your truck’s full electrical functionality. It arrives pre-configured to your vehicle’s specific VIN using the latest GM software updates. This eliminates the need for expensive dealership programming and allows for a straightforward, plug-and-play installation, getting you back on the road faster.
Before you replace your BCM, take a moment to inspect the main ground connections under the driver’s side dash and on the vehicle’s frame. A loose or corroded ground can mimic BCM failure and may cause the new module to malfunction as well. A clean, tight ground is critical for electrical system health.
Is Your BCM Failing? Watch for These Symptoms
- ✔ Non-working or erratic power windows, door locks, or exterior lights.
- ✔ Complete loss of HVAC controls or an intermittent blower motor.
- ✔ An illuminated airbag warning light, often with DTC B1001.
- ✔ Security system malfunctions, causing no-start or stalling conditions.
- ✔ A variety of seemingly unrelated diagnostic trouble codes (DTCs) stored in the vehicle’s computer.
Why Choose a Pre-Programmed GM Truck BCM?
Choosing a pre-programmed module is the most efficient way to complete this repair. When you order from us, we flash the unit with your truck’s unique VIN, ensuring all systems communicate correctly from the moment of installation. This process ensures optimal performance and resolves common electronic conflicts without requiring a visit to a mechanic for further setup. A reliable GM Truck BCM is essential for your vehicle’s daily operation, and our service makes the replacement process seamless. This module is a direct replacement for a wide range of part numbers, including 25844480, 25835966, 15943678, 20939137, and 22860591.
Installation and Post-Install Considerations
Installation is simple for any DIYer with basic tools. The BCM is typically located under the steering column and can be swapped in under 5 minutes. While the module is plug-and-play for most functions, please be aware of two potential post-installation procedures. If the airbag light remains on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ function. Additionally, some models may require a ‘Brake Pedal Position Relearn’ to ensure proper brake light and traction control operation. With no core charge, you can keep your old part without any hassle.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the central computer for your vehicle’s body electronics. It manages non-engine related functions like power windows, locks, lights, wipers, the security system, and the HVAC climate control system.
Do I need to program this module after installation?
No. This module comes pre-programmed to your vehicle’s VIN. This allows for a simple plug-and-play installation without requiring a trip to the dealership for expensive programming.
What if the airbag light is on after I install the new BCM?
If the airbag light is on, it means the new BCM needs to be synced with the airbag system’s SDM. This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure. This is a simple sync, not a full programming.
Is this part difficult to install?
No, the installation is very straightforward. The BCM is located under the steering column and is held in by simple clips or bolts. The entire process typically takes less than 5 minutes.
How do I know if this BCM will fit my truck?
This module fits a wide range of 2007-2013 GM trucks and SUVs, including the Silverado, Sierra, Tahoe, Yukon, Suburban, and Escalade. Please verify the part number and check the detailed fitment list on this page to confirm compatibility.
Is there a core charge for my old part?
There is absolutely no core charge. You can keep your old module without any need to send it back, saving you time and money.