Restore Full Control Over Your Truck’s Electronics
If you’re dealing with bizarre electrical problems in your GMC Sierra HD, you’re not alone. One day the power windows work, the next they don’t. The HVAC blower motor has a mind of its own, or a persistent airbag light refuses to go away. These aren’t random glitches; they’re classic signs of a failing Body Control Module (BCM). As the central command for your truck’s body electronics, a faulty BCM can cause a cascade of frustrating issues. This OEM-quality Body Control Module, part number 22860591, is the definitive solution for your 2007-2011 Sierra 2500 BCM problems, arriving pre-programmed to your truck’s specific VIN for a true plug-and-play repair.
Forget about expensive dealership visits and the hassle of scheduling programming appointments. We handle the complex part for you. Simply provide your vehicle’s VIN at checkout, and our technicians will flash the module with the latest GM software updates. This ensures all factory-installed options on your Sierra 2500 work correctly right out of the box, restoring the reliability you depend on for work and daily driving.
Is Your Sierra HD Showing These Electrical Faults?
A failing BCM can manifest in numerous ways. Over my 20 years of diagnostics, I’ve seen these modules cause some of the most confusing symptoms. If your truck is experiencing any of the following, a faulty BCM is the likely culprit.
- ✔ Non-functional or erratic power windows, door locks, or interior/exterior lighting.
- ✔ The air conditioning or heater blower motor works intermittently or not at all.
- ✔ An active airbag warning light on the instrument cluster, often with a Diagnostic Trouble Code (DTC) like B1001 stored.
- ✔ Security system problems, including no-start conditions or random alarm activation.
- ✔ Unexplained battery drain when the vehicle is off.
- ✔ Communication errors with other modules, leading to various warning lights.
A Straightforward Guide to Installation
One of the best parts about this solution is its simplicity. For the average DIYer or professional tech, this is a quick and satisfying repair that gets a truck back to 100% functionality in minutes.
- Safety First: Always disconnect the negative terminal from your truck’s battery before working on any electronic components.
- Locate the BCM: On most 2007-2011 Sierra 2500 models, the BCM is located under the driver’s side of the dashboard, near the steering column. It’s a black box with several large electrical connectors.
- Remove the Old Module: Carefully unplug all wiring harnesses from the old BCM. They have release tabs that need to be depressed. Once unplugged, unclip or unbolt the module from its mounting bracket.
- Install the New Module: Seat your new, pre-programmed BCM into the mounting bracket and securely plug in all the wiring harnesses. You should hear a ‘click’ as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Start the truck and test all functions: lights, wipers, windows, door locks, and HVAC system.
- Post-Install Procedures: If the airbag light is on, perform the ‘Setup SDM Primary Key in BCM’ procedure using a compatible high-level scan tool. A brake pedal position relearn may also be required on some models.
Verified Fitment for Your GM Truck or SUV
This module is a direct replacement for part number 22860591 and is interchangeable with a wide range of other GM part numbers, including 25844480, 25835966, 15943678, 20939137, and more. It provides guaranteed compatibility for the following vehicles:
SIERRA 3500 PICKUP 07 (new style, smooth door skin), 08-11 Body Control (BCM)
SILVERADO 2500 PICKUP 07 (new style, smooth door skin), 08-11 Body Control (BCM)
SILVERADO 3500 PICKUP 07 (new style, smooth door skin), 08-11 Body Control (BCM)
AVALANCHE 1500 07-11 Body Control (BCM)
ESCALADE & ESCALADE ESV/EXT 07-11 Body Control (BCM)
SIERRA 1500 PICKUP 07 (new style, smooth door skin), 08-11 Body Control (BCM)
SILVERADO 1500 PICKUP 07 (new style, smooth door skin), 08-11 Body Control (BCM)
SUBURBAN 1500/2500 07-11 Body Control (BCM)
TAHOE 07-11 Body Control (BCM)
YUKON & YUKON XL 1500/2500 07-11 Body Control (BCM)
This is not an exhaustive list. If your part number is listed as an interchange, this module will work for you. By ordering this pre-programmed 2007-2011 Sierra 2500 BCM, you are choosing a reliable, hassle-free fix that restores your truck to its factory-perfect condition.
Frequently Asked Questions
What does ‘VIN Programmed’ actually mean?
It means we load your truck’s unique Vehicle Identification Number (VIN) and its specific factory options into the module before we ship it. This makes the BCM a plug-and-play part, eliminating the need for expensive programming at a dealership.
Is this a difficult part to install myself?
Not at all. For most people with basic tools, this is a 5-10 minute job. The BCM is easily accessible under the driver’s side dashboard. No special tools are required for the physical swap.
Why is my airbag light still on after installation?
This is normal in some cases. The new BCM needs to be electronically ‘introduced’ to the airbag’s computer (SDM). This is done with a ‘Setup SDM Primary Key’ procedure, which can be performed with most professional-grade scan tools. It is not a fault with the part.
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your old module, which saves you the time and expense of return shipping.
Will this fix my intermittent HVAC fan?
Yes, in most cases. The BCM directly controls the logic for the HVAC system, including the blower motor speed commands. If the blower motor resistor has already been checked or replaced, a faulty BCM is the next most common cause.