Restore Full Control and End Electrical Frustrations
Is your GMC Sierra 2500 suffering from baffling electrical issues? A failing Body Control Module (BCM) is often the culprit behind problems like flickering lights, unresponsive power windows, erratic door locks, or a dead HVAC system. These aren’t just annoyances; they compromise your truck’s reliability and safety. This VIN-programmed BCM, compatible with part number 15136877, is the definitive, plug-and-play solution to restore your truck’s essential functions and get you back on the road with confidence.
Common Symptoms & Your Solution
If your truck is exhibiting any of the following symptoms, a faulty BCM is the likely cause. This module is engineered to be the direct fix, eliminating guesswork and costly diagnostic time.
- Unresponsive or intermittent HVAC and climate controls.
- Power windows, door locks, or interior lights that work sporadically or not at all.
- The security system acting up, potentially causing a no-start condition.
- An illuminated airbag warning light, often accompanied by DTCs like B1001.
- A host of other electrical gremlins that seem to have no clear source.
By replacing your old unit with our pre-programmed 2003-2007 Sierra 2500 Body Control Module, you’re not just swapping a part—you’re installing a permanent solution that restores communication between your truck’s critical systems.
Features & Benefits
- ✔ Plug & Play Installation: This module arrives pre-programmed to your vehicle’s specific VIN. No expensive trips to the dealership for programming are required. Simply install it and restore functionality in minutes.
- ✔ Eliminate Annoying Electrical Bugs: Put an end to unpredictable behavior from your lights, locks, and windows. Enjoy the peace of mind that comes with a truck that works as it should.
- ✔ Restores Critical Systems: Regain full control over essential functions like the HVAC blower, security system, and wipers, ensuring comfort and safety on every trip.
- ✔ OEM-Standard Quality: Built to meet or exceed original equipment specifications, ensuring a perfect fit and long-lasting durability for your hardworking truck.
- ✔ Wide Compatibility: This BCM is a direct replacement for a range of part numbers, including 15116066, 15136225, 15137393, and more, making it a versatile fix for many GM trucks and SUVs.
- ✔ Warranty Protection: This unit is backed by our one-year replacement warranty.
Expert Diagnostic Tip
Widespread, seemingly unrelated electrical issues are a classic sign of BCM failure. Before you spend time and money chasing individual sensor or switch problems, inspect the BCM. In GMT800 platform trucks like the Sierra, this single component is the central hub for dozens of body functions. Replacing a faulty BCM often resolves multiple issues at once, making it the most efficient and cost-effective repair.
Frequently Asked Questions
What does ‘VIN Programmed’ mean for me?
It means the module is ready to install right out of the box. We flash it with your truck’s unique Vehicle Identification Number (VIN) and the latest GM software before shipping. This ensures all the specific options and security features of your vehicle work correctly without any additional setup or dealer intervention.
Is this installation difficult to do myself?
For most DIYers, this is a straightforward job. The BCM is typically located under the steering column. The process involves disconnecting the battery, unplugging the electrical connectors from the old module, swapping it with the new one, and reconnecting everything. It usually takes less than 15 minutes.
Will this fix my airbag light?
This module can resolve airbag light issues caused by BCM communication errors (like DTC B1001). However, if the light remains on after installation, you may need a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the airbag system with the new module.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your old module, which saves you the time and hassle of shipping it back.
How do I know this is the right 2003-2007 Sierra 2500 Body Control Module for my truck?
This module is a direct fit for the 2003-2007 GMC Sierra 2500 and many other GM models from that era. You can confirm compatibility by matching your old part number to one of the numbers listed in our description (e.g., 15136877, 15116066). When you provide your VIN at checkout, we perform a final verification to guarantee a perfect fit.