Get Your Truck Back to 100%
Is your GMC Sierra 2500 plagued by frustrating electrical problems? A faulty Body Control Module (BCM) is often the culprit, causing a cascade of issues that can make your reliable workhorse feel unpredictable. This VIN-programmed BCM is the definitive solution, designed to restore full functionality and get your truck back on the road without a costly trip to the dealership. It arrives ready for a true plug-and-play installation, pre-configured to your truck’s specific identity.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing BCM is the likely cause. This module is engineered to resolve these exact issues:
- Intermittent or non-working power windows, door locks, or mirrors
- HVAC and climate control systems behaving erratically
- Headlights, taillights, or interior lights failing to operate correctly
- An active airbag warning light, often with DTC B1001
- Security system malfunctions or unexpected alarm triggers
- Strange electrical behavior, stalling, or communication errors between modules
Installing this pre-programmed 2007-2011 Sierra 2500 BCM 20939138 is the most direct and reliable way to eliminate these electrical gremlins and restore the dependable performance you expect from your truck.
Features & Benefits
- ✔ Plug & Play Installation: This module is professionally programmed to your vehicle’s VIN number. This critical step ensures it communicates perfectly with your truck’s existing systems right out of the box, eliminating the need for dealership programming.
- ✔ Restores Full Functionality: Regain complete and reliable control over your truck’s essential body electronics, from the power locks and windows to the climate control and lighting systems.
- ✔ OEM-Grade Quality: Built to meet or exceed original equipment standards for performance and durability, ensuring a long-lasting and dependable repair for your vehicle.
- ✔ Clear Common DTCs: A correctly programmed BCM is the key to resolving a wide range of diagnostic trouble codes related to body, security, and communication systems.
- ✔ No Core Charge: We don’t require you to send back your old part, saving you time, hassle, and the cost of a core deposit.
- ✔ Guaranteed Performance: This unit is backed by our one-year replacement warranty.
Expert Insight: Why VIN Programming is Non-Negotiable
As a technician with over two decades of experience, I’ve seen countless vehicle owners waste time and money on unprogrammed modules. A BCM is the central nervous system for your truck’s body electronics. Without being programmed to your specific VIN, it’s like putting a brain in that doesn’t speak the right language. It simply won’t communicate correctly with the Engine Control Module, airbag system, or anti-theft system. Our pre-programming service ensures all components sync up seamlessly, which is the secret to a successful, hassle-free repair that lasts.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer in your vehicle that controls and monitors a wide range of electronic accessories not related to the engine. This includes power windows, door locks, interior and exterior lighting, wipers, the security system, and the HVAC (climate control) system.
Is this BCM difficult to install?
Installation is typically straightforward for those with basic mechanical skills. The BCM is usually located under the driver’s side dashboard, near the steering column. Because our modules come pre-programmed, the physical replacement is the only step required for most functions to be restored. It generally takes less than 15 minutes.
Will I need to do anything after installing this 2007-2011 Sierra 2500 BCM 20939138?
In most cases, no further action is needed. However, if your airbag warning light was on before and remains on after installation, a simple ‘Setup SDM Primary Key’ procedure may need to be performed with a professional scan tool to sync the new BCM with the airbag system. This is a quick procedure for any qualified technician.
Do I need to send my old part back?
No. We do not require a core return. You can keep your old module, which saves you the hassle and expense of shipping it back.
How do I know this is the correct part for my truck?
This module is a direct replacement for a wide range of GM trucks and SUVs from 2007-2013. You can confirm fitment by matching your vehicle’s year, make, and model in our compatibility chart or by matching part number 20939138 (or any of the interchangeable numbers listed) to your original BCM.