Is Your Truck Experiencing Strange Electrical Problems?
The Body Control Module (BCM) is the central command center for your truck’s body electronics. When it begins to fail, you can experience a frustrating array of issues, from flickering lights and malfunctioning windows to security system errors and even no-start conditions. This genuine GM Body Control Module, interchangeable with part number 15926094, is the definitive solution to restore your vehicle’s electronic systems to factory-perfect operation. Specifically designed for 2007-2013 GM trucks and SUVs like the GMC Sierra, Chevrolet Silverado, and Cadillac Escalade, this module arrives pre-programmed to your vehicle’s specific VIN, eliminating the need for expensive dealership visits.
From the Diagnostic Bay
We had a 2013 Sierra 2500 come in with a classic case of BCM failure. The customer reported that his interior lights would stay on intermittently, draining the battery overnight. On top of that, his driver-side power window had stopped working completely. After confirming power and ground to the window motor were good, we scanned the BCM and found multiple communication and circuit fault codes. A visual inspection of the original BCM revealed no obvious damage, but the internal logic had clearly failed. We installed one of our VIN-programmed modules, and within minutes, the lights functioned correctly and the window was back in action. It’s a common failure point, but thankfully, a straightforward fix with the right part.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that won’t turn on or off correctly.
- ✔ Malfunctioning HVAC controls or an inoperative blower motor.
- ✔ An active security system light or an engine that won’t start due to anti-theft errors.
- ✔ An airbag warning light on the dash, often with a DTC B1001.
- ✔ Unpredictable behavior from windshield wipers or radio controls.
- ✔ Multiple communication-related Diagnostic Trouble Codes (DTCs).
The Benefits of Our Programmed 2013 Sierra 2500 BCM
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and extra expense out of the repair process. By programming the module to your vehicle’s VIN before it ships, we ensure that all the specific options and security information your truck came with are correctly loaded. This allows for a true plug-and-play installation.
Installation is simple and can typically be completed in under 15 minutes with basic hand tools. The BCM is located under the driver-side dashboard, near the steering column. After swapping the module, some vehicles may require a couple of simple procedures. If your airbag light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ function. In some cases, a ‘Brake Pedal Position Relearn’ may also be necessary. Always consult a service manual for your specific model if you are unsure.
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM acts as the main computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, door locks, interior and exterior lighting, the security system, wipers, and HVAC blower controls.
Does this module require programming at the dealership?
No. We program the module to your vehicle’s VIN before shipping. This makes the installation plug-and-play and saves you from a costly trip to the dealer.
Will this BCM fit my 2013 GMC Sierra 2500?
Yes, this module is a direct fit for the 2013 Sierra 2500 and is also compatible with a wide range of 2007-2013 GM trucks and SUVs. It interchanges with numerous part numbers, including 25844480, 25835966, and 20939137, ensuring broad compatibility.
My airbag light is on after installation. What should I do?
This is a common occurrence. The new BCM needs to be synced with the airbag system’s Sensing and Diagnostic Module (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure, which will turn off the light.
Is there a core charge for this part?
No, there is no core charge. You can keep your old module without any hassle or need to return it.