Are you battling a frustrating array of electrical gremlins in your truck? From flickering lights and malfunctioning power windows to a dead HVAC system or a persistent airbag light, these are classic signs of a failing Body Control Module (BCM). The BCM acts as the central command center for your vehicle’s body electronics. When it malfunctions, it can cause widespread and seemingly unrelated issues. This VIN-programmed BCM, compatible with part number 15878753, is the direct-fit, reliable solution to restore your truck’s full functionality and end the diagnostic guesswork.
Common Symptoms of BCM Failure
- ✔ Unresponsive or erratic power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that won’t turn on or off.
- ✔ HVAC system failure, including an inoperative blower fan or inability to change temperature.
- ✔ Airbag warning light illuminated on the dash, often with a DTC B1001.
- ✔ Vehicle security system acting up, causing no-start or stalling conditions.
- ✔ Intermittent operation of windshield wipers.
- ✔ A cluster of seemingly unrelated electrical issues occurring simultaneously.
Why Choose Our Sierra 3500 Body Control Module?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle out of the repair by programming the module to your vehicle’s specific VIN before it ships. This ensures all systems communicate correctly right out of the box, eliminating the need for an expensive trip to the dealership for programming. This is the most efficient way to get your Sierra 3500 Body Control Module replaced and your truck back to 100%.
- ✔ Plug & Play Installation: Pre-programmed with the latest GM software updates for your specific VIN. No dealer visit required.
- ✔ Restores Full Functionality: Corrects common electrical failures and DTCs, restoring control over your vehicle’s essential comfort and safety features.
- ✔ OEM-Grade Quality: Built to meet or exceed original equipment standards for long-lasting durability and reliable performance.
- ✔ No Core Charge: Keep your old part. We don’t require a core return, saving you time and money.
- ✔ Wide Interchangeability: A direct replacement for a wide range of part numbers, including 25844480, 25835966, 15263363, 15263497, 15284816, 15943678, 20939137, and more.
Installation & Post-Install Notes
The BCM is typically located under the driver’s side dashboard, near the steering column, making physical replacement a quick job. However, after installing your new Sierra 3500 Body Control Module, certain vehicles may require a ‘Setup SDM Primary Key in BCM’ procedure if the airbag light is on. This syncs the new BCM with the airbag system and requires a professional-grade scan tool. In some cases, a Brake Pedal Position relearn may also be needed. Always check for and repair any poor ground connections during installation, as they are a common cause of repeat BCM failure.
Frequently Asked Questions
Is this BCM already programmed?
Yes, this Body Control Module is expertly programmed to your vehicle’s VIN before shipping. This ensures it works correctly right out of the box without requiring a trip to the dealership for additional programming.
Where is the BCM located on my 2007-2011 Sierra 3500?
The BCM is located inside the cabin, under the driver’s side of the dashboard, typically near the steering column.
Will I need a special tool to complete the installation?
While the physical swap requires basic tools, you may need a professional diagnostic scan tool if your airbag warning light remains on after installation. This is for performing the ‘Setup SDM Primary Key in BCM’ procedure to sync the modules.
What happens if I don’t replace a failing BCM?
Ignoring a failing BCM can lead to worsening electrical problems, potential security system lockouts causing a no-start condition, and the failure of critical safety systems like exterior lights or airbags.
Is there a core charge for this part?
No, there is no core charge. You can keep your old module without any penalty or need to return it.