Restore Full Functionality to Your GM Vehicle’s Electronics
Are you battling frustrating electrical problems in your Chevrolet, GMC, Cadillac, or Buick? Issues like flickering lights, malfunctioning power windows and locks, a faulty security system, or random warning lights on your dash are often signs of a failing Body Control Module (BCM). The BCM acts as the central command center for your vehicle’s body electronics, and when it fails, it can cause a wide range of confusing and unpredictable symptoms. This replacement module is the definitive solution to get your vehicle operating correctly again.
From the Diagnostic Bay
We had a 2011 Chevy Impala come in with the strangest set of symptoms: the radio would turn on and off by itself, the driver’s side power window worked intermittently, and the anti-theft light would stay on, sometimes preventing the car from starting. The customer had already replaced the battery and checked all the fuses. After hooking up our diagnostic scanner, we saw multiple communication error codes pointing back to one source. A faulty BCM was creating a network-wide disruption. Installing a VIN-programmed BCM like this one resolved all the issues in a single repair, saving the customer from chasing down individual component problems that weren’t actually there.
Is Your GM Vehicle Showing These BCM Failure Symptoms?
- ✔ Erratic or non-working interior and exterior lights.
- ✔ Power windows, door locks, or mirrors operating incorrectly or not at all.
- ✔ The security system acting up, causing no-start conditions or false alarms.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Inconsistent windshield wiper operation.
- ✔ Multiple, unrelated warning lights on the instrument cluster (e.g., ABS, Airbag, Traction Control).
- ✔ Rapid battery drain while the vehicle is off.
Why Choose Our Programmed GM 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 pre-programming the module to your vehicle’s specific VIN. This ensures that the BCM has the latest software updates from GM and is configured for the exact options your vehicle was built with. This critical step eliminates the need for expensive programming at a dealership, making the installation process much simpler for you or your mechanic.
This module is a direct replacement for the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084.
Installation and Post-Install Procedures
After you purchase, simply provide us with your vehicle’s VIN. We will program the module before shipping it to you. While the programming is done, some vehicles may require additional relearn or synchronization procedures after installation. These can include:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: A recalibration of the brake pedal position sensor may be necessary to ensure proper brake light and traction control functionality.
Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related functions, such as power windows, locks, lights, wipers, security system, and more. It’s the brain for your car’s body electronics.
Is this part truly plug-and-play?
Because we program the module to your VIN before shipping, it is as close to plug-and-play as possible. However, as noted, some vehicles may require simple relearn procedures for systems like the airbags or brake sensor, which can be done with a capable scan tool.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship the module until we receive and program it with your VIN.
Where can I find my VIN?
Your VIN is located on a small plate on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, and on your vehicle’s registration and insurance documents.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module.
Will this fix my specific electrical problem?
This module will correct issues directly caused by a faulty BCM. If you are experiencing any of the symptoms listed above, a failing BCM is the most likely cause. Proper vehicle diagnosis is always recommended.