Restore Full Functionality to Your GM Vehicle
Are you battling strange and frustrating electrical problems in your Chevrolet, GMC, Cadillac, or Buick? Issues like flickering lights, malfunctioning power windows and locks, a faulty security system, or even a car that won’t start can often be traced back to a single component: a failing Body Control Module (BCM). The BCM is the central computer for your vehicle’s body electronics, and when it malfunctions, it can cause a cascade of seemingly unrelated problems. This replacement Body Control Module, part number 15276271, is the definitive solution to get your vehicle’s features working reliably again.
Is Your BCM Failing? Common Symptoms:
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ The security system or keyless entry acting up or preventing the car from starting.
- ✔ The radio or instrument cluster display behaving strangely.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Warning lights on the dash with no apparent cause.
- ✔ Intermittent no-start conditions where the engine cranks but won’t fire.
The Easiest Way to Replace Your Programmed GM BCM
Replacing a BCM used to mean a trip to the dealership for expensive programming. We’ve eliminated that step. When you purchase this module, we will flash it with the latest official GM software specifically for your vehicle. All we need is your Vehicle Identification Number (VIN). This ensures that when the part arrives, it’s a true plug-and-play solution, ready to be installed and restore your vehicle’s electronic systems to factory-perfect operation. There is no core charge, so you can keep your old part.
This module is a direct replacement for a wide range of part numbers, including: 10382479, 15093910, 15299986, 15819552, 15828601, 15872388, 20815898, 20921435, 22860591, 25892622 and many more.
Post-Installation Requirements
While our programming handles the critical setup, some vehicles may require simple relearn procedures after installation. These can often be done with a capable bi-directional scan tool. The most common are:
- Airbag System Sync: If your airbag light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed to sync the modules.
- Brake Pedal Position Relearn: This may be required to ensure your brake lights and traction control system function correctly.
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 electronic functions, such as power windows, locks, lights, security system, wipers, and instrument panel displays.
Do I need to get this BCM programmed by a dealer?
No. This is the key benefit of our service. We program the module to your vehicle’s specific VIN before we ship it to you, making it ready for installation right out of the box.
How do I provide my VIN?
After you complete your purchase, you can add your 17-digit VIN to the order notes or send it to us in a message. We cannot ship your part until we have your VIN to complete the programming.
Will this fix my specific electrical problem?
If your vehicle is exhibiting multiple symptoms from the list above, a faulty BCM is the most likely cause. This part is designed to correct those issues. Proper diagnosis is always recommended.
Is there a core charge for my old part?
No, there is no core charge. You are not required to send your original BCM back to us.
What if my airbag light comes on after I install it?
This is a normal possibility. The new BCM needs to be synced with the airbag’s computer (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure with a professional-grade scan tool.