Is Your Vehicle Plagued by Electrical Gremlins?
If you’re experiencing bizarre electrical issues like flickering lights, malfunctioning power windows or locks, an unresponsive radio, or random warning lights on your dash, a failing Body Control Module (BCM) is the likely culprit. The BCM acts as the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a wide range of frustrating and unpredictable problems. Don’t let a faulty module compromise your vehicle’s functionality and safety.
From the Diagnostic Bay
We once had a 2012 Impala come in where the customer had already replaced the driver’s side window motor twice, but the window would still work intermittently. They were convinced the new motors were defective. After a quick scan, we found communication fault codes pointing to the BCM. The module wasn’t sending a consistent signal to the motor. We installed a VIN-programmed BCM, and the problem was solved instantly. It’s a classic case of treating the cause, not just the symptom, and it highlights how a single failing module can create a cascade of seemingly unrelated issues.
Common Symptoms of a Failing BCM
- ✔ Power windows, door locks, or mirrors working erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security system or keyless entry malfunctioning.
- ✔ Instrument cluster gauges behaving strangely or warning lights appearing for no reason.
- ✔ Radio or climate control systems not functioning correctly.
- ✔ Vehicle failing to start due to security system lock-out.
The Plug-and-Play Solution: A Programmed Caprice Body Control Module
Replacing the BCM used to mean a costly trip to the dealership for installation and programming. Our solution eliminates that hassle. This Body Control Module, compatible with part number 20864767 and many others, arrives at your door pre-programmed with the latest GM software specifically for your vehicle. All we need is your Vehicle Identification Number (VIN) at checkout. This ensures that the module communicates perfectly with your car’s existing systems right out of the box, restoring full functionality without the need for expensive dealer tools.
Post-Installation Information
While this module is designed for a straightforward installation, some vehicles may require minor post-installation procedures to ensure all systems are perfectly synchronized. These are typically simple and can be performed by a qualified technician with a professional scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the new module with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure proper operation of the brake lights and traction control system.
Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
Guaranteed Fitment
This module is a direct replacement for a wide range of GM vehicles. Please verify your original part number against the list below. This part is a confirmed fit for the 2011-2013 Caprice and many other models.
This computer will fit 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
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that controls most of your vehicle’s non-engine related electronic functions. This includes power windows, locks, lights, wipers, the security system, and the instrument cluster.
How do I know if my BCM is the problem?
Common signs include multiple, unrelated electrical issues happening at once, such as power windows and the radio failing simultaneously. A diagnostic scan by a professional technician can confirm the BCM is at fault by checking for specific communication error codes.
What do you mean by ‘programmed to my VIN’?
We load the module with the specific software and settings for your vehicle’s exact configuration using the VIN you provide. This ensures it works correctly with your car’s options and security system, making the installation process much simpler.
Is this part difficult to install?
The physical replacement is typically straightforward for someone with moderate mechanical skill, often located under the dash. However, some vehicles may require post-installation procedures like an airbag or brake sensor relearn, which requires a professional scan tool.
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module.
What if my airbag light comes on after installation?
This is a normal possibility. It means the new BCM needs to be electronically introduced to the airbag system. A technician will need to perform a ‘Setup SDM Primary Key in BCM’ procedure with a diagnostic tool to resolve this.