Restore Your Vehicle’s Electronic Functions
Are you experiencing bizarre electrical issues in your GM vehicle? Flickering lights, malfunctioning power windows and locks, a security system that acts up, or even a car that won’t start can all point to a single culprit: a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a cascade of frustrating and seemingly unrelated problems. This replacement Body Control Module is the definitive solution to restore your vehicle’s functionality and peace of mind.
From the Diagnostic Bay
We had a 2011 Chevy Impala come in with the strangest symptoms. The owner said the radio would turn on and off by itself, the dome light would stay on, and occasionally the car just wouldn’t crank. He’d already replaced the battery and checked the alternator. After hooking up our scanner, we saw multiple communication errors pointing towards the BCM. Instead of a costly trip to the dealer for a new module and programming fees, we installed one of our VIN-programmed BCMs. The installation took less than an hour, and all the strange electrical gremlins were gone instantly. It saved the customer hundreds of dollars and a lot of headaches.
Symptoms of a Failing GM Body Control Module
- ✔ Erratic or non-functional interior and exterior lights (headlights, taillights, dome lights).
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ Malfunctioning security system or keyless entry.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Intermittent no-start or no-crank conditions.
- ✔ Warning lights on the dashboard, such as the airbag or security light.
- ✔ Wipers operating on their own or not responding to the switch.
The Simple, Reliable Solution: A Programmed GM BCM
Don’t let a faulty module keep you off the road. 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. When you order, simply provide us with your vehicle’s VIN. Our technicians will then program the module with the latest GM-certified software specific to your exact vehicle. This ensures seamless integration and performance right out of the box. This is the most efficient way to get your car back to 100% without a trip to the dealership for expensive programming.
Post-Installation Information
While this module is designed for a straightforward installation, some GM vehicles may require a simple relearn procedure after the new BCM is connected. This is standard for maintaining the integrity of your vehicle’s safety systems.
- Airbag System Sync: If your airbag warning light is illuminated after installation, a professional scan tool will be needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure your brake lights and traction control system function as intended.
Always consult a factory service manual or a qualified technician if you are unsure about any step of the installation or relearn process.
Frequently Asked Questions
What is a Body Control Module (BCM)?
The BCM is a computer in your vehicle that controls and monitors a wide range of electronic functions not related to the engine, such as power windows, locks, lights, wipers, security system, and more.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings for your vehicle’s specific options and features. This ensures the module works correctly right out of the box.
Is this part difficult to install?
For most DIY mechanics, the physical installation is straightforward, typically involving unplugging the old module and plugging in the new one. The location varies by model but is often under the dash. The key benefit of our service is that the complex programming is already done for you.
Will I need to have this programmed by a dealer?
No. This BCM arrives pre-programmed to your VIN. You will not need to take it to a dealer for additional programming, saving you time and money. Some vehicles may require a simple relearn procedure as noted in the description.
What if my original part number isn’t 15819552?
This module is a direct replacement for a wide range of GM part numbers. Please check the full list of compatible part numbers on this page to confirm it will fit your vehicle.