Is Your GM Vehicle Acting Possessed?
If you’re dealing with flickering lights, malfunctioning power windows or locks, a security system that acts on its own, or random warning lights on your dash, the culprit is often a failing Body Control Module (BCM). The BCM is the central computer for your vehicle’s body electronics, and when it starts to fail, it can cause a wide range of frustrating and unpredictable electrical problems. Don’t let a faulty BCM leave you stranded or dealing with constant annoyances. Restore full functionality and peace of mind with our direct-fit replacement module.
From the Diagnostic Bay
We had a 2009 Chevy Traverse come in with the classic ‘haunted car’ symptoms. The owner said the interior lights would stay on, draining the battery overnight, and the power liftgate would open randomly. After checking the battery and alternator, our diagnostics pointed straight to an internal BCM failure. Instead of a costly trip to the dealer for a new module and programming fees, we installed one of our pre-programmed units. The customer provided their VIN, we flashed the module, and the installation was a simple swap. All the electrical gremlins were gone, and the Traverse was back to normal the same day.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ Vehicle security system engaging randomly or not at all.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Instrument cluster gauges behaving erratically or going dark.
- ✔ Key fob commands being ignored.
- ✔ Unexplained battery drain when the vehicle is off.
Why Choose Our Pre-Programmed GM Body Control Module?
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. Simply provide your vehicle’s 17-digit VIN during checkout, and our technicians will program the module with the latest GM-certified software specific to your car or truck. This ensures that all the original features your vehicle came with will work as intended, right out of the box. This eliminates the need for expensive programming with a specialized scan tool after installation, saving you time and money.
This module is a direct replacement for a wide range of part numbers, including 15276271, 25892622, 20815898, and many more. Please verify your part number or check the fitment list to ensure compatibility.
Important Post-Installation Information
While our BCMs are designed for a straightforward installation, some vehicle systems may require a ‘handshake’ with the new module. In some cases, you may need a professional scan tool for the following procedures:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary to sync the systems.
- Brake Pedal Position Relearn: To ensure correct brake light and traction control operation, a brake pedal position sensor relearn might be required.
Always consult a factory service manual or a qualified technician if you are unsure about these procedures.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that manages and controls your vehicle’s electronic accessories that are not related to the engine. This includes power windows, locks, lights, wipers, security system, and instrument cluster functions.
How does the VIN programming work?
After you place your order, you provide us with your vehicle’s 17-digit VIN. Our technicians use this number to load the exact software and configuration for your specific vehicle onto the BCM. This makes the unit ready for installation upon arrival.
Is this part difficult to install?
For someone with moderate mechanical skill, the physical replacement is typically straightforward. The BCM is usually located under the dash on the driver’s or passenger’s side. The main benefit of our product is that the complex software programming is already done for you.
Do I need to send my old BCM back?
No. This purchase does not require a core return. There is no core charge, so you can keep your original module.
What if my airbag light is on after I install the new BCM?
This is a known possibility. The new BCM needs to be electronically introduced to the airbag system’s computer (SDM). A qualified technician with a professional diagnostic tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.