Is Your GM Vehicle Plagued by Baffling Electrical Problems?
The Body Control Module (BCM) is the central command center for your vehicle’s electronic accessories. When it begins to fail, it can cause a cascade of frustrating and seemingly unrelated issues, from flickering lights and malfunctioning power windows to a car that won’t start at all. If you’re dealing with these electrical gremlins in your Chevrolet, GMC, Cadillac, or other GM vehicle, a faulty BCM is the most likely culprit. This isn’t just an inconvenience; it can affect your vehicle’s security and safety.
From the Diagnostic Bay
We had a 2009 Chevy Traverse come into the shop with a classic “haunted car” complaint. The dome lights would stay on, the radio would randomly shut off, and the power locks worked intermittently. The owner had already replaced the battery twice, assuming it was a power drain issue. After a quick diagnostic scan, we traced all the faults back to the BCM. Instead of a costly and time-consuming repair at the dealership, we installed a VIN-programmed module just like this one. The vehicle’s electronics were immediately restored to perfect working order, saving the customer hundreds of dollars and a major headache.
Common Symptoms of a Failing GM BCM
- ✔ Erratic or non-functional interior and exterior lights (headlights, taillights, dome lights).
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ Malfunctioning radio or infotainment system.
- ✔ Security system faults or the alarm going off randomly.
- ✔ Instrument cluster warning lights illuminating without cause (e.g., ABS, Airbag).
- ✔ A no-start condition where the engine cranks but won’t turn over.
- ✔ Rapid battery drain while the vehicle is off.
Why Choose Our Pre-Programmed GM Body Control Module?
Getting your vehicle back to normal shouldn’t be complicated. Our service eliminates the need for expensive dealership visits for programming. We take your vehicle’s VIN and flash this replacement GM Body Control Module with the latest, most stable software directly from GM. This ensures that when the part arrives, it’s ready for installation, communicating perfectly with your vehicle’s other systems right out of the box. This is a direct-fit replacement for a wide range of vehicles and part numbers, including 15828601, 22860591, and many others listed in the fitment guide.
Important Post-Installation Information
While this module is delivered ready for installation, certain vehicle systems may require a simple relearn procedure to sync with the new BCM. This is a normal part of the process.
- Airbag System Sync: If your airbag warning light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure correct brake light and traction control operation.
Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Frequently Asked Questions
What is a Body Control Module (BCM)?
The BCM is a computer in your vehicle that controls and monitors a wide variety of non-engine related functions, such as power windows, locks, lights, security systems, and wipers.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will program the module specifically for your vehicle before we ship it out.
Is this a plug-and-play part?
Yes, this module is programmed to your VIN, making the initial installation plug-and-play. However, as noted, some vehicles may require additional relearn procedures for systems like the airbags or brake sensor to function correctly.
Will this fix my specific electrical problem?
This module will correct issues directly caused by a failing BCM. If you are experiencing several of the symptoms listed, such as erratic lights, lock, and window behavior, it is highly likely that the BCM is the root cause.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module.