Restore Full Electrical Function to Your Vehicle
Are you battling frustrating and unpredictable electrical problems in your Cadillac SRX or other GM vehicle? Flickering lights, unresponsive power windows, or a security system that acts on its own are common signs of a failing Body Control Module (BCM). The BCM acts as the central command center for your vehicle’s body electronics, and when it malfunctions, it can create a cascade of confusing issues. This replacement Body Control Module, part number 20864768, is the definitive solution to restore your vehicle’s electronic stability and performance.
Unlike a generic module from a dealership or salvage yard, this unit comes fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). This critical step ensures seamless integration with your vehicle’s existing systems, eliminating the need for expensive dealership programming. Simply provide us with your VIN upon purchase, and we’ll handle the software flashing with the latest GM updates before it ships. This makes the installation process as close to plug-and-play as possible, getting you back on the road faster.
From the Diagnostic Bay
We had a 2008 Cadillac SRX come into the shop with a list of gremlins that would make your head spin. The owner reported that the radio would sometimes not turn on, the driver’s side power window worked intermittently, and the anti-theft light would flash randomly while driving. Our initial checks of fuses and wiring harnesses came up empty. Everything looked fine. However, connecting our diagnostic scanner revealed multiple ‘Loss of Communication’ codes with the BCM. We knew right away where the problem was. A faulty BCM was corrupting the data network. After installing a VIN-programmed module like this one, every single phantom issue vanished. It’s a perfect example of how one central component can cause widespread, seemingly unrelated problems.
Solving Your 2007-2009 SRX Body Control Module Faults
A failing 2007-2009 SRX Body Control Module is often the root cause of issues that can be difficult to trace. Because the BCM governs so many different functions, its failure symptoms can be diverse and often misdiagnosed as individual component failures. By replacing the BCM, you are addressing the core of the problem, not just patching the symptoms. This module is a direct-fit replacement, ensuring that all connectors and mounting points align perfectly with your factory setup.
Common Symptoms of a Failing BCM:
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior dome lights or exterior lights staying on or not turning on at all.
- ✔ Malfunctioning windshield wipers and washers.
- ✔ The security system or keyless entry system working intermittently or failing completely.
- ✔ Horn sounding unexpectedly or not working when pressed.
- ✔ Warning lights appearing on the dashboard without a clear cause.
- ✔ Communication errors with other vehicle modules, leading to a no-start condition in some cases.
Installation and Post-Install Considerations
Once you receive your VIN-programmed BCM, the physical installation is straightforward for a knowledgeable DIYer or any professional technician. However, due to the complexity of modern vehicle systems, a couple of post-installation procedures may be necessary. These are not defects but rather standard vehicle security and safety handshakes between modules.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is required. This syncs the new BCM with the existing airbag module (SDM) and requires a professional-grade scan tool.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure proper operation of the brake lights and traction control system.
We ensure this module is programmed with the latest software from GM, providing a reliable and long-lasting repair for your vehicle. There is no core charge, so you can keep your original module.
This module is a direct replacement for a wide range of part numbers, including: 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, and 95151084.
Frequently Asked Questions
What does the Body Control Module do?
The Body Control Module (BCM) is a computer in your vehicle that controls and monitors a wide variety of non-engine-related functions. This includes power windows, power locks, interior and exterior lighting, security systems, wipers, and more. It’s the brain for your car’s body electronics.
Do I need to program this BCM?
No. This BCM comes pre-programmed to your vehicle’s VIN. You must provide us with your VIN after purchase so we can load the correct software and vehicle-specific settings before we ship the part to you. This saves you a trip to the dealership.
Where is the BCM located on a 2007-2009 Cadillac SRX?
On the 2007-2009 Cadillac SRX, the Body Control Module is typically located on the left-hand (driver’s side) of the dash, often behind the lower dash panel near the steering column.
What happens if I forget to provide my VIN?
We cannot ship your order without your vehicle’s VIN. The programming process is essential for the part to function correctly in your car. We will contact you to request the VIN, but this may delay your order.
Will this fix my car’s specific electrical problem?
This module is the solution for issues directly caused by a faulty BCM. If you are experiencing problems with multiple systems like power locks, windows, and interior lights simultaneously, a bad BCM is the most likely culprit. However, we always recommend proper diagnosis to confirm the BCM is the point of failure.
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 your vehicle’s airbag system (SDM). A procedure called ‘Setup SDM Primary Key in BCM’ must be performed with a professional scan tool to sync the modules and turn off the light.