Restore Your Cadillac’s Electrical System
Are you chasing down frustrating electrical gremlins in your 2007-2009 Cadillac SRX? One moment the power windows work, the next they don’t. Strange warning lights appear on the dash without reason. These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s comfort and convenience features, and when it malfunctions, it can make your luxury vehicle feel unreliable. This replacement BCM is the definitive solution, arriving pre-programmed with the latest GM software specifically for your vehicle’s VIN. This eliminates the need for an expensive trip to the dealership for programming.
Is Your Cadillac Experiencing These Electrical Glitches?
A faulty BCM can manifest in numerous ways. Over my 20+ years in diagnostics, I’ve seen these modules cause some of the most confusing symptoms. If your SRX is showing any of these signs, the BCM is a primary suspect:
- ✔ Erratic power windows, door locks, or mirrors that work intermittently.
- ✔ Interior or exterior lights flickering, staying on, or not turning on at all.
- ✔ The security system acting up, causing alarm or starting issues.
- ✔ Communication error codes stored in the system (often U-codes like U0140).
- ✔ The radio or climate control display behaving unpredictably.
- ✔ A parasitic battery drain that leaves you with a dead battery overnight.
From the Diagnostic Bay: The Ghost in the Machine
I remember a 2008 SRX that came into the shop with a list of complaints that seemed completely unrelated. The owner said the radio would sometimes shut off, the driver-side window wouldn’t go down, and occasionally the turn signals would stop flashing. He’d already replaced the battery and checked all the fuses. We ran a full diagnostic scan and found a slew of intermittent communication codes pointing to the BCM. Instead of a dozen separate problems, it was one single point of failure. By installing a VIN-programmed BCM like this one, we resolved every single issue in one go, saving the customer hundreds in diagnostic time and parts he didn’t need.
A Straightforward Guide to Your BCM Installation
This module is designed for a direct swap. For the 2007-2009 SRX, the BCM is located behind the dashboard on the driver’s side. While professional installation is always an option, a confident DIYer can perform this replacement.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning.
- Access the Module: Carefully remove the necessary dash trim panels on the lower left-hand (driver’s) side to expose the BCM.
- Disconnect and Remove: Unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount the new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock in place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position and test all body functions—windows, locks, lights, radio, etc.—to ensure proper operation.
Post-Installation Note: In some cases, additional relearn procedures may be needed. If your airbag light is on, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure. A ‘Brake Pedal Position Relearn’ might also be necessary for proper brake light and traction control function. These requirements vary by specific vehicle options.
Guaranteed Fitment for Your GM Vehicle
This BCM is a direct replacement for part number 15093910 and is compatible with a wide range of General Motors vehicles. While this listing is focused on the 2007-2009 Cadillac SRX, it also fits many other models such as the Acadia, Enclave, Traverse, Impala, Express/Savana vans, and more. It is a replacement for 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
Is this BCM truly plug-and-play?
Yes, for most functions. We program it to your vehicle’s VIN before shipping, so it communicates with your car correctly. However, some security systems, like the airbag (SRS), may require a ‘sync’ procedure with a professional scan tool after installation if the warning light appears.
Where do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot program and ship the module without it. You can find your VIN on the driver’s side dashboard or on the door jamb sticker.
What is a core charge? Do I need to send my old part back?
A core charge is a refundable deposit paid for your old part. We have a NO CORE CHARGE policy for this module, so you can keep your original part without any extra fees or hassle.
Where is the BCM located in a 2007-2009 Cadillac SRX?
The Body Control Module is typically located behind the dashboard on the driver’s side (LH dash). You will need to remove the lower dash panel to access it.
What if my airbag light is on after I install the new BCM?
This is not a defect. It means the new BCM needs to be electronically introduced to the airbag system’s computer (SDM). A technician with a compatible high-end scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems and turn off the light.