Restore Your Cadillac’s Electrical System with a Reliable BCM
Are you dealing with baffling electrical issues in your 2007-2009 Cadillac SRX? Flickering lights, unresponsive power windows, or random warning messages on the dash are classic signs of a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can turn your driving experience into a frustrating guessing game. In my 20+ years of diagnostics, I’ve seen how a failing BCM can mimic a dozen other problems, leading to wasted time and money on incorrect repairs.
This replacement Body Control Module, part number 15093910, is the definitive solution to get your SRX back to perfect working order. We eliminate the biggest hurdle of module replacement: the expensive and time-consuming trip to the dealership. With our professional Cloning Service, we transfer the critical data from your original module directly to this replacement unit. This ensures seamless integration with your vehicle’s existing systems, including keys and security information. Just send us your VIN after purchase, and we’ll handle the programming before it ships.
A Technician’s Notebook: The SRX with a Mind of Its Own
A customer brought in a 2008 SRX that was driving them crazy. The interior lights would pulse, the radio would cut out, and the power locks worked intermittently. They’d already replaced the battery and checked the main grounds. A quick scan showed a flurry of U-codes, specifically U0140 (Lost Communication With Body Control Module). Instead of spending hours tracing wires for a phantom short, we identified the BCM as the culprit. With our cloning service, the customer was able to perform the swap themselves over the weekend. The new module restored all functions perfectly, saving them hundreds in diagnostic labor and dealer programming fees.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and interior/exterior lights.
- ✔ The security system acting up or preventing the car from starting.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Dashboard warning lights (like the airbag or service vehicle light) staying on.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or B1001.
- ✔ Wipers or climate control operating incorrectly.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery and wait 10-15 minutes to allow all modules to power down completely.
- ✔ Locate the BCM: On the 2007-2009 SRX, the Body Control Module is typically located on the left-hand (driver’s) side of the dash, often near the steering column or behind the lower dash panel.
- ✔ Remove Trim Panels: Carefully remove any plastic trim panels necessary to access the module. These are usually held by clips or small screws.
- ✔ Disconnect and Remove: Unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location and securely plug in all the electrical connectors. You should hear a click as they lock into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the ignition to the ‘On’ position (without starting the engine) and test all body functions—lights, locks, windows, wipers, etc.
- ✔ Perform Relearn Procedures: Start the vehicle. If any warning lights appear (like the airbag light), you may need to perform the post-installation procedures noted below with a compatible scan tool.
Important Post-Installation Steps: While our cloning service makes this process much simpler, some vehicle systems may require a final handshake. The two most common are the Airbag System Sync (Setup SDM Primary Key), which is only needed if the airbag light is on, and the Brake Pedal Position Relearn. These procedures may require a professional-grade diagnostic tool. Always consult your vehicle’s service manual for specific instructions.
Verified Vehicle Compatibility
This module is a direct replacement for part number 15093910 and is interchangeable with a wide range of other GM part numbers. It fits the primary model, the 2007-2009 Cadillac SRX (BCM; LH dash), as well as numerous other vehicles including:
- Cadillac CTS (2008-2013), DTS (2006-2011), Escalade (2010)
- Chevrolet Equinox (2007-2009), Impala (2006-2012), Tahoe (2010), Traverse (2009-2012)
- GMC Acadia (2007-2012), Yukon (2010)
- Buick Enclave (2008-2012), Lucerne (2006-2011)
- Saturn Outlook (2007-2010), Vue (2008-2010)
- Pontiac G8 (2008-2009), Torrent (2007-2009)
- Hummer H2 (2008-2009)
- Chevy Express & GMC Savana Vans (Various years/engines)
This is a partial list. Please verify your original part number against our comprehensive list to ensure perfect fitment.
Frequently Asked Questions
What exactly is the ‘Cloning Service’?
Our Cloning Service involves transferring the essential software and vehicle-specific data (like VIN, key information, and security settings) from your original BCM to the replacement unit. This makes the installation process much smoother and avoids the need for expensive dealer programming.
Why do you need my VIN?
We use your Vehicle Identification Number (VIN) to access the latest GM factory software updates for your specific vehicle. This ensures the BCM we send you has the most current and stable operational programming available, addressing potential factory bugs.
Do I need to send my old BCM to you?
Yes, for the cloning service to work, you will need to ship your original BCM to us. We will perform the data transfer and ship both your original module and the newly programmed replacement back to you. We do not keep your original part.
What tools are required for the installation?
Basic hand tools like a socket set and a trim removal tool are usually all that’s needed for the physical installation. However, depending on your vehicle, a professional bidirectional scan tool may be required for post-installation procedures like the airbag system sync or brake pedal position relearn.
What if I still have issues after installation?
First, double-check all connector plugs to ensure they are fully seated. Second, verify if any of the post-installation relearn procedures are required for your model. If problems persist, it could indicate an issue elsewhere in the vehicle, as BCM-like symptoms can sometimes be caused by wiring or sensor faults.
Is this compatible with other part numbers?
Yes, this module replaces a long list of interchangeable GM part numbers, including 10382479, 15276271, 20815898, 22860591, and many more. Please check the full list in the description to confirm compatibility.