Are you dealing with baffling electrical issues in your 2007-2009 Cadillac SRX? Flickering lights, power windows with a mind of their own, or a security system that won’t cooperate are classic signs of a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can turn your driving experience into a frustrating guessing game. This isn’t just an inconvenience; it can affect vehicle security and safety systems.
This is your reliable, straightforward solution. We offer a replacement BCM, part number 15948438, that arrives at your doorstep pre-programmed to your vehicle’s exact VIN. We handle the complex part by loading the latest, most stable GM software, so you don’t have to. This eliminates the need for expensive dealership visits and specialized programming tools, putting the power back in your hands.
A Technician’s Notebook
I remember a 2008 SRX that came into the shop with a laundry list of complaints from the owner. The radio would cut out, the driver’s side window wouldn’t go down, and the dome lights stayed on, draining the battery. The owner had already replaced the window switch and checked fuses. After connecting my scan tool, I saw a dozen communication codes (U-codes) pointing to a network issue. Instead of chasing individual components, we went straight to the source: the BCM. A failing BCM often creates these ‘ghost’ problems across multiple systems. Swapping in a VIN-programmed module cleared every single fault code and restored all functions instantly. It’s a prime example of how fixing the ‘brain’ solves the seemingly unrelated symptoms.
Is Your SRX Showing These Symptoms?
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights staying on or not turning on at all.
- ✔ The anti-theft or security system malfunctioning, causing no-start conditions.
- ✔ False warnings on the dashboard information center (DIC).
- ✔ Communication error codes, such as U0140, U0155, or other U-series codes, when scanned.
- ✔ Intermittent operation of the radio or climate controls.
A Straightforward Guide to Installation
Installing your pre-programmed 2007-2009 SRX Body Control Module is a manageable job for a confident DIYer. The BCM in the SRX is typically located on the left (driver’s) side of the dash.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Access the Module: You will likely need to remove the lower dash panel or knee bolster under the steering column to gain access to the BCM.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old module from its mounting bracket.
- Install the New BCM: Mount your new, VIN-programmed BCM in the same location and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting the engine) and test all body functions: windows, locks, lights, wipers, etc.
Important Post-Installation Steps
While our programming handles the heavy lifting, some vehicle systems may require a ‘handshake’ with the new BCM. Please be aware of the following:
- Airbag System Sync: If the airbag warning light is illuminated 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: On some models, a brake pedal position sensor relearn may be necessary to ensure proper brake light and traction control operation.
Disclaimer: Procedures can vary. We always recommend consulting a factory service manual or a certified technician for your specific vehicle.
Verified Vehicle Compatibility
This BCM is a direct replacement for part number 15948438 and is compatible with a wide range of GM vehicles. While this listing is focused on the 2007-2009 SRX Body Control Module, it also fits the following models. Please verify your original part number from the extensive list below.
Fits Models Including: Acadia (07-12), Avalanche (10), Caprice (11-13), Captiva Sport (12), CTS (08-13), DTS (06-11), Enclave (08-12), Equinox (07-09), Escalade (10), Express Van (08-12), G8 (08-09), H2 (08-09), Impala (06-13), Lucerne (06-11), Monte Carlo (06-07), Outlook (07-10), Savana Van (08-12), SRX (07-09), STS (10), Suburban (10), Tahoe (10), Torrent (07-09), Traverse (09-12), Vue (08-10), Yukon (10).
Frequently Asked Questions
Do I need to do any programming myself?
No. This Body Control Module comes fully programmed to your vehicle’s VIN with the latest GM software updates before it is shipped. Just provide your VIN during checkout.
Is there a core charge or do I need to return my old BCM?
There is absolutely no core charge. You can keep your original module.
What tools are required for the installation?
Basic hand tools like a socket set and screwdrivers are typically all that’s needed to access and replace the BCM. No special programming tools are required.
Will this fix my ‘Service Theft System’ message?
A failing BCM is a very common cause of security system faults and messages like ‘Service Theft System.’ While not a guarantee for every case, replacing a faulty BCM often resolves these issues.
What if my original part number is not 15948438 but is on the list?
If your module’s part number is on our interchangeable list, this BCM is the correct replacement for your vehicle. We program it to function perfectly for your specific model.