Restore Your Cadillac’s Electrical Brain and End the Frustration
If your 2007-2009 Cadillac SRX is acting haunted—with flickering dashboard lights, power windows with a mind of their own, or a radio that cuts out unexpectedly—you’re not alone. After two decades in the garage, I’ve seen these exact symptoms hundreds of times. The culprit is almost always a failing Body Control Module (BCM). Think of the BCM as the central nervous system for your vehicle’s comfort and convenience features. When it starts to fail, it sends scrambled signals, leading to the maddening electrical gremlins you’re experiencing. This isn’t just an annoyance; it can affect security systems and even brake light functionality.
This isn’t a generic, off-the-shelf part. We provide a genuine, VIN-programmed solution. You give us your vehicle’s VIN during checkout, and our technicians flash this BCM with the latest GM-certified software specific to your SRX. This means it arrives at your door ready for installation, saving you a costly trip to the dealership for programming. It’s the most direct path to getting your luxury SUV back to functioning as it should.
A Technician’s Notebook
I remember a 2008 SRX that came into the shop with a laundry list of bizarre issues. The owner was frustrated because the power locks would cycle randomly while driving, the interior lights would stay on, and the security light was flashing. He’d already replaced the battery and checked fuses. After hooking up the scan tool, I saw multiple U-series communication codes, pointing to a network problem. Instead of chasing wires for hours, experience told me to look at the BCM. We swapped in a pre-programmed module, and instantly, every single issue was resolved. It’s a classic case where the 2007-2009 SRX BCM was the single point of failure for a dozen different symptoms.
Common Signs of a Failing SRX Body Control Module
A faulty BCM can manifest in numerous ways. If you’re noticing any of the following, it’s a strong indicator that your module needs replacement. A scan tool might show communication codes like U0140, U0155, or B1001.
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security system acting up, or the vehicle not starting due to a false anti-theft trigger.
- ✔ Radio or infotainment system randomly shutting off or behaving erratically.
- ✔ False warning lights on the instrument cluster (e.g., airbag, ABS, traction control).
- ✔ Wipers operating intermittently or not parking in the correct position.
A Straightforward Guide to Your BCM Swap
For the confident DIYer, replacing the BCM in your SRX is a manageable job. The module is typically located in the left-hand (driver’s side) of the dash. While specific steps can vary, here is a general guide.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before starting work.
- Locate the BCM: On the 2007-2009 SRX, the BCM is located on the left side of the dash. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM and remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Reconnect all electrical connectors, ensuring they click securely into place.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Relearns (If Needed): Start the vehicle and check all functions. As noted in our policies, you may need a professional scan tool to perform an ‘Airbag System Sync’ or ‘Brake Pedal Position Relearn’ if related warning lights appear.
Verified Compatibility for Your GM Vehicle
This BCM, part number 15921353, is a direct replacement for a wide range of GM vehicles. While this listing is focused on the 2007-2009 SRX BCM, it also fits the models listed below. Always match your original part number to the list to ensure perfect compatibility. This module replaces the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15948438, 15948439, 20815898, and many more.
ACADIA 07-12, AVALANCHE 1500 10, CAPRICE 11-13, CAPTIVA SPORT 12, CTS 08-13, DTS 06-11, ENCLAVE 08-12, EQUINOX 07-09, ESCALADE 10, EXPRESS VANS 08-12, G8 08-09, HUMMER H2 08-09, IMPALA 06-13, LUCERNE 06-11, MONTE CARLO 06-07, OUTLOOK 07-10, SAVANA VANS 08-12, SRX 07-09, STS 10, SUBURBAN 1500 10, TAHOE 10, TORRENT 07-09, TRAVERSE 09-12, VUE 08-10, YUKON 10.
Note: This is a partial list. Please verify your part number.
Frequently Asked Questions
What is a Body Control Module (BCM)?
The BCM is a computer in your vehicle that controls many of the non-engine related functions, such as power windows, locks, lights, wipers, security system, and radio. It’s the command center for passenger comfort and convenience features.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings for your specific vehicle’s options and features. This ensures it works correctly right out of the box, eliminating the need for expensive dealer programming.
Is this part difficult to install myself?
For someone with basic mechanical skills, it’s a very achievable job. The main tasks are removing a dash panel and swapping electrical connectors. The most important part is that our pre-programming service handles the complex software side of the repair.
What is an ‘Airbag System Sync’ and will I need to do it?
Sometimes, after replacing the BCM, the new module needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). This is called ‘Setup SDM Primary Key in BCM’. You will only need to do this if the airbag warning light is on after installation. It requires a professional-grade scan tool.
Do I have to send my old BCM back?
No. We do not require you to return your original module. There is no core charge associated with this purchase, which saves you the hassle and cost of return shipping.