Restore Full Electrical Function to Your Cadillac
Are you dealing with baffling electrical gremlins in your 2007-2009 Cadillac SRX? Flickering lights, power windows with a mind of their own, or a security system that randomly acts up? These are classic signs of a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can cause widespread and frustrating issues. This isn’t just an annoyance; it’s a breakdown in your vehicle’s core communication system. We offer a reliable, direct-fit solution: a replacement BCM, part number 20864768, that arrives fully programmed to your vehicle’s specific VIN.
A Technician’s Notebook: The Ghost in the Machine
A customer’s 2008 SRX came into my shop last month with a list of complaints that sounded like a haunted car. The dome lights would stay on, the driver’s window wouldn’t go down, and occasionally, it just wouldn’t start. They had already replaced the battery and checked the alternator. After hooking up my diagnostic scanner, I saw a dozen communication error codes all pointing back to one culprit: the BCM. It was failing intermittently, sending corrupt data across the network. Installing a VIN-programmed BCM like this one solved every single issue in one go. It’s the definitive fix for these exact symptoms.
Is Your Cadillac SRX Showing These Signs?
A failing BCM doesn’t always trigger a check engine light. Instead, watch out for these common symptoms that point directly to a BCM issue:
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The anti-theft or security system malfunctioning, causing no-start conditions.
- ✔ Inconsistent or non-functional dashboard gauges and warning lights.
- ✔ Remote keyless entry failing to work reliably.
- ✔ HVAC (heating and A/C) controls not responding correctly.
Your Straightforward BCM Installation Guide
Replacing the 2007-2009 SRX Body Control Module is a manageable job for a confident DIYer. Since we handle the programming, you can skip the expensive trip to the dealership. The BCM 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 for the system to discharge completely.
- Locate the BCM: On the SRX, you’ll find the BCM mounted on the left-hand 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 the old module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely reconnect all electrical connectors, ensuring they click into place.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Final Steps: Follow the critical post-installation procedures below to ensure all systems, including safety features, are correctly initialized.
Critical Post-Installation Steps
After installing your new 2007-2009 SRX Body Control Module, a couple of final procedures are necessary to ensure everything works perfectly. These steps synchronize the new module with your car’s other systems.
- Airbag System Reset: If the airbag warning light is on, you must perform the ‘Setup SDM Primary Key in BCM’ procedure with a compatible high-level scan tool. This is a critical safety step that re-establishes the link between the BCM and the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Sensor Relearn: Some vehicles require the Brake Pedal Position (BPP) sensor to be recalibrated after a BCM replacement. This ensures the brake lights and stability control system receive accurate input. This procedure can also be done with a quality diagnostic tool.
Verified Compatibility for Your Vehicle
This Body Control Module is a direct replacement for part number 20864768 and is guaranteed to fit the 2007-2009 Cadillac SRX. It also serves as a replacement for a wide range of other GM vehicles and supersedes numerous older part numbers. Please verify your original part number against this list for a perfect match.
Compatible 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
Fits Select Models Including: 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/Savana Vans (08-12), G8 (08-09), Hummer H2 (08-09), Impala (06-13), Lucerne (06-11), Monte Carlo (06-07), Outlook (07-10), SRX (07-09), STS (10), Suburban/Tahoe/Yukon (10), Torrent (07-09), Traverse (09-12), Vue (08-10).
Frequently Asked Questions
Do I have to take this BCM to the dealer for programming?
No, you don’t. We handle all the programming for you before we ship the part. Simply provide us with your vehicle’s VIN during checkout, and we will flash the module with the latest GM software specific to your vehicle. It arrives ready for installation.
What information do you need to program the module?
All we need is your vehicle’s 17-digit Vehicle Identification Number (VIN). This allows us to load the exact software and settings your vehicle had when it left the factory, ensuring seamless integration.
Is this a difficult part to replace myself?
For someone with basic mechanical skills and tools, this is a very manageable job. The main challenge is typically accessing the module’s location within the dash. The physical swap is just a few bolts and electrical connectors. Our pre-programming service saves you the most complex step.
What happens if I don’t perform the airbag or brake sensor relearn procedures?
Skipping these steps can leave you with a persistent airbag warning light on your dash and may affect the proper function of your vehicle’s stability control system. For safety and full functionality, these procedures are highly recommended.
How do I know if my old BCM part number is compatible?
We’ve provided a comprehensive list of part numbers that this module directly replaces. Find the number on your original BCM’s sticker and check it against our list. If it matches, this part is the correct fit for your vehicle.