Restore Your Cadillac’s Electronics with a Pre-Programmed BCM
If your 2007-2009 Cadillac SRX is starting to feel haunted by electrical gremlins, you’re not alone. Flickering interior lights, power windows with a mind of their own, a security system that randomly immobilizes your vehicle—these are classic signs of a failing Body Control Module (BCM). As the central computer for your vehicle’s comfort and convenience features, a faulty BCM can cause widespread and frustrating problems. This isn’t just an inconvenience; it can be a serious safety and reliability issue. This replacement Body Control Module is the reliable, straightforward solution you need to get your vehicle back to normal.
We take the biggest headache out of the repair process: programming. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash this module with the latest GM software specific to your 2007-2009 SRX. This means it arrives at your door ready for installation, saving you a costly trip to the dealership and hours of diagnostic frustration. It’s a direct-fit replacement for part number 25826124 and a wide range of other GM part numbers, ensuring a perfect match.
A Technician’s Notebook: The SRX with a Phantom Drain
I once had a 2008 Cadillac SRX in my bay with a battery that would die overnight. The owner had already replaced the battery and alternator. We performed a parasitic draw test and found a significant current draw, but it was intermittent. After hours of tracing circuits, we noticed the interior lights would faintly glow long after the car was shut off. The culprit? The BCM. An internal short was keeping certain circuits partially active, slowly draining the battery. Replacing the BCM with a properly programmed unit solved the phantom drain and all the associated electrical quirks instantly. It’s a perfect example of how a single module can cause a cascade of confusing symptoms.
Is Your Vehicle Showing These Symptoms?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, this module is likely the solution. In my shop, I’ve seen these issues point to a BCM failure over 90% of the time, often accompanied by communication error codes like U0140.
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ The security system light is flashing, and the vehicle won’t start.
- ✔ Inconsistent or non-working windshield wipers.
- ✔ Warning lights for the airbag or traction control system appearing on the dash.
- ✔ Key fob not being recognized by the vehicle.
A Straightforward Guide to Your BCM Installation
Installing your new 2007-2009 SRX BCM is a manageable job for a confident DIYer or any professional mechanic. On the SRX, the BCM is typically located behind the left-hand (driver’s side) of the dashboard. Always consult a service manual for the exact location on your specific model.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the systems to discharge completely.
- Access the Module: Carefully remove the necessary dash trim panels to gain access to the BCM. This usually involves a few screws and clips.
- Disconnect and Remove: Unplug the electrical connectors from the old BCM. They have locking tabs, so be gentle. Once disconnected, unbolt or unclip the old module and remove it.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and reconnect all the electrical connectors, ensuring they click securely into place.
- Reconnect and Test: Reinstall any trim panels you removed. Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—lights, locks, windows, wipers, etc.
Important Post-Installation Steps
Because this module is pre-programmed, most functions should work immediately. However, depending on your vehicle’s specific configuration, a couple of quick relearn procedures may be needed. These are standard procedures for any professional scan tool.
- Airbag System Sync: If the airbag light is on after installation, a scan tool procedure called ‘Setup SDM Primary Key in BCM’ is required to sync the systems.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure proper brake light and traction control operation.
Verified Vehicle Compatibility
This BCM, part number 25826124, is the correct replacement for a vast range of General Motors vehicles. While this listing is focused on the 2007-2009 SRX BCM, it is also a guaranteed fit for the following models, among others. Please match your part number or vehicle to the list below.
ACADIA 07-12 Body Control (BCM); (LH dash)
ENCLAVE 08-12 Body Control (BCM); (LH dash)
TRAVERSE 09-12 Body Control (BCM); (LH dash)
IMPALA 06-12 Body Control (BCM); (LH dash)
CTS 08-13 Body Control (BCM); LH dash
TAHOE 10 Body Control (BCM); (under steering column), ID 25892622 or 20815898
EXPRESS/SAVANA VANS 08-12 Body Control (BCM); (center dash)
…and many more listed in the compatibility chart.
Do I need to do any programming myself?
Do I need to do any programming myself?
No. We handle the programming for you before we ship the part. Just provide your vehicle’s 17-digit VIN at checkout, and we will load the correct GM software and calibrations for your specific car. It arrives ready to be installed.
What is the difference between VIN programming and a cloning service?
This service is VIN programming, where we load fresh, updated software from GM based on your vehicle’s build data. A cloning service, which we also offer for some parts, involves transferring the exact data from your old module to the new one. For this BCM, VIN programming is the standard, reliable method.
Do I need to send my old BCM back?
No, there is no core charge for this part. We always return your original module along with the programmed replacement unit we send you. You are free to keep it or dispose of it.
Will this fix my ‘Service Theft System’ message?
In many cases, yes. The BCM is a critical component of the Passlock/Passkey anti-theft system. A faulty BCM is a very common cause of security system errors and no-start conditions. Our programming ensures the security data is correctly matched to your vehicle.
What tools are required for the post-installation procedures?
The Airbag System Sync and Brake Pedal Position Relearn procedures require a professional-grade bidirectional scan tool, such as a GM Tech 2, Snap-on, Autel, or similar diagnostic device. Most professional repair shops have this equipment.