Restore Full Control Over Your Cadillac’s Electronics
If you’re dealing with baffling electrical issues in your 2007–2009 Cadillac SRX—like power windows with a mind of their own, flickering dashboard lights, or a security system that randomly prevents your car from starting—you’re likely facing a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics. When it malfunctions, it can create a cascade of frustrating and unpredictable problems. This isn’t just an annoyance; it can be a significant safety concern.
This replacement Body Control Module, corresponding to part number 25847588, is the definitive solution. We take the guesswork and high dealership costs out of the equation. Before we ship the part, we program it with the latest GM software updates, specifically matched to your vehicle’s VIN. This ensures that when it arrives, it’s ready for installation, restoring the precise functionality your Cadillac was built with. Stop chasing electrical gremlins and get a reliable fix that puts you back in control.
A Technician’s Notebook: The Haunted SRX
A customer brought in their ’08 SRX last month with a list of complaints that sounded like the vehicle was possessed. The radio would turn on and off, the interior lights would pulse, and occasionally, the key fob wouldn’t work. They’d already replaced the battery to no avail. A scan showed a handful of U-codes, specifically a U0140 (Lost Communication With Body Control Module). In my 20+ years of experience, these ghost-in-the-machine symptoms almost always point back to a failing BCM. The internal processors and relays wear out, causing intermittent connections. We installed a VIN-programmed BCM just like this one, and it immediately resolved every single issue. The customer was thrilled to have their luxury SUV back to normal without a massive dealership bill.
Is Your Cadillac Experiencing These Electrical Glitches?
A faulty BCM can manifest in numerous ways. If you’re noticing any of the following, it’s a strong indicator that your Body Control Module needs replacement:
- ✔ Erratic power windows, door locks, or mirrors that work intermittently or not at all.
- ✔ Interior dome lights or exterior lamps staying on or not turning on.
- ✔ The security or anti-theft system light is illuminated, potentially causing a no-start condition.
- ✔ Dashboard warning lights (like the airbag light) appearing for no reason.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or B1001.
- ✔ Wipers or climate control functions behaving erratically.
Your Straightforward BCM Installation Guide
Installing your new BCM is a manageable job for a confident DIYer. For the 2007-2009 SRX, the BCM is typically located on the left-hand (driver’s) side of the dash. Always consult a service manual for the exact location on your specific vehicle.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: Access the BCM, which is usually found behind the lower dash panel on the driver’s side. You may need to remove a few trim pieces to get to it.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all the electrical harnesses.
- Power Up: Reconnect the negative battery terminal.
- Perform Final Steps: Follow the crucial post-installation procedures outlined below to ensure all related systems, like the airbag and brakes, are properly calibrated.
Important Post-Installation Requirements
After installing your new BCM, a few critical recalibration steps are necessary to guarantee safety and full functionality. These procedures require a professional-grade diagnostic scan tool.
- Airbag System Reset: To clear the airbag warning light and ensure the system is active, you must perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Sensor Calibration: On some models, the BCM replacement requires a recalibration of the brake pedal position sensor. This is vital for the proper operation of the anti-lock brakes (ABS) and traction control systems.
Note: If you are not comfortable performing these steps or do not have the required tools, we strongly recommend seeking assistance from a qualified professional mechanic.
Verified Fitment for Your General Motors Vehicle
This Body Control Module is a direct replacement for part number 25847588 and is compatible with a wide range of GM vehicles. Please verify your part number and vehicle model from the list below to ensure perfect compatibility. Our programming service is tailored to the VIN you provide, guaranteeing it works for your specific application.
ACADIA 07-12 Body Control (BCM); (LH dash)
AVALANCHE 1500 10 Body Control (BCM); (under steering column), ID 25892622
CAPRICE 11-13 Body Control (BCM)
CAPTIVA SPORT 12 Body Control (BCM); (center dash), ID 20921435, 20921436, 22860591
CTS 08-13 Body Control (BCM); LH dash
DTS 06-11 Body Control (BCM); (RH center dash)
ENCLAVE 08-12 Body Control (BCM); (LH dash)
EQUINOX 07-09 Body Control (BCM); (center dash)
ESCALADE 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25892622
EXPRESS/SAVANA VANS 08-12 Body Control (BCM)
G8 08-09 Body Control (BCM); (center dash)
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
IMPALA 06-13 Body Control (BCM); (LH dash)
LUCERNE 06-11 Body Control (BCM); (right side dash)
MONTE CARLO 06-07 Body Control (BCM); (LH steering column)
OUTLOOK 07-10 Body Control (BCM); (center dash)
SRX 07-09 Body Control (BCM); LH dash
STS 10 Body Control (BCM); center dash
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
TAHOE 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
TORRENT 07-09 Body Control (BCM); (center dash)
TRAVERSE 09-12 Body Control (BCM); (LH dash)
VUE 08-10 Body Control (BCM); (center dash)
YUKON 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
And other models matching interchangeable part numbers.
Frequently Asked Questions
What does a Body Control Module do?
The BCM is a computer that manages and communicates with most of your vehicle’s non-engine related electronic systems, such as power windows, locks, lights, wipers, security system, and climate controls.
Do I need to program this BCM?
No. We handle the programming for you. Simply provide your vehicle’s 17-digit VIN during or after checkout, and we will program the module with the latest GM software before shipping it. This makes it a plug-and-play solution.
Where is the BCM located on my 2008 SRX?
On the 2007-2009 Cadillac SRX, the Body Control Module is typically located behind the dashboard on the driver’s side, near the steering column.
Why is my airbag light on after installation?
The new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure with a compatible scan tool to turn off the light and ensure the system is functional.
How do I provide my VIN number?
You can enter your VIN in the notes section during checkout or send it to us in a message after you complete your purchase. We cannot ship your order until we receive your VIN.