Restore Your Cadillac’s Electrical System with a Plug-and-Play BCM
Are you dealing with baffling electrical issues in your 2006-2011 Cadillac DTS? Flickering lights, unresponsive power windows, or a security system that has a mind of its own are all classic signs of a failing Body Control Module (BCM). As the central command for your car’s comfort and convenience features, a faulty BCM can make driving a frustrating experience. This isn’t just an annoyance; it can affect vehicle security and even safety-related alerts. In my 20+ years as a technician, I’ve seen how a single failing module can create a cascade of problems that seem unrelated, often leading to expensive and incorrect diagnoses.
We offer a straightforward, reliable solution. This Body Control Module, part number 25847588, is the definitive fix for your vehicle’s electronic woes. The best part? We handle the most complicated step for you. Simply provide your vehicle’s VIN at checkout, and our experts will program the module with the latest GM software specifically for your car. It arrives at your door ready for installation, saving you a costly trip to the dealership and hours of diagnostic headaches. Restore full functionality and peace of mind with a dependable, correctly programmed 2006-2011 DTS Body Control Module.
Case Study: A Tricky Diagnosis
A customer brought in their 2009 Cadillac DTS with a bizarre set of symptoms: the radio would cut out intermittently, the driver’s side power seat was dead, and the remote key fob worked only occasionally. They had already replaced the battery and checked fuses with no luck. A scan showed a U0140 code—Lost Communication With Body Control Module. While this pointed to the BCM, the intermittent nature made it tricky. After verifying power and ground at the module, we confirmed the internal BCM circuitry was failing. We installed one of our VIN-programmed modules, and within an hour, every single issue was resolved. The customer was thrilled to avoid a multi-day stay at the dealership and a much larger bill.
Common Signs of a Failing BCM
If your vehicle is exhibiting these symptoms, a faulty BCM is the likely culprit. Replacing your 2006-2011 DTS Body Control Module can resolve these issues:
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ The anti-theft or security system light stays on, preventing the car from starting.
- ✔ Intermittent operation of the radio, climate controls, or dashboard gauges.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or B1001.
- ✔ False warnings on the driver information center (DIC).
A Straightforward Guide to Installation
Installing your new BCM is manageable for a DIYer with basic tools. Remember to follow the post-installation steps carefully for full system functionality.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to allow the systems to discharge.
- Locate the BCM: In the 2006-2011 Cadillac DTS, the Body Control Module is typically located behind the right-hand (passenger side) of the center dash. You may need to remove a lower trim panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that must be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical harnesses. Ensure they click into place.
- Reconnect the Battery: Reattach the negative battery terminal.
- CRITICAL – Post-Installation Procedures: Your vehicle now requires a few final steps. You MUST perform the ‘Setup SDM Primary Key in BCM’ procedure with a compatible high-end scan tool to sync the airbag system and clear the warning light. Some vehicles may also require a Brake Pedal Position Sensor recalibration. If you are not equipped to perform these steps, a professional technician must complete the installation.
Verified Vehicle Compatibility
This module is a direct replacement for part number 25847588 and a wide range of other GM part numbers. It is guaranteed to fit the following models (and many more):
- Cadillac DTS: 2006-2011 (Body Control (BCM); RH center dash)
- Buick Lucerne: 2006-2011 (Body Control (BCM); right side dash)
- Chevrolet Impala: 2006-2012 (Body Control (BCM); LH dash)
- Chevrolet Monte Carlo: 2006-2007 (Body Control (BCM); LH steering column)
- Cadillac CTS: 2008-2013 (Body Control (BCM); LH dash)
- GMC Acadia / Chevrolet Traverse / Buick Enclave: 2007-2012 (Body Control (BCM); LH dash)
- Chevrolet Equinox / Pontiac Torrent: 2007-2009 (Body Control (BCM); center dash)
- Chevrolet Express / GMC Savana Vans: 2008-2012 (Body Control (BCM); center dash)
- Cadillac Escalade / Chevrolet Tahoe / GMC Yukon: 2010 (Body Control (BCM); under steering column – check ID)
This module also replaces the following 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, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084.
Frequently Asked Questions
Why do you need my VIN number?
Your VIN (Vehicle Identification Number) is essential because it allows us to program the BCM with the exact software and settings for your vehicle’s specific options and features. This ensures 100% compatibility and proper function right out of the box, eliminating the need for dealership programming.
Is this a simple plug-and-play installation?
While our pre-programming makes it physically plug-and-play, there are mandatory post-installation electronic procedures. You will need a professional-grade scan tool to perform the ‘Setup SDM Primary Key in BCM’ to sync the airbag system. Without this step, the airbag light will remain on. A brake pedal recalibration may also be needed.
Will this fix my car’s security light and no-start issue?
Yes, in most cases. The BCM is a core part of the GM Pass-Key and Passlock anti-theft systems. A failing BCM is a very common cause of a persistent security light and the resulting no-start condition. This programmed module will restore proper communication.
What is a Body Control Module?
The Body Control Module, or BCM, is a computer in your vehicle that controls and monitors the various electronic accessories not related to the engine. This includes power windows, locks, lights, wipers, the security system, and more. It acts as a central hub for these body-related functions.
Can I install this myself?
A knowledgeable DIYer can physically install the module. However, you must have access to a high-level diagnostic scan tool to complete the necessary post-installation procedures (airbag key setup, etc.). If you don’t have this tool, we recommend having the installation completed by a professional mechanic.