Restore Full Electronic Control to Your Cadillac DTS
Are you battling frustrating electrical issues in your 2006-2011 Cadillac DTS? Flickering lights, malfunctioning power windows, a stubborn security system, or other strange electronic behaviors are often signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it falters, it can cause a cascade of seemingly unrelated problems. This replacement module is the definitive solution to restore your vehicle’s functionality and peace of mind.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle and expense out of the repair process by pre-programming this module specifically for your vehicle using your VIN. This means it arrives at your door with the latest GM software updates already installed, allowing for a straightforward installation without the need for a costly trip to the dealership for programming. Simply provide your VIN after purchase, and we’ll handle the rest.
From the Diagnostic Bay
We had a 2009 Cadillac DTS come into the shop with a laundry list of complaints from the owner. The dome lights would stay on, the driver’s side window worked intermittently, and the key fob would only lock the doors, not unlock them. The dash displayed a persistent ‘Service Theft System’ message. After checking fuses and wiring, all diagnostic paths led to the BCM. Instead of a complex rewiring job, the fix was a properly programmed BCM. Once we installed the new module, all the bizarre electrical gremlins vanished instantly. It’s a perfect example of how this single component can restore a vehicle’s luxury feel and function.
Common Symptoms of a Failing 2006-2011 DTS BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that won’t turn on or off correctly.
- ✔ The security system acting up, causing alarm issues or starting problems.
- ✔ ‘Service Theft System’ or other warning messages on the dashboard.
- ✔ Keyless entry remote (fob) not working as it should.
- ✔ Intermittent operation of the radio, climate controls, or windshield wipers.
- ✔ Diagnostic trouble codes (especially U-codes) indicating a loss of communication.
Plug-and-Play Installation and Post-Install Steps
Our goal is to make your repair as simple as possible. Because this 2006-2011 DTS BCM is programmed to your vehicle’s VIN, it is designed to be a direct-fit replacement. After installation, most vehicle functions will be immediately restored. However, in some cases, certain integrated systems may require a simple relearn or synchronization procedure to communicate with the new BCM. This is a normal part of the process for modern vehicles.
Post-Installation Procedures:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary. This syncs the airbag system with the new BCM and must be performed with a professional-grade diagnostic tool. This is only required if the light is on.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be needed. This ensures your brake lights and traction control system function correctly.
Please note: Specific procedures can vary. We always recommend consulting a factory service manual or a qualified automotive technician for guidance.
Guaranteed Fitment for Multiple Part Numbers
This module is a direct replacement for a wide range of original equipment part numbers, ensuring broad compatibility. If your old module has any of the following numbers, this unit will work as a direct replacement: 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.
Frequently Asked Questions
What does a Body Control Module do on a Cadillac DTS?
The BCM acts as the main computer for your car’s body electronics. It controls non-engine related functions like power windows, locks, interior and exterior lighting, the security system, climate control fans, and wipers. When it fails, you’ll notice issues with these systems.
Is this BCM difficult to install?
The physical installation is typically straightforward. On the 2006-2011 DTS, the BCM is located behind the glove box on the right-hand side of the center dash. It involves removing a few panels and connectors. Most DIY mechanics with basic tools can complete the job. The key benefit of our product is that the complex programming is already done for you.
Do I need to program this module?
No. This is the primary benefit of our service. We program the module to your car’s specific VIN before we ship it. This makes the unit ready for installation upon arrival, saving you from needing specialized tools or a trip to the dealership.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) contains critical information about the specific options and features your car was built with. We use the VIN to load the exact correct software and calibrations onto the BCM, ensuring all features of your vehicle work correctly, just as they did from the factory.
What is the ‘Airbag System Sync’ procedure?
The airbag system (SDM) and the BCM are linked for security. If the airbag light comes on after you install the new BCM, it means they need to be electronically ‘re-introduced.’ A professional scan tool is used to perform the ‘Setup SDM Primary Key in BCM’ function, which re-establishes this link and turns off the light.
What if my original part number isn’t 20864768?
That’s okay. This module replaces a long list of interchangeable GM part numbers. As long as your original part number is on the list provided in the description, this module is the correct replacement for your vehicle.