Restore Your Cadillac’s Electrical System with a Plug-and-Play Solution
If you’re dealing with bizarre electrical issues in your 2006-2011 Cadillac DTS—like power windows with a mind of their own, flickering interior lights, or a security system that prevents your car from starting—you’re likely facing a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen these modules cause some of the most frustrating and hard-to-diagnose problems. The BCM is the central hub for your vehicle’s comfort and convenience features, and when it fails, it can feel like your car is haunted.
Forget the expensive trip to the dealership and the days of waiting for programming. We offer a straightforward Cloning Service that makes this repair easier and more affordable than ever. Simply send us your vehicle’s original BCM, and we will transfer all the critical, vehicle-specific data to this replacement unit. We flash it with the latest GM software updates for optimal performance. The result? A module that is 100% plug-and-play, arriving at your door ready for installation with no additional programming required. This is the professional-grade fix that both seasoned mechanics and determined DIYers trust.
From the Diagnostic Bay
I remember a 2008 Cadillac DTS that came into the shop with a laundry list of complaints. The radio would randomly shut off, the driver’s side power seat was inoperative, and the remote key fob worked intermittently. The customer had already replaced the battery and checked all the fuses. A scan showed a slew of U-codes, specifically U0140 (Lost Communication With Body Control Module). Instead of just throwing a new module in and sending him to the dealer for a costly programming session, we performed a data clone onto a quality replacement. After a 30-minute install, every single issue was resolved. This is the power of a properly prepared 2006-2011 DTS BCM—it’s a comprehensive fix, not just a part.
Common Signs of a Failing BCM in Your Cadillac
- ✔ Erratic or non-functional power windows, door locks, and interior/exterior lights.
- ✔ The security or anti-theft light stays on, potentially causing a no-start condition.
- ✔ Intermittent operation of the radio, climate controls, or dashboard gauges.
- ✔ False warning messages on the driver information center (DIC).
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, B1001, or other B-series codes.
- ✔ Inconsistent key fob or remote start functionality.
Your Straightforward BCM Installation Guide
For the 2006-2011 Cadillac DTS, the BCM is typically located behind the glove box on the right-hand side of the center dash. While professional installation is always recommended, a skilled DIYer can perform this replacement.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system to fully discharge.
- Access the Module: Open and remove the glove box assembly. This may require removing a few screws or clips. You should now see the BCM mounted to a bracket.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM onto the bracket and securely plug in all the electrical connectors. You should hear a click as they lock into place.
- Final Steps & Testing: Reinstall the glove box and reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting the engine) and test all body functions: windows, locks, lights, radio, etc. Refer to the post-installation procedures below if any warning lights appear.
Important Post-Installation Information
Because your vehicle’s data is cloned to this module, most functions will work immediately. However, in some cases, security systems may require a relearn. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag (SRS) light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible high-end scan tool to sync the modules.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be needed to ensure correct brake light operation and to satisfy the traction control system.
Disclaimer: Vehicle systems vary. Always have the factory service manual for your specific VIN available for reference.
Verified Vehicle Compatibility
This BCM is a direct-fit replacement for a wide range of GM vehicles and interchanges with numerous part numbers. While this listing is focused on the 2006-2011 DTS BCM, it also fits models like the Impala, Acadia, Enclave, Tahoe, Yukon, and various Express/Savana vans. Please verify your original part number against our list below or contact us with your VIN to confirm fitment.
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