Restore Full Functionality to Your Cadillac DTS
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 randomly acts up—you’re not alone. These are classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s comfort and convenience features, and when it starts to go, it can make driving a frustrating experience. This isn’t just an annoyance; it can impact vehicle security and safety systems.
This replacement Body Control Module is the definitive solution. We take the guesswork and high dealership costs out of the equation. Before we ship the module, we program it with the latest GM software updates specifically for your vehicle using the VIN you provide. This means it arrives at your door ready for installation, eliminating the need for expensive scan tools or a trip to the service center for programming. It’s the most direct path to getting your luxury sedan back to operating flawlessly.
Case Study: A Tricky Diagnosis
I had a 2008 Cadillac DTS in my bay that was driving its owner crazy. The radio would turn off, the door locks would cycle while driving, and the security light was on. The owner had already replaced the battery, thinking it was a simple voltage issue. After connecting my scanner, I saw multiple U-series communication codes, pointing to a network problem. By isolating modules, I traced the issue to the BCM, which was sending corrupt data across the CAN bus. Instead of a costly new unit from the dealer plus programming fees, we ordered a VIN-programmed module like this one. The swap took less than an hour, and all the phantom electrical gremlins vanished instantly. It’s a textbook BCM failure, and this is the most efficient fix.
Is Your Cadillac Showing These Electrical Mysteries?
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The anti-theft or security system light is illuminated on the dash.
- ✔ False warnings appearing on the driver information center (DIC).
- ✔ Communication error codes, such as U0140 (Lost Communication With Body Control Module).
- ✔ In some cases, a no-start condition if the BCM fails to recognize the key.
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 an option, a confident DIYer can handle this job.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Access the Module: Open the glove box. You may need to press in on the sides to release the stoppers and let it swing down completely, or you may need to remove the glove box assembly itself. This usually involves a few screws.
- Locate the BCM: Behind the glove box, you will see the Body Control Module. It’s a plastic box with several large electrical connectors plugged into it.
- Disconnect and Remove: Carefully unplug all wiring harnesses from the old BCM. They have release tabs that need to be pressed. Once disconnected, unbolt or unclip the module from its mounting bracket and remove it.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely reconnect all the wiring harnesses, ensuring they click into place.
- Final Steps: Reinstall the glove box and reconnect the negative battery terminal. Start the vehicle and test all functions—windows, locks, lights, radio, etc.—to confirm the repair.
Important Post-Installation Information
Because this module is central to many systems, a couple of additional steps might be necessary after installation:
- Airbag System Sync: If the airbag warning light is on after you install the new BCM, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible high-level scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure correct brake light operation and to prevent issues with the traction control system.
- Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a certified technician if you are unsure about any procedure.
Verified Vehicle Compatibility
This BCM is a direct replacement for a wide array of GM vehicles. Please verify your part number against our cross-reference list and confirm your model is listed below. The location of the BCM can vary by model.
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.
CADILLAC CTS 08-13 Body Control (BCM); LH dash
CADILLAC SRX 07-09 Body Control (BCM); LH dash
CADILLAC STS 10 Body Control (BCM); center dash
CADILLAC ESCALADE, ESV, EXT 10 Body Control (BCM); (under steering column)
And many more Chevrolet, GMC, Buick, Saturn, Pontiac, and Hummer models. Please check the full list or contact us with your VIN to confirm fitment.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the main computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, interior/exterior lighting, security system, wipers, and various comfort features.
Will I need to program this 2006-2011 DTS Body Control Module?
No. We handle the programming for you before shipment. Simply provide your vehicle’s VIN during checkout, and the module will arrive with the latest GM software, ready for installation. This saves you a trip to the dealership.
What is the ‘Cloning Service’ and how does it work?
Our service involves programming the replacement module with your vehicle’s specific data using your VIN. This ensures all systems and options configured in your original BCM are present in the new one, making it a true plug-and-play solution.
Do I need to send my old BCM back?
No, there is no core charge or requirement to return your original module. Our programming process uses your VIN, not your old part. We always return the customer’s original module if it is sent to us for data transfer.
Where is the BCM located on my 2007 Cadillac DTS?
On the 2006-2011 Cadillac DTS, the BCM is located inside the cabin, on the passenger side, behind the glove box area within the center dash structure.