Restore Full Electronic Control to Your Cadillac DTS
If you’re dealing with baffling electrical issues in your 2006-2011 Cadillac DTS—like power windows with a mind of their own, flickering lights, or a security system that prevents your car from starting—a failing Body Control Module (BCM) is the likely culprit. As a technician with over two decades of experience, I’ve seen how a faulty BCM can turn a luxury vehicle into a source of daily frustration. This module is the central command center for your car’s comfort and convenience features, and when it fails, it creates a cascade of problems. This isn’t just a replacement part; it’s the definitive solution to restore your vehicle’s reliability and your peace of mind.
We take the biggest headache out of the repair process: programming. Simply provide your vehicle’s VIN during checkout, and we will flash this BCM with the latest GM-certified software specifically for your car. This means you can bypass a costly and time-consuming trip to the dealership. You get a part that’s ready for installation right out of the box, ensuring all systems communicate correctly from the moment you reconnect the battery.
A Technician’s Notebook: The DTS with a Ghost
A customer brought in his 2009 Cadillac DTS, completely fed up. The radio would turn on and off, the driver’s side power window wouldn’t work, and occasionally, the car wouldn’t start, displaying a “Service Theft System” message. He’d already replaced the battery and checked fuses. My scan tool pulled several U-codes, indicating a communication breakdown between modules. In my shop, I’ve seen these exact symptoms dozens of times. While it looks like multiple separate failures, the root cause is almost always a single point: the BCM. We installed a VIN-programmed BCM, performed the quick post-install relearns, and every single issue was resolved. It’s a classic case of the BCM being the ghost in the machine.
Is Your Cadillac Showing These Symptoms?
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that flicker, stay on, or don’t work at all.
- ✔ The security or anti-theft system light is illuminated, causing a no-start condition.
- ✔ Communication error codes (often U-codes like U0140, U0155) stored in the system.
- ✔ Erratic behavior from the radio, climate control, or dashboard gauges.
- ✔ A parasitic battery drain that leaves you with a dead battery overnight.
A Straightforward Guide to Installation
For the 2006-2011 Cadillac DTS, the BCM is 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 before starting work.
- Access the Module: Open and remove the glove box. You may need to release retaining clips or remove a few screws to get it out of the way completely.
- Locate the BCM: Identify the Body Control Module. It’s a plastic box with several large multi-pin electrical connectors attached.
- Disconnect and Remove: Carefully unplug all electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt the BCM from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and secure it with the bolts.
- Reconnect Everything: Firmly plug all electrical connectors back into the new module. You should hear or feel a click as they lock into place.
- Reassemble: Reinstall the glove box and any trim you removed.
- Power Up & Final Steps: Reconnect the negative battery terminal. The vehicle is now ready for the mandatory post-installation procedures.
Critical Post-Installation Steps
IMPORTANT: Replacing the BCM is not a simple plug-and-play repair. To ensure safety and full functionality, the following procedures are required using a compatible professional scan tool. Failure to perform these steps will result in warning lights and potentially disabled systems.
- Airbag System (SRS): The ‘Setup SDM Primary Key in BCM’ procedure must be performed. This re-establishes communication between the new BCM and the airbag control module (SDM). If this is not done, the airbag warning light will remain on.
- Brake System: Some vehicles require a Brake Pedal Position Sensor recalibration after BCM replacement. This ensures the brake lights and stability control systems function correctly.
If you are not comfortable performing these steps, we strongly recommend seeking assistance from a qualified professional mechanic.
Verified Vehicle Compatibility
This BCM, part number 25892622, is a direct replacement for a wide range of General Motors vehicles. It is compatible with the original part numbers listed below. Please verify your vehicle is on this list to ensure proper fitment.
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, or 22860591
CTS 08-13 Body Control (BCM); LH dash
CTS 08 Body Control (BCM); RH 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 or 25892622
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25892622
EXPRESS 1500 VAN 08-12 Body Control (BCM); (center dash)
EXPRESS 2500/3500 VAN 08-12 Body Control (BCM)
G8 08-09 Body Control (BCM); (center dash)
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
IMPALA 06-12 Body Control (BCM); (LH dash)
IMPALA 13 Body Control (BCM); (LH dash), ID 22820315
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)
SAVANA 1500 VAN 08-12 Body Control (BCM); (center dash)
SAVANA 2500/3500 VAN 08-12 Body Control (BCM)
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 or 25892622
TAHOE 10 Body Control (BCM); (under steering column), ID 20815898 or 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 or 25892622
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
Replaces 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
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
No. We handle the programming for you before we ship the part. Just provide your vehicle’s 17-digit VIN at checkout, and it will arrive ready for the physical installation and post-install relearn procedures.
Where is the VIN located on my vehicle?
You can typically find your VIN on a metal plate on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Will this fix the ‘Service Theft System’ message on my dash?
In many cases, yes. A faulty BCM is a very common cause of this warning message and the associated no-start condition. This programmed module is designed to restore the security system’s proper function.
Why is my airbag light on after installing the new BCM?
This is expected behavior. The new BCM needs to be electronically introduced to the airbag’s computer (SDM). A ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool to clear the light and ensure the system is active.
What if I install it and still have problems?
Our goal is to get your vehicle fixed correctly. If issues persist, it could indicate another problem in the vehicle’s wiring or a different faulty component. Our experienced support team is here to help you troubleshoot and ensure you have the right part for the job.