Tired of Electrical Gremlins in Your Cadillac?
As a technician with over two decades of experience, I’ve seen it all. Flickering dashboard lights, power windows with a mind of their own, a security system that randomly immobilizes the car—these aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s comfort and convenience features. When it starts to fail, it can feel like your car is haunted. This isn’t just a part replacement; it’s a restoration of your vehicle’s reliability and your peace of mind.
We solve the biggest headache of this repair: the programming. Dealerships can charge a small fortune for programming services alone. We eliminate that step. By providing us with your vehicle’s VIN at checkout, you’ll receive a fully functioning 2006-2011 DTS Body Control Module that is plug-and-play. We flash it with the latest GM-certified software, ensuring it communicates perfectly with your car’s existing systems right out of the box. This is the most direct path to getting your luxury vehicle back to performing as it should.
A Technician’s Notebook: The DTS with a Mind of Its Own
I remember a 2009 Cadillac DTS that came into my bay with a truly bizarre set of symptoms. The owner reported that the radio would switch stations on its own, the interior lights would pulse dimly at night, and occasionally, the car would refuse to start, displaying a ‘Service Theft System’ message. A scan showed a slew of U-codes (communication errors) pointing to the BCM. After confirming power and grounds were good, we swapped in one of our pre-programmed modules. It was a 30-minute job that instantly resolved every single issue. The owner was thrilled to have his car back without a multi-day stay at the dealer.
Is Your Vehicle Showing These Symptoms?
- ✔ Erratic or non-functional power windows, locks, or mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security system light is on, or the ‘Service Theft System’ message appears.
- ✔ Intermittent no-start conditions, especially with security-related symptoms.
- ✔ Problems with the horn, wipers, or climate control fan.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or other U-codes.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow capacitors to discharge.
- ✔ Locate the BCM: On the 2006-2011 Cadillac DTS, the Body Control Module is typically located behind the glove box or on the right-hand side of the center dash area. You will need to remove the glove box assembly 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 the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors, ensuring they click into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position (without starting the engine) and test all body functions—lights, locks, windows, etc.
- ✔ Perform Relearns (If Needed): Start the vehicle. If an airbag light or brake system warning appears, you may need to perform the post-installation procedures noted below with a compatible scan tool.
Important Post-Installation Notes
While this 2006-2011 DTS Body Control Module is sent ready for installation, some vehicle systems may require a ‘handshake’ with the new module. This is normal. Depending on your specific model and options, you may need a professional scan tool to perform:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary to sync the systems.
- Brake Pedal Position Relearn: To ensure correct brake light and traction control operation, a brake pedal position sensor relearn might be required.
Always consult a factory service manual or a qualified technician if you are unsure about any step.
Verified Vehicle Compatibility
Interchangeable 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
DTS 06-11 Body Control (BCM); (RH center dash)
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)
CTS 08-13 Body Control (BCM)
ENCLAVE 08-12 Body Control (BCM); (LH dash)
EQUINOX 07-09 Body Control (BCM); (center dash)
ESCALADE 10 Body Control (BCM); (under steering column)
ESCALADE ESV 10 Body Control (BCM); (under steering column)
ESCALADE EXT 10 Body Control (BCM); (under steering column)
EXPRESS/SAVANA VANS 08-12 Body Control (BCM)
G8 08-09 Body Control (BCM); (center dash)
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
IMPALA 06-13 Body Control (BCM); (LH dash)
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)
SRX 07-09 Body Control (BCM); LH dash
STS 10 Body Control (BCM); center dash
SUBURBAN 1500 10 Body Control (BCM); (under steering column)
TAHOE 10 Body Control (BCM); (under steering column)
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)
YUKON XL 1500 10 Body Control (BCM); (under steering column)
Frequently Asked Questions
Frequently Asked Questions
Do I need to have this BCM programmed by a dealer?
No. We handle all the programming for you before shipment. Simply provide your vehicle’s VIN during checkout, and the module will arrive ready to install, saving you time and money.
What is a core charge? Do I need to send my old part back?
There is absolutely no core charge for this item. You can keep your old BCM, which is convenient if you ever want to revert to the original part for troubleshooting.
Where is the BCM located on my 2008 Cadillac DTS?
For the 2006-2011 DTS, the BCM is located on the passenger side, behind the glove box area. You will need to remove the glove box to access it.
Will this fix the ‘Service Theft System’ warning?
In many cases, yes. A failing BCM is a very common cause of this warning message and related no-start issues on these GM vehicles. This programmed module restores the proper communication for the security system.
Is this a brand new part?
This is a high-quality, tested replacement part that meets or exceeds original equipment specifications. It is loaded with the newest software from GM to ensure optimal performance and longevity.