Restore Your Cadillac’s Electrical System with a Reliable BCM
If your 2006-2011 Cadillac DTS is experiencing bizarre electrical issues, you’re not alone. As a technician with over 20 years of experience, I’ve seen firsthand how a failing Body Control Module (BCM) can turn a luxury vehicle into a source of constant frustration. The BCM is the central command center for your car’s body electronics—from the power windows and locks to the interior lights and security system. When it starts to fail, it can feel like your car has a mind of its own.
This replacement Body Control Module is the definitive solution to those problems. We take the hassle out of the repair by pre-programming the module to your vehicle’s specific VIN before we ship it. This means it arrives loaded with the latest GM software updates, ready for installation. You get to bypass the expensive trip to the dealership for programming, saving you significant time and money.
Common Signs of a Failing BCM
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not working correctly.
- ✔ The vehicle’s security system preventing the car from starting.
- ✔ False warnings appearing on the instrument cluster (e.g., “Service Theft System”).
- ✔ Diagnostic Trouble Codes (DTCs) related to communication errors, such as U0140, U0155, or other U-codes.
- ✔ Inconsistent radio or climate control operation.
A Technician’s Notebook
I remember a 2009 Cadillac DTS that came into the shop with a classic BCM failure case. The owner reported that the interior lights would flicker randomly while driving, and occasionally the car wouldn’t start, displaying a security warning. We scanned it and found a slew of communication codes. Instead of a costly diagnostic rabbit hole, experience pointed directly to the BCM. We swapped in a pre-programmed module just like this one. The total time from diagnosis to fix was under an hour, and the customer drove away with a perfectly functioning car, having saved hundreds compared to the dealership quote.
Your Straightforward BCM Installation Guide
Installing your new BCM is a manageable job for a confident DIYer. On the 2006-2011 Cadillac DTS, the BCM is typically located behind the dashboard on the right-hand (passenger) side. Always consult a service manual for your specific vehicle’s procedure.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Access the Module: You will likely need to remove the glove box or lower dash trim panels on the passenger side to gain access to the BCM.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. Note their orientation. Then, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount the new, pre-programmed BCM in place of the old one. Securely reconnect all electrical connectors, ensuring they click into place.
- Reassemble and Reconnect: Reinstall any trim panels you removed. Reconnect the negative battery terminal.
- Perform Final Checks: Start the vehicle and test all body functions—windows, locks, lights, wipers, etc.—to confirm the repair was successful.
Important Post-Installation Information
While our VIN programming makes this a near plug-and-play repair, some GM vehicles may require additional steps after installation:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure correct brake light and traction control operation.
Disclaimer: Procedures can vary. We always recommend consulting a factory service manual or a qualified technician for your specific vehicle.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of GM vehicles and part numbers. Please verify your original part number is on this list before ordering.
This module replaces the following 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
Fits Models Including:
AVALANCHE 1500 10
CAPRICE 11-13
CAPTIVA SPORT 12
CTS 08-13
DTS 06-11
ENCLAVE 08-12
EQUINOX 07-09
ESCALADE 10
ESCALADE ESV 10
ESCALADE EXT 10
EXPRESS 1500 VAN 08-12
EXPRESS 2500 VAN 08-12
EXPRESS 3500 VAN 08-12
G8 08-09
HUMMER H2 08-09
IMPALA 06-13
LUCERNE 06-11
MONTE CARLO 06-07
OUTLOOK 07-10
SAVANA 1500 VAN 08-12
SAVANA 2500 VAN 08-12
SAVANA 3500 VAN 08-12
SRX 07-09
STS 10
SUBURBAN 1500 10
TAHOE 10
TORRENT 07-09
TRAVERSE 09-12
VUE 08-10
YUKON 10
YUKON XL 1500 10