Restore Your Cadillac’s Functionality with a Plug-and-Play BCM
If your 2008-2013 Cadillac CTS is plagued by baffling electrical problems, a failing Body Control Module (BCM) is the likely culprit. As the central nervous system for your vehicle’s comfort and convenience features, a faulty BCM can cause a cascade of frustrating issues. This isn’t just an inconvenience; it can affect vehicle security and safety. We offer a reliable and straightforward solution that gets you back on the road without the exorbitant costs and scheduling hassles of a dealership visit.
A Technician’s Notebook: The Case of the Ghostly CTS
I remember a 2011 CTS that came into the shop with a list of symptoms that sounded like the car was haunted. The dome lights would flicker, the radio would randomly shut off, and the driver’s power window worked only when it wanted to. The owner had already replaced the battery and checked fuses, but the gremlins persisted. A quick scan revealed a slew of communication codes (U-codes) pointing to the BCM. Instead of a costly new module and hours of programming, we performed a cloning service. By transferring the original data to a replacement unit, all the vehicle-specific settings were preserved. The result? A 30-minute swap in the bay, and the car behaved perfectly. It’s a textbook example of how a failing 2008-2013 CTS BCM can mimic a dozen other problems.
What is Our BCM Cloning Service?
Forget about towing your car to the dealer and waiting for complex programming. Our unique cloning service makes this repair simple. Here’s how it works: you send us your vehicle’s original BCM. We then perform a precise, one-to-one data transfer of all its critical information—including VIN, mileage, and security keys—to this fully tested replacement module. We then ship both your original module and the ready-to-install replacement back to you. The result is a true plug-and-play component, programmed specifically for your car’s unique configuration.
Is Your Cadillac Exhibiting These BCM Failure Signs?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s time to consider a replacement:
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ The security or anti-theft system light is illuminated, or the car won’t start.
- ✔ Inaccurate readings on the instrument cluster gauges.
- ✔ Horn, wipers, or radio functioning intermittently.
- ✔ Diagnostic trouble codes (DTCs) related to communication, such as U0140 (Lost Communication With Body Control Module).
A Straightforward Guide to Installation
Installing your newly programmed 2008-2013 CTS BCM is a manageable job for a confident DIYer. For the 2008-2013 CTS, the BCM is typically located on the left-hand (driver’s) side of the dash.
- Safety First: Always disconnect the negative terminal from your car’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On the CTS, you’ll usually find the BCM behind the lower dash panel on the driver’s side, near the steering column. You may need to remove a trim panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount the replacement BCM in the same location and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock into place.
- Power Up: Reconnect the negative battery terminal. Your vehicle’s electronics should now function correctly with the cloned module.
Important Post-Installation Steps
In some cases, additional synchronization procedures may be needed after installation. This is normal and ensures all vehicle systems communicate properly.
- Airbag System Sync: If the airbag warning light is on after the swap, a ‘Setup SDM Primary Key in BCM’ procedure is required. This must be done with a professional-grade scan tool to sync the airbag system with the new BCM.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure correct brake light and stability control operation.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a certified technician if you are unsure about any step.
Verified Vehicle Compatibility
This BCM is a direct replacement for a wide range of GM vehicles and is compatible with numerous part numbers, ensuring a perfect match. Please confirm your vehicle is on this list and that your original part number is listed below. This is a reliable solution for your 2008-2013 CTS BCM and many other models.
This part is a direct replacement for 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
EXPRESS 2500 VAN 10 Body Control (BCM); (center dash), 6.0L
EXPRESS 3500 VAN 08-09 Body Control (BCM); (center dash)
SAVANA 3500 VAN 10 Body Control (BCM); (center dash), 6.6L, VIN 6 (8th digit, opt LMM)
IMPALA 06-12 Body Control (BCM); (LH dash)
SAVANA 2500 VAN 10 Body Control (BCM); (center dash), 4.8L
ACADIA 07-12 Body Control (BCM); (LH dash)
MONTE CARLO 06-07 Body Control (BCM); (LH steering column)
TAHOE 10 Body Control (BCM); (under steering column), ID 25892622
TRAVERSE 09-12 Body Control (BCM); (LH dash)
EXPRESS 3500 VAN 10 Body Control (BCM); (center dash), 6.6L, VIN 6 (8th digit, opt LMM)
YUKON 10 Body Control (BCM); (under steering column), ID 25892622
SAVANA 2500 VAN 11-12 Body Control (BCM); (center dash)
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 20815898
CAPTIVA SPORT 12 Body Control (BCM); (center dash), ID 20921435
CAPTIVA SPORT 12 Body Control (BCM); (center dash), ID 22860591
DTS 06-11 Body Control (BCM); (RH center dash)
OUTLOOK 07-10 Body Control (BCM); (center dash)
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 25892622
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25892622
SAVANA 1500 VAN 08-12 Body Control (BCM); (center dash)
EXPRESS 2500 VAN 11-12 Body Control (BCM)
EXPRESS 1500 VAN 08-12 Body Control (BCM); (center dash)
STS 10 Body Control (BCM); center dash
SAVANA 3500 VAN 08-09 Body Control (BCM); (center dash)
TORRENT 07-09 Body Control (BCM); (center dash)
SAVANA 2500 VAN 10 Body Control (BCM); (center dash), 6.0L
TAHOE 10 Body Control (BCM); (under steering column), ID 20815898
CTS 08-13 Body Control (BCM); LH dash
CAPTIVA SPORT 12 Body Control (BCM); (center dash), ID 20921436
EXPRESS 3500 VAN 10 Body Control (BCM); (center dash), 6.0L
G8 08-09 Body Control (BCM); (center dash)
IMPALA 13 Body Control (BCM); (LH dash), ID 22820315
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 20815898
AVALANCHE 1500 10 Body Control (BCM); (under steering column), ID 25892622
EXPRESS 2500 VAN 10 Body Control (BCM); (center dash), 4.8L
EXPRESS 2500 VAN 10 Body Control (BCM); (center dash), 6.6L, VIN 6 (8th digit, opt LMM)
YUKON 10 Body Control (BCM); (under steering column), ID 20815898
ESCALADE 10 Body Control (BCM); (under steering column), ID 25892622
LUCERNE 06-11 Body Control (BCM); (right side dash)
CTS 08 Body Control (BCM); RH dash
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 25892622
EXPRESS 3500 VAN 10 Body Control (BCM); (center dash), 4.8L
SAVANA 2500 VAN 08-09 Body Control (BCM); (center dash)
SAVANA 3500 VAN 10 Body Control (BCM); (center dash), 4.8L
SAVANA 3500 VAN 10 Body Control (BCM); (center dash), 6.0L
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 25892622
ESCALADE 10 Body Control (BCM); (under steering column), ID 20815898
SRX 07-09 Body Control (BCM); LH dash
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 20815898
EXPRESS 3500 VAN 11-12 Body Control (BCM)
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
SAVANA 3500 VAN 11-12 Body Control (BCM)
VUE 08-10 Body Control (BCM); (center dash)
CAPRICE 11-13 Body Control (BCM)
ENCLAVE 08-12 Body Control (BCM); (LH dash)
EXPRESS 2500 VAN 08-09 Body Control (BCM); (center dash)
SAVANA 2500 VAN 10 Body Control (BCM); (center dash), 6.6L, VIN 6 (8th digit, opt LMM)