Restore Full Functionality to Your Cadillac CTS
Are you dealing with baffling electrical issues in your 2008-2013 Cadillac CTS? Flickering lights, malfunctioning power windows or door locks, or a persistent ‘Service Theft System’ message on your dash? These are classic signs of a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, when the BCM falters, it can cause a cascade of frustrating and unpredictable problems. I’ve seen it hundreds of times in my shop—a perfectly good car rendered unreliable by a single faulty module.
This isn’t just a replacement part; it’s a complete, hassle-free solution. We offer a professional cloning service for your 2008-2013 CTS Body Control Module. This means we transfer all the critical, vehicle-specific data—including your VIN, security keys, and optional features—from your original BCM to this fully tested replacement unit. The result is a true plug-and-play module that requires no expensive trip to the dealership for programming. It will behave exactly as your original did when it was new.
From the Diagnostic Bay: A CTS That Had a Mind of Its Own
A customer brought in a 2011 CTS with a list of complaints that sounded like the car was haunted. The dome light would stay on, the driver’s side window wouldn’t go down, and the key fob worked only intermittently. They were worried about a massive repair bill for chasing down multiple electrical shorts. After a quick scan, I saw several communication codes (U-codes) pointing to the BCM. Instead of a complex rewiring job, the fix was simple: a failing BCM. By cloning his original module, we had him back on the road the next day for a fraction of what the dealer quoted for a new module and programming. The car’s ‘personality quirks’ were gone, and all systems returned to normal.
Is Your Cadillac Showing These Symptoms?
- ✔ Erratic or non-functional interior/exterior lights
- ✔ Power windows, mirrors, or door locks operating intermittently or not at all
- ✔ The security or anti-theft system light is on, or the car won’t start
- ✔ Key fob not being recognized by the vehicle
- ✔ Diagnostic Trouble Codes (DTCs) like U0140, B1001, or other communication errors stored in the system
- ✔ Horn honking unexpectedly or not working
Your Straightforward BCM Installation Guide
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery and wait about 10 minutes to ensure all systems are powered down.
- ✔ Locate the BCM: On the 2008-2013 Cadillac CTS, the Body Control Module is typically located in the cabin, on the left-hand (driver’s) side of the dash, often behind the lower dash panel.
- ✔ Remove the Old Module: Carefully unplug the electrical connectors from the 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 your newly programmed BCM in the same location. Securely reconnect all electrical connectors, ensuring they click into place.
- ✔ Power Up: Reconnect the negative battery terminal. Your vehicle’s electronics are now restored.
Important Post-Installation Note: While our cloning service eliminates the need for programming, some vehicles may require simple relearn procedures. If your airbag light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ function. A ‘Brake Pedal Position Relearn’ might also be necessary for proper brake light and traction control operation. Always consult a service manual for your specific model’s requirements.
Guaranteed Fitment for Your Vehicle
This BCM is a direct replacement for a wide range of GM vehicles and part numbers. Our cloning service ensures it is programmed specifically for your car’s VIN and options. Please verify your part number against the list below.
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
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, 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, 25892622
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25892622
EXPRESS 1500 VAN 08-12 Body Control (BCM); (center dash)
EXPRESS 2500 VAN 08-12 Body Control (BCM)
EXPRESS 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 06-13 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)
SAVANA 1500 VAN 08-12 Body Control (BCM); (center dash)
SAVANA 2500 VAN 08-12 Body Control (BCM)
SAVANA 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, 25892622
TAHOE 10 Body Control (BCM); (under steering column), ID 20815898, 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, 25892622
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
Frequently Asked Questions
Frequently Asked Questions
What is a BCM cloning service?
It’s a process where we extract the essential software and security data from your original, failing BCM and transfer it to a replacement module. This makes the new module an exact ‘clone’ of your old one, ensuring it works perfectly with your vehicle’s specific configuration without any additional programming.
Why can’t I just install a used BCM from a junkyard?
A used BCM is programmed to the VIN and options of the vehicle it came from. When installed in your car, it will cause a VIN mismatch, activating the anti-theft system and preventing the car from starting. Our cloning service bypasses this entire problem.
Will I need to perform any programming after installation?
No. The module arrives ready for installation. However, as with any BCM replacement, your vehicle may require a simple ‘relearn’ procedure for the Brake Pedal Position sensor or Airbag system (SDM), which can sometimes be done at home or may require a standard diagnostic tool.
How does the process work after I purchase?
After you place your order, you will need to ship your original BCM to us. Once we receive it, our technicians will perform the cloning service and ship both your original module and the newly programmed replacement back to you, typically within 1-2 business days.
Is my original module returned to me?
Yes, absolutely. Your original module is always returned to you along with the programmed replacement unit. We do not keep the core part.
What if my original BCM is not communicating at all?
In many cases, even if a BCM is failing, the core data can still be extracted. Please contact us with the details of your BCM’s failure, and our technicians can advise on the likelihood of a successful data transfer.