Restore Full Control Over Your Cadillac’s Electronics
Are you dealing with baffling electrical issues in your Cadillac CTS? One minute the power windows work, the next they don’t. The interior lights flicker randomly, or the security system seems to have a mind of its own. These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central hub for your vehicle’s body electronics, and when it starts to go, it can cause a cascade of frustrating and unpredictable problems. Instead of facing a costly bill and a long wait at the dealership, we offer a direct, reliable solution.
This is a replacement Body Control Module that is fully compatible with your vehicle. The best part? It arrives at your door ready to install thanks to our professional Cloning Service. We transfer the vital configuration data from your original, faulty BCM directly onto this replacement unit. This process ensures that your vehicle’s keys, security information, and specific options are retained, making the installation a true plug-and-play process. No need for expensive dealer-specific scan tools or programming appointments. You get a dependable part that restores your car’s functionality right out of the box.
A Technician’s Notebook
I remember a 2011 CTS that was a real head-scratcher. It came in for an intermittent no-start and a dashboard that would light up like a Christmas tree for no reason. The owner had already replaced the battery and checked the alternator. After running network diagnostics, I noticed sporadic communication loss with multiple systems, all pointing back to a single point of failure. We pulled the BCM, and sure enough, we found faint traces of corrosion on the main connector—likely from a small, long-repaired windshield leak. A standard replacement would have meant a tow to the dealer. Instead, we used a cloned 2008-2013 CTS Body Control Module. We transferred the data from the old unit, plugged the new one in, and every single electrical gremlin vanished instantly. The car started every time, and the dash was clear. It’s a perfect example of how the right part, correctly prepared, can save hours of diagnostic headaches and hundreds of dollars.
Common Signs of a Failing BCM
If you’re experiencing any of the following, a faulty BCM is the most likely cause. A proper diagnosis is always recommended, but these symptoms are strong indicators.
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that flicker, stay on, or won’t turn on at all.
- ✔ The security system or alarm malfunctions or engages randomly.
- ✔ The key fob stops working intermittently or completely.
- ✔ Warning lights on the dashboard appear without a clear cause.
- ✔ Communication-related Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or other U-codes indicating loss of communication with other modules.
A Straightforward Guide to Installation
For the DIY enthusiast or professional mechanic, installing this cloned 2008-2013 CTS Body Control Module is a manageable job. The key is our cloning service, which handles the complex programming ahead of time.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On the 2008-2013 Cadillac CTS, the Body Control Module is typically located on the left (driver’s) side of the dashboard, often behind the lower dash panel or near the steering column.
- Remove Connectors: Carefully disconnect all electrical connectors from the old BCM. They have locking tabs that need to be depressed to be released. Do not force them.
- Swap the Modules: Unbolt or unclip the old BCM from its mounting bracket and remove it. Place the new, cloned BCM into the same position and secure it.
- Reconnect Everything: Plug all electrical connectors firmly into the new module. You should hear a click as they lock into place.
- Power Up: Reconnect the negative battery terminal. Turn the ignition to the ‘On’ position and test all related functions—windows, locks, lights, etc.—to confirm the repair.
Important Post-Installation Notes
While our cloning makes this a plug-and-play repair, some vehicle systems may require a ‘handshake’ with the new BCM. If you see an airbag light, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” procedure. Similarly, a Brake Pedal Position relearn might be required on some models to ensure brake light and traction control accuracy. Always refer to a factory service manual for your specific vehicle’s requirements.
Guaranteed Vehicle Fitment
This module is a direct replacement for a wide range of General Motors vehicles. Your vehicle is compatible if it is listed below and your original module has one of the following part numbers:
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
ACADIA 07-12
AVALANCHE 1500 10 (ID 25892622)
CAPRICE 11-13
CAPTIVA SPORT 12 (ID 20921435, 20921436, 22860591)
CTS 08-13
DTS 06-11
ENCLAVE 08-12
EQUINOX 07-09
ESCALADE 10 (ID 25892622, 20815898)
ESCALADE ESV 10 (ID 25892622, 20815898)
ESCALADE EXT 10 (ID 25892622)
EXPRESS VANS 08-12
G8 08-09
HUMMER H2 08-09
IMPALA 06-13
LUCERNE 06-11
MONTE CARLO 06-07
OUTLOOK 07-10
SAVANA VANS 08-12
SRX 07-09
STS 10
SUBURBAN 1500 10 (ID 25892622, 20815898)
TAHOE 10 (ID 25892622, 20815898)
TORRENT 07-09
TRAVERSE 09-12
VUE 08-10
YUKON 10 (ID 25892622, 20815898)
YUKON XL 1500 10 (ID 20815898, 25892622)
Frequently Asked Questions
Frequently Asked Questions
Why do you need my VIN and my old module for the cloning service?
Your VIN allows us to load the latest factory software updates from GM for your specific vehicle. We then need your original module to transfer its unique security data, key information, and option configurations. This combination ensures the replacement module is a perfect electronic match for your car.
Is this BCM truly plug-and-play?
Yes, because of our cloning process, you will not need to perform any programming or initialization with a dealer scan tool for the module itself. It will recognize your existing keys and vehicle settings upon installation, saving you time and money.
What do I do if my airbag light is on after installation?
In some cases, the new BCM and the airbag system (SDM) need to be electronically re-introduced. This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure. This is a quick process for any qualified mechanic.
Do I get my old BCM back?
Absolutely. We always return your original module with your newly prepared replacement. We do not require it as a core, so it is yours to keep.
How do I know this will fix my car’s problem?
While the symptoms listed are highly indicative of a BCM failure, we always recommend a thorough diagnosis by a qualified technician. This module will correct issues caused by a faulty BCM, but it cannot fix problems originating from other components, such as bad wiring or faulty sensors.