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 a security system that has a mind of its own are classic signs of a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can turn your luxury ride into a source of daily frustration. I’ve spent over 20 years in the garage, and I can tell you that chasing these electronic gremlins without addressing the root cause is a waste of time and money. This isn’t just a replacement part; it’s a complete, reliable solution.
This 2008-2013 CTS Body Control Module arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). We handle the complex part for you by flashing it with the latest, most stable software updates directly from GM. This means you can skip the expensive trip to the dealership and the hassle of scheduling a programming appointment. You get a part that’s truly ready for installation, designed to restore the seamless operation you expect from your Cadillac.
Case Study: A Tricky Diagnosis
A customer brought in their 2011 CTS last month with a list of bizarre symptoms: the dome light wouldn’t turn off, the driver’s side window worked intermittently, and the remote key fob was unresponsive. They had already replaced the window switch and a handful of fuses with no luck. After connecting my diagnostic scanner, I saw multiple communication error codes pointing to the BCM. Instead of a dozen small problems, it was one central failure. We installed one of our VIN-programmed BCMs, and within an hour, every single issue was resolved. The car behaved like it just rolled off the factory line. This is the power of replacing the core component correctly the first time.
Common Signs of a Failing BCM
If your vehicle is experiencing any of the following, a failing BCM is the likely culprit. Replacing your 2008-2013 CTS Body Control Module can be the definitive fix.
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors behaving unpredictably.
- ✔ The anti-theft or security system engaging randomly or preventing the car from starting.
- ✔ Dashboard warning lights that stay on without a clear cause (like the airbag light).
- ✔ Horn, wipers, or other accessories not working correctly.
- ✔ Inconsistent communication with diagnostic scan tools.
A Straightforward Guide to BCM Installation
Installing your new BCM is a manageable job for a confident DIYer. Follow these steps carefully to ensure a smooth process. Remember, on the 2008-2013 CTS, the BCM is typically located in the left-hand (driver’s side) of the dashboard.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to allow all systems to power down completely.
- Locate the BCM: On your CTS, you will likely need to remove the lower dash panel beneath the steering column to gain access to the module. It’s a black box with multiple large electrical connectors.
- Disconnect and Remove: Carefully unplug all wiring harnesses from the old BCM. They have locking tabs that need to 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 and securely reconnect all the wiring harnesses. You should hear a ‘click’ as they lock into place.
- Reconnect Battery: Re-attach the negative battery terminal.
- Crucial Final Steps: After installation, two procedures are often required. You will need a professional-grade scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to clear the airbag light. Additionally, some vehicles may require a Brake Pedal Position Sensor recalibration to ensure proper brake light and stability control function. If you are not comfortable with these steps, professional assistance is recommended.
Will This Fit My Vehicle?
This Body Control Module is a direct replacement for a wide range of General Motors vehicles and part numbers. Please verify your vehicle is on this list and that your original part number is listed below for guaranteed compatibility.
Replaces 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
Compatible Models Include:
- Cadillac CTS (2008-2013)
- Cadillac DTS (2006-2011)
- Cadillac Escalade, ESV, EXT (2010)
- Chevrolet Impala (2006-2013)
- GMC Acadia (2007-2012)
- Chevrolet Traverse (2009-2012)
- Buick Enclave (2008-2012)
- And many more GM trucks, vans, and SUVs. Please check the detailed fitment list above.
Frequently Asked Questions
Do I need to program this 2008-2013 CTS Body Control Module?
No. We program the module to your car’s VIN before we ship it. It arrives ready for installation, saving you a trip to the dealer.
Where is the BCM located on my 2011 Cadillac CTS?
The BCM is typically found behind the lower dash panel on the driver’s side, near the steering column.
What do I need to do after installing the BCM?
After physical installation, you will need a diagnostic tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync it with the airbag system. A brake pedal recalibration may also be necessary for full functionality.
Will this fix my intermittent power window and door lock problems?
Yes, erratic power windows and locks are among the most common symptoms of a failing BCM. This part is designed to solve those exact issues.
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship your order until we receive this information.