Are you experiencing bizarre electrical issues in your Cadillac CTS or other GM vehicle? A faulty Body Control Module (BCM) is often the culprit behind a host of frustrating problems that can seem unrelated. The BCM acts as the central nervous system for your vehicle’s body electronics, managing everything from your power windows and locks to the interior lights and security system. When it fails, it can make your vehicle feel unpredictable and unreliable.
This is a direct replacement Body Control Module, part number 25934762, which arrives at your door fully programmed and ready for installation. We eliminate the need for an expensive trip to the dealership by flashing the module with the latest GM software updates, specifically matched to your vehicle’s VIN. Simply provide your VIN at checkout, and we handle the complex programming for you, ensuring a seamless integration with your vehicle’s existing systems.
From the Diagnostic Bay
We once had a 2011 Cadillac CTS in the shop with a classic “haunted car” complaint. The dome lights would flicker, the radio would randomly shut off, and the key fob worked intermittently. The owner had already replaced the battery and checked all the fuses. After connecting our diagnostic tool, we found multiple communication error codes all pointing back to one source. Instead of chasing individual components, we identified the failing BCM. Installing a pre-programmed module like this one resolved all the issues in under an hour, saving the customer hundreds in diagnostic time and unnecessary parts.
Is Your BCM Failing?
A failing BCM can manifest in numerous ways. Look out for these common symptoms:
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ The security system engaging randomly or the key fob not being recognized.
- ✔ Dashboard warning lights appearing for no reason.
- ✔ Communication errors when trying to scan the vehicle with a diagnostic tool.
- ✔ A/C and climate control functions not working correctly.
Installing Your 2008-2013 CTS Body Control Module
This module is designed for a straightforward installation. However, depending on your specific vehicle, a few additional steps, known as relearn procedures, may be required after the new BCM is installed. These procedures sync the new module with other systems in your car.
- 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 is a security measure that ensures the BCM and airbag system are correctly paired.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration. This ensures your brake lights and traction control system function as intended with the new module.
Please consult a factory service manual or a qualified technician for guidance specific to your vehicle.
Broad GM Compatibility
While this is a key component for the 2008-2013 Cadillac CTS, this BCM is also a direct replacement for a wide range of GM vehicles, including the Chevrolet Impala, Tahoe, Equinox, GMC Acadia, Buick Enclave, and many more. It is a compatible 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. Always verify fitment using the compatibility tool on this page.
Frequently Asked Questions
What is a Body Control Module (BCM)?
The BCM is a computer in your vehicle that controls and monitors most of the non-engine related electronic accessories, such as power windows, lights, security systems, door locks, and climate controls.
Is this BCM ready to install when I receive it?
Yes! This module is fully programmed to your vehicle’s specific VIN before it is shipped. This plug-and-play service saves you a trip to the dealer for expensive programming.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot program and ship the module without it.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module.
What if my airbag light turns on after installation?
This can happen on some models. It means the BCM needs to be synced with the airbag system (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure.
Will this fit my vehicle if my original part number is on the list?
Yes, this module is a direct replacement for all part numbers listed in the description. We will program it to function correctly for your specific vehicle based on your VIN.