Restore Your Vehicle’s Electrical System with a Plug-and-Play BCM
Is your 2008-2013 Cadillac CTS or other GM vehicle plagued by mysterious electrical problems? Flickering lights, malfunctioning power windows, a dead instrument cluster, or a security system that prevents the car from starting are all common symptoms of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it fails, it can cause a wide range of frustrating and unpredictable issues. Don’t let a faulty module keep you off the road. This replacement Body Control Module, part number 15948438, is the reliable, straightforward solution you need.
From the Diagnostic Bay
We had a 2011 Cadillac CTS towed in that was a textbook case of BCM failure. The owner reported that one day the turn signals stopped working, the next day the power locks were acting on their own, and finally, the car wouldn’t start, displaying a ‘Service Theft System’ message. A scan showed multiple communication errors across different systems, all pointing back to the BCM. Instead of a costly and time-consuming repair at the dealership, we installed one of our VIN-programmed modules. The car started on the first try, and all the strange electrical gremlins were gone. It’s a common failure, but thankfully, it’s a simple fix with the right part.
The Importance of a Programmed 2008-2013 CTS BCM
Modern vehicles require modules to be specifically coded to their unique Vehicle Identification Number (VIN). A generic, non-programmed module from a junkyard or parts store simply will not work. Our service eliminates the hassle and expense of a trip to the dealership for programming. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash this BCM with the latest, most stable GM software specific to your car’s options and features. This ensures a seamless installation process and restores your vehicle’s functions to factory specifications.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional interior/exterior lights
- ✔ Power windows, door locks, or mirrors operating erratically or not at all
- ✔ Instrument cluster gauges behaving strangely or going dark
- ✔ Security system faults or anti-theft light illuminated
- ✔ Vehicle failing to start despite a good battery and starter
- ✔ False warning lights on the dashboard (e.g., airbag, ABS)
- ✔ Radio or climate control malfunctions
Installation and Post-Install Procedures
While this module is designed for a direct replacement, some vehicles may require simple post-installation relearn procedures. After installation, if you notice an airbag warning light, a professional scan tool will be needed to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems. Additionally, some models may require a ‘Brake Pedal Position Relearn’ to ensure proper brake light and traction control operation. These procedures are straightforward for any qualified technician. Best of all, there is no core charge, so you can keep your original module.
This module is a direct replacement for a wide range of part numbers, including: 10382479, 15093910, 15276271, 15948438, 20815898, 22860591, 25892622, and many more, fitting dozens of GM models from Cadillac, Chevrolet, GMC, Buick, and Saturn. Please verify your part number and check the fitment list to ensure compatibility.
Frequently Asked Questions
Do I need to send you my old BCM?
No. This is a replacement part and there is no core charge. We program the replacement module using your VIN, so we do not need your original BCM.
Is this BCM difficult to install?
The physical installation is typically straightforward, involving unplugging the old module and plugging in the new one. The BCM is often located under the dash on the driver’s side. However, some vehicles may require post-installation procedures like an airbag system sync, which requires a professional scan tool.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit VIN. We cannot ship your order until we receive this information, as it is essential for programming the module correctly for your specific vehicle.
What if my part number isn’t listed but my vehicle is?
The list of compatible part numbers is extensive as GM often supersedes parts. If your vehicle model and year are listed as compatible, this module will likely work. The key is our VIN-based programming which configures the module for your exact vehicle build.
Will this fix my ‘Service Theft System’ message?
A failing BCM is a very common cause of anti-theft system issues and no-start conditions. While not a guarantee for every case, replacing a faulty BCM with our correctly programmed unit often resolves these problems.