Restore Full Functionality to Your Vehicle’s Electronics
Are you battling a cascade of frustrating electrical problems in your Cadillac DTS or other GM vehicle? Intermittent power windows, flickering interior lights, a temperamental security system, or dashboard warning lights that come and go are all classic signs of a failing Body Control Module (BCM). The BCM acts as the central nervous system for your vehicle’s comfort and convenience features. When it malfunctions, it can make your daily drive an unpredictable and annoying experience. This isn’t just a minor inconvenience; a faulty BCM can affect vehicle security and safety systems.
This replacement Body Control Module is the definitive solution to these electrical gremlins. We take the guesswork and hassle out of the repair process. Before this module ships, it is professionally programmed with the latest official GM software, specifically matched to your vehicle’s unique Vehicle Identification Number (VIN). This critical step ensures that the module communicates flawlessly with your car’s existing systems, effectively restoring it to factory specifications without requiring an expensive trip to the dealership for programming.
From the Diagnostic Bay
We once had a 2008 Cadillac DTS come into the shop with the owner at his wit’s end. He had replaced the driver’s side window motor twice and the master window switch, but the window would still only work sporadically. He was convinced the car was cursed. After a quick scan, we saw communication fault codes pointing to the BCM. The internal circuits responsible for that specific window output were failing intermittently. We installed a VIN-programmed BCM, and everything started working perfectly. It’s a classic case where chasing the symptom (the window) instead of the root cause (the BCM) costs time and money. A central failure can create many misleading symptoms.
Diagnosing a Failing 2006-2011 DTS BCM
A failing Body Control Module can manifest in numerous ways, often seeming like multiple unrelated problems are happening at once. If your vehicle is exhibiting several of the following symptoms, your BCM is the most likely culprit.
- ✔ Power windows, door locks, or mirrors operate intermittently or not at all.
- ✔ Interior dome lights or dashboard lights flicker, stay on, or won’t turn on.
- ✔ The vehicle’s security system or keyless entry malfunctions, causing false alarms or preventing you from locking/unlocking the doors.
- ✔ The horn honks unexpectedly or doesn’t work when pressed.
- ✔ Warning lights for systems like ABS, airbags, or traction control illuminate on the dash without a clear mechanical cause.
- ✔ The radio or climate control system behaves erratically.
- ✔ Rapid battery drain when the vehicle is turned off, caused by the BCM failing to let other modules go to ‘sleep’.
The Plug-and-Programmed Solution
Our process is designed for simplicity and effectiveness. By providing us with your VIN during checkout, you ensure that the module you receive is prepared for your exact vehicle configuration. This means the BCM will correctly manage all the specific options your car was built with, from the type of audio system to the security features. This eliminates compatibility issues and drastically simplifies the installation process for you or your mechanic.
Installation and Post-Install Procedures
While this module is programmed to be as close to plug-and-play as possible, certain vehicle systems may require a recalibration or sync procedure after installation. This is a normal part of replacing a major electronic component. The most common procedures include:
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a capable diagnostic scan tool. This syncs the new BCM with the airbag system’s Supplemental Restraint System (SRS) module.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure proper function of the brake lights and stability control systems.
Please note: Specific requirements can vary by vehicle. We always recommend consulting a factory service manual or a qualified technician for guidance.
Guaranteed Fitment and Compatibility
This BCM is a direct replacement for a wide range of GM vehicles and part numbers. Please verify that your original module’s part number is on the list below to ensure 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
This part will fit these makes and models with these options
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer in your vehicle that controls and monitors a wide variety of non-engine-related functions. This includes power windows, locks, interior and exterior lighting, security systems, wipers, and sometimes even the climate control and radio.
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the specific software and settings for your car’s exact features and options. This ensures perfect compatibility and function, saving you a costly and time-consuming trip to the dealer for programming.
Is this BCM difficult to install?
The physical installation is typically straightforward, involving the removal of a few dash panels and disconnecting electrical connectors. However, as noted, some vehicles may require post-installation electronic procedures with a professional scan tool to sync security or safety systems. We recommend installation by a qualified mechanic if you are not comfortable with these procedures.
What happens if my airbag light comes on after installation?
This is a known possibility. It means the new BCM needs to be electronically ‘introduced’ to the airbag system module (SDM). A mechanic with a high-level scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve the light.
Will this BCM fix all my car’s electrical problems?
This module will correct any issues directly caused by a failing BCM. If your problems persist after installation, it’s possible there is an issue elsewhere in the system, such as a faulty switch, wiring, or another module. However, the symptoms listed above are overwhelmingly caused by BCM failure.