Restore Your Cadillac’s Electrical System with a Plug-and-Play BCM
If you’re dealing with bizarre and frustrating electrical issues in your 2008-2013 Cadillac CTS, a failing Body Control Module (BCM) is often the culprit. As the central nervous system for your vehicle’s comfort and convenience features, a faulty BCM can cause a cascade of problems that seem unrelated, from flickering interior lights and malfunctioning power windows to a security system that won’t cooperate. This isn’t just an annoyance; it can impact your vehicle’s safety and daily usability.
We offer a dependable and straightforward solution: a replacement Body Control Module, part number 95151084, that arrives at your door fully programmed to your vehicle’s specific VIN. We load it with the latest official GM software updates, ensuring seamless integration and optimal performance. This eliminates the need for expensive dealership programming or specialized diagnostic tools, putting the power of repair back in your hands.
A Technician’s Notebook: The Ghost in the Machine
I remember a 2011 CTS that came into the shop with a laundry list of complaints from the owner. The radio would randomly shut off, the driver’s side window wouldn’t go down, and the dash lights would occasionally flicker for no reason. The owner had already replaced the battery and checked all the fuses. After connecting my scan tool, I found a dozen communication error codes (U-codes) pointing to a network problem. Instead of a complex wiring issue, my experience pointed straight to the BCM. These modules are the traffic cops of the car’s data network; when they fail, they start causing chaos. We installed a VIN-programmed BCM, and instantly, all the gremlins vanished. This is a classic failure I’ve seen hundreds of times, and a pre-programmed module is the most efficient fix.
Is Your Cadillac Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the solution you need:
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system acting up, causing no-start conditions or false alarms.
- ✔ Inaccurate readings on the instrument cluster gauges.
- ✔ The key fob is not being recognized by the vehicle.
- ✔ Multiple communication Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or U0164.
- ✔ A persistent “Service Theft Deterrent System” message on the dash.
A Straightforward Guide to BCM Installation
Replacing the BCM on your CTS is a manageable job for a confident DIYer. While the exact location can vary slightly, you’ll generally find it accessible. Always have your vehicle’s service manual for reference.
- Safety First: 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 most 2008-2013 Cadillac CTS models, the Body Control Module is located on the left-hand (driver’s) side of the dashboard, often behind the lower dash panel or near the steering column.
- Remove Connectors: Carefully disconnect the multiple electrical harness connectors from the old BCM. They have locking tabs that need to be depressed to be removed. Do not force them.
- Swap the Module: Unbolt or unclip the old BCM from its mounting bracket and remove it. Install your new, pre-programmed module in its place.
- Reconnect Everything: Securely plug all electrical connectors back into the new BCM. You should hear a click as they lock into place. Reconnect the negative battery terminal.
- Perform Final Checks: Start the vehicle and test all body functions—lights, windows, locks, wipers, and radio—to confirm the repair was successful.
Important Post-Installation Information
Because this module is central to many systems, a couple of additional steps may be required after installation. These are known as ‘relearn’ or ‘synchronization’ procedures.
- ✔ Airbag System Sync: If the airbag warning light is illuminated after you install the new BCM, a procedure called “Setup SDM Primary Key in BCM” is necessary. This requires a professional-grade scan tool to sync the new BCM with the airbag system’s Sensing and Diagnostic Module (SDM).
- ✔ Brake Pedal Position Relearn: On some models, the Brake Pedal Position (BPP) sensor may need to be recalibrated. This is essential for the proper operation of your brake lights and electronic stability control systems.
- ✔ No Core Charge: You can keep your old module. There is no core charge and no need to send the original part back to us.
Disclaimer: Vehicle systems vary. We strongly recommend consulting a factory service manual or a certified automotive technician for procedures specific to your vehicle.
Verified Vehicle Compatibility
This Body Control Module is a direct replacement for a wide range of General Motors vehicles and part numbers. Please confirm your vehicle is on this list. The primary part number for this listing is 95151084, which interchanges with the following:
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.
ACADIA 07-12 Body Control (BCM); (LH dash)
AVALANCHE 1500 10 Body Control (BCM); (under steering column), ID 25892622
CAPRICE 11-13 Body Control (BCM)
CAPTIVA SPORT 12 Body Control (BCM); (center dash), ID 20921435, 20921436, or 22860591
CTS 08-13 Body Control (BCM); LH dash
CTS 08 Body Control (BCM); RH dash
DTS 06-11 Body Control (BCM); (RH center dash)
ENCLAVE 08-12 Body Control (BCM); (LH dash)
EQUINOX 07-09 Body Control (BCM); (center dash)
ESCALADE 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25892622
EXPRESS VANS 08-12
G8 08-09 Body Control (BCM); (center dash)
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
IMPALA 06-13
LUCERNE 06-11 Body Control (BCM); (right side dash)
MONTE CARLO 06-07 Body Control (BCM); (LH steering column)
OUTLOOK 07-10 Body Control (BCM); (center dash)
SAVANA VANS 08-12
SRX 07-09 Body Control (BCM); LH dash
STS 10 Body Control (BCM); center dash
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
TAHOE 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
TORRENT 07-09 Body Control (BCM); (center dash)
TRAVERSE 09-12 Body Control (BCM); (LH dash)
VUE 08-10 Body Control (BCM); (center dash)
YUKON 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
Frequently Asked Questions
Do I need to program this BCM?
Do I need to program this BCM?
No. We handle all the programming for you before shipment. Simply provide your vehicle’s 17-digit VIN during or after checkout, and we will flash the module with the latest GM software specific to your car. It arrives ready for installation.
Where is the BCM located on my 2011 Cadillac CTS?
For the 2008-2013 Cadillac CTS, the Body Control Module is typically found behind the lower dash panel on the driver’s side, near the steering column and fuse panel area.
What happens if I forget to provide my VIN?
Providing your VIN is a required step. We cannot program or ship your BCM without it, as the software is vehicle-specific. We will contact you to request the VIN if it is not included with your order, which may delay shipment.
Is there a core charge for this part?
No, there is absolutely no core charge. You are not required to send your old, faulty BCM back to us, which saves you time and return shipping costs.
My airbag light is on. Will this BCM fix it?
If the BCM is the cause of the airbag light, this part will resolve the issue. However, after installation, the new BCM must be synchronized with the airbag system (SDM) using a professional scan tool. This is a standard security procedure on modern vehicles.