Restore Your Cadillac’s Electrical Functions and Peace of Mind
Is your 2008-2013 Cadillac CTS experiencing bizarre electrical problems? Flickering lights, unresponsive power windows, a dead key fob, or a security system that prevents your car from starting are all classic signs of a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and seemingly unrelated issues. I’ve spent over 20 years diagnosing these exact problems, and this pre-programmed BCM is the reliable, cost-effective solution you need.
We take the guesswork and dealer expense out of the equation. Simply provide us with your vehicle’s VIN after purchase, and our experts will program this module with the latest GM software specific to your car. It arrives at your door ready for installation, eliminating the need for costly dealership programming or specialized tools. This is the direct fix for restoring the comfort, convenience, and security features of your vehicle.
A Technician’s Notebook: The Intermittent Gremlin
I remember a 2011 CTS that came into the shop with a list of intermittent complaints that had the owner at his wit’s end. The radio would cut out, the power locks would work one minute and not the next, and the remote start was completely unreliable. The owner had already replaced the battery and key fob batteries with no luck. A quick scan revealed multiple communication loss codes (U-codes) with various modules. This pointed directly to the BCM, the network controller. By replacing it with a VIN-programmed module like this one, we resolved all the issues in one go, saving the customer hundreds compared to a dealer visit.
Is Your Cadillac Showing These Symptoms?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, this module is the likely solution for your 2008-2013 CTS BCM problems:
- âś” Erratic or non-functional power windows, door locks, and mirrors.
- âś” Interior or exterior lights flickering, staying on, or not working at all.
- âś” The anti-theft or security system light is on, causing a no-crank/no-start condition.
- âś” Key fob is unresponsive or works only intermittently.
- âś” Unexplained battery drain that kills your battery overnight.
- âś” Communication Diagnostic Trouble Codes (DTCs), especially U-codes like U0140, are present.
- âś” Wipers or horn activating randomly.
A Straightforward Guide to Installation
For the confident DIYer, replacing the BCM is a manageable job that can be done with basic hand tools. This guide is for the 2008-2013 Cadillac CTS; locations on other models may vary.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the Module: In the CTS, the BCM is typically located behind the driver’s side lower dashboard panel, to the left of the steering column.
- Access the BCM: Carefully remove the necessary plastic trim panels to gain clear access to the module.
- Disconnect and Remove: Unplug the multiple electrical connectors. Note their orientation. Most have a small locking tab that needs to be depressed. Once disconnected, unbolt the old BCM from its mounting bracket.
- Install the New Module: Seat your new, pre-programmed BCM onto the mounting bracket and secure it. Firmly reconnect all electrical connectors until they click into place.
- Final Steps: Reinstall the trim panels, reconnect the negative battery terminal, and start the vehicle. Test all functions like windows, locks, lights, and the key fob to confirm a successful repair.
Important Notes After Installation
While this module is programmed for your VIN, some vehicle systems may require a ‘handshake’ procedure after installation. Please be aware of the following:
- Airbag System Sync: If the airbag warning light is on after installation, it does not mean the part is faulty. A ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional-grade scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be needed to ensure correct brake light and traction control operation.
- Disclaimer: Always consult a factory service manual for your specific vehicle or a qualified technician if you are unsure about any part of the process.
Guaranteed Fitment for Your GM Vehicle
This BCM is a direct replacement for part number 15872388 and is compatible with a wide range of GM vehicles. Please verify your vehicle is on this list. It replaces 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.
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 1500 VAN 08-12 Body Control (BCM); (center dash)
EXPRESS 2500 VAN 08-12 Body Control (BCM)
EXPRESS 3500 VAN 08-12 Body Control (BCM)
G8 08-09 Body Control (BCM); (center dash)
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
IMPALA 06-12 Body Control (BCM); (LH dash)
IMPALA 13 Body Control (BCM); (LH dash), ID 22820315
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 1500 VAN 08-12 Body Control (BCM); (center dash)
SAVANA 2500 VAN 08-12 Body Control (BCM)
SAVANA 3500 VAN 08-12 Body Control (BCM)
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
Frequently Asked Questions
Do I need to program this 2008-2013 CTS BCM?
No! This is the main benefit of our service. We program the module to your car’s exact VIN before shipping. It arrives ready to be installed, saving you a trip to the dealer and hundreds in programming fees.
What is a core charge? Do I have to send my old part back?
A core charge is a deposit that is returned when you send back your old part. We have a NO CORE CHARGE policy on this BCM, so you can keep your original part with no extra fees or hassle.
My airbag light came on after I installed the module. Is it defective?
No, this is a normal security procedure in many GM vehicles. The new BCM needs to be electronically introduced to the airbag’s computer (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool to turn off the light.
What tools do I need to install this?
For most models, you will only need basic hand tools, such as a socket set and some plastic trim removal tools to avoid scratching your dashboard panels. The most important tool is patience.
How do I provide my VIN number?
After you place your order, simply send us a message with your vehicle’s 17-digit Vehicle Identification Number (VIN). We cannot program and ship your BCM without it.