Is Your Cadillac CTS Experiencing Bizarre Electrical Problems?
If your 2008-2013 Cadillac CTS is suffering from strange and unpredictable electrical issues, a failing Body Control Module (BCM) is the most likely culprit. The BCM is the central command center for your vehicle’s body electronics, managing everything from your power windows and locks to the interior lights and security system. When it starts to fail, it can create a host of frustrating problems that can be difficult to diagnose.
We had a 2011 CTS in the shop that was driving the owner crazy. The radio would randomly shut off, the dome light would flicker while driving, and occasionally the key fob wouldn’t work. They had already replaced the battery and checked all the fuses. After connecting our scanner, we saw multiple communication loss codes pointing to the BCM. Installing a pre-programmed BCM like this one resolved all the issues in under an hour. The customer was thrilled to have their luxury car feel like a luxury car again.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Erratic behavior from the radio or climate control system.
- ✔ Dashboard warning lights turning on and off without reason.
- ✔ Vehicle security system faults or alarm sounding unexpectedly.
- ✔ Interior or exterior lights not functioning correctly.
- ✔ Key fobs failing to lock or unlock the doors.
The Direct-Fit, Programmed Solution
Don’t let a faulty BCM ruin your driving experience. This is a direct-fit replacement for your original module, solving these common issues and restoring full functionality to your vehicle. The best part? We handle the programming for you. Simply provide your vehicle’s VIN during checkout, and we will flash this module with the latest GM software specific to your car. This saves you a costly trip to the dealership and eliminates the need for expensive scan tools for programming. This is the most efficient way to get your car back on the road and working correctly.
Post-Installation Procedures
While this 2008-2013 CTS Body Control Module is designed for a straightforward installation, some vehicles may require simple relearn procedures after the new part is connected. These do not require the original programming tool.
- Airbag System Sync: In some cases, the airbag (SRS) warning light may illuminate after installation. This indicates a sync is needed between the new BCM and the airbag system’s computer. A professional scan tool is required to perform the “Setup SDM Primary Key in BCM” procedure to clear the light.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control operation, a brake pedal position sensor relearn might be necessary. This procedure can often be done with a capable bidirectional scan tool.
Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
Guaranteed Fitment for Multiple GM Models
This BCM, identified by part number 15921352, is also a direct replacement for a wide range of other GM part numbers and fits many vehicles beyond the Cadillac CTS. Please verify your original part number against 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
Frequently Asked Questions
Do I need to have this BCM programmed by a dealer?
No. We program the module to your vehicle’s specific VIN before shipping it to you. It arrives ready for installation, saving you time and money.
How do I provide my VIN?
After you complete your purchase, you will be prompted to provide your VIN. You can also add it as a note to your order during checkout. We cannot ship the part without it.
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer that manages and controls your vehicle’s electronic accessories, such as power windows, locks, lights, wipers, and the security system.
Is this a simple plug-and-play installation?
For most vehicles, it is. You disconnect the old BCM and connect the new one. However, as noted above, some vehicles may require additional relearn procedures for the airbag or brake systems.
Will this fix my specific electrical problem?
This part is the solution for issues directly caused by a failing BCM. If you are experiencing any of the symptoms listed, there is a very high probability that replacing your 2008-2013 CTS Body Control Module will resolve the problem.
Is there a core charge for this part?
No, there is no core charge. You can keep your original module.