Is Your Cadillac STS Experiencing Strange Electrical Issues?
If your vehicle’s power windows, door locks, interior lights, or security system are acting erratically, a failing Body Control Module (BCM) is the most likely culprit. The BCM is the central computer for your car’s body electronics, and when it fails, it can cause a wide range of frustrating and confusing problems. Get your vehicle back to full functionality with this direct-fit replacement Body Control Module, pre-programmed specifically for your 2010 Cadillac STS.
From the Diagnostic Bay
We had a 2010 Cadillac STS come in with a classic case of BCM failure. The customer reported the radio would turn on and off by itself, the dome lights wouldn’t work, and the key fob was intermittent. A scan tool showed multiple communication errors with various modules. Instead of a complex and costly diagnostic chase, we identified the BCM as the root cause. Installing a VIN-programmed module like this one resolved all the issues in a single repair, saving the customer significant time and labor costs compared to a dealership visit.
Common Failure Symptoms
- ✔ Intermittent or non-working power windows and locks.
- ✔ Erratic behavior from the radio or instrument cluster gauges.
- ✔ Interior or exterior lights not functioning correctly.
- ✔ Vehicle security system faults or false alarms.
- ✔ Key fob not being recognized by the vehicle.
- ✔ “Service Electrical System” or similar warnings on the dash.
Why Choose Our 2010 STS Body Control Module?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and extra expense out of the repair. Simply provide us with your vehicle’s VIN during checkout, and our technicians will program the module with the latest GM software updates specific to your car. This ensures perfect compatibility and function right out of the box, eliminating the need for expensive programming at a dealership. This module is a direct replacement for a wide range of GM part numbers, including 15819552, 25892622, and 20815898.
Installation and Post-Install Notes
While this module is designed for a straightforward installation, some vehicles may require additional steps after the part is fitted. If your airbag warning light illuminates after installation, a simple “Setup SDM Primary Key in BCM” procedure may be needed using a professional scan tool. Additionally, some models may require a Brake Pedal Position Relearn to ensure proper brake light and traction control operation. As always, consulting a factory service manual or a qualified technician is recommended. Best of all, there is no core charge, so you can keep your original module.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the central computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, security system, and the instrument cluster.
Is this BCM really plug-and-play?
Yes, because we program it to your vehicle’s specific VIN before shipping, it is designed to be a plug-and-play installation. This eliminates the need for a trip to the dealer for programming. Some models may require minor relearn procedures as noted in the description.
How do I provide my VIN for programming?
After you complete your purchase, we will contact you for your vehicle’s 17-digit VIN. You can also add it as a note during the checkout process. We cannot ship the module until we have programmed it.
What if my airbag light is on after installation?
This is a known possibility. It simply means the new BCM needs to be synced with the airbag system’s Sensing and Diagnostic Module (SDM). A technician with a capable scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Do I need to send my old part back?
No. This product comes with no core charge. You can keep or dispose of your original BCM without any additional fees.