Is Your Vehicle Experiencing Strange Electrical Problems?
The Body Control Module, or BCM, is the central command center for your vehicle’s electronic accessories. It manages everything from your power windows and locks to your interior lights and security system. When the BCM starts to fail, it can cause a wide range of confusing and frustrating issues that seem unrelated. If you’re dealing with these problems in your Cadillac, a faulty BCM is a likely culprit, and this pre-programmed 2010 STS Body Control Module is the definitive solution.
We take the guesswork and high dealership costs out of the equation. Simply provide us with your vehicle’s VIN during checkout, and we will program this module with the latest GM software specific to your car. This ensures a seamless, plug-and-play installation process, getting you back on the road quickly and affordably.
We recently had a 2010 Cadillac STS in the shop where the radio would randomly shut off and the driver’s side power window was completely unresponsive. The owner had already replaced the radio and the window switch to no avail. A comprehensive diagnostic scan revealed communication faults pointing directly to an internal failure in the BCM. Replacing the original unit with a VIN-programmed module like this one resolved both issues instantly. It’s often the single point of failure behind these maddening electrical gremlins.
Common Symptoms of a Failing BCM
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ Interior dome lights, headlights, or taillights behaving erratically.
- ✔ The anti-theft or security system engaging randomly, preventing the car from starting.
- ✔ Instrument cluster gauges dropping to zero or giving false readings.
- ✔ HVAC (climate control) system becoming unresponsive.
- ✔ Warning messages like “Service Theft System” or other alerts on the dash.
- ✔ Complete loss of communication, resulting in a no-start condition.
Installation and Post-Install Notes
Replacing the 2010 STS Body Control Module is a straightforward process. It is designed for a direct fit, meaning no modifications are necessary. However, due to the complexity of modern vehicle systems, a couple of additional steps, known as relearn procedures, may be required after installation. These procedures sync the new module with other systems in your vehicle.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” procedure. This is only necessary if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be needed to ensure proper brake light and traction control functionality.
Always consult a factory service manual or a qualified technician for vehicle-specific guidance.
Guaranteed Compatibility and No Core Charge
This module is a direct replacement for a wide range of GM part numbers, including 25892622, 15819552, 20815898, 22860591, and many more. Check the extensive fitment list to confirm compatibility with your vehicle. Best of all, there is no core charge. You can keep your old part, saving you the time and hassle of a return shipment.
Frequently Asked Questions
What exactly does the Body Control Module do?
The BCM acts as the main computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, the security system, and the climate control fans.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings for your specific vehicle’s options and features. This makes the installation plug-and-play and avoids a costly trip to the dealership for programming.
Is this part difficult to install?
For someone with moderate DIY automotive experience, the physical installation is typically straightforward as it’s a direct-fit part. The main challenge can be accessing the module’s location (often under the dash). Some post-installation electronic relearn procedures may be necessary, as noted in the description.
Do I need to send my old BCM back?
No. This product comes with no core charge, so you are not required to return your original module.
What happens if my airbag light is on after installation?
If the airbag light comes on, it means the new BCM needs to be electronically synced with the airbag system’s computer (SDM). This requires a professional-grade scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure.
Will this BCM fix my check engine light?
No. The BCM controls body electronics, not engine functions. The check engine light is related to the Engine Control Module (ECM) or Powertrain Control Module (PCM).