Are you dealing with baffling electrical problems in your Cadillac, Chevrolet, or Buick? Issues like flickering lights, malfunctioning power windows and locks, or a vehicle that refuses to start can often be traced back to a single component: the Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen how a failing BCM can turn a reliable car into a source of daily frustration. This isn’t just an inconvenience; it’s a critical failure that compromises your vehicle’s core functions.
Instead of facing a costly trip to the dealership for diagnostics and programming, we offer a streamlined, reliable solution. This listing is for a replacement BCM that comes pre-programmed with your vehicle’s specific data. Our professional cloning service transfers all the essential information—including VIN, key data, and security settings—from your original module to this replacement unit. The result is a true plug-and-play component, eliminating the need for expensive factory tools or additional programming fees.
Common Signs of a Failing Body Control Module
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, etc.).
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system acting up, causing alarm issues or no-start conditions.
- ✔ The horn honking unexpectedly or not working when needed.
- ✔ Inaccurate or dead gauges on the instrument cluster.
- ✔ Warning lights on the dash, such as for the airbag or traction control system.
- ✔ Communication error codes (U-codes) when scanned with a diagnostic tool.
A Technician’s Notebook: The BCM Cloning Advantage
I remember a 2013 Cadillac ATS that came into the shop with a classic case of BCM failure. The owner was frustrated because the power locks would cycle randomly, and the radio would shut off without warning. He’d been quoted over a thousand dollars at the dealership for a new BCM and the required programming. By using our cloning service, we were able to provide him with a ready-to-install module. He simply mailed us his old BCM, we transferred the data, and sent the replacement back. The entire physical swap took him less than 30 minutes, resolving all the electrical gremlins and saving him hundreds of dollars. This is the power of a properly prepared module.
A Straightforward Guide to Your BCM Swap
Our service makes this repair accessible for both DIY enthusiasts and professional shops. The process is simple:
- Place Your Order: After you purchase, we will contact you with detailed instructions and a shipping address. Please ensure your contact information is up to date.
- Ship Your Original BCM: Carefully remove your original BCM and ship it to us.
- We Handle the Programming: Upon receipt, our technicians will professionally clone all necessary data from your original module to the replacement unit.
- Install Your New BCM: We ship the plug-and-play replacement BCM back to you. Simply install it, reconnect your battery, and you’re ready to go. No core charge means you can keep your original module.
Important Post-Installation Information
In some cases, minor system recalibrations may be needed after installation. This is normal as the vehicle’s systems re-sync. Potential procedures include:
- Airbag System Sync: If the airbag light is illuminated, a “Setup SDM Primary Key in BCM” procedure must be performed with a professional scan tool.
- Brake Pedal Position Relearn: This may be required to ensure correct brake light operation and traction control functionality.
Disclaimer: Specific procedures can vary. Always consult a factory service manual or a qualified technician for guidance.
Verified Vehicle Compatibility
This module is a direct fit for the following vehicles and part numbers. Please verify your part number before ordering.
Compatible Part Numbers: 13586589, 13589093, 13580689
- Cadillac ATS 2013: Body Control (BCM); located on the firewall.
- Cadillac XTS 2013: Body Control (BCM); located on the left front hinge pillar.
- Chevrolet Sonic 2013-2014: Body Control (BCM); located in the RH rear quarter panel.
- Chevrolet Impala 2014: Body Control (BCM); for VIN 1 (4th digit, New Style), located in the LH dash.
Frequently Asked Questions
How does the cloning service work?
You ship your original BCM to us. We use specialized equipment to read the unique vehicle data (like VIN and security keys) and write it onto the replacement module. This makes the new module an exact electronic match for your car, eliminating the need for dealership programming.
How long does the programming and shipping process take?
Once we receive your original module, we typically complete the programming service and ship your replacement unit within 1-2 business days. We will send you tracking information as soon as it’s on its way back to you.
Is this 2013 ATS BCM difficult to install?
The physical installation is generally straightforward for someone with basic mechanical skills. The location varies by model (e.g., on the firewall in the ATS). The main benefit of our service is that the electronic part—the programming—is already done for you.
Do I need to send my keys with the BCM?
No, you do not need to send us your keys. All the necessary key and security data is stored within your original BCM, which is all we need to perform the cloning service.
What if an airbag light comes on after installation?
This can happen occasionally. It requires a simple resynchronization procedure called ‘Setup SDM Primary Key in BCM’, which can be performed by any professional shop with a compatible diagnostic tool. It ensures the new BCM and the airbag system are communicating correctly.