Restore Your Vehicle’s Electrical Sanity with a Plug-and-Play Solution
Are you chasing electrical gremlins in your Cadillac, Chevrolet Sonic, or Impala? Flickering lights, malfunctioning power windows, a temperamental security system, or a dashboard that lights up with random warnings are classic signs of a failing Body Control Module (BCM). As the central computer for your vehicle’s comfort and convenience features, a faulty BCM can make driving a frustrating experience. Dealerships often quote astronomical prices for a new module plus mandatory programming fees. We offer a reliable, cost-effective alternative: a professionally programmed BCM that’s ready for installation right out of the box.
Our service simplifies the repair process. You send us your original BCM, and we transfer all its critical data—including VIN, mileage, and key programming—to a fully tested replacement unit. This cloning process makes the replacement a true plug-and-play component, eliminating the need for expensive dealership tools or additional programming. This is the most direct way to get your car back to 100% functionality without the hassle.
From the Diagnostic Bay: The Case of the Confused Sonic
A customer brought in a 2014 Chevy Sonic with some of the strangest symptoms I’ve seen. The radio would randomly shut off, the dome light would stay on for hours after the car was locked, and the turn signals worked only when they felt like it. They had already replaced the battery and checked all the fuses. After connecting my scan tool, I saw multiple communication error codes (U-codes) pointing to the BCM. Instead of a complete failure, the module was intermittently losing its mind. We used this exact cloning service to provide a Programmed BCM 13586589. After a 15-minute installation, every single issue was gone. The customer saved hundreds compared to the dealer quote and drove away in a car that behaved like new.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional power windows, locks, and mirrors
- ✔ Interior or exterior lights flickering, staying on, or not working at all
- ✔ Vehicle security system engaging randomly or preventing the car from starting
- ✔ Horn honking unexpectedly or not working when pressed
- ✔ Communication error codes (like U0140) stored in the system
- ✔ Wipers operating on their own or not responding to the switch
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate Your BCM: The module’s location varies by model. For the ATS, it’s on the firewall; for the XTS, it’s in the left front hinge pillar; for the Sonic, it’s in the RH rear quarter panel; and for the Impala, it’s in the LH dash area.
- ✔ Remove the Old Module: Carefully unplug all electrical connectors. They have locking tabs that must be depressed. Once disconnected, unbolt the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, programmed BCM and securely reconnect all electrical connectors. Ensure they click into place.
- ✔ Reconnect the Battery: Reattach the negative battery terminal.
- ✔ Test All Functions: Start the vehicle and test all body-related functions—lights, locks, windows, wipers, etc.—to confirm the repair was successful.
Important Post-Installation Information
While our Programmed BCM 13586589 is designed for plug-and-play installation, some vehicle systems may require a ‘handshake’ with the new module. If your airbag light is on, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” procedure. Similarly, some models may require a Brake Pedal Position Relearn to ensure proper brake light and traction control operation. These are simple procedures for any qualified technician. As always, consulting a factory service manual for your specific vehicle is recommended.
Will This Fit My Vehicle?
This BCM is guaranteed to be compatible with the following vehicles and part numbers. Please verify your original part number is on this list before ordering. This module replaces part numbers 13586589, 13589093, and 13580689.
- 2013 Cadillac ATS (BCM located on firewall)
- 2013 Cadillac XTS (BCM located in left front hinge pillar)
- 2013-2014 Chevrolet Sonic (BCM located in RH rear quarter panel)
- 2014 Chevrolet Impala (VIN 1, 4th digit, New Style; BCM located in LH dash)
Please Note: This is a programming service. After purchase, we will contact you with instructions for shipping your original BCM to us. Once we receive it, we will program the replacement and ship it to you promptly. There is no core charge, and you can keep your original module.
How does the cloning service work?
How does the cloning service work?
After you place your order, we will provide you with instructions to ship your original BCM to our facility. We then use specialized equipment to read the unique data from your module and write it onto a fully tested replacement BCM. We then ship the programmed replacement back to you, ready for installation.
Will I need to have this programmed by a dealer?
No. Because we clone the data from your original unit, this module is 100% plug-and-play. It will not require any additional programming or trips to the dealership, saving you time and money.
Is there a core charge?
No, there is no core charge for this item. We only need your original module to perform the data transfer service. You can keep your old part.
What if my airbag light comes on after installation?
This is a possibility on some models. It means the new BCM needs to be synced with the airbag system (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be performed by any professional mechanic with a capable diagnostic scan tool.
What if I don’t see my exact vehicle listed?
Please ensure your vehicle model and year match the fitment list and that your original BCM’s part number is 13586589, 13589093, or 13580689. If you are unsure, please contact us with your VIN before ordering, and our experts will be happy to verify compatibility.