Are you dealing with baffling electrical issues in your GM vehicle? Flickering lights, power windows with a mind of their own, or a security light that prevents your car from starting? These are classic signs of a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen how a faulty BCM can turn a reliable car into a source of daily frustration. The dealership solution is often a new module followed by a costly programming session. We offer a smarter, more efficient fix: a replacement BCM with a professional cloning service that makes installation a breeze.
This service is designed to be the simplest path back to a fully functional vehicle. You simply send us your original BCM, and we transfer all the critical data—including the VIN, mileage, and security information—to this quality replacement module. When you receive it back, it’s ready to install. No dealer visits, no special programming tools, no headaches. It’s the direct solution for a complex problem.
Common Signs of a Failing BCM
If your vehicle is exhibiting any of these symptoms, a failing BCM is the likely culprit. A scan tool might show communication error codes like U0140, U0155, or other B-series codes.
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not working.
- ✔ The security or anti-theft system light is illuminated, causing a no-start condition.
- ✔ Horn honking unexpectedly or the alarm going off randomly.
- ✔ Wipers activating on their own or not responding to the switch.
- ✔ Inaccurate readings on the instrument cluster.
Case Study: A Tricky Diagnosis
I remember a 2014 Chevy Cruze that came into the shop with a laundry list of bizarre electrical complaints. The customer said the radio would sometimes shut off, the driver’s side window wouldn’t work, and occasionally the turn signals would stop flashing. They had already replaced the battery and checked fuses. After hooking up my scanner, I saw multiple communication loss codes pointing back to the BCM. Instead of a new module and a full system reprogram, we used our cloning service. We transferred the data from his old, failing BCM to our replacement unit. The customer installed it himself in under 30 minutes in his driveway. All the electrical gremlins were gone, and he saved hundreds compared to the dealership quote.
A Straightforward Guide to Installation
Replacing your BCM is a manageable job for a DIYer. The location can vary, so confirming it for your specific model is key. The most important step is ensuring the battery is disconnected to prevent electrical shorts.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system to fully discharge.
- Locate the BCM: On a 2013 Regal, the BCM is typically located on the left (driver’s) side of the dash. For other compatible vehicles, it may be in the LH kick panel, under the center console, or even in the engine compartment. Consult a vehicle-specific guide if you’re unsure.
- Remove the Old Module: Carefully disconnect the electrical connectors. Most have a locking tab that needs to be pressed or lifted. Then, unbolt the module from its mounting bracket.
- Install the New Module: Seat the replacement BCM onto the mounting bracket and secure it. Reconnect the electrical connectors, ensuring they click firmly into place.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Final Checks: Start the vehicle and test all the functions controlled by the BCM: lights, locks, windows, wipers, etc. Note the post-installation procedures below, as some vehicles may require them.
Important Post-Installation Steps
Because this is a cloned module, most vehicles will not require any further steps. However, in some cases, the following relearn procedures may be necessary. These typically require a professional-grade diagnostic scan tool.
- Airbag System Sync: If your airbag warning light is on after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a recalibration of the brake pedal position sensor to ensure correct brake light and traction control operation.
Disclaimer: Always consult a factory service manual or a qualified technician for procedures specific to your vehicle.
Verified Vehicle Compatibility
This module is a direct fit for the following vehicles and part numbers. Please match your part number to ensure compatibility. Our programming service makes it compatible with your vehicle’s specific options.
Compatible Part Numbers: 13584695, 13586273, 13580697, 13588447, 13589197, 13589324, 13589325
- ✔ Buick Encore: 2013-2014
- ✔ Buick Regal: 2013
- ✔ Buick Verano: 2013-2017
- ✔ Cadillac SRX: 2013
- ✔ Chevrolet Cruze: 2013-2016 (incl. Limited)
- ✔ Chevrolet Equinox: 2013-2017
- ✔ Chevrolet Malibu: 2013
- ✔ Chevrolet Orlando: 2013-2014
- ✔ Chevrolet Spark: 2014-2015 (Gasoline)
- ✔ Chevrolet Trax: 2013-2014
- ✔ Chevrolet Volt: 2013
- ✔ GMC Terrain: 2013-2017
Frequently Asked Questions About Our BCM Service
Frequently Asked Questions
How does the mail-in programming service work?
After you place your order, we will contact you with instructions to ship your original BCM to us. Once we receive it, our technicians will transfer the data to the replacement module and ship it back to you, typically within 1-2 business days.
Will this fix my specific problem?
This module corrects faults originating within the BCM itself. If you’re experiencing multiple, unrelated electrical issues like those listed in our symptoms section, a faulty BCM is the most common cause. Proper diagnosis is always recommended.
Is this truly plug-and-play?
Yes. Because we clone your vehicle’s original data, the replacement module is recognized by the car’s other computers. This eliminates the need for dealer programming, key relearns, or other complex setup procedures.
Do I need to send my keys?
No, you do not need to send your keys. All the necessary security information is stored within your original BCM, and that is what we transfer to the new unit.
What if I have an airbag light after installation?
This can happen on some models. It simply means the BCM and the airbag module (SDM) need to be re-synced. A procedure called “Setup SDM Primary Key in BCM” can be performed with a professional scan tool to clear the light.
Is there a core charge?
No, there is no core charge for this item. You are welcome to keep your original module after our programming service is complete.