Tired of Unpredictable Electrical Problems in Your GM Vehicle?
As a technician with over two decades of experience, I’ve seen firsthand how a failing Body Control Module (BCM) can turn a reliable vehicle into a source of daily frustration. If your 2012 Chevy Equinox or another compatible GM model is experiencing bizarre issues like wipers that won’t turn off, power locks with a mind of their own, or a security light that prevents your car from starting, the BCM is the likely culprit. This isn’t just an inconvenience; it can be a significant safety issue. The BCM is the central command center for your vehicle’s body electronics, and when it fails, chaos ensues.
We offer a straightforward and reliable solution. Instead of paying for expensive dealership diagnostics and programming, you can get a fully functional, programmed 2012 Equinox BCM ready for installation. Our service is designed to be simple: you purchase this module, ship your original BCM to us, and we handle the rest. We will meticulously transfer all the critical data from your original module to this replacement unit. This cloning process ensures that the replacement BCM is a perfect match for your vehicle’s specific configuration, including the VIN and security information, making the installation process as smooth as possible.
From the Diagnostic Bay
I remember a 2012 GMC Terrain that came into the shop with a laundry list of complaints. The owner was frustrated because the radio would randomly shut off, the dome light would stay on, and occasionally the car wouldn’t start, showing a ‘Service Theft Deterrent System’ message. Another shop had already replaced the battery and alternator to no avail. A quick scan showed a dozen communication codes (U-codes), all pointing to a network issue. By isolating modules, we traced the fault to the BCM. It was intermittently dropping off the data bus, causing system-wide confusion. A cloned BCM like this one solved every single issue in one go, saving the customer hundreds compared to the dealership’s quote.
A Straightforward Guide to Installation
- ✔ Safety First: Before you begin, disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the BCM: On most models like the 2012 Equinox and Terrain, the BCM is located on the left (driver’s) side of the dash, often behind a kick panel or lower dash cover. Consult your service manual for the exact location on your specific vehicle.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be pressed to be released. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New BCM: Mount your newly programmed BCM in the same location and reconnect all the electrical connectors. Ensure they click securely into place.
- ✔ Reconnect Battery: Reattach the negative battery terminal.
- ✔ Perform Final Checks: Start the vehicle and test all body functions—lights, wipers, windows, locks, and radio. Check the instrument cluster for any new warning lights. Refer to the post-installation procedures below if needed.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors behaving unpredictably.
- ✔ The security or anti-theft light is illuminated, causing a no-start condition.
- ✔ Wipers or radio turning on and off by themselves.
- ✔ False warning messages on the driver information center.
- ✔ Diagnostic trouble codes (DTCs) related to lost communication, such as U0140, U0155, or U0164.
Important Post-Installation Information
While our cloning service makes this a near plug-and-play repair, some vehicle systems may require recalibration after the new 2012 Equinox BCM is installed. This is normal and depends on your specific vehicle’s configuration.
- Airbag System Sync: If the airbag warning light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the airbag system with the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure brake lights and stability control function correctly.
Disclaimer: We always recommend consulting a factory service manual or a qualified professional if you are unsure about any step of the process. No core charge is required; you can keep your original module.
Verified Vehicle Compatibility
This BCM, programmed with your vehicle’s data, is a direct replacement for part numbers 13580696, 123589093, 13588446, 13584692, and 13583542. It fits the following models:
- 2012 Buick LaCrosse (Body Control (BCM); (LH kick panel), ID 13580696)
- 2013 Buick LaCrosse (Body Control (BCM); (LH kick panel))
- 2012 Buick Regal (Body Control (BCM); (LH dash))
- 2012 Buick Verano (Body Control (BCM); (below center of dash))
- 2012 Cadillac SRX (Body Control (BCM); (LH dash), ID 13580696)
- 2012-2013 Chevrolet Camaro (Body Control (BCM); (RH dash))
- 2014 Chevrolet Camaro (Body Control (BCM); (RH dash), Cpe)
- 2012 Chevrolet Equinox (Body Control (BCM); (LH side dash), body control)
- 2013 Chevrolet Spark (Body Control (BCM); (left lower a-pillar))
- 2012 Chevrolet Volt (Body Control (BCM); (RH engine compartment))
- 2012 GMC Terrain (Body Control (BCM); (LH side dash), body control)
Frequently Asked Questions About Our BCM Service
Frequently Asked Questions
How does the mail-in cloning service work?
It’s simple. After you place your order, we will contact you with instructions for shipping your original BCM to our facility. Once we receive it, our technicians will transfer all the necessary programming and security data to the replacement module. We then ship the ready-to-install BCM back to you, typically within 1-2 business days.
Will this fix my car’s specific electrical problems?
If your vehicle’s symptoms match the common signs of BCM failure (erratic lights, locks, wipers, no-start/security issues) and your mechanic has diagnosed the BCM, this service is the most effective solution. It restores the central command of your car’s electronics to factory-correct operation.
Do I need to do any programming myself?
No. The main purpose of our service is to handle all the complex programming for you. The module you receive will be pre-programmed with your vehicle’s data, eliminating the need for expensive tools or a trip to the dealership for programming.
What if an airbag light comes on after I install it?
This is a possibility on some models. The airbag module (SDM) may need to be electronically ‘re-introduced’ to the new BCM. This is a simple procedure called ‘Setup SDM Primary Key in BCM’ that can be completed by any professional shop with a compatible bi-directional scan tool.
Is there a core charge or do I need to return my old BCM?
You only need to send us your original BCM for the initial data cloning. There is no core charge, and you are welcome to keep your original module after the service is complete.