Restore Full Functionality to Your GM Vehicle with a Pre-Programmed BCM
As a technician with over two decades of experience under the hood, I’ve seen countless vehicles plagued by bizarre electrical gremlins that stump even seasoned mechanics. More often than not, the culprit is a failing Body Control Module (BCM). If your 2010 Equinox is experiencing strange issues like erratic power windows, flickering lights, or a security system that won’t cooperate, you’re in the right place. This isn’t just a part; it’s a permanent fix that gets you back on the road without the astronomical dealership costs and programming headaches.
This listing is for a replacement BCM, part number 13578420, that comes fully programmed with your vehicle’s specific data. How do we do it? We use a simple and reliable cloning process. After your purchase, you’ll ship your original BCM to our facility. Our expert technicians will then extract the unique data—including key information and vehicle-specific options—and flash it directly onto this replacement unit. The result is a true plug-and-play module. Once you receive it back, you simply install it, and your vehicle will recognize it as the original. This bypasses the need for expensive dealer-only programming tools.
Case Study: A Tricky Diagnosis
A customer brought in a 2010 Chevy Equinox with a frustrating complaint: the radio would turn on by itself, the door locks would cycle randomly, and the dome light would stay on, draining the battery overnight. They had already replaced the battery twice. A quick scan showed a slew of communication errors (U-codes) pointing to the BCM. Instead of quoting them over a thousand dollars for a new module and programming at the dealer, we performed a cloning service just like this one. The total repair time was a fraction of the dealer’s estimate, and the electrical chaos was completely resolved. This is the kind of effective, affordable solution we provide.
Common Signs of a Failing BCM
A BCM is the central nervous system for your vehicle’s body electronics. When it fails, it can cause a wide range of confusing symptoms. If you’re noticing any of the following, your BCM is the likely cause:
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The anti-theft or security system engaging randomly, preventing the car from starting.
- ✔ Dashboard warning lights (like ABS, Airbag, or Traction Control) illuminating for no reason.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Communication error codes, such as U0140 (Lost Communication With Body Control Module).
Your Step-by-Step BCM Replacement Guide
Installing your pre-programmed 2010 Equinox BCM is a straightforward process that a confident DIYer can handle. The key is our cloning service, which eliminates the need for on-vehicle programming.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On the 2010 Equinox and GMC Terrain, the BCM is typically found on the left-hand (driver’s) side of the dash, often behind the lower dash panel or near the kick panel.
- Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Seat the replacement BCM into the mounting bracket and secure it. Reconnect all electrical connectors, ensuring they click firmly into place.
- Reconnect Power: Reattach the negative battery terminal and tighten it securely.
- Verify Operation: Start the vehicle and test all body functions—windows, locks, lights, wipers, and radio—to ensure everything is working correctly.
Important Post-Installation Notes
While our cloning service makes this a plug-and-play repair, some vehicle systems may require a ‘handshake’ with the new BCM. Please be aware of the following potential procedures:
- Airbag System Sync: If your airbag warning light is on after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure may be needed. This requires a professional-grade scan tool to sync the modules and clear the light.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure the brake lights and traction control system function as intended.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a certified technician if you are unsure about any step.
Verified Vehicle Compatibility
This BCM is a direct replacement for part number 13578420 and is interchangeable with part numbers 13577850, 13505326, 13500384, 13574844, 13504004, and 13504494. It is guaranteed to fit the following models:
- 2010 Chevrolet Equinox – Body Control (BCM); (LH side dash), body control
- 2010 GMC Terrain – Body Control (BCM); (LH side dash), body control
- 2011 GMC Terrain – Body Control (BCM); (LH side dash), ID 13500384, 13504004, 13504494, 13505326, 13574844, 13578420
- 2010 Cadillac SRX – Body Control (BCM); (LH dash)
- 2011 Buick Regal – Body Control (BCM); (LH dash), w/o opt AUA
- 2011 & 2013 Chevrolet Cruze – Body Control (BCM); (LH kick panel)
Frequently Asked Questions
How does the cloning service work?
After you place your order, we will contact you with instructions to ship your original BCM to us. Once we receive it, we transfer its data to the replacement unit and ship it back to you, usually within 1-2 business days. This makes the replacement module ready for installation right out of the box.
Do I need to send my original part? Is there a core charge?
Yes, you must send us your original BCM for the cloning process. However, there is absolutely no core charge, and we will return your original module along with the newly programmed replacement.
Is this a guaranteed fix for my vehicle’s electrical problems?
If your vehicle’s symptoms match those of a failed BCM and the module has been properly diagnosed as the fault, this service provides a reliable and permanent solution. It restores the original factory functionality governed by the BCM.
What tools are required for the installation?
Basic hand tools are typically all that’s needed, such as a socket set and a trim removal tool to access the BCM behind the dash panel. No special programming computers are required thanks to our cloning service.
What if the airbag light comes on after I install it?
This is a known possibility. The airbag module (SDM) may need to be electronically re-synced with the new BCM. This is a simple procedure called ‘Setup SDM Primary Key in BCM’ that can be performed by any competent repair shop with a professional diagnostic tool.