Tired of Unpredictable Electrical Issues in Your GM Vehicle?
As a technician with over two decades of experience, I’ve seen it all. A customer comes in with a car that seems to have a mind of its own—the radio cuts out, the power windows won’t work, the interior lights flicker, or worse, the car won’t start. These aren’t random glitches; they’re classic symptoms of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s electronics, and when it starts to go, it can cause a cascade of frustrating and seemingly unrelated problems.
A Technician’s Notebook: The Ghost in the Machine
I remember a 2013 Chevy Cruze that came into my bay with a complaint of intermittent no-start and a battery that would be dead every morning. The owner had already replaced the battery and alternator. After running diagnostics, I found no parasitic draw, but I noticed communication errors with the BCM (U-codes). The module wasn’t properly shutting down all the vehicle’s systems when the key was off, leading to a slow drain. This is a textbook failure I’ve diagnosed hundreds of times. Replacing the BCM isn’t just about swapping a part; it’s about restoring the vehicle’s core stability. This mail-in programming service is the exact solution I’d recommend to a customer to avoid excessive dealership costs.
The Simple, Cost-Effective Solution: A Pre-Programmed BCM
Forget expensive dealership visits and towing fees. Our professional mail-in cloning service is the most efficient way to solve your BCM problems. We take the vital, vehicle-specific data from your original BCM and flash it directly onto this quality replacement unit. When you receive it back, it’s a true plug-and-play installation. All your vehicle’s original settings, key programming, and security information are retained. This is the definitive fix for your 2013 Cruze BCM issues, getting you back on the road with confidence.
A Straightforward Guide to Your BCM Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate Your BCM: In most compatible vehicles like the Cruze, the BCM is located in the driver’s side footwell, behind the kick panel. Consult your vehicle’s service manual for the exact location.
- ✔ Remove the Original BCM: Carefully disconnect the electrical connectors. They have locking tabs that need to be pressed to release. Once disconnected, unbolt the module from its mounting bracket.
- ✔ Ship Us Your Module: After purchase, we will contact you with simple instructions for shipping your original BCM to our facility. Please ensure your contact information is correct at checkout.
- ✔ Install the Replacement: Once you receive the programmed module back from us, simply bolt it in place, reconnect the electrical connectors, and reconnect your battery. The installation is the reverse of removal.
Common Signs of a Failing GM BCM
- ✔ Erratic or non-functional power windows, door locks, and interior/exterior lights.
- ✔ Warning lights on the dash, such as “Service Stabilitrak,” “Service Airbag,” or a flashing security light.
- ✔ The engine cranks but refuses to start, or experiences intermittent starting problems.
- ✔ Communication-related Diagnostic Trouble Codes (DTCs), often in the U-series (e.g., U0100, U0140).
- ✔ The radio or infotainment system behaves unpredictably or doesn’t turn on.
Important Post-Installation Information
While our programming makes this a plug-and-play part, some vehicle systems may require a final handshake after installation. Please note the following:
- Airbag System Sync: If the airbag warning light is illuminated 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 the brake lights and traction control system function correctly.
- No Core Charge: You are not required to return your original module to us after the service is complete. There is no core charge or deposit.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Verified Vehicle Compatibility List
This BCM, part number 13578420, is a direct replacement for several part numbers and fits a range of GM vehicles. Please match your original part number or vehicle application from the list below:
- Interchangeable Part Numbers: 13577850, 13505326, 13500384, 13574844, 13504004, 13504494, 13578420
- Compatible Models:
- 2013 Chevrolet Cruze (with option ATH, located in LH kick panel)
- 2011 Chevrolet Cruze (located in LH kick panel)
- 2011 Buick Regal (w/o option AUA, located in LH dash)
- 2010 Cadillac SRX (located in LH dash)
- 2010 GMC Terrain / Chevrolet Equinox (body control, located in LH side dash)
- 2011 GMC Terrain (body control, located in LH side dash, check ID)
Frequently Asked Questions
What exactly is a “cloning” or “programming” service?
This service involves transferring the unique software and security data from your original, failing BCM to this replacement unit. This makes the new part recognize your vehicle’s keys and options, allowing it to work immediately upon installation without a trip to the dealer.
Do I need any special tools to install this 2013 Cruze BCM?
For the physical installation, you’ll only need basic hand tools like a socket set and a trim removal tool to access the module. However, as noted, a professional diagnostic tool may be required for post-installation procedures like the airbag system sync if the warning light appears.
How long does the programming service take?
Once we receive your original BCM, our technicians typically complete the programming and ship your new module back out within 1-2 business days. We will provide you with a return tracking number as soon as it ships.
Is this a guaranteed fix for my car’s electrical problems?
If your vehicle is exhibiting the classic symptoms of BCM failure and a professional diagnosis has pointed to the module, this is the correct and reliable solution. It restores the central command center for your car’s body electronics.
What happens if I don’t see my exact part number listed?
The part numbers listed (13577850, 13505326, etc.) are all interchangeable with 13578420. If your module has one of these numbers, this part will work for you. If you are unsure, please contact us with your VIN before ordering.