Restore Your Vehicle’s Electrical System with a Plug-and-Play BCM
Are you battling frustrating electrical issues in your Chevy Cruze or other GM vehicle? Flickering lights, unresponsive power windows, or a security system that has a mind of its own are classic signs of a failing Body Control Module (BCM). Instead of facing a costly trip to the dealership for programming, we offer a simple, reliable solution. This listing is for a replacement BCM, part number 13578420, that arrives at your doorstep pre-programmed and ready for installation.
Our professional cloning service is the key. You simply send us your vehicle’s original BCM. Once we receive it, our technicians transfer all the critical vehicle-specific data to this replacement unit. This process ensures that your car’s identity, security information, and options are perfectly mirrored. The result is a true plug-and-play module that restores full functionality without any additional programming required on your end. It’s the most efficient way to get your car back to normal.
From the Diagnostic Bay: The Case of the Haunted Cruze
I remember a 2011 Chevy Cruze that came into my shop with a laundry list of bizarre electrical complaints. The owner said the radio would turn on by itself, the door locks would cycle while driving, and the turn signals worked only when they wanted to. A basic scan showed a dozen communication codes (U-codes) pointing to a network failure. After checking the main power and ground connections to the BCM, it was clear the module itself was the culprit. These BCMs act as the central hub for all body electronics, and when they fail internally, they create chaos. A cloned BCM like this one solved every single issue in under an hour of shop time, saving the customer hundreds compared to the dealer quote.
Common Signs of a Failing BCM
If you’re experiencing any of the following, a faulty BCM is the likely cause. This 2011 Cruze BCM is the direct solution for these problems.
- âś” Erratic or non-functional power windows, door locks, and interior/exterior lights.
- âś” The security system light stays on, or the vehicle won’t start due to an anti-theft issue.
- âś” Instrument cluster warning lights appear randomly.
- âś” Communication failure codes (like U0140) are stored in other modules.
- âś” Wipers or radio operate intermittently or not at all.
A Straightforward Guide to Installation
Installing your pre-programmed BCM is a simple process. Our cloning service handles all the complex software work, so you can focus on the physical swap.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On the 2011-2013 Cruze, the BCM is typically found behind the driver’s side kick panel, near the fuse box. For other models, its location is usually in the driver’s or passenger’s side dash area.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be pressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely reconnect all the electrical connectors, ensuring they click into place.
- Reconnect Power: Re-attach the negative battery terminal.
- Test Functions: Start the vehicle and test all body functions—lights, locks, windows, radio, etc.—to confirm the repair.
Important Post-Installation Information
In some cases, your vehicle may require a simple relearn procedure after installation. This is standard for many modern vehicles. Please note the following:
- Airbag System Sync: If your 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 new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure proper brake light and traction control operation.
Always consult your vehicle’s factory service manual or a qualified technician for model-specific guidance.
Verified Vehicle Compatibility
This module is a direct fit for units with part numbers 13578420, 13577850, 13505326, 13500384, 13574844, 13504004, or 13504494. It is confirmed to fit the following vehicles:
- 2011 Chevrolet Cruze – Body Control (BCM); (LH kick panel)
- 2013 Chevrolet Cruze – Body Control (BCM); (LH kick panel), w/opt ATH
- 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), body control, ID 13500384, 13504004, 13504494, 13505326, 13574844, 13578420
- 2011 Buick Regal – Body Control (BCM); (LH dash), w/o opt AUA
- 2010 Cadillac SRX – Body Control (BCM); (LH dash)
Frequently Asked Questions
How does the programming service work?
After you complete your purchase, we will provide you with instructions and a shipping address. You mail your original BCM to us. We then clone its data onto the replacement unit and ship the new, programmed module back to you, typically within 1-2 business days of receiving your original.
Do I need to send my original BCM? Why?
Yes, sending your original module is required. This is how we extract the vehicle-specific security and configuration data to make the replacement part a true plug-and-play solution, saving you from expensive dealer programming.
Is there a core charge?
No, there is absolutely no core charge for this part. You can keep your original module after we have completed the cloning service.
Will this fix my specific problem?
This 2011 Cruze BCM is designed to resolve issues directly caused by a failing Body Control Module, such as problems with lights, locks, windows, and security systems. Proper vehicle diagnosis is recommended to confirm the BCM is the source of your issue before purchasing.
What if my original part number is different?
This module is a direct replacement for several part numbers, including 13577850, 13505326, 13500384, and more, as listed in the compatibility section. As long as your part number is on our list, this module will work for your vehicle.