Restore Your Vehicle’s Electronics with a Hassle-Free BCM Solution
Are you battling frustrating electrical gremlins in your car? Flickering lights, unresponsive power windows, or a security system that acts up on its own are classic signs of a failing Body Control Module (BCM). The BCM is the central command for your vehicle’s comfort and convenience features, and when it fails, it can make driving a nightmare. Dealerships often charge a fortune for a new module plus hours of labor for programming. We offer a smarter, more affordable path forward.
This is a fully tested replacement BCM that comes pre-programmed with your vehicle’s specific data. Our service is simple: after you place your order, we’ll provide instructions for you to ship your original BCM to our facility. Our expert technicians will then perform a full data transfer, or ‘cloning,’ from your old module to this replacement unit. This process copies all the essential information, including key programming and vehicle options, making the new module a true plug-and-play solution. We then ship the programmed module back to you, ready for installation.
Common Signs of a Failing BCM
- ✔ Unpredictable power door lock or window operation.
- ✔ Interior or exterior lights staying on or not working at all.
- ✔ The security system or horn activating randomly.
- ✔ A no-start condition where the starter doesn’t engage.
- ✔ Erroneous warning messages on the instrument cluster.
- ✔ Communication-related Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or B1001.
- ✔ Intermittent failure of remote keyless entry.
From the Diagnostic Bay: The Case of the Confusing Cruze
A customer brought in a 2013 Chevy Cruze that was driving them crazy. The radio would turn off, the turn signals would stop working, and then everything would be fine for a week. They had already replaced the battery and checked the alternator. When I connected my scan tool, I found a slew of ‘Lost Communication’ codes with various modules. In my 20+ years of experience, this pattern almost always points to the network’s central hub—the BCM. An internal BCM failure was causing it to intermittently drop off the data network, taking other modules with it. We cloned his original module’s data to one of our replacement units, and the car has been fault-free ever since. It’s a classic example of how one failing module can create a dozen confusing symptoms.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the BCM: On most of these models, the BCM is located on the driver’s side, either behind the lower dash panel or in the kick panel area. Consult a service manual for your specific vehicle’s location.
- ✔ Remove Connectors: Carefully unplug all the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Do not force them.
- ✔ Swap the Module: Unbolt or unclip the original BCM from its mounting bracket and remove it. Install your newly programmed module in its place.
- ✔ Reconnect Everything: Plug all electrical connectors firmly into the new BCM until they click. Reconnect the negative battery terminal.
- ✔ Post-Install Checks: Start the vehicle and test all body functions—lights, locks, windows, wipers, etc. Note that some post-install procedures may be required (see below).
Important Post-Installation Information
While our programming makes this a plug-and-play repair, some vehicle systems may require a ‘handshake’ with the new BCM. This is normal. You might need a professional scan tool for the following procedures:
- Airbag System Sync: If the airbag light is on after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the airbag system to the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure proper brake light and traction control operation.
There is no core charge for this part. You can keep your original module.
Verified Vehicle Compatibility
This BCM is a direct replacement for part numbers 13577850, 13505326, 13500384, 13574844, 13504004, 13504494, and 13578420. It is guaranteed to fit the following vehicles:
- 2011 Buick Regal: Body Control (BCM); (LH dash), w/o opt AUA
- 2010 Cadillac SRX: Body Control (BCM); (LH dash)
- 2011, 2013 Chevrolet Cruze: Body Control (BCM); (LH kick panel)
- 2010 Chevrolet Equinox: Body Control (BCM); (LH side dash), body control
- 2010-2011 GMC Terrain: Body Control (BCM); (LH side dash), body control
Frequently Asked Questions
How does the mail-in programming service work?
It’s simple. After you purchase, we will email you detailed instructions and a shipping address. You securely package your original BCM and mail it to us. Once we receive it, our technicians will transfer the data to the replacement module and ship it back to you, usually within 1-2 business days.
Do I need to send my keys or VIN?
No. Because we are cloning the data directly from your original module, all key information and the VIN are transferred over. The car will recognize the new module as if it were the original.
Is this a guaranteed fix for my car’s problems?
This part will fix issues directly caused by a faulty BCM. While the symptoms listed are very common for BCM failure, we always recommend a proper diagnosis by a qualified mechanic to confirm the BCM is the root cause before ordering.
What if my original BCM is completely dead or not communicating?
In many cases, even if the BCM is not functioning in the vehicle, we can still extract the necessary data on our bench-top equipment. Please contact us if your module is severely damaged (e.g., by water or fire) before ordering.
What tools are needed for the post-installation procedures?
The Airbag System Sync and Brake Pedal Position Relearn procedures require a bi-directional professional scan tool, such as those made by Autel, Snap-on, or a GM Tech 2. Basic code readers cannot perform these functions.