Tired of Unpredictable Electrical Problems in Your GM Vehicle?
If you’re dealing with flickering lights, power windows with a mind of their own, or a car that refuses to start for no apparent reason, you’re not alone. These frustrating and often bizarre electrical gremlins are classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause chaos. Dealerships often charge a fortune for a replacement and the necessary programming. We offer a simpler, more affordable solution.
This is a comprehensive cloning service for your vehicle’s BCM. You simply send us your original module, and we professionally transfer all of its vital data—including key information, security settings, and vehicle-specific options—to a fully tested replacement unit. The module you receive back will be 100% plug-and-play, getting you back on the road without the headache and high cost of dealership programming.
A Technician’s Notebook
Just last month, a 2012 Buick LaCrosse was towed into the shop. The owner was at his wit’s end. Sometimes it would start, sometimes it wouldn’t. The security light would flash randomly, and the radio would occasionally turn on by itself overnight, draining the battery. His scan tool showed a handful of communication codes (U-codes) pointing to a network issue. After checking the main power and ground circuits, we focused on the BCM. By monitoring the data stream, we could see the module dropping offline intermittently. Instead of a complex rewiring job, the fix was a straightforward BCM replacement. This cloning service provides that same effective fix, but without the need for expensive diagnostic labor and in-shop programming time.
Is Your GM Vehicle Showing These BCM Failure Signs?
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The anti-theft or security system light is on, preventing the engine from starting.
- ✔ The horn sounding randomly or the panic alarm activating without cause.
- ✔ Instrument cluster gauges behaving erratically or going dark.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or other U-codes.
- ✔ A complete no-start condition where the starter doesn’t even click.
Your Straightforward BCM Installation Guide
Installing your newly programmed module is a direct swap. While the exact location varies by model, the process is generally the same. This is a great job for a confident DIYer.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On a 2012 Buick Regal, the BCM is typically found in the left (driver’s side) of the dashboard. For other models, it may be in the kick panel, under the center console, or even in the engine bay (like on the Volt). A quick search for your specific model will confirm the location.
- Remove the Old Module: Carefully disconnect the electrical connectors. They have locking tabs that need to be pressed to release. Then, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Seat the replacement BCM into the mounting bracket and securely fasten it. Reconnect all electrical connectors, ensuring they click into place.
- Reconnect the Battery: Reattach the negative battery terminal and tighten it securely. Your installation is complete!
Important Post-Installation Information
Our cloning service makes this a plug-and-play repair, but some vehicle systems may require a ‘handshake’ with the new BCM. Please be aware of the following:
- 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 systems and is not a sign of a faulty part.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn might be necessary for proper brake light and traction control function. This is also performed with a scan tool.
- No Core Charge: You are not required to return your original module to us after the service. Keep it!
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a qualified technician if you are unsure about any step.
Verified Compatibility for Your Vehicle
This programming service and replacement module are compatible with a wide range of GM vehicles. Please verify that your vehicle and original part number are on this list. This module is a direct replacement for the following part numbers: 13580696, 123589093, 13588446, 13584692, and 13583542.
- Buick LaCrosse: 2012-2013 (LH kick panel)
- Buick Regal: 2012 (LH dash)
- Buick Verano: 2012 (Below center of dash)
- Cadillac SRX: 2012 (LH dash)
- Chevrolet Camaro: 2012-2014 (RH dash)
- Chevrolet Equinox: 2012 (LH side dash)
- Chevrolet Spark: 2013 (Left lower a-pillar)
- Chevrolet Volt: 2012 (RH engine compartment)
- GMC Terrain: 2012 (LH side dash)
Frequently Asked Questions
What exactly is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that manages a wide range of electronic functions not related to the engine. This includes power windows, locks, lights, the security system, wipers, and more. When it fails, you get strange electrical issues.
How does this mail-in cloning service work?
It’s simple. After you place your order, we will contact you with instructions to ship your original BCM to us. Once we receive it, we transfer all the necessary programming and security data to a replacement module and ship it back to you, typically within one business day.
Will I need to do any programming myself?
No. The module you receive from us is pre-programmed with your car’s data. The installation is plug-and-play, with no need for expensive scan tools or a trip to the dealership for programming.
Where is the BCM located on my 2012 Regal?
For the 2012 Buick Regal, the BCM is located on the left-hand (driver’s side) of the dashboard, typically behind the lower dash panel.
What if the airbag light comes on after I install it?
This is not uncommon. It simply means the new BCM needs to be electronically introduced to the airbag system’s computer (SDM). A procedure called ‘Setup SDM Primary Key in BCM’ can be performed by any competent shop with a professional scan tool to resolve this.
Is this a reliable fix for my vehicle’s electrical problems?
Absolutely. A failing BCM is one of the most common causes of widespread, intermittent electrical issues in modern vehicles. Replacing it with our programmed unit is a direct and effective solution for the symptoms listed.