Restore Your Truck’s Brain Without the Dealership Headache
Is your 2015 GMC Sierra or related GM vehicle suffering from bizarre electrical problems? Flickering lights, malfunctioning power windows, a security system that won’t cooperate, or even a frustrating no-start condition can often be traced back to a single component: the Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen how a failing BCM can turn a reliable vehicle into a source of constant frustration. It’s the central hub for all your vehicle’s comfort and convenience features, and when it goes bad, chaos ensues.
The typical solution involves a costly trip to the dealership for a new module, followed by expensive programming fees. We offer a smarter, more efficient alternative. This listing is for a replacement BCM featuring our professional cloning service. You simply send us your original BCM, and we transfer all its critical data—including VIN, mileage, and key information—to a fully tested replacement unit. The result? A module that is 100% plug-and-play, saving you hundreds of dollars and eliminating the need for a dealer visit. This is the most reliable way to get your truck back to perfect working order.
Signs Your GM BCM is Failing
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your BCM needs attention. Often, you’ll see communication-related Diagnostic Trouble Codes (DTCs) like U0140, U0155, or other ‘U’ codes stored in the system.
- ✔ Intermittent or non-working power windows, locks, or mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security system or alarm acting erratically or preventing the engine from starting.
- ✔ The horn honking randomly.
- ✔ Inconsistent instrument panel gauge operation.
- ✔ A complete no-crank, no-start condition where the vehicle has power but won’t engage the starter.
From the Diagnostic Bay
I recently had a 2015 Silverado 1500 in the shop that was driving its owner crazy. The dome lights would stay on, draining the battery overnight, and the radio would randomly shut off. The owner had already replaced the battery and checked all the fuses. After a quick scan, I saw multiple communication codes pointing to the 2015 Sierra BCM. Instead of sending him to the dealer for a $1000+ bill, we used our cloning service. He mailed in his module, we cloned it the day it arrived, and shipped it back. He plugged it in himself in under 30 minutes, and every single issue was resolved. That’s the power of a proper data transfer.
A Straightforward Guide to Installation
Our cloning service makes the physical replacement of your 2015 Sierra BCM a simple job that most DIY enthusiasts can handle. The module is typically located under the steering column or on the driver’s side of the dash.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On most Sierra/Silverado models, you’ll find it attached to a bracket under the driver’s side dashboard. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Seat the replacement BCM into the bracket and securely plug in all the electrical connectors. You’ll hear a click as they lock 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 was successful.
Important Post-Installation Note: In some cases, specific relearn procedures may be necessary. For instance, if your airbag light is illuminated, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. Similarly, a ‘Brake Pedal Position Relearn’ might be required for proper brake light and stability control function. Always consult a factory service manual for vehicle-specific requirements.
Verified Vehicle Compatibility
This BCM cloning service is compatible with a wide range of 2015-2018 GM vehicles. Please verify your part number is listed below. Compatible part numbers include: 13592137, 13506935, 13506936, 13587704, 13594764.
- ✔ 2015 Cadillac ATS, CTS, Escalade, Escalade ESV, XTS
- ✔ 2016 Cadillac ATS, CTS
- ✔ 2015 Chevrolet Corvette, Suburban 1500, Tahoe
- ✔ 2015-2016 Chevrolet Impala (New Style)
- ✔ 2015-2018 Chevrolet Sonic
- ✔ 2015 Chevrolet Silverado 1500, 2500, 3500
- ✔ 2015 GMC Sierra 1500, 2500, 3500
- ✔ 2015 GMC Sierra Denali 1500, 2500, 3500
- ✔ 2015 GMC Yukon & Yukon XL 1500
What exactly is a BCM cloning service?
What exactly is a BCM cloning service?
Our cloning service is a data transfer process. We take the essential programming from your original, failing BCM and write it directly onto a replacement module. This ensures the new module has your vehicle’s specific VIN, security settings, and option configuration, making it truly plug-and-play and avoiding the need for dealer programming.
How does the process work after I order?
After you place your order, we will contact you with detailed instructions on how to safely remove and ship your original BCM to our facility. Please ensure your contact information is correct at checkout. Once we receive your module, we perform the cloning service and ship the ready-to-install replacement back to you, typically within 1-2 business days.
Is this really plug-and-play?
Yes, for over 99% of installations. Because we clone your original data, the vehicle recognizes the new module as its own. In rare cases, as with any major electronic repair, a minor relearn procedure like for the brake pedal position sensor might be needed, but you will avoid the complex and expensive security and VIN programming required by the dealer.
What if my original BCM is completely dead or water damaged?
Even if your module seems completely non-functional, we can often still retrieve the necessary data from the memory chip. Please contact us before ordering if your module has significant physical or water damage so we can assess the likelihood of a successful data recovery.
Do I have to send you my keys or other modules?
No. Our cloning process only requires your original Body Control Module. All the necessary key and security information is stored within the BCM itself, so you do not need to send us keys, fobs, or any other components from your vehicle.