If your 2015 Silverado is acting possessed—with flickering lights, a dead instrument cluster, or power windows with a mind of their own—you’re likely dealing with a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen these exact issues countless times. The BCM is the central nervous system for your truck’s body electronics, and when it fails, it creates a cascade of frustrating, seemingly unrelated problems. A trip to the dealership often means a hefty bill for a new module plus hours of programming fees. We offer a smarter, more direct solution.
This is a fully tested, replacement BCM that comes programmed specifically for your vehicle. How? Through our simple mail-in cloning service. You send us your original BCM, and we transfer all the critical, vehicle-specific data—like key information, VIN, and optional features—to this replacement unit. The result is a true plug-and-play module. You get your truck back to 100% without expensive dealer-only tools or programming. It’s the most reliable and cost-effective fix for a faulty 2015 Silverado BCM.
A Technician’s Notebook
I remember a 2015 Sierra 1500 that came into the shop with a laundry list of complaints from the owner. The radio would randomly shut off, the dome light wouldn’t work, and the remote key fob was intermittent at best. He had already replaced the battery and checked all the fuses. A scan showed a dozen communication error codes (U-codes) pointing in every direction. This is a classic sign of a BCM failure. Instead of a $1200+ dealership bill, we used our cloning service. We had his original module overnighted, cloned it to a replacement unit, and shipped it back. He installed it himself in under 30 minutes. All the ghost-like electrical problems vanished instantly. It’s a fix that saves both time and money.
Common Signs of a Failing GM BCM
A faulty BCM can be tricky to diagnose because the symptoms can be so varied. If your truck is experiencing any of the following, the BCM is a primary suspect:
- ✔ Erratic or non-functional interior/exterior lights (headlights, dome lights, dash lights)
- ✔ Power windows, locks, or mirrors not working correctly
- ✔ Horn blaring unexpectedly or not working at all
- ✔ Vehicle security system issues or a no-start condition
- ✔ False warnings on the dashboard (e.g., ‘Service StabiliTrak’, ‘Service Airbag’)
- ✔ Communication loss codes, such as U0100, U0140, or other U-series DTCs
- ✔ Intermittent failure of multiple electronic accessories at once
A Straightforward Guide to Installation
Our cloning service makes the physical replacement simple. Once you receive the programmed module, you can get back on the road quickly.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the BCM: On most 2015 GM trucks like the Silverado and Sierra, the BCM is located under the steering column, behind the lower dash panel. You may need to remove a few plastic trim pieces for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and reconnect all the electrical harnesses. Ensure they click securely into place.
- Reconnect Power: Reattach the negative battery terminal.
- Test Functions: Start the vehicle and test all body functions—lights, windows, locks, radio, etc.—to confirm the repair.
Important Post-Installation Information
Our programming handles the vast majority of functions, but due to the complex safety systems in modern vehicles, a couple of minor relearn procedures may be needed after installing your new 2015 Silverado BCM:
- Airbag System Sync: If the airbag warning light is on after installation, a shop with a professional scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system. This is only required if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure proper brake light and traction control operation.
Disclaimer: Procedures can vary slightly by exact model and trim. Always consult a factory service manual or a qualified technician if you are unsure.
Verified Vehicle Compatibility
This module is a direct fit for units with part numbers 13592137, 13506935, 13506936, 13587704, or 13594764. It is compatible with the following vehicles:
- 2015 Chevrolet Silverado 1500, 2500, 3500
- 2015 GMC Sierra 1500, 2500, 3500 (including Denali)
- 2015 Chevrolet Tahoe & Suburban 1500
- 2015 GMC Yukon & Yukon XL 1500
- 2015 Cadillac Escalade & Escalade ESV
- 2015-2016 Cadillac ATS
- 2015-2016 Cadillac CTS (Sedan)
- 2015 Cadillac XTS
- 2015 Chevrolet Corvette
- 2015-2016 Chevrolet Impala (New Style)
- 2015-2018 Chevrolet Sonic
Please verify the part number on your original module to ensure a perfect match. The location of your BCM may vary depending on the model (e.g., under steering column, on firewall, LH dash).
Frequently Asked Questions
How does the mail-in cloning service work?
It’s simple! After you place your order, we’ll contact you with instructions to ship your original BCM to us. Once we receive it, our technicians will extract the unique data and transfer it to the replacement module. We then ship the plug-and-play replacement back to you, typically within one business day.
Do I have to send my old part back? Is there a core charge?
You must send your original BCM to us for the programming service, but there is no core charge. You can keep your original module after the service is complete.
Will this fix my specific electrical problem?
This module will correct issues directly caused by a failing BCM, such as problems with lights, locks, windows, and security systems. While it solves the most common electrical gremlins, it’s essential to ensure your vehicle’s problem has been properly diagnosed as a BCM failure.
Is this a guaranteed fix for a 2015 Silverado BCM failure?
Yes, if the BCM is the root cause of the problem, this programmed module is the definitive solution. It restores all original functionality by using your vehicle’s own data, eliminating software or compatibility conflicts.
What tools do I need for the installation?
For most GM trucks, you’ll only need basic hand tools like a socket set and a trim removal tool to access the BCM under the dashboard. No special electronic tools are required for the installation itself.