End the Electrical Gremlins in Your GM Vehicle for Good
Are you chasing down bizarre electrical issues in your 2015 Silverado or other GM truck? One minute the radio works, the next it doesn’t. The power windows have a mind of their own, and warning lights are flashing on your dash for no apparent reason. As a technician with over two decades of experience, I’ve seen these exact frustrations hundreds of times. More often than not, the culprit is a failing Body Control Module (BCM)—the central computer responsible for all your vehicle’s comfort and convenience features.
Instead of facing a massive bill and a long wait at the dealership for programming, we offer a simple, reliable solution. This is a replacement BCM that comes perfectly programmed with your vehicle’s specific data. How? We perform a professional cloning service. You simply send us your original BCM, we transfer all the essential data (including security information) to this quality-tested replacement, and ship it right back to you. The result is a true plug-and-play module that gets your truck back to normal without any additional programming fees or hassle.
From the Diagnostic Bay
I remember a 2015 Sierra 2500 that rolled into my shop with a laundry list of complaints: intermittent wipers, flickering dome lights, and a persistent “Service 4WD” message, even though the 4×4 system was mechanically sound. The owner had already replaced the battery and checked all the fuses. After connecting my scan tool, I found multiple U-codes (communication errors) pointing to the BCM. Instead of a complex rewiring job, we used this exact cloning service. Once the programmed BCM was installed, every single electrical gremlin vanished. It was a 20-minute install that saved the customer over $700 compared to the dealership quote.
Is Your Vehicle Showing These Symptoms?
- âś” Erratic or non-working power windows, door locks, or mirrors.
- âś” Interior or exterior lights that stay on, flicker, or won’t turn on at all.
- âś” The horn honking randomly or not working when pressed.
- âś” A no-start condition where the engine cranks but won’t fire, often due to security system confusion.
- âś” Multiple warning lights on the instrument cluster with no obvious cause.
- âś” Diagnostic trouble codes (DTCs) related to communication loss, such as U0100, U0140, or other U-codes.
Your Straightforward BCM Installation Guide
Installing your pre-programmed BCM is a simple process that most DIYers can handle with basic tools. For the 2015 Silverado/Sierra, the BCM is typically located under the driver’s side of the dashboard, near the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning.
- Locate the Original BCM: On most of the listed trucks and SUVs, you’ll find it mounted under the dash to the left of the steering column. Access may require removing a lower dash panel.
- 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 bracket.
- Install the Replacement: Mount the new, programmed BCM in the same location and securely plug in all the electrical connectors. You’ll hear a ‘click’ when they’re seated properly.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position and test all body functions—lights, windows, locks, wipers, etc.—to confirm the repair.
Important Post-Installation Information
Our programming service handles the critical data transfer, but some vehicle systems may require a handshake with the new BCM. Please be aware of the following possibilities:
- Airbag System Sync: If your airbag warning light is on after installation, a simple “Setup SDM Primary Key in BCM” procedure is needed. This requires a professional-grade scan tool to sync the modules and is not a sign of a faulty part.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure perfect brake light and traction control operation.
Guaranteed Fitment for Your GM Vehicle
This BCM is a direct replacement for part number 13587704 and is also compatible with part numbers 13592137, 13506935, 13506936, and 13594764. It is verified to fit the following models:
- ATS: 2015, 2016
- Corvette: 2015
- CTS: 2015, 2016 (Sdn)
- Escalade / Escalade ESV: 2015
- Impala: 2015-2016 (New Style)
- Sierra 1500 / Denali 1500: 2015
- Sierra 2500 / Denali 2500: 2015
- Sierra 3500 / Denali 3500: 2015
- Silverado 1500: 2015
- Silverado 2500: 2015
- Silverado 3500: 2015
- Sonic: 2015-2018
- Suburban 1500: 2015
- Tahoe: 2015
- XTS: 2015
- Yukon / Yukon XL 1500: 2015
Always match your part number or consult the fitment list to ensure compatibility. If you have any questions, our expert team is here to help.
Frequently Asked Questions
Frequently Asked Questions
What exactly is a BCM cloning service?
It’s a process where we transfer the specific software, VIN, and security data from your original, failing BCM to this fully functional replacement unit. This makes the new module a perfect electronic match for your vehicle.
Do I need to program this BCM after I receive it?
No. The entire point of our service is to deliver a plug-and-play solution. Because we’ve cloned your original data, your vehicle will recognize it instantly, saving you from a trip to the dealer.
Will I need to have my keys reprogrammed?
No, you will not. Since we transfer the security information from your old module, your existing keys will work exactly as they did before.
Where is the BCM located on my 2015 Silverado?
On the 2015 Silverado and Sierra, the Body Control Module is typically located under the dashboard on the driver’s side, to the left of the steering column.
What if my airbag light comes on after installation?
This is a normal possibility. It simply means the new BCM needs to be electronically introduced to the airbag module (SDM). A technician with a capable scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve it.
Is there a core charge for this part?
No, there is no core charge. You can keep your original module after you send it to us for the initial data transfer.