Restore Your Truck’s Electrical System with a Hassle-Free Solution
Are you chasing down electrical gremlins in your 2015 GM vehicle? Flickering lights, malfunctioning power windows or locks, a security system that acts up, or strange warning messages on the dash are all classic signs of a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and seemingly unrelated problems. Instead of facing a costly trip to the dealership for diagnostics and programming, we offer a streamlined, reliable fix.
This is a professionally programmed BCM, ready for installation. Our service is simple: after your purchase, you’ll ship your original BCM to us. We will then transfer all the critical vehicle-specific data—including VIN, mileage, and key information—to this replacement unit. The result is a true plug-and-play module. By cloning your original data, we eliminate the need for expensive scan tools or dealership intervention, getting you back on the road quickly and affordably.
Case Study: A Tricky Diagnosis
I remember a 2015 Sierra 1500 that came into the bay last winter. The owner was at his wit’s end. The radio would randomly shut off, the dome light would stay on, and occasionally, the power door locks wouldn’t respond. He’d already replaced the battery and checked all the fuses. Another shop told him it might be a wiring issue, which would mean hours of expensive diagnostic labor. After a quick scan, I saw several U-codes (communication errors) pointing to the BCM. Instead of a wild goose chase, we recommended our cloning service. He sent us his module, we cloned it to a replacement unit, and he installed it in under 30 minutes. All the bizarre electrical issues vanished instantly. It’s a perfect example of how a failing 2015 Sierra BCM can mimic a dozen other problems.
Is Your GM Vehicle Showing These Symptoms?
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, mirrors, or door locks working intermittently or not at all.
- ✔ The security system or keyless entry failing to operate correctly.
- ✔ Warning lights on the dashboard, such as the airbag or security light.
- ✔ Communication error codes (U-codes) stored in the system, like U0140.
- ✔ The vehicle fails to start, even with a good battery and starter.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- ✔ Locate the BCM: On most 2015 Sierra and Silverado models, the BCM is located under the steering column, on the driver’s side of the dashboard. Consult a service manual for the exact location on other compatible models.
- ✔ Remove the Old Module: Carefully disconnect all electrical connectors from the original BCM. Note their orientation. Then, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location. Reconnect all the electrical connectors, ensuring they are seated firmly.
- ✔ Power Up: Reconnect the negative battery terminal. Start the vehicle and test all functions (lights, windows, locks, etc.) to confirm the repair.
Important Post-Installation Information
While this is a plug-and-play solution, some vehicle systems may require a ‘handshake’ with the new BCM. Please be aware of the following possibilities:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the airbag system with the new BCM.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn may be required to ensure correct brake light operation and traction control functionality.
Disclaimer: Procedures can vary. We always recommend consulting a factory service manual or a certified technician for your specific vehicle.
Guaranteed Fitment for Your GM Vehicle
This BCM is a direct replacement for part number 13594764 and is interchangeable with the following part numbers: 13592137, 13506935, 13506936, and 13587704. It is verified to fit the following models:
- ATS: 2015, 2016
- Corvette: 2015
- CTS: 2015, 2016
- 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
Frequently Asked Questions
How does the mail-in cloning service work?
After you place your order, we will provide you with shipping instructions. You send us your original BCM. We then copy its unique software and security data onto this replacement module and ship it back to you, typically within one business day of receipt.
Do I need to program this BCM after I receive it?
No. Because we clone the data from your original module, this replacement BCM is a true plug-and-play solution. No further programming or dealership visits are required for the module itself.
Where is the BCM located on my 2015 Sierra?
On the 2015 GMC Sierra and Chevy Silverado, the Body Control Module is typically found under the driver’s side dashboard, near the steering column.
What happens if my airbag light turns on after installation?
This is an occasional possibility. It means the new BCM needs to be electronically introduced to the airbag system (SDM). A technician with a professional-grade scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to clear the light.
Is there a core charge for my old part?
No, there is no core charge. We need your original module to perform the data transfer, but you are free to keep it afterward.