Tired of Chasing Electrical Gremlins in Your GM Truck?
If you’re dealing with a 2015 Silverado 3500 that’s acting possessed—with flickering lights, a dead instrument cluster, or power accessories that have a mind of their own—you’ve likely met the frustrating reality of a failing Body Control Module (BCM). As the central command center for your truck’s electronics, when the BCM goes down, it can cause a cascade of baffling and seemingly unrelated problems. The dealer solution often involves a brand new module and several hundred dollars in programming fees. We offer a smarter, more direct path back to reliability.
This is a comprehensive programming service for a replacement BCM compatible with part number 13594769. We take all the guesswork and dealership hassle out of the equation. By cloning the essential data from your original, failing module onto this fully tested replacement, we provide a true plug-and-play solution. Your vehicle won’t know the difference, and you’ll avoid the costly and time-consuming process of programming a new module from scratch.
Case Study: A Tricky Diagnosis
A customer brought in a 2015 Sierra 2500 with a perplexing issue: the radio would stay on after removing the key, the power windows worked intermittently, and the ‘Service 4WD’ message would pop up randomly. His local shop had already replaced the battery and checked the alternator. My initial scan revealed a U0140 code—Lost Communication With Body Control Module. After verifying solid power and ground connections at the BCM connector, it was clear the module itself was failing internally. Instead of a costly dealer visit, we used this exact cloning service. Once the programmed module was installed, every single symptom vanished. It’s a testament to how a faulty 2015 Silverado 3500 BCM can create chaos, and how a properly programmed replacement is the definitive fix.
Is Your Truck Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, your Body Control Module is the most likely culprit:
- ✔ Power windows, door locks, or mirrors not working or operating erratically.
- ✔ Interior or exterior lights flickering, staying on, or not turning on at all.
- ✔ The security system or keyless entry malfunctioning.
- ✔ Instrument panel gauges behaving erratically or going completely dark.
- ✔ The radio or infotainment system not turning off with the ignition.
- ✔ A no-start condition where the starter doesn’t engage.
- ✔ Diagnostic trouble codes (DTCs) related to communication, such as U0140, U0155, or other U-codes.
A Straightforward Guide to Installation
Our cloning service handles the complicated programming, making the physical installation a simple swap. For most GM trucks and SUVs, the BCM is located under the driver’s side of the dashboard, near the steering column.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow all systems to power down completely.
- Locate the BCM: On your 2015 Silverado 3500, you’ll typically find the BCM mounted under the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that must be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your newly programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Power: Reinstall any trim panels you removed and reconnect the negative battery terminal.
Important Post-Installation Notes
While our service eliminates the need for primary programming, some vehicle systems may require a simple relearn procedure to sync with the ‘new’ BCM. This is normal and can often be performed with a capable bi-directional scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the systems. This is only required if the light is on.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light operation and traction control functionality.
Disclaimer: Vehicle systems vary. Always consult a factory service manual or a qualified technician if you are unsure about any procedure.
Verified Vehicle Compatibility
This programming service and replacement module are guaranteed to be a direct fit for vehicles requiring part numbers 13594692, 13594768, 13593214, 13580690, 13591519, or 13594769. Please verify your original part number before ordering. This part fits a wide range of GM vehicles, including:
- ATS (2014)
- Caprice / SS Caprice (2014-2017)
- Corvette (2014)
- CTS (2014)
- Escalade / Escalade ESV (2015)
- Impala (2015-2019)
- Sierra 1500 / Denali 1500 (2014)
- Sierra 2500 / Denali 2500 (2015)
- Sierra 3500 / Denali 3500 (2015)
- Silverado 1500 (2014)
- Silverado 2500 PICKUP (2015)
- Silverado 3500 PICKUP (2015)
- Suburban 1500 (2015)
- Tahoe (2015)
- XTS (2014)
- Yukon / Yukon XL 1500 (2015)
Frequently Asked Questions
How does the 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, our technicians will extract the unique vehicle data (like VIN, mileage, and options) and flash it onto the replacement module. We then ship the ready-to-install BCM back to you.
Do I need a dealer to program this 2015 Silverado 3500 BCM?
No. The entire point of our service is to bypass the need for expensive dealer programming. Because we clone your original data, the replacement module is plug-and-play right out of the box.
How long does the entire process take?
We typically program and ship the replacement module within 24-48 hours of receiving your original BCM. The total time will depend on shipping transit times to and from our facility.
What if my part number doesn’t match exactly?
This module and service are compatible with several interchangeable part numbers, including 13594692, 13594768, and 13594769. As long as your original module carries one of the part numbers listed in our compatibility chart, you’re good to go.
Is there a core charge?
No, there is no core charge. We need your original module to perform the data cloning service, but you do not need to return the replacement part after installation.
Why is the airbag or brake light on after I install it?
This can happen occasionally. The vehicle’s other computers, like the Airbag Module (SDM), may need to re-establish their security handshake with the BCM. A simple ‘Setup SDM Primary Key’ or ‘Brake Pedal Position Relearn’ procedure with a professional scan tool will resolve this.