Restore Your Truck’s Electrical System with a Pre-Programmed BCM
Is your 2015 Silverado 3500 acting possessed? Flickering lights, intermittent power windows, a security light that won’t turn off, or even a frustrating no-start condition can all point to one culprit: a failing Body Control Module (BCM). As the central hub for your truck’s body electronics, when the BCM goes bad, it can create a cascade of baffling and annoying problems. In my 20+ years of diagnostics, I’ve seen how a faulty BCM can sideline even the toughest trucks, making them unreliable for work or daily driving.
Forget the expensive trip to the dealership and their high programming fees. This is a straightforward, cost-effective solution. We provide a fully tested, replacement BCM compatible with part number 13594768 and others. The best part? We handle all the complex programming for you through our simple mail-in cloning service. We transfer the critical data from your original BCM to this replacement unit, making it a true plug-and-play fix once you receive it back. This ensures all your vehicle’s specific options and security information are perfectly matched, just like the original.
Case Study: A Tricky Diagnosis
A customer brought in his 2015 Sierra 2500—a sister truck to the Silverado—with a complaint that was driving him crazy. The radio would turn on and off by itself, the dome lights would flicker while driving, and occasionally, the turn signals wouldn’t work at all. He’d already replaced the battery and checked all the fuses. After connecting my scan tool, I found a slew of ‘U’ series communication codes, pointing to a network issue. Instead of chasing phantom wiring problems, experience told me to look at the network’s command center: the BCM. A quick test confirmed internal faults. By cloning his original module’s data to a new BCM, we had him back on the road in a day, with all electrical gremlins gone. This is the exact service we offer here.
Is Your GM Truck or Car Showing These Symptoms?
- ✔ Erratic or non-functional interior/exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, door locks, or remote keyless entry working intermittently or not at all.
- ✔ The security or anti-theft system light stays on, preventing the engine from starting.
- ✔ False warnings on the driver information center (DIC).
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or other U-codes.
- ✔ Wipers or radio turning on by themselves.
A Straightforward Guide to Installation
Once you receive your programmed module from us, the physical installation is simple. Our service eliminates the need for any special tools or dealer-level software for programming.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On most 2015 Silverado 3500 Pickups, the BCM is located under the steering column, on the driver’s side of the dash. 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 need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the Replacement: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors, ensuring they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position and test all body functions – lights, locks, windows, radio, etc. – to confirm the repair.
Important Post-Installation Note: In some cases, additional relearn procedures may be needed. If your airbag light is on, a professional scan tool is required for the ‘Setup SDM Primary Key in BCM’ procedure. A Brake Pedal Position Relearn might also be necessary. Always refer to a factory service manual for vehicle-specific details.
Your Guide to a Perfect Match: Verified Fitment
This BCM is a direct replacement for several part numbers, including 13594768, 13594692, 13593214, 13580690, 13591519, and 13594769. It is confirmed to fit the following GM vehicles. Please match your part number or vehicle to ensure compatibility.
- ATS (2014)
- 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 Pickup (2014)
- Silverado 2500 Pickup (2015)
- Silverado 3500 Pickup (2015)
- Suburban 1500 (2015)
- SS Caprice (2014-2017)
- Tahoe (2015)
- XTS (2014)
- Yukon / Yukon XL 1500 (2015)
Frequently Asked Questions
How does the cloning service work?
After you purchase, we will provide instructions for shipping your original BCM to us. Once we receive it, our technicians will transfer its unique programming and security data to the replacement module. We then ship the ready-to-install BCM back to you.
What if my original BCM is completely dead or not communicating?
In many cases, even if the BCM is failing, we can still extract the necessary data. Please contact us before ordering if your module is severely damaged by water or fire, or if it has no communication whatsoever.
Do I need to send my original BCM? Is there a core charge?
Yes, you must send us your original BCM for the data cloning service. However, there is no core charge, and we will ship your original module back to you along with the programmed replacement.
Will this fix my specific problem?
This BCM will resolve issues directly caused by a faulty module. It’s crucial to properly diagnose the problem first, as similar symptoms can be caused by wiring or sensor issues. A professional diagnosis is always recommended.
What tools are needed for the post-installation procedures?
The Airbag System Sync (‘Setup SDM Primary Key’) requires a professional-grade bidirectional scan tool. The Brake Pedal Position Relearn may also require a similar tool, depending on the model. Many local repair shops can perform these procedures if needed.