Restore Full Electrical Function to Your GM Vehicle
Are you battling a storm of bizarre electrical issues in your 2015 Sierra or other GM vehicle? Flickering lights, malfunctioning power windows, a security system that acts up, or a dashboard that’s constantly lit with warnings are classic signs of a failing Body Control Module (BCM). As the central nervous system for your vehicle’s comfort and convenience features, a faulty BCM can make driving a frustrating and unpredictable experience. This isn’t just an annoyance; it’s a critical component failure that can affect everything from your door locks to your vehicle’s starting ability.
We offer a simple, reliable solution. This is a replacement Body Control Module, part number 13592137, that comes ready for installation through our professional cloning service. Forget about expensive dealership visits, towing fees, and the headache of programming a new module from scratch. Our process is designed to get you back on the road with minimal downtime. Simply send us your original BCM, and our expert technicians will transfer all the essential data—including VIN, mileage, and key information—to this replacement unit. We ship it back to you, fully programmed and ready to install. It’s the most direct path to resolving those persistent electrical gremlins.
Case Study: A Tricky Diagnosis
I recently had a 2015 Sierra 1500 in the shop that was driving its owner crazy. The symptoms were all over the place: the radio would turn off randomly, the driver’s side window wouldn’t go down, and occasionally, the truck would refuse to crank. The owner had already replaced the battery and checked the alternator. When we scanned it, we found a slew of ‘Lost Communication’ codes (U-codes) pointing to the BCM. A visual inspection of the original BCM showed no obvious damage, but after running some circuit tests, it was clear the module was failing internally. By providing a cloned 2015 Sierra BCM, we restored all functions perfectly without a trip to the dealer, saving the customer hundreds of dollars and a lot of frustration.
Common Signs of a Failing BCM
If you’re experiencing any of the following, your BCM is the likely culprit. This module is often the source of issues that seem unrelated.
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic behavior from interior or exterior lights (staying on or not turning on).
- ✔ Horn sounding unexpectedly or not working at all.
- ✔ Instrument cluster gauges behaving strangely or warning lights appearing without cause (e.g., security light).
- ✔ Key fob not responding or vehicle security system faults.
- ✔ Communication error codes, such as U0140, U0155, or other U-codes.
- ✔ No-start or intermittent starting problems where the engine doesn’t crank.
A Straightforward Guide to Installation
Our cloning service makes the physical swap simple. Once you receive your programmed module, follow these general steps. The BCM in a 2015 Sierra is typically located under the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On most trucks like the Sierra and Silverado, you’ll find the BCM mounted under the driver’s side dashboard, near the steering column. Access may require removing a lower dash panel.
- Disconnect and Remove: Carefully unplug all electrical connectors from the old BCM. They have locking tabs that must be pressed to release. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your pre-programmed replacement BCM in the same location. Securely plug in all the electrical connectors, ensuring each one clicks firmly into place.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Final Checks: Start the vehicle and test all body functions—windows, locks, lights, radio, etc.—to confirm the repair. Refer to the post-installation procedures below if needed.
Important Post-Installation Information
While our programming handles the critical vehicle data, some GM systems require a ‘handshake’ after a new module is installed. These may require a professional 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 necessary if the light is on.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure correct brake light and stability control operation.
Disclaimer: Vehicle systems vary. Always consult a factory service manual or a qualified technician for procedures specific to your vehicle.
Will This Fit My Vehicle?
This BCM is a direct replacement for part number 13592137 and is compatible with other numbers including 13506935, 13506936, 13587704, and 13594764. It fits a wide range of 2015-2018 GM models. Please verify your part number and check the list below.
- 2015 Cadillac ATS, CTS, XTS, Escalade, Escalade ESV
- 2015 Chevrolet Corvette, Suburban 1500, Tahoe
- 2015-2016 Chevrolet Impala (New Style)
- 2015-2018 Chevrolet Sonic
- 2015 Chevrolet Silverado 1500, 2500, 3500
- 2015 GMC Sierra 1500, Sierra Denali 1500
- 2015 GMC Sierra 2500/3500, Sierra Denali 2500/3500
- 2015 GMC Yukon, Yukon XL 1500
- 2016 Cadillac ATS, CTS
Frequently Asked Questions
Frequently Asked Questions
How does the mail-in programming service work?
After you purchase, we will contact you with instructions to ship your original BCM to us. Once we receive it, we transfer all its data to the replacement module and ship it back to you, typically within 1-2 business days. This makes the replacement a true plug-and-play solution.
Do I need to send my keys with the module?
No, you do not need to send your keys. Our cloning process copies all the necessary security information directly from your original BCM, so your existing keys will work seamlessly upon reinstallation.
Is this a guaranteed fix for my vehicle’s problems?
This programmed 2015 Sierra BCM will resolve any issues directly caused by a faulty module. If your vehicle has other underlying problems (like bad wiring or a faulty sensor), those will need to be addressed separately. A proper diagnosis is always recommended.
What happens to my original BCM?
There is no core charge for this service. You are welcome to have your original, non-functional module shipped back to you along with the programmed replacement, or we can recycle it for you.
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 physical installation itself.