Restore Your Truck’s Electrical System with a Plug-and-Play Solution
If you’re dealing with bizarre electrical gremlins in your 2015 Sierra Denali 2500—like power windows with a mind of their own, flickering lights, or a security system that won’t cooperate—you’ve likely met the frustrating reality of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, when the BCM goes down, it can cause a cascade of confusing and annoying problems. Taking it to the dealership often means high costs, long waits, and complex programming procedures. This is a smarter, faster way to get your truck back to 100%.
We offer a straightforward solution: a replacement BCM with part number 13594692 that arrives at your door fully programmed. We achieve this through a professional cloning service. Simply purchase this module, and we’ll provide instructions for shipping your original BCM to our facility. Our technicians will transfer all the critical vehicle-specific data—including VIN, mileage, and options—to this replacement unit. The result is a true plug-and-play module, eliminating the need for expensive dealer tools or programming. It’s the most efficient way to solve complex electrical issues and restore the seamless operation you expect from your vehicle.
Case Study: A Tricky Diagnosis
A customer brought in a 2015 Silverado 2500 (which uses the same platform as the Sierra) with a laundry list of complaints: the radio would turn off randomly, the driver’s side window wouldn’t go down, and the horn would chirp when using the turn signal. He had already replaced the battery and checked all the fuses. On the surface, the issues seemed unrelated. After connecting my scan tool, I found multiple U-codes (communication errors) pointing to the BCM. Instead of a costly new module and hours of programming at the dealer, we used this exact cloning service. He sent us his old BCM, we cloned it, and sent the replacement back. He installed it in under 30 minutes, and every single issue was resolved. It’s a perfect example of how a central failure can create widespread, confusing symptoms.
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. This programmed 2015 Sierra Denali 2500 BCM is designed to fix these exact issues.
- âś” Erratic or non-functional power windows, door locks, or mirrors.
- âś” Interior or exterior lights that stay on, flicker, or don’t work at all.
- âś” The security system or keyless entry malfunctioning or setting off false alarms.
- âś” Wipers behaving unpredictably (e.g., won’t turn off).
- âś” Instrument cluster warning lights appearing without a clear cause.
- âś” Communication error codes, often in the U-series (like U0140, U0155), stored in the system.
- âś” The vehicle failing to start due to an immobilizer/security conflict managed by the BCM.
A Straightforward Guide to Installation
With our programming service handling the complex part, the physical installation is very manageable for a DIYer or any professional mechanic. For the 2015 Sierra Denali 2500, the BCM is typically located under the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the Original BCM: On most GM trucks of this era, you’ll find the BCM mounted to the left of the steering column, often behind a lower dash panel. You may need to remove a plastic trim piece for access.
- Disconnect and Remove: Carefully unplug the multiple wiring harnesses connected to the module. 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 reconnect all wiring harnesses—they are color-coded and keyed to only fit in the correct spot.
- Power Up and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions: lights, windows, locks, wipers, and radio to confirm proper operation.
Important Post-Installation Notes
While our cloning makes this a plug-and-play repair, some vehicle systems may require a quick handshake with the new BCM. Don’t be alarmed if you see one of the following; they are easily resolved:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a simple “Setup SDM Primary Key in BCM” procedure is needed. This requires a professional-grade scan tool and syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn might be necessary to ensure brake lights and stability control function correctly. This is also performed with a scan tool.
Disclaimer: Vehicle systems vary. Always have a factory service manual available for your specific model or consult with a certified technician if you are unsure about any step.
Verified Vehicle Compatibility
This module, identified by part number 13594692, is a direct replacement for several other part numbers including 13594768, 13593214, 13580690, 13591519, and 13594769. It is guaranteed to fit the following vehicles, but always match your part number to ensure compatibility.
- ATS (2014)
- CAPRICE / SS CAPRICE (2014-2017)
- CORVETTE (2014)
- CTS (2014 Sedan, VIN A)
- ESCALADE / ESCALADE ESV (2015)
- IMPALA (2015-2019, New Style)
- SIERRA 1500 / DENALI 1500 (2014)
- SIERRA 2500 / 3500 / DENALI 2500 / DENALI 3500 (2015, ID 13594692)
- SILVERADO 1500 (2014)
- SILVERADO 2500 / 3500 (2015, ID 13594692)
- SUBURBAN 1500 (2015)
- TAHOE (2015)
- XTS (2014)
- YUKON / YUKON XL 1500 (2015)
Frequently Asked Questions
What exactly is a BCM cloning service?
Cloning is a process where we extract the unique, vehicle-specific software from your original BCM and transfer it directly onto the replacement module. This includes the VIN, security information, and settings for your vehicle’s options. This makes the replacement unit a true plug-and-play part, avoiding the need for dealer programming.
Do I need to get this module programmed by a dealer after I receive it?
No. The entire point of our service is to handle the programming for you. Once you receive the module from us, it is ready for installation without any further programming required.
What is the process after I place my order?
After you complete your purchase, we will contact you with detailed instructions on how to safely remove and ship your original BCM to our facility. Please ensure your contact information is accurate. Once we receive your module, we’ll perform the cloning service and ship the pre-programmed replacement back to you, providing tracking information at that time.
Is there a core charge or do I need to return my old BCM?
We require your original BCM to perform the cloning service, but there is no separate core charge. You will not get your original module back as we are programming its data onto the replacement unit we provide. You get to keep the non-functional original part.
Why is my airbag light on after installing the new BCM?
This is a normal security feature in GM vehicles. The new BCM needs to be electronically introduced to the vehicle’s airbag system (SDM). A mechanic with a professional scan tool can perform the “Setup SDM Primary Key in BCM” procedure in a few minutes to resolve this.
Will this fix my specific electrical problem?
This module is designed to fix issues directly caused by a faulty BCM. The symptoms list above covers the most common failures. If you’ve properly diagnosed the BCM as the source of the problem, this part is the solution.