Restore Your Truck’s Brain and Banish Electrical Gremlins for Good
Are you chasing bizarre electrical issues in your GM truck or car? Flickering interior lights, power windows with a mind of their own, a security light that won’t turn off, or even a frustrating no-start condition? Before you spend a fortune at the dealership, the culprit is very likely a failing Body Control Module (BCM). As the central nervous system for your vehicle’s comfort and security features, a faulty BCM can create a cascade of confusing problems. This is the simple, reliable solution you’ve been looking for.
We offer a professional programming service for this genuine GM BCM, compatible with part numbers including 13591519 and 13594692. Instead of buying a blank module and paying for expensive dealership programming, you simply send us your original BCM. We then transfer all the critical, vehicle-specific data—like key information, VIN, and optional features—to this replacement unit. The result? A true plug-and-play module that restores full functionality to your vehicle without any additional programming required on your end. It’s the most efficient way to get a reliable 2015 Sierra Denali 2500 BCM and get back on the road with confidence.
A Technician’s Notebook
I recently had a 2015 Sierra 2500 in the bay that was driving the owner crazy. The radio would randomly shut off, the dome lights would flicker while driving, and occasionally the truck wouldn’t recognize the key fob. He’d already replaced the battery and checked all the grounds. After hooking up the scan tool, I saw a series of communication error codes (U-codes) pointing to the BCM. Instead of a costly new module and hours of programming, we used this exact cloning service. The customer shipped his old BCM, we sent back the programmed replacement, and he installed it in his driveway in under 30 minutes. All the strange electrical issues were gone instantly. It saved him hundreds of dollars and a ton of frustration.
Common Signs of a Failing BCM
If your vehicle is exhibiting any of these symptoms, a failing BCM is the most likely cause. A failing module can often log communication codes like U0140, U0155, or various B-codes related to body systems.
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ Vehicle security system malfunctioning, causing alarm issues or a no-start condition.
- ✔ Inaccurate gauge readings on the instrument cluster.
- ✔ Key fobs not being recognized by the vehicle.
- ✔ Communication errors with other modules on the vehicle’s network.
A Straightforward Guide to Installation
Installing your pre-programmed BCM is a simple process. Here’s a general guide for a 2015 Sierra Denali 2500 BCM replacement:
- 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 BCM: On most GM trucks and SUVs from this era, the BCM is located under the driver’s side of the dashboard, often near 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 need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, programmed BCM in the same location and securely reconnect all the electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect and Test: Reinstall any panels you removed, then reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all functions: windows, locks, lights, horn, and starting the vehicle.
Important Post-Installation Notes
While our programming makes this a plug-and-play part, some vehicle systems may require a quick sync procedure after installation. These do not occur on every vehicle but are important to be aware of:
- Airbag System Sync: If the airbag warning light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ function. This syncs the airbag system with the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure correct brake light operation and stability control function. This also requires a capable diagnostic tool.
Guaranteed Vehicle Compatibility
This BCM programming service is a direct solution for a wide range of General Motors vehicles. Please verify your part number and model from the list below. This module is compatible with units bearing part numbers 13594692, 13594768, 13593214, 13580690, 13591519, and 13594769.
Fits the following vehicles (verify options/part ID):
- ATS: 2014
- CAPRICE: 2014-2017
- CORVETTE: 2014
- CTS: 2014 (Sdn, VIN A)
- ESCALADE / ESV: 2015
- IMPALA: 2015-16 (ID 13594692), 2017-2019
- SIERRA 1500 / DENALI 1500: 2014
- SIERRA 2500 / DENALI 2500: 2015 (ID 13594692)
- SIERRA 3500 / DENALI 3500: 2015 (ID 13594692)
- SILVERADO 1500: 2014
- SILVERADO 2500: 2015 (ID 13594692)
- SILVERADO 3500: 2015 (ID 13594692)
- SS CAPRICE: 2014-2017
- SUBURBAN 1500: 2015
- TAHOE: 2015
- XTS: 2014
- YUKON / YUKON XL 1500: 2015
Frequently Asked Questions
Frequently Asked Questions
How does the programming service work?
After you place your order, we will provide you with instructions to ship your original BCM to us. Once we receive it, our technicians will extract the vehicle-specific data and flash it onto the replacement module. We then ship the ready-to-install BCM back to you, typically within 1-2 business days.
Do I need to send my keys?
No, you do not need to send your keys. All the necessary immobilizer and key data is stored within your original BCM, and we transfer that information directly to the new module. Your existing keys will work seamlessly.
What if my original BCM is damaged or unreadable?
In most cases, even with internal faults, we can still retrieve the necessary data. If your module has suffered extreme physical or water damage making it unreadable, we will contact you to discuss options, which may include a full refund.
Is this a permanent fix?
Yes. This is a high-quality replacement BCM that, once programmed with your vehicle’s data, provides a permanent and reliable solution to the problems caused by your old, failing module.
Is there a core charge?
No, there is no core charge for this service. You are welcome to keep your original module after you ship it to us for the data transfer.