Restore Full Functionality to Your GM Vehicle with a Plug-and-Play BCM
If you’re dealing with a cascade of baffling electrical issues in your 2014 GMC Sierra 1500 or another compatible GM vehicle, you’ve come to the right place. As a technician with over two decades of experience under the hood, I’ve seen firsthand how a failing Body Control Module (BCM) can turn a reliable truck into a source of constant frustration. From power windows that have a mind of their own to a vehicle that refuses to start, the BCM is the central nervous system for your vehicle’s body electronics, and when it fails, chaos ensues. This isn’t just an inconvenience; it can affect safety systems like your lighting and anti-theft security.
We offer a straightforward and reliable solution: a replacement BCM, part number 13594692, that arrives at your doorstep ready for installation. The key is our professional cloning service. You simply send us your original BCM, and we transfer all the critical, vehicle-specific data—including VIN, mileage, and key information—to this replacement unit. This process eliminates the need for expensive dealership programming, saving you hundreds of dollars and significant downtime. This is the most efficient way to get a fully functional 2014 Sierra 1500 BCM without the typical dealership headaches.
Case Study: The Water-Damaged BCM
I remember a 2015 Silverado that came into the bay with a laundry list of complaints: the radio would cut out, the dome light flickered, and occasionally, it just wouldn’t crank. The customer had already replaced the battery and checked the alternator. After plugging in my scan tool, I saw a slew of U-codes, specifically U0140 (Lost Communication With Body Control Module). This pointed me directly to the BCM. On these trucks, the BCM is located under the driver’s side dash. Sure enough, after removing the lower dash panel, I found evidence of water intrusion from a leaky windshield cowl seal. The corrosion on the BCM connectors was the culprit. We used this exact cloning service to get him a working module, and after he had the leak fixed, the truck was back to 100% reliability. It’s a perfect example of how a cloned BCM provides a fast and effective fix.
Is Your GM Vehicle Acting Possessed? Common BCM Failure Signs
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, there’s a strong chance your BCM is the root cause. A proper diagnosis is always recommended, but these are classic symptoms I’ve diagnosed hundreds of times.
- ✔ Intermittent or complete failure of power windows, door locks, or interior/exterior lights.
- ✔ The security or anti-theft light stays on, preventing the engine from starting.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Inaccurate gauge readings or gauges that stop working altogether.
- ✔ Key fobs that suddenly stop communicating with the vehicle.
- ✔ Diagnostic Trouble Codes (DTCs) related to lost communication, such as U0140, U0155, or B1001.
- ✔ Wipers activating on their own or not responding to the switch.
Your Straightforward BCM Installation Guide
With our cloning service, the physical installation is a simple remove-and-replace process. This guide provides a general overview for installing your new 2014 Sierra 1500 BCM. Always disconnect the battery before working on electrical components.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental reconnection.
- Locate the BCM: On most compatible trucks and SUVs like the Sierra, Silverado, and Tahoe, the BCM is located under the driver’s side of the dashboard, often near the steering column or mounted to the firewall.
- Remove Trim Panels: You may need to remove the lower dash panel or knee bolster to gain access. These are typically held in by a few screws and clips.
- 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 BCM: Mount your new, pre-programmed BCM in the same location and reconnect all the electrical connectors. Ensure they click securely into place.
- Reassemble and Reconnect: Reinstall any trim panels you removed. Reconnect the negative battery terminal.
- Final Checks: Start the vehicle and test all body functions: lights, wipers, windows, locks, and radio. Check the instrument cluster for any new warning lights. Refer to the post-installation procedures below if needed.
Important Post-Installation Notes
While our cloning service makes this a plug-and-play repair, some vehicle systems may require a quick synchronization procedure after the new BCM is installed. This is normal and can often be performed by a well-equipped independent shop or a savvy DIYer with a professional-grade scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary to sync the airbag system with the new BCM.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn may be required to ensure correct brake light operation and to keep the traction control system happy.
- No Core Charge: You are not required to return your old module to us. There is no core charge or deposit associated with this purchase.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a qualified technician for procedures specific to your vehicle.
Verified Fitment Across the GM Family
This BCM is a direct replacement for several part numbers and fits a wide range of popular General Motors vehicles. Please verify your original part number is on this list: 13594692, 13594768, 13593214, 13580690, 13591519, 13594769. This part is confirmed to fit the following models, but always match your part number for guaranteed compatibility.
- ATS (2014)
- Caprice / SS Caprice (2014-2017)
- Corvette (2014)
- CTS (2014 Sedan, VIN A)
- Escalade / Escalade ESV (2015)
- Impala (2015-2019)
- Silverado 1500 / Sierra 1500 Pickup (2014)
- Silverado / Sierra HD Pickups (2500/3500) (2015)
- Suburban 1500 / Tahoe (2015)
- XTS (2014)
- Yukon / Yukon XL 1500 (2015)
This is the definitive solution for your 2014 Sierra 1500 BCM and many other GM models experiencing electrical issues.
Frequently Asked Questions
How does the cloning service work?
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 transfer all the essential programming and security data to the replacement module. We then ship the ready-to-install BCM back to you, typically within 1-2 business days.
Do I need to take my car to the dealer after installation?
No! The entire purpose of our cloning service is to avoid dealership programming. The module will arrive pre-programmed for your specific vehicle. In some rare cases, a minor relearn procedure like for the brake pedal sensor might be needed, which can be done by most repair shops.
Is this part number 13591519 or 13594692?
This module, identified by primary part number 13594692, is a direct, compatible replacement for several other part numbers, including 13591519, 13594768, 13593214, 13580690, and 13594769. As long as your original module carries one of these numbers, this part will work.
What if my original BCM is completely dead or missing?
Our cloning service requires a readable original module to extract the data. If your BCM is non-communicative due to water damage or internal failure, we can often still recover the data. If it is physically destroyed or missing, please contact us before ordering to discuss other possible solutions.
Do I have to send my old part back?
You must send your original BCM to us for the cloning service. However, once the service is complete, we ship the new module to you and you do not need to send the old one back again. There is no core charge.