If you’re dealing with bizarre electrical issues in your 2014 Sierra 1500, you’re not alone. As the central hub for your truck’s body electronics, a failing Body Control Module (BCM) can cause a cascade of frustrating and seemingly unrelated problems. From flickering lights to a vehicle that won’t start, a bad BCM can make your reliable truck feel haunted. Forget expensive dealership visits and complex programming sessions. We offer a straightforward, reliable solution: a replacement BCM that is programmed using the data from your original module, making the repair process as simple as swapping a part.
This service is designed for both seasoned mechanics and determined DIYers. You simply send us your original BCM, and our expert technicians will clone all the critical vehicle-specific data—including VIN, mileage, and key information—onto a fully tested replacement unit. We then ship the ready-to-install module back to you. This process ensures seamless integration with your truck’s existing systems, eliminating the need for a costly trip to the dealer for programming. It’s the most efficient way to restore your truck’s functionality and peace of mind.
Is Your Truck Showing These Symptoms?
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, locks, or mirrors working intermittently or not at all.
- ✔ The security system engaging randomly or preventing the engine from starting.
- ✔ A ‘Service Theft Deterrent System’ message on the dash.
- ✔ Communication error codes, such as U0140 (Lost Communication With Body Control Module), stored in other modules.
- ✔ Unresponsive key fobs or push-to-start system failures.
- ✔ Horn honking unexpectedly or not working when pressed.
A Technician’s Notebook
I remember a 2014 Sierra 1500 that came into the bay with a classic ‘ghost in the machine’ complaint. The owner said his dash lights would flicker, the radio would cut out, and sometimes the truck would refuse to crank. He’d already replaced the battery and checked the main grounds. When I connected my scan tool, I found a slew of communication codes pointing to the BCM. After confirming power and ground to the module were solid, it was clear the BCM itself was failing internally. Instead of a multi-day dealer affair, we used a cloned BCM. The owner had his truck back the next day, fully functional, saving him significant time and money. These modules are the true nerve center, and when they go, the symptoms can be all over the map.
A Straightforward Guide to Installation
Installing your programmed BCM is a manageable job for anyone with basic tools. The goal is to simply swap the old module with the new one we send you.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow all systems to power down completely.
- Locate the BCM: On most 2014 Sierra 1500 models, the BCM is located under the driver’s side of the dashboard, 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 original 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, pre-programmed BCM in the exact same location. Firmly reconnect all the electrical connectors, ensuring they click into place.
- Final Steps: Reinstall any trim panels you removed. Reconnect the negative battery terminal. Start the vehicle and test all functions—lights, windows, locks, etc.—to confirm the repair.
Important Post-Installation Notes
While our programming service makes this a near plug-and-play repair, some vehicle systems may require a ‘handshake’ with the new BCM. Please be aware of the following:
- Airbag System Sync: If your airbag warning light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. 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 to satisfy the traction control system.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a qualified technician if you are unsure about any step.
Will This Fit My Vehicle?
This BCM is a direct replacement for part numbers 13594692, 13594768, 13593214, 13580690, 13591519, and 13594769. It is guaranteed to fit the following vehicles:
- 2014-2017 Chevrolet SS & Caprice
- 2014 Cadillac ATS, CTS, XTS
- 2014 Chevrolet Corvette
- 2014-2015 Chevrolet Silverado 1500 / GMC Sierra 1500
- 2015 Chevrolet Silverado 2500/3500 & GMC Sierra 2500/3500 (confirm ID 13594692)
- 2015-2019 Chevrolet Impala (New Style)
- 2015 Chevrolet Suburban & Tahoe
- 2015 Cadillac Escalade & Escalade ESV
- 2015 GMC Yukon & Yukon XL 1500
How does the cloning service work?
How does the cloning service work?
After you place your order, we will provide you with instructions to ship your original BCM to us. Our technicians then extract the unique data from your module and transfer it to a fully functional replacement unit. We then ship the programmed module back to you, ready for installation. This ensures all your vehicle’s options and security information are preserved.
Do I need to get this programmed at the dealer?
No. The entire point of our service is to eliminate the need for dealer programming. Because we clone your original data, the replacement BCM is plug-and-play. This saves you time, towing fees, and expensive labor charges.
Is there a core charge?
No, there is no core charge. We need your original module to perform the data cloning service, but you are not required to leave it with us. You can keep your old part.
What if I have an airbag light after installation?
In some cases, the vehicle’s Supplemental Restraint System (SRS) needs to be re-synchronized with the new BCM. This is done via a ‘Setup SDM Primary Key in BCM’ procedure, which requires a professional-grade diagnostic scan tool. This is a standard procedure and can be performed by most independent repair shops.