Tired of Electrical Gremlins in Your GM Truck?
If your 2014 Sierra 1500 is acting possessed—with flickering lights, malfunctioning power windows, a temperamental security system, or strange warning messages on the dash—you’re likely dealing with a failing Body Control Module (BCM). As an experienced tech, I’ve seen these exact issues hundreds of times. The BCM is the central nervous system for your truck’s body electronics, and when it fails, it can cause a cascade of frustrating and seemingly unrelated problems. Don’t let a faulty module sideline your truck or force you into an expensive trip to the dealership.
We offer a straightforward, reliable solution. This is a replacement BCM, part number 13594692, that comes fully programmed with your vehicle’s original data. How? Through our simple mail-in cloning service. You send us your original BCM, we transfer all the critical information (like VIN, mileage, and key data) to this replacement unit, and ship it right back to you. The result is a true plug-and-play module that restores full functionality without requiring any dealership intervention or costly programming fees.
Case Study: A Tricky Diagnosis
A customer brought in a ’14 Sierra 1500 with a complaint that was driving him crazy: the radio would randomly turn off, the dome light would flicker while driving, and occasionally the truck wouldn’t recognize his key fob. He’d already replaced the battery and checked all the fuses. After connecting my scan tool, I saw several communication error codes (U-codes) pointing to the BCM. Instead of a complete failure, the BCM was failing intermittently, sending corrupt data across the network. By providing a cloned BCM, we were able to solve all his electrical issues in one shot, saving him from the dealership’s multi-step diagnostic and programming process which would have cost nearly double.
Is Your Truck Showing These Symptoms?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, this module is the likely solution.
- ✔ Erratic or non-functional interior/exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system acting up, causing no-start conditions (Service Theft Deterrent System message).
- ✔ Communication error codes stored, such as U0140, U0155, or other U-series codes.
- ✔ Wipers or radio turning on and off by themselves.
- ✔ Inaccurate gauge readings or warning lights that won’t turn off.
A Straightforward Guide to Installation
Our cloning service makes the physical installation simple. Once you receive your programmed module, you’re ready to get your truck back to normal.
- Safety First: Always disconnect the negative terminal from your truck’s battery before starting any electrical work.
- Locate the BCM: On the 2014 Sierra 1500, the BCM is typically located under the steering column, on the driver’s side of the dash. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from your old BCM. They have locking tabs, so be gentle. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all the electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect Power: Re-attach the negative battery terminal and tighten it securely.
- Final Checks: Start the vehicle and test all body functions: lights, windows, locks, wipers, and radio to confirm proper operation. Please see the important notes below regarding potential post-installation steps.
Important Post-Installation Notes
While our programming handles the vast majority of functions, some vehicle systems require a final handshake after installation. Be aware of the following:
- 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 to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: In some cases, a brake pedal position sensor relearn may be required to ensure your brake lights and traction control system function correctly. This is also performed with a scan tool.
Disclaimer: Procedures can vary slightly. Always refer to a factory service manual or consult a qualified technician if you are unsure.
Will This Fit My Vehicle?
This BCM, part number 13594692, is a direct fit for a wide range of GM vehicles. It is compatible with the original part and also interchanges with part numbers: 13594768, 13593214, 13580690, 13591519, and 13594769. Please verify your vehicle is on the list below.
- ATS: 2014
- CAPRICE / SS CAPRICE: 2014-2017
- CORVETTE: 2014
- CTS: 2014 (Sdn, VIN A)
- ESCALADE / ESCALADE ESV: 2015
- IMPALA: 2015-2016 (VIN 1, ID 13594692), 2017-2019
- 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
How does the mail-in cloning service work?
After you place your order, we will contact you with instructions to ship your original BCM to our facility. Once we receive it, our technicians will extract the unique data and transfer it to the replacement module. We then ship the programmed module back to you, typically within 1-2 business days.
Do I need to get this programmed by the dealer?
No. The entire purpose of our service is to provide you with a module that is already programmed for your specific vehicle. This saves you the time, cost, and hassle of a dealership visit.
Is there a core charge or do I need to return my old BCM?
There is no core charge. We only need your original module for the data transfer. You are welcome to keep your original, non-functional module after the service is complete.
What if my original BCM is completely dead or not communicating?
In most cases, even if the BCM is causing significant issues, the core data on the memory chip is still readable. If we encounter a rare case where the data cannot be retrieved, we will contact you immediately to discuss options.
Will this fix my specific problem?
This module corrects issues directly caused by a faulty BCM. While the symptoms listed are very common for BCM failure, proper vehicle diagnosis is always recommended to rule out other potential causes like wiring or sensor faults.