Restore Your Truck’s Brain and Banish Electrical Gremlins
Are you battling bizarre electrical issues in your 2014 GMC Sierra 1500? Flickering interior lights, a radio that has a mind of its own, power windows that won’t budge, or even a frustrating no-start condition can all point to one culprit: a failing Body Control Module (BCM). As the central command center for your truck’s body electronics, a faulty BCM can turn your reliable workhorse into a source of daily frustration. This isn’t just an inconvenience; it can affect vehicle security and safety systems.
Forget the expensive dealership visits and the hassle of finding a shop with the right programming tools. We offer a straightforward, reliable solution. This is a replacement BCM, compatible with part numbers like 13594769 and 13594692, that comes pre-programmed with your truck’s exact data. We transfer the critical information from your original BCM to this replacement unit, making installation a simple plug-and-play process. You get a fully functional module without the dealership price tag or programming headaches.
A Technician’s Notebook: The Case of the Haunted Sierra
I remember a 2014 Sierra 1500 rolling into my bay last winter. The owner was at his wit’s end. “It’s possessed,” he said. The dome lights would strobe randomly, the horn would blurt out when he used the turn signal, and sometimes the truck just refused to crank. He’d already replaced the battery and checked the main grounds. The diagnostic scanner was throwing a mix of communication error codes (U-codes) that didn’t point to a single component. This is a classic sign of a failing 2014 Sierra 1500 BCM. The internal logic of the module was failing, sending corrupt signals across the CAN bus network. By providing a cloned BCM, we had him back on the road in an afternoon, with all the ghosts exorcised from his truck’s electrical system.
Is Your Truck Showing These Symptoms?
- ✔ Intermittent or non-functional power windows, locks, or mirrors.
- ✔ Erratic interior or exterior lighting behavior (flickering, staying on, or not working at all).
- ✔ A radio or infotainment system that randomly shuts off or won’t turn on.
- ✔ The security system light stays on, or the alarm triggers for no reason.
- ✔ A no-start or no-crank condition, even with a good battery.
- ✔ False warning messages on the instrument cluster (e.g., “Service StabiliTrak,” “Service Airbag”).
- ✔ Common diagnostic trouble codes (DTCs) like U0140, U0155, or other communication faults.
A Straightforward Guide to Installation
Our cloning service makes this repair accessible for the confident DIYer or any professional mechanic. The goal is to swap the modules physically; we handle the complex programming.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning work.
- Locate the BCM: On most 2014 Sierra/Silverado models, the BCM is located under the steering column, on the driver’s side of the dashboard. 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 pre-programmed replacement BCM in the same location. Secure it firmly and reconnect all electrical connectors, ensuring they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position and test all body functions—lights, windows, locks, radio, etc.—to confirm the repair.
- Perform Relearns (If Needed): As noted below, some vehicles may require a ‘Setup SDM Primary Key’ or ‘Brake Pedal Position Relearn’ procedure if specific warning lights appear. This requires a professional scan tool.
Post-Installation Procedures & Important Notes
While our programming service makes this a near plug-and-play repair, modern GM vehicles have interconnected systems. Depending on your specific vehicle, you may encounter the following:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This syncs the new BCM with the airbag system and must be done with a professional-grade diagnostic tool.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure correct brake light operation and traction control functionality.
- No Core Charge: You’ve already sent us your module for the service, so there are no core charges or returns to worry about. Keep your original module.
Verified Vehicle Compatibility
This BCM service is a direct solution for a wide range of GM vehicles. Please verify your part number and model. This module is compatible with part numbers 13594692, 13594768, 13593214, 13580690, 13591519, and 13594769.
Fits models including:
- 2014 Sierra 1500 Pickup (under steering column)
- 2014 Silverado 1500 Pickup (under steering column)
- 2015 Sierra/Silverado 2500/3500 (ID 13594692)
- 2015 Tahoe, Suburban, Yukon, Escalade (w/o model year break point)
- 2014 Corvette (LH dash)
- 2014-2017 SS Caprice
- 2014-2019 Impala (New Style)
- 2014 Cadillac ATS, CTS (Sdn), XTS
Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
Frequently Asked Questions
How does the programming service work?
After you place your order, we will contact you with instructions to ship your original BCM to us. Once we receive it, we extract the vehicle-specific data and transfer it to the replacement module. We then ship the fully programmed, ready-to-install BCM back to you.
Do I need to do any programming myself?
No. The main programming is completed by us before we ship the part to you. In some cases, minor post-installation relearn procedures, like for the airbag or brake pedal sensor, may be required with a scan tool if a warning light appears.
Is this a guaranteed fix for my truck’s electrical problems?
If your vehicle’s symptoms match those of a failing BCM and the module has been professionally diagnosed as the fault, this service is a reliable and permanent solution. It restores the BCM to its proper operational state.
What is the turnaround time?
We pride ourselves on a fast turnaround. The programming is typically completed and the module is shipped back out within 1-2 business days of us receiving your original BCM.
Why do you need my original BCM?
Your original BCM contains vital information unique to your vehicle, including the VIN, security keys, and specific option configurations. Cloning this data is the only way to ensure a true plug-and-play installation without requiring expensive dealer tools.