Tired of Your Truck’s Electrical Gremlins? Here’s the Solution.
As a technician with over two decades of experience, I’ve seen firsthand how a failing Body Control Module (BCM) can turn a reliable truck into a source of constant frustration. Are your power windows acting up? Do your dash lights flicker randomly? Is your truck sometimes refusing to start for no apparent reason? These aren’t separate problems; they’re often symptoms of a single failing component: the BCM. It’s the central hub for your vehicle’s body electronics, and when it goes, it creates chaos. This isn’t just an inconvenience—it can be a serious safety issue.
We offer a straightforward, reliable fix. This isn’t just a part in a box; it’s a complete service. You’re purchasing a replacement BCM that we will professionally program with the data from your vehicle’s original module. This cloning process makes the replacement unit a true plug-and-play solution, eliminating the need for expensive and time-consuming programming at a dealership. Simply send us your original BCM, and we’ll handle the rest, getting you back on the road quickly and affordably.
A Technician’s Notebook: The Ghost in the Machine
I remember a 2015 Silverado 2500 that came into the shop with a laundry list of bizarre, intermittent issues. The radio would shut off, the dome light would stay on, and the driver’s window would only work when it felt like it. The owner had already replaced the battery and checked all the fuses. After connecting my scan tool, I saw a storm of communication errors (U-codes) pointing to the BCM. The module wasn’t completely dead, but it was failing internally, corrupting data and sending faulty commands. By installing a pre-programmed BCM using the original’s data, we restored all functions instantly. It’s a classic case I’ve seen dozens of times; a single module causing system-wide chaos.
Is Your GM Vehicle Showing These Signs of BCM Failure?
A faulty BCM can manifest in many ways. If you’re experiencing any of the following, your BCM is the likely culprit:
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security system preventing the vehicle from starting (anti-theft light flashing).
- ✔ Horn honking unexpectedly or not working.
- ✔ Warning lights on the dashboard for the Airbag (SRS), ABS, or Traction Control systems.
- ✔ Diagnostic Trouble Codes (DTCs) related to lost communication, such as U0100, U0140, or other U-series codes.
- ✔ Wipers activating on their own or not responding to the switch.
A Straightforward Guide to Installation
Once you receive your programmed module from us, the physical installation is simple. For most listed trucks and SUVs, the BCM is located under the driver’s side of the dashboard, near the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On your 2015 Sierra 2500, this is typically under 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 newly programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Power Up: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions (lights, locks, windows, etc.) to confirm the repair.
Important Post-Installation Notes
In some cases, additional steps may be required after installation. If your airbag warning light is illuminated, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. Additionally, some models may require a ‘Brake Pedal Position Relearn’ to ensure proper function of the brake lights and stability control. Always refer to a factory service manual for vehicle-specific instructions.
Verified Vehicle Compatibility
This programming service and replacement module are compatible with a wide range of GM vehicles. Your replacement module will carry part number 13594692, which is the correct service replacement for the original part numbers 13594769, 13594768, 13593214, 13580690, and 13591519. Please match your vehicle and options below:
Fits: 2014-2015 Sierra/Silverado 1500/2500/3500, 2015 Suburban/Tahoe/Yukon/Escalade, 2014-2017 SS Caprice, 2014 Corvette, 2014 CTS, 2014 ATS, 2014 XTS, 2015-2019 Impala, and more. Please verify the part number ID or contact us if you are unsure about your specific application.
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. Once we receive it, our technicians will extract the unique vehicle data and transfer it to the replacement module. We then ship the ready-to-install, programmed module back to you. This ensures all your vehicle’s options and security information are preserved.
Do I need to do any programming myself?
No. The main benefit of our service is that the module arrives fully programmed and ready for installation. This saves you a trip to the dealership and the high costs associated with their programming procedures. In rare cases, a simple relearn procedure as noted above may be required.
Is there a core charge?
No, there is no core charge for this service. We only need your original module to perform the data transfer. You are welcome to keep your original, non-functional module after the service is complete.
What if this doesn’t fix my problem?
While the symptoms listed are classic signs of BCM failure, proper vehicle diagnostics are essential. We guarantee the function of our programmed module. If your issues persist after installation, the fault may lie elsewhere in the vehicle, such as in wiring or another component. We recommend a thorough diagnosis by a qualified mechanic.