Restore Full Functionality to Your GM Vehicle
Are you battling bizarre electrical issues in your truck or SUV? Flickering lights, unresponsive power windows, a security system that acts up, or warning messages that appear for no reason? These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it malfunctions, it can cause a cascade of frustrating and hard-to-diagnose problems. This isn’t just a part—it’s the solution to getting your vehicle’s features working correctly again.
A Technician’s Notebook: The Silverado with a Mind of Its Own
I remember a 2015 Silverado 2500 rolling into my bay that had three other shops stumped. The owner complained of the radio turning off randomly, the dome lights staying on, and the power door locks working only intermittently. There were no engine codes, but the scan tool showed a slew of U-codes (communication errors), specifically U0140 – Lost Communication with Body Control Module. After verifying the network wiring was intact, we pinpointed the BCM itself. The internal processor was failing, creating electronic chaos. By providing a cloned BCM, we had the truck fixed and back to the customer the next day, avoiding a costly tow to the dealer and days of waiting. This is the exact fix for that exact problem.
The Simple, No-Hassle Solution: Our Cloning Service
Forget expensive dealership visits and the headache of programming a new module. Our professional cloning service makes this repair straightforward. Here’s how it works: After you place your order, we’ll provide instructions for shipping your original BCM to us. Our technicians will then transfer all the critical vehicle-specific data—including VIN, mileage, and key information—to this replacement module. We then ship the fully programmed, plug-and-play BCM back to you. This process ensures seamless integration with your vehicle’s existing systems, making the installation as simple as swapping the part. There is no core charge, so you can keep your original module.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, mirrors, or door locks not working correctly.
- ✔ Vehicle security system faults or alarm sounding unexpectedly.
- ✔ Instrument cluster displaying incorrect information or random warning lights.
- ✔ Communication error codes, such as U0140, U0155, or U0164.
- ✔ A no-start condition where the starter does not engage.
- ✔ Problems with the radio or infotainment system.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Access the BCM: On most GM trucks and SUVs like the Sierra, the BCM is located under the driver’s side of the dashboard, often near the steering column or against the firewall. 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 the module from its mounting bracket.
- ✔ Install the New BCM: Mount the new, programmed BCM in the same location and securely fasten it. Reconnect all the electrical connectors, ensuring they click firmly into place.
- ✔ Reassemble and Test: Reinstall any trim panels you removed and reconnect the battery terminal. Start the vehicle and test all body functions—lights, windows, locks, and radio—to confirm the repair was successful.
Important Post-Installation Information
While our cloning service makes this a plug-and-play repair, some vehicle systems may require a recalibration after the BCM is replaced. This is normal. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is illuminated after installation, it means the new BCM needs to be synced with the vehicle’s Sensing and Diagnostic Module (SDM). A professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure to clear the light.
- Brake Pedal Position Relearn: On some models, the brake pedal position sensor may need to be recalibrated to ensure the brake lights and traction control system function properly.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a qualified technician if you are unsure about any step.
Guaranteed Fitment for Your GM Vehicle
This BCM is a direct replacement for part numbers 13594692, 13594768, 13593214, 13580690, 13591519, and 13594769. It is verified to fit the following makes and models:
- Cadillac: ATS (2014), CTS (2014), Escalade/ESV (2015), XTS (2014)
- Chevrolet: Caprice/SS Caprice (2014-2017), Corvette (2014), Impala (2015-2019), Silverado 1500 (2014), Silverado 2500/3500 (2015), Suburban 1500 (2015), Tahoe (2015)
- GMC: Sierra 1500 (2014), Sierra 2500/3500 (2015), Sierra Denali 1500 (2014), Sierra Denali 2500/3500 (2015), Yukon/Yukon XL 1500 (2015)
Please match your part number or check the fitment list carefully to ensure compatibility.
Frequently Asked Questions
How does the mail-in cloning service work?
After your purchase, we will contact you with simple instructions to ship your original BCM to our facility. Once we receive it, our technicians transfer its data to the replacement unit and ship it back to you, usually within 1-2 business days.
Is this really plug-and-play?
Yes. Because we clone the data from your original module, the replacement BCM will be recognized by your vehicle’s other computers, eliminating the need for expensive dealership programming.
What if my original BCM is completely dead or not communicating?
In many cases, even if the BCM has failed, we can still extract the necessary data. If for some reason the data is unrecoverable, we will contact you to discuss options, which may include a full refund.
Do I need special tools for the installation?
For the physical swap, you’ll only need basic hand tools like a socket set and a trim removal tool. However, as noted, a professional scan tool may be required for post-installation procedures like the airbag system sync if the light appears.
Will this fix my specific problem?
This BCM will fix issues directly caused by a faulty module. If you’re experiencing symptoms like erratic lights, accessory failures, or communication codes like U0140, a failing BCM is the most likely culprit. Proper diagnosis is always recommended.