Restore Full Functionality to Your GM Truck or SUV
If you’re experiencing a host of bizarre electrical issues in your 2015 GMC Sierra Denali 2500, the Body Control Module (BCM) is a likely culprit. The BCM acts as the central command center for your vehicle’s body electronics, managing everything from power windows and locks to interior lighting, the security system, and even the wipers. When it fails, it can create frustrating and unpredictable problems that can be difficult to diagnose. A simple swap with a used module won’t work, as these units are programmed specifically to your vehicle’s VIN and options. This is where our professional programming service comes in.
Common Symptoms of a Failing BCM
A faulty Body Control Module can manifest in numerous ways. If you’re noticing any of the following issues, it’s a strong indicator that your BCM may need replacement:
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ The horn, windshield wipers, or radio activating randomly without input.
- ✔ A “Service Theft Deterrent System” message appearing on the dash or the vehicle failing to start.
- ✔ Instrument cluster gauges flickering, behaving erratically, or going completely dead.
- ✔ Diagnostic scans showing multiple U-codes, indicating a loss of communication between modules.
The Simple, Plug-and-Play Solution: Our Cloning Service
Forget expensive dealership visits and the hassle of finding a shop with the right tools. Our mail-in cloning service is the most straightforward way to solve your BCM problems. The process is designed for simplicity and to get you back on the road quickly:
- Place Your Order: Purchase this service and ensure your contact information is up to date.
- We Contact You: Our team will reach out with clear, step-by-step instructions for removing and shipping your original BCM to our facility.
- Data Transfer: Once we receive your module, our expert technicians will carefully extract all the critical, vehicle-specific data. This includes your VIN, mileage, security keys, and optional feature settings.
- Programming the Replacement: We transfer this complete data set onto a fully tested replacement BCM (Part #13594692). This creates an exact electronic duplicate—a “clone”—of your original unit.
- Shipped Back to You: We ship the programmed, ready-to-install module back to you. Once it arrives, the installation is plug-and-play. No further programming is required.
Installing Your Programmed 2015 Sierra Denali BCM
Physical installation is straightforward. First, disconnect the negative battery terminal to ensure the vehicle’s electrical system is powered down. The BCM is typically located under the driver’s side of the dashboard, near the steering column. Carefully disconnect the wiring harnesses, unbolt the old module, and install the new one in its place. Reconnect the harnesses and the battery terminal. While the module is plug-and-play, there are a couple of post-installation procedures that may be necessary:
- Airbag System Sync: If the airbag warning light comes on after installation, don’t be alarmed. The ‘Setup SDM Primary Key in BCM’ procedure will need to be performed with a professional diagnostic tool to sync the new BCM with the airbag system and turn off the light. This is only required if the light is on.
- Brake Pedal Position Relearn: Depending on your specific model and options, a brake pedal position sensor recalibration may be necessary. This ensures proper brake light function and correct operation of the traction and stability control systems.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Guaranteed Compatibility
This service and replacement module are compatible with a wide range of GM vehicles. This BCM is a direct replacement for part numbers 13594692, 13594768, 13593214, 13580690, 13591519, and 13594769. It fits many popular models including the Chevrolet Silverado, Suburban, Tahoe, Corvette, Impala, and Caprice, as well as the GMC Sierra, Yukon, and Cadillac Escalade, ATS, CTS, and XTS from various model years. Please verify your part number to ensure compatibility.
Frequently Asked Questions
What exactly is a “cloning” or “programming” service?
This service involves transferring the unique, vehicle-specific data from your original BCM to a replacement unit. This makes the new module a perfect electronic match for your truck, allowing it to be installed without needing any additional programming from a dealer.
How long does the process take once you receive my BCM?
We pride ourselves on a fast turnaround. Typically, the programming service is completed and the replacement module is shipped back out within 1-2 business days of us receiving your original part.
What if my original BCM is completely dead or damaged?
In most cases, even with significant electronic failure or water damage, we can still retrieve the necessary data. If for some reason the data is completely unrecoverable, we will contact you to discuss alternative options.
Do I need to do any programming myself after I get the module back?
No, the module you receive will be fully programmed and ready for installation. The only potential follow-up steps are the vehicle-specific relearn procedures mentioned, such as the Airbag System Sync, which may require a professional scan tool.
Where is the BCM located on my 2015 Sierra Denali?
The Body Control Module on a 2015 Sierra Denali 2500 is typically found under the driver’s side dashboard, mounted near the steering column.
Why is the airbag light on after installation?
The airbag system (SDM) and the BCM are linked for security. When the BCM is replaced, this link must be re-established. A ‘Setup SDM Primary Key in BCM’ procedure with a compatible scan tool will resolve this and turn off the light.