Restore Full Function to Your Cadillac with a Hassle-Free BCM Solution
As a technician with over two decades in the bay, I’ve seen how a failing Body Control Module (BCM) can turn a luxury vehicle like your 2015 Cadillac XTS into a source of constant frustration. Are you dealing with a car that seems to have a mind of its own? Flickering interior lights, power windows that won’t budge, a security system that acts up, or dashboard warnings that make no sense? These aren’t just annoyances; they’re classic signs of a BCM breakdown. The BCM is the central hub for your vehicle’s body electronics, and when it fails, chaos ensues. Dealerships will quote you a fortune for a new module plus mandatory, expensive programming fees. We offer a smarter, more direct solution.
This is a comprehensive cloning service for your 2015 XTS BCM. Here’s how it works: You purchase this service and ship your original, faulty BCM to our facility. We then transfer all the critical vehicle-specific data—including VIN, mileage, and key programming—to this fully tested replacement module. We ship it back to you, ready for installation. This process bypasses the need for a trip to the dealer, saving you significant time and money. It’s the most reliable way to get your car back to 100% without reprogramming headaches.
From the Diagnostic Bay: The Ghost in the Sierra
A customer brought in a 2015 Sierra 1500 with some of the weirdest symptoms I’ve ever seen. The radio would switch stations on its own, the dome light would flicker while driving, and occasionally the power locks would cycle repeatedly at a stoplight. He’d been to two other shops that couldn’t find the issue. A scan showed a handful of U-codes (communication errors) pointing to the BCM. Instead of just replacing it, which would require a complex setup, we performed a data clone onto a replacement unit just like this one. The result? Every single phantom electrical issue vanished. It highlights how a single failing 2015 XTS BCM (or its equivalent in other GM models) can be the root cause of dozens of seemingly unrelated problems.
Common Signs of a Failing BCM
If your vehicle is exhibiting these issues, a faulty BCM is the likely culprit. Don’t let these problems linger, as they can affect vehicle safety and operation.
- ✔ Flickering or non-working headlights, taillights, or interior lights.
- ✔ Power windows, locks, or seats operating intermittently or not at all.
- ✔ The security system or keyless entry failing to work correctly.
- ✔ Inaccurate readings on the instrument cluster gauges.
- ✔ Diagnostic trouble codes (DTCs) such as U0140, U0155, or B1001 stored in the system.
- ✔ A no-start condition where the starter doesn’t engage, even with a good battery.
A Straightforward Guide to Installation
Installing your newly programmed BCM is a direct process. On the 2015 XTS, the BCM is located at the left front hinge pillar. While locations vary on other models, the replacement steps are similar.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the BCM: Find the Body Control Module. In your XTS, it’s inside the cabin near the driver-side A-pillar/hinge area. For other models, it’s often under the steering column or behind a kick panel.
- Disconnect and Remove: Carefully unplug all electrical connectors from the old BCM. Note their orientation. Then, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, programmed BCM in the same location. Securely reconnect all electrical connectors into their correct ports.
- Reconnect Power: Reattach the negative battery terminal and tighten it securely.
- Test Functionality: Start the vehicle and test all body functions: lights, windows, locks, wipers, and radio to ensure everything is working as expected.
- Post-Install Checks: As noted in our policies, some vehicles may require a ‘Brake Pedal Position Relearn’ or an ‘Airbag System Sync’ with a pro-level scan tool if specific warning lights appear. This is not always needed but is a possibility.
Will This Fit My Vehicle?
This BCM cloning service is compatible with a wide range of GM vehicles that use part number 13594764 or any of the interchangeable numbers listed below. Please verify your part number and vehicle model before ordering.
Interchangeable Part Numbers: 13592137, 13506935, 13506936, 13587704, 13594764
Compatible Models:
- ATS (2015-16)
- Corvette (2015)
- CTS (2015-16)
- Escalade & Escalade ESV (2015)
- Impala (2015-16)
- Sierra 1500/2500/3500 & Denali Models (2015)
- Silverado 1500/2500/3500 (2015)
- Sonic (2015-18)
- Suburban 1500 (2015)
- Tahoe (2015)
- XTS (2015)
- Yukon & Yukon XL 1500 (2015)
Frequently Asked Questions
How does the cloning service work after I order?
After you place your order, we will contact you with detailed instructions and a shipping address. You will need to send us your original BCM. Once we receive it, we perform the data transfer to the replacement unit and ship it back to you, usually within 1-2 business days.
Do I need to have my keys reprogrammed?
No. Because we are cloning your original module’s data, the replacement BCM will recognize your existing keys. This is a major benefit of our service.
What if my original BCM is completely dead or not communicating?
In most cases, even if the BCM has failed, the core data on the memory chip is still readable. If we encounter a rare situation where the data cannot be extracted, we will contact you immediately to discuss options.
Is this a simple plug-and-play installation?
Yes, for 95% of installations. Because all your vehicle’s specific data is pre-loaded, you will not need a GM scan tool for initial programming. However, as stated, some models may require a simple relearn procedure for the brake pedal sensor or airbag system if a warning light appears after installation.
Do I need to send my old BCM back as a core?
No, there is no core charge for this service. You are required to send your original BCM to us for the data cloning service, but you can keep it afterward if you wish.