Is Your GM Vehicle Experiencing Strange Electrical Issues?
The Body Control Module, or BCM, is the central nervous system for your vehicle’s electronic accessories. It doesn’t control the engine, but it manages nearly everything else: power windows, door locks, interior and exterior lighting, security system, wipers, and even the instrument cluster. When the BCM starts to fail, it can cause a cascade of confusing and unpredictable problems that can be difficult to diagnose. If your Silverado, Sierra, or other compatible GM vehicle is acting possessed, a faulty BCM is a very likely culprit.
We had a 2015 Sierra 1500 come into the shop with a list of complaints that seemed completely unrelated. The customer said his radio would sometimes turn off, the driver’s side window wouldn’t roll down, and the dome light would flicker randomly. He had already replaced the battery and checked all the fuses. After connecting our diagnostic scanner, we saw multiple communication error codes pointing to the BCM. Instead of a dozen small problems, it was one central failure. A new, programmed BCM solved every single issue at once. This is a classic case of how a failing 2015 Silverado BCM can create widespread electrical chaos.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional power windows, locks, or mirrors.
- ✔ Headlights, taillights, or interior lights staying on or not turning on at all.
- ✔ The security system or horn activating randomly.
- ✔ Wipers behaving erratically or not working.
- ✔ Inaccurate or dead gauges on the instrument panel.
- ✔ Key fob not being recognized or working intermittently.
- ✔ “Service Theft Deterrent System” or other warning messages on the dash.
The Simple, Plug-and-Play Solution
Avoid expensive dealership visits and the hassle of programming a new module from scratch. Our professional cloning service makes this repair straightforward and affordable. You simply send us your original BCM, and we transfer all the critical data—including VIN, mileage, and key programming—to a replacement unit. The module you receive back will be 100% plug-and-play. Just install it, and your vehicle’s functions will be restored without any additional programming required.
How Our BCM Programming Service Works:
- ✔ Place Your Order: Complete your purchase on our website. Please ensure your contact information is accurate.
- ✔ We Contact You: We will reach out with detailed instructions and the shipping address to send your original BCM to our facility.
- ✔ Ship Your Module: Securely package your original BCM and ship it to us.
- ✔ We Clone It: Upon arrival, our technicians will expertly clone all necessary data from your original module to the replacement unit, typically within 1-2 business days.
- ✔ We Ship It Back: We ship your new, ready-to-install BCM back to you and provide you with tracking information.
Important Post-Installation Information
While our goal is a seamless plug-and-play experience, certain vehicle systems may require a simple recalibration after the new BCM is installed. This is normal and can often be done with a high-end diagnostic tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a procedure called “Setup SDM Primary Key in BCM” is needed. This syncs the new BCM with the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure proper brake light and traction control operation.
Please consult a factory service manual or a qualified technician if you encounter these specific situations.
Guaranteed Fitment for Your 2015 Silverado BCM and More
This Body Control Module is a direct replacement for several part numbers and fits a wide range of General Motors vehicles. Please verify that your original module’s part number is on this list:
Compatible Part Numbers: 13592137, 13506935, 13506936, 13587704, 13594764
This part is confirmed to fit many 2015-2018 GM models including the Silverado, Sierra, Corvette, Impala, Tahoe, Suburban, Yukon, Escalade, CTS, ATS, XTS, and Sonic. Please check the detailed fitment list to confirm compatibility with your specific vehicle and options.
Frequently Asked Questions
What exactly is a “cloning” service?
Cloning is the process of reading the essential vehicle-specific data (like the VIN, key codes, and software settings) from your original BCM and writing it directly onto the replacement BCM. This makes the new module an exact digital copy of the old one, allowing it to work in your vehicle without needing any further programming from a dealer.
Can I drive my vehicle while my BCM is being cloned?
No. The Body Control Module is essential for many of your vehicle’s functions. Your vehicle will not be drivable once the original BCM is removed.
What if my original BCM is completely dead and can’t be read?
In most cases, even if the BCM has failed, we can still extract the necessary data from the memory chip. If for some reason your module’s data is completely corrupted and unreadable, we will contact you to discuss other options.
Is this a guaranteed fix for my vehicle’s problems?
This service corrects issues directly caused by a faulty BCM. While the symptoms listed are very common for BCM failure, it’s crucial to have your vehicle properly diagnosed. We are not responsible for misdiagnosis of the vehicle’s issue. This service is for providing a functional, programmed BCM.
Do I need to return my old BCM after I receive the new one?
No, there is no core charge for this part. You are sending us your original BCM for the data transfer service, and you will not receive it back. You can keep your original module if you wish, but it is not required.