Restore Your Truck’s Electrical System with a Pre-Programmed BCM
Are you dealing with baffling electrical issues in your 2015 GMC Sierra or other compatible GM vehicle? Flickering lights, malfunctioning power windows, random warning messages, or a vehicle that won’t start can often be traced back to a single culprit: a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, when the BCM goes bad, it can create a cascade of frustrating and seemingly unrelated problems. This isn’t just an inconvenience; it can be a serious safety concern.
Forget the expensive trip to the dealership and the days of downtime. We offer a streamlined, reliable solution. This listing is for a replacement BCM that comes fully programmed with your vehicle’s specific data. By cloning the information from your original module, we provide a true plug-and-play component. This process ensures all your vehicle’s options and security information are retained, eliminating the need for costly and complex programming with dealer-specific tools.
A Technician’s Notebook: The Case of the Haunted Sierra
I remember a 2015 Sierra 1500 rolling into my bay last month. The owner was at his wit’s end. The dashboard would light up like a Christmas tree intermittently, the radio would cut out, and sometimes the power door locks would cycle on their own. He’d already replaced the battery and checked the main grounds. After connecting my diagnostic scanner, I saw a flurry of U-codes (communication errors) pointing to a network issue. The tell-tale sign was the BCM failing to communicate consistently. By swapping in a known-good, programmed BCM, all the gremlins vanished. This is a classic failure I’ve diagnosed hundreds of times; the internal processors of the BCM simply wear out, leading to this kind of electrical chaos. Our cloning service is designed to be the definitive fix for this exact scenario.
Is Your GM Vehicle Showing These Symptoms?
- ✔ Erratic or non-functional interior/exterior lights (headlights, dome lights, etc.)
- ✔ Power windows, mirrors, or door locks operating intermittently or not at all
- ✔ The security system acting up or preventing the engine from starting
- ✔ False warning messages on the instrument cluster (e.g., “Service Stabilitrak,” “Service Airbag”)
- ✔ Diagnostic trouble codes (DTCs) related to communication, such as U0100, U0140, or other U-codes
- ✔ Horn or windshield wipers activating unexpectedly
- ✔ Complete loss of power to certain accessories
How Our Simple Mail-In Programming Service Works
Getting your vehicle back to perfect working order is a straightforward process. After you purchase this service, we will contact you with clear instructions for shipping your original BCM to our facility. Once we receive it, our expert technicians will transfer all the critical data to this replacement module. We then ship the fully programmed, ready-to-install BCM back to you, typically within 24-48 hours of receiving your original part. You’ll get a tracking number so you know exactly when to expect it.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- ✔ Locate Your BCM: On the 2015 Sierra and many other listed trucks/SUVs, the BCM is located under the steering column, often behind a lower dash panel. Consult a service manual for your specific model’s location if you’re unsure.
- ✔ Remove the Original Module: Carefully disconnect the electrical connectors and unbolt the module from its mounting bracket.
- ✔ Ship It To Us: Package your original BCM securely and ship it to the address we provide.
- ✔ Install the Replacement: Once you receive the programmed module from us, simply mount it in place and reconnect the electrical connectors.
- ✔ Power Up and Test: Reconnect your battery terminal. Start the vehicle and test all body functions—lights, windows, locks, wipers, etc.—to confirm the repair.
Important Post-Installation Information
While our programming makes this a plug-and-play repair, some GM vehicles may require a simple relearn procedure after the new BCM is installed. This is normal and can often be done with a high-quality bidirectional scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the systems. This is only required if the light is on.
- 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.
- No Core Charge: You are not required to send your old part back to us after the job is done. Keep your original module.
Disclaimer: Vehicle systems can vary. We always recommend consulting a factory service manual or a qualified technician if you are uncertain about any step.
Will This Fit My Vehicle?
This BCM is a direct replacement for several part numbers and fits a wide range of General Motors vehicles. Please verify that your vehicle and original part number are on this list.
Compatible Part Numbers: 13592137, 13506935, 13506936, 13587704, 13594764
Fitment Includes (but not limited to):
- 2015 Cadillac ATS, CTS, XTS, Escalade, Escalade ESV
- 2015 Chevrolet Corvette, Impala, Silverado 1500/2500/3500, Suburban 1500, Tahoe
- 2015-2018 Chevrolet Sonic
- 2015 GMC Sierra 1500/2500/3500, Sierra Denali 1500/2500/3500, Yukon, Yukon XL 1500
Please refer to the detailed fitment list in the product description for specific options and locations.
Frequently Asked Questions
How exactly does the mail-in programming service work?
After you place your order, we will email you detailed instructions and our shipping address. You send us your original BCM. We then clone its data onto this replacement BCM and ship it back to you. The replacement you receive is plug-and-play, with no further programming needed.
Will I have to take my truck to the dealer for programming?
No. The entire purpose of our service is to handle the programming for you. This saves you the time, cost, and hassle of a dealership visit. The module you receive from us will be ready to install right out of the box.
What if my airbag light turns on after I install the new BCM?
This is an uncommon but possible scenario. It means the new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). A professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure, which resolves the issue.
Is there a core charge for this part?
No, there is no core charge. We only need your original module to perform the data transfer service. You can keep your original module after the service is complete.
How can I find the part number on my original BCM?
The part number is printed on a white label affixed to the BCM’s housing. You will need to remove the module from the vehicle to see this label clearly. Matching the part number is the best way to ensure compatibility.
How long does the entire process take?
We typically program and ship your replacement module within one business day of receiving your original BCM. The total time will depend on the shipping speed you choose to send your module to us and for us to return it to you.