Is Your 2015 Sierra 3500 Plagued by Electrical Gremlins?
If you’re dealing with flickering lights, malfunctioning power windows, a security system that has a mind of its own, or even a no-start condition, the culprit is often the Body Control Module (BCM). The BCM is the central nervous system for your truck’s body electronics, managing everything from interior lighting and door locks to the anti-theft system. When it fails, it can create a cascade of confusing and frustrating problems that can be difficult to diagnose.
From the Diagnostic Bay
We recently had a 2015 Sierra 2500 in the shop with a bizarre set of symptoms. The radio would turn on and off randomly, the driver’s side window wouldn’t work, and the dome lights would stay on, draining the battery overnight. The owner had already replaced the battery and checked all the fuses. A full diagnostic scan showed multiple communication errors pointing towards the BCM. Instead of a costly trip to the dealership for a new module and programming, we used our cloning service. We transferred the data from his faulty BCM to one of our replacement units. After a simple plug-in installation, every single electrical issue was resolved. The truck was back to perfect working order without any additional programming fees or dealer hassle.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights (headlights, taillights, dome lights).
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Vehicle’s security system or keyless entry failing.
- ✔ Warning lights on the dashboard, such as the airbag or security light.
- ✔ Intermittent no-start or no-crank conditions.
- ✔ Communication issues with diagnostic scan tools.
The Simple, Plug-and-Play Solution: A Programmed 2015 Sierra 3500 BCM
Don’t let a faulty BCM keep your truck off the road. Our professional cloning service makes replacement simple and affordable. Forget about expensive dealership visits, towing fees, and the hassle of programming a new module from scratch. We transfer all the critical data from your original BCM—including the VIN, mileage, and key information—directly onto a replacement unit. The result is a true plug-and-play module that is ready for installation the moment you receive it.
How Our Cloning Service Works:
- ✔ Place Your Order: Purchase this BCM service.
- ✔ Ship Us Your Module: We will contact you with simple instructions for shipping your original BCM to our facility.
- ✔ We Clone Your Data: Our technicians will professionally transfer all the necessary data from your original module to the replacement unit.
- ✔ Receive Your Ready-to-Install BCM: We ship the programmed replacement BCM back to you. Simply install it, and you’re back on the road!
Guaranteed Compatibility
This Body Control Module is a direct replacement for the following part numbers. Please ensure your module’s part number is on this list for guaranteed compatibility.
Part Numbers: 13592137, 13506935, 13506936, 13587704, 13594764
This module is compatible with a wide range of 2015 and 2016 GM vehicles, including the GMC Sierra, Chevrolet Silverado, Cadillac Escalade, Corvette, and more. Please refer to the detailed fitment list to confirm it matches your specific vehicle.
Important Post-Installation Information
While our BCMs are designed to be plug-and-play, some vehicle systems may require a recalibration or sync procedure after installation. These are simple procedures that can be performed with a professional scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary to sync the systems. This is only required if the light is on.
- Brake Pedal Position Relearn: In some cases, a brake pedal position sensor recalibration may be needed to ensure proper brake light and traction control functionality.
Always consult a factory service manual or a qualified technician for specific procedures related to your vehicle.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that controls and monitors a wide range of electronic accessories not related to the engine, such as power windows, locks, lights, wipers, and the security system.
Why is this cloning service better than buying a used BCM?
A standard used BCM from a junkyard is programmed to a different vehicle. It will not work in your truck without being reprogrammed by a dealer, which is costly. Our service clones your vehicle’s specific data, making the replacement module a true plug-and-play solution.
How long does the programming service take?
Once we receive your original BCM, the cloning process is typically completed and shipped back out within 1-2 business days. We will provide you with tracking information as soon as it ships.
Do I need to do any programming after I install it?
No, the main programming is already done. However, as noted, some vehicles may require a simple relearn procedure for the airbag system or brake pedal position sensor if you experience a warning light after installation. This requires a professional scan tool.
Is this a guaranteed fix for my vehicle’s problems?
This service corrects issues directly caused by a faulty BCM. It’s crucial to properly diagnose the problem to ensure the BCM is the root cause. If you’re experiencing the common symptoms listed, a failing BCM is the most likely culprit.