Is Your 2015 GM Truck Experiencing Electrical Gremlins?
If your 2015 Sierra Denali 3500, Silverado, Tahoe, or other compatible GM vehicle is suddenly acting possessed, the root cause is often a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, managing everything from power windows and door locks to the security system and interior lighting. When it begins to fail, it can create a cascade of bizarre, frustrating, and seemingly unrelated electrical issues that can be difficult to diagnose.
From the Diagnostic Bay
We recently had a 2015 Silverado 2500 towed to our shop with a ‘no-crank’ condition. The owner had already replaced the battery and starter to no avail. A quick scan revealed multiple communication loss codes (U-codes) pointing to the BCM. After verifying the module had proper power and ground, we confirmed it had failed internally. Instead of a costly trip to the dealer for a new module and programming, we provided a cloned BCM. The customer simply installed the replacement module, and the truck started on the first try, saving them hundreds in diagnostic fees and programming costs.
Common Symptoms of a Failing BCM
A faulty BCM can manifest in numerous ways. If you’re noticing any of the following issues, it’s a strong indicator that your Body Control Module needs attention:
- ✔ Intermittent or completely non-functional power windows, door locks, or mirrors.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not turning on).
- ✔ The security or anti-theft system engaging randomly, preventing the vehicle from starting.
- ✔ False warnings appearing on the instrument cluster, such as ‘Service 4WD’ or ‘Service Airbag’.
- ✔ HVAC (climate control) system not responding to commands or blowing air at incorrect temperatures.
- ✔ Key fobs not working or being recognized by the vehicle.
- ✔ Communication errors stored in the vehicle’s diagnostic system.
The Simple, Plug-and-Play Solution: Our BCM Cloning Service
Forget about expensive dealership visits, towing fees, and the hassle of programming a new module. Our professional cloning service provides a reliable and cost-effective solution. We take a replacement BCM and transfer the exact software, VIN, and security information from your original, failing module. The result is a perfect digital twin of your original unit. This means the replacement 2015 Sierra BCM arrives at your door ready for a true plug-and-play installation—no further programming or calibration is required.
How Our BCM Programming Service Works
- ✔ Place Your Order: Complete your purchase through our secure checkout.
- ✔ We’ll Contact You: We will reach out to you using the contact information on your order to coordinate the next steps and provide the shipping address for your original module.
- ✔ Ship Your Original BCM: Carefully package and send us your original Body Control Module.
Important Post-Installation Information
While our goal is a seamless installation, some GM vehicles may require minor electronic handshakes after a new module is installed. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure may be necessary. This requires a professional-grade scan tool to sync the new BCM with the airbag system. This is only needed if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be needed to ensure proper brake light operation and traction control functionality.
Always consult a factory service manual or a qualified technician for vehicle-specific guidance.
Guaranteed Fitment for Part Number 13592137
This service is for BCM part number 13592137 and is a direct replacement for the following alternate part numbers: 13506935, 13506936, 13587704, and 13594764. It is compatible with a wide range of 2015 and select 2016-2018 GM cars, trucks, and SUVs, including the Corvette, Impala, Sierra, Silverado, Suburban, Tahoe, Yukon, Escalade, XTS, ATS, CTS, and Sonic. Please verify your part number to ensure compatibility.
Frequently Asked Questions
What exactly does a Body Control Module do?
The BCM is a computer that acts as the central hub for your vehicle’s body-related electronic functions. It reads inputs from switches (like your window switch or headlight switch) and sensors, and then sends commands to operate various accessories like lights, locks, windows, wipers, and the security system.
Why is cloning my original BCM the best option?
Cloning transfers your vehicle’s specific Vehicle Identification Number (VIN), security data, and option configuration to the replacement module. This makes the installation plug-and-play, avoiding the need for expensive and complex programming at a dealership, which is required for a brand new BCM.
Is this a guaranteed plug-and-play solution?
Yes, in over 99% of cases. By cloning your original data, the replacement module is electronically identical to the one being replaced. In rare instances, as noted above, a simple relearn procedure like an airbag sync may be required, which can be performed by most automotive shops.
How long does the cloning service take?
Once we receive your original BCM, our technicians typically complete the programming and prepare it for return shipment within 1-2 business days.
What if I don’t see my exact model listed in the description?
The most important thing is to match the part number. If your original BCM has part number 13592137 or one of the listed interchanges, this service is compatible with your vehicle, even if your specific model isn’t mentioned.