Is Your GM Truck Plagued by Electrical Gremlins?
If you’re dealing with flickering lights, malfunctioning power windows, a dead instrument cluster, or a vehicle that refuses to start, the culprit is often a failing Body Control Module (BCM). The BCM is the central command center for your truck’s body electronics, coordinating everything from your interior lights and door locks to the security system. When it fails, it can create a cascade of confusing and frustrating problems. This listing is for a replacement BCM, part number 13594692, that arrives at your door ready for installation, eliminating the need for an expensive trip to the dealership.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system light flashing, preventing the engine from starting.
- ✔ The radio or infotainment system behaving strangely or not turning on.
- ✔ False warnings appearing on the instrument cluster (e.g., “Service StabiliTrak”).
- ✔ Rapid battery drain while the vehicle is off.
- ✔ Communication errors when trying to scan the vehicle with a diagnostic tool.
From the Diagnostic Bay
We had a 2015 Silverado 2500 in the shop that was driving its owner crazy. The dome light would flicker randomly, the radio would sometimes stay on after the key was removed, and occasionally, the truck just wouldn’t start. The owner had already replaced the battery and checked all the main grounds. After hooking up our professional scan tool, we saw multiple communication loss codes with various modules. Instead of chasing ghosts and replacing a dozen different parts, we went straight to the network hub: the BCM. A quick test confirmed it was failing internally, causing data corruption on the CAN bus. A pre-programmed BCM like this one solved every single issue in one go, saving the customer hundreds in diagnostic time and unnecessary parts.
How Our Simple Programming Service Works
Getting your truck back on the road is straightforward. This isn’t just a part; it’s a complete solution. We perform a data transfer service from your original BCM to this replacement unit. This process, often called cloning, copies all the vital, vehicle-specific information—including VIN, mileage, and security keys—to the new module. The result is a true plug-and-play component that your vehicle will accept instantly, without any additional programming.
- Place Your Order: Purchase this BCM. We will then contact you with shipping instructions.
- Ship Us Your Original BCM: Carefully package and send your original, faulty BCM to our facility.
- We Transfer the Data: Our technicians will professionally transfer all necessary data from your old module to the replacement unit.
- Receive Your Ready-to-Install BCM: We ship the programmed BCM back to you, typically within 24-48 hours of receiving your original. Installation is as simple as swapping the modules.
Post-Installation Checks for Your 2015 Silverado BCM
After installing your newly programmed 2015 Silverado BCM, a couple of system relearns may be necessary to ensure full functionality. These are standard procedures after a BCM replacement.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a procedure called “Setup SDM Primary Key in BCM” must be performed. This requires a professional-grade scan tool and syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: To ensure your brake lights and traction control system function correctly, a brake pedal position sensor recalibration might be needed. This is also performed with a compatible diagnostic tool.
Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Frequently Asked Questions
What is a BCM cloning service?
Cloning is a data transfer process where we copy the exact configuration, VIN, and security information from your original BCM to the replacement unit. This makes the replacement module a perfect electronic match for your vehicle, avoiding the need for dealer programming.
Will this fix my no-start problem?
If your no-start issue is caused by the BCM failing to recognize your key or activating the anti-theft system (often indicated by a flashing security light), then this programmed BCM is the correct solution.
How long does the programming service take?
We typically complete the data transfer and ship your replacement BCM back out within one to two business days of receiving your original module.
Do I need to send my key or any other parts?
No, we only need your original Body Control Module. All the necessary key and security data is stored within the BCM itself, which we will transfer to the new unit.
Is this part compatible with other vehicles?
Yes, this BCM, part number 13594692, fits a wide range of GM vehicles including various years of the Sierra, Suburban, Tahoe, Corvette, Impala, and Escalade. Please check the detailed fitment list on this page to confirm compatibility with your specific model.