Restore Your Truck’s Functionality and Peace of Mind
Is your 2015 GMC Sierra or other GM vehicle acting possessed? Flickering lights, windows with a mind of their own, or a security system that randomly prevents you from starting the engine are all classic signs of a failing Body Control Module (BCM). The BCM is the nerve center for your vehicle’s comfort and convenience features. When it fails, it can cause a cascade of frustrating and unpredictable electrical problems. Instead of facing a costly bill and long wait times at the dealership, our plug-and-play solution gets you back on the road quickly and affordably.
We offer a professionally programmed 2015 Sierra Body Control Module that is a direct-fit replacement. The process is simple: you send us your original BCM, we transfer all the critical vehicle-specific data to this replacement unit, and then we ship it right back to you. This cloning service means the replacement module is ready to install right out of the box, with no additional programming required. It’s the most efficient way to solve complex BCM issues.
From the Diagnostic Bay: The Case of the Erratic Escalade
I remember a customer bringing in a 2015 Escalade with a laundry list of bizarre symptoms. The radio would change stations on its own, the dome light would stay on, and the power liftgate worked only intermittently. They had already replaced the battery and checked all the fuses. After connecting my scan tool, I found multiple ‘U’ codes, specifically U0140 (Lost Communication With Body Control Module). This pointed directly to a BCM failure. Instead of a new, unprogrammed module from the dealer which would require hours of setup, we used a service just like this. We sent the original BCM for cloning, and two days later, the replacement arrived. The installation took less than 30 minutes, and every single electrical gremlin was gone. The customer was thrilled to have their luxury SUV back to normal without the dealership price tag.
Is Your Vehicle Showing These Symptoms?
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ Interior or exterior lights flickering, staying on, or not turning on at all.
- ✔ The anti-theft or security system light is on, preventing the engine from starting.
- ✔ False warnings on the instrument cluster (e.g., ‘Door Ajar’).
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or B1001.
- ✔ Inconsistent operation of the horn, wipers, or remote keyless entry.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the BCM: On most 2015 Sierra and Silverado trucks, the BCM is located under the steering column, on the driver’s side of the dashboard. For other models, its location can vary (e.g., LH dash, on the firewall). Always verify the location for your specific vehicle.
- ✔ Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the original BCM from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location. Reconnect all electrical connectors firmly until they click into place.
- ✔ Reconnect Power: Reattach the negative battery terminal and tighten it securely.
- ✔ Test All Functions: Start the vehicle and test all body functions: lights, locks, windows, radio, wipers, etc., to confirm the repair was successful.
Important Post-Installation Information
While our cloning service makes this a near plug-and-play repair, some vehicle systems may require a recalibration after the new 2015 Sierra Body Control Module is installed. Please be aware of the following:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool must be used to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the airbag system with the new BCM. This is only necessary if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be needed to ensure the brake lights and traction control system function as intended.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Verified Vehicle Compatibility
This module is a direct replacement for part number 13587704 and is interchangeable with part numbers 13592137, 13506935, 13506936, and 13594764. It is confirmed to fit the following GM vehicles:
- ATS: 2015, 2016
- Corvette: 2015
- CTS: 2015, 2016
- Escalade / Escalade ESV: 2015
- Impala: 2015-2016 (New Style)
- Sierra 1500 / Denali 1500: 2015
- Sierra 2500 / 3500 / Denali: 2015
- Silverado 1500 / 2500 / 3500: 2015
- Sonic: 2015-2018
- Suburban 1500: 2015
- Tahoe: 2015
- XTS: 2015
- Yukon / Yukon XL 1500: 2015
Frequently Asked Questions
Frequently Asked Questions
2015 Sierra Body Control Module
Is this a guaranteed fix for my vehicle’s electrical problems?
If your vehicle’s symptoms and diagnostic codes point to a faulty BCM, this is a highly reliable and effective solution. As with any auto repair, proper diagnosis is key. This part will fix issues caused by a failed .