Is Your 2015 Sierra Plagued by Electrical Gremlins?
The Body Control Module (BCM) is the central command center for your truck’s body electronics. It manages a vast array of functions, from power windows and door locks to the security system and interior lighting. When the BCM begins to fail, it can create a cascade of confusing and frustrating issues that can be difficult to diagnose. If your truck is acting possessed, a faulty BCM is a likely culprit.
From the Diagnostic Bay
We had a 2015 Sierra 1500 in the shop that was driving the owner crazy. The dome lights would flicker randomly, the radio would sometimes not turn on, and the key fob worked intermittently. The biggest issue was a parasitic battery drain that left him stranded twice. After checking all the usual suspects, we traced the drain back to the BCM, which wasn’t allowing other modules to go to ‘sleep’ mode. Replacing it with a pre-programmed unit like this one solved every single issue instantly, saving the customer from an expensive and lengthy diagnostic process at the dealership.
Common Symptoms of a Failing BCM
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights (headlights, taillights, dome lights) staying on, flickering, or not working.
- ✔ Instrument cluster displaying incorrect information or warning lights (like ‘Service Stability System’).
- ✔ Key fob not being recognized, or the anti-theft system acting up.
- ✔ Wipers activating on their own or not responding to controls.
- ✔ Intermittent no-start conditions where the engine cranks but won’t fire.
- ✔ Unexplained battery drain that kills the battery overnight.
The Simple, Plug-and-Play Solution: Our Programming Service
Replacing a BCM isn’t as simple as swapping the part. The module is coded specifically to your truck’s VIN and its unique set of options. A new or used module from a dealer or junkyard will not work without extensive, specialized programming. Our service eliminates that hassle entirely. This listing is for a replacement BCM and a mail-in programming service. Here’s how it works:
- Purchase this service: Complete your order and ensure your contact information is up-to-date.
- We Contact You: Our team will reach out with simple instructions and a shipping address for you to send your original BCM to us.
- We Clone Your Data: Once we receive your original module, our technicians will perform a full data transfer to the replacement unit. This copies your VIN, mileage, key data, and all vehicle-specific settings.
- We Ship It Back: We ship the fully programmed, plug-and-play replacement BCM back to you. You’ll receive tracking information as soon as it’s on its way.
The result is a replacement module that is 100% ready for installation. No trips to the dealer, no expensive programming fees. Just install the module, and your truck’s electronics will be back to normal.
Important Post-Installation Information
While our goal is a seamless installation, some GM vehicles may require a simple relearn procedure after the new module is installed. Please be aware of the following:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary. This requires a professional-grade scan tool to sync the airbag system with the new BCM and clear the light. This is only required if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be needed to ensure correct brake light operation and traction control functionality.
This Programmed 2015 Sierra BCM Fits The Following Part Numbers:
This module is a direct replacement for part numbers: 13592137, 13506935, 13506936, 13587704, and 13594764. It is compatible with a wide range of 2015 and newer GM vehicles, including:
- 2015 GMC Sierra 1500, 2500, 3500 & Denali Models
- 2015 Chevrolet Silverado 1500, 2500, 3500
- 2015 Chevrolet Suburban & Tahoe
- 2015 GMC Yukon & Yukon XL
- 2015 Cadillac Escalade, Escalade ESV
- And many more models as listed in the fitment chart. Please verify your part number before ordering.
Frequently Asked Questions
Why does my BCM need to be programmed?
The BCM is the security hub of your vehicle. It’s programmed with your specific Vehicle Identification Number (VIN), key fob data, and equipment options. Without this data, a replacement module won’t communicate with other computers in the truck, resulting in a no-start condition or malfunctioning features.
What is the process for this programming service?
After you place your order, we will contact you with instructions to ship your original BCM to our facility. We then extract the data from your module and flash it onto the replacement unit. We then ship the ready-to-install module back to you.
Is this a true plug-and-play solution?
Yes, in 99% of cases. Because we transfer all the original data, the vehicle will recognize the replacement module as its own. This eliminates the need for dealer programming. In rare cases, a minor relearn procedure like for the airbag or brake pedal sensor may be needed, as noted above.
How long does the service take?
We typically program and ship the replacement module within 1-2 business days of receiving your original BCM. Return shipping time will depend on your location.
Do I need to send my keys?
No. Since we are cloning all the data from your original module, including the key information, your existing keys will work perfectly with the replacement BCM upon installation.