Is Your 2015 Sierra 1500 Experiencing Strange Electrical Problems?
The Body Control Module, or BCM, is the central command center for your truck’s body electronics. It’s not just a fuse box; it’s an intelligent computer that manages everything from your power windows and door locks to your interior lights, security system, and instrument cluster. When the BCM starts to fail, it can cause a cascade of confusing and frustrating electrical issues that can be difficult to diagnose. If your Sierra is acting possessed, a faulty BCM is a likely culprit.
Common Symptoms of a Failing BCM
A failing Body Control Module can manifest in numerous ways. If you’re noticing any of the following issues, it’s a strong indicator that your BCM may need replacement:
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Headlights, taillights, or interior lights behaving erratically (staying on, not turning on, or flickering).
- ✔ The security system engaging randomly or the alarm sounding for no reason.
- ✔ Inaccurate or non-working gauges on your instrument panel.
- ✔ The radio or infotainment system turning on or off by itself.
- ✔ A parasitic battery drain that leaves you with a dead battery overnight.
- ✔ A no-start condition where the engine cranks but won’t fire up due to security system conflicts.
The Simple, No-Dealer-Programming Solution
Replacing a BCM isn’t as simple as swapping parts. Modern modules are coded specifically to your vehicle’s VIN and options. Traditionally, this meant a costly trip to the dealership for installation and programming. Our unique cloning service eliminates that hassle entirely. We transfer the critical data from your original BCM directly onto this replacement unit, making it a true plug-and-play solution.
How It Works:
- Place Your Order: Complete your purchase through our secure checkout.
- We’ll Contact You: Our team will reach out with simple instructions and a shipping address for you to send your original BCM to us.
- Send Us Your Module: Carefully package and ship your original BCM to our facility.
- We Clone the Data: Upon arrival, our technicians will perform a full data transfer from your old module to the replacement unit.
- Receive Your Ready-to-Install BCM: We ship the programmed module back to you, ready for immediate installation. No further programming is required.
Why Our 2015 Sierra 1500 BCM Service is the Right Choice
Choosing our service for your 2015 Sierra 1500 BCM means you’re getting more than just a part; you’re getting a complete, hassle-free solution. By cloning your original module’s data, we ensure that your vehicle’s specific configuration, key fob information, and mileage are all preserved. This avoids compatibility issues and the need for expensive diagnostic tools or dealership visits. This module is a quality, inspected component that will restore your truck’s functionality.
Post-Installation Procedures
While our programming makes the BCM plug-and-play, some vehicle systems may require a simple recalibration after the new module is connected. These are standard procedures that can sometimes be necessary after the vehicle’s electrical system has been disconnected.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This syncs the airbag system with the new BCM and requires a professional-grade scan tool. This is only required if the light is on.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure proper operation of the brake lights and traction control system.
Please note: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Verified Fitment & Part Numbers
This BCM is a direct replacement for part number 13594764 and is also compatible with the following interchangeable part numbers: 13592137, 13506935, 13506936, and 13587704. It fits a wide range of 2015 and newer GM vehicles, including:
- 2015 GMC Sierra 1500 / 2500 / 3500
- 2015 GMC Sierra Denali 1500 / 2500 / 3500
- 2015 Chevrolet Silverado 1500 / 2500 / 3500
- 2015 Chevrolet Suburban 1500 & Tahoe
- 2015 GMC Yukon & Yukon XL 1500
- 2015 Cadillac Escalade & Escalade ESV
- 2015-2016 Cadillac ATS, CTS, XTS
- 2015-2016 Chevrolet Impala (New Style)
- 2015 Chevrolet Corvette
- 2015-2018 Chevrolet Sonic
Frequently Asked Questions
What exactly does the Body Control Module (BCM) do?
The BCM is a computer that acts as the central hub for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, the security system, wipers, and instrument panel gauges.
How does your programming/cloning service work?
After you place your order, you will ship your original BCM to us. We then use specialized equipment to extract the vehicle-specific data (like VIN, mileage, and key information) and flash it onto the replacement module. We then ship the newly programmed module back to you, ready for installation.
Is this a plug-and-play solution?
Yes! Because we clone the data from your original module, the replacement BCM will be plug-and-play. You will not need to take your truck to a dealership for expensive programming after installation.
What are the most common signs my Sierra’s BCM is failing?
Common symptoms include erratic behavior of lights, power locks, and windows; a security system that acts up; a parasitic battery drain; or a no-start condition. If multiple, unrelated electrical systems are failing, the BCM is a prime suspect.
Where is the BCM located on a 2015 GMC Sierra 1500?
On the 2015 Sierra 1500, the BCM is typically located under the driver’s side of the dashboard, near the steering column.
Do I need to send my keys with my old BCM?
No, you do not need to send your keys. All the necessary security information is stored within the BCM itself, which we will transfer to the new unit. Your existing keys will work seamlessly upon installation.