Restore Full Electrical Function to Your GM Vehicle
Are you dealing with baffling electrical issues in your 2015 Suburban or another GM vehicle? Flickering lights, unresponsive power windows, or a security system that acts up on its own can be incredibly frustrating. As a technician with over two decades of experience, I’ve seen these exact symptoms hundreds of times, and they almost always point to a failing Body Control Module (BCM). The BCM is the central hub for your vehicle’s body electronics, and when it starts to fail, it can create a cascade of confusing problems. This isn’t just an inconvenience; it can affect vehicle safety and security.
We offer a straightforward and reliable solution. This is a replacement BCM that comes pre-programmed with the data from your vehicle’s original module. This cloning process ensures a seamless installation, eliminating the need for expensive and time-consuming dealership programming. You get a part that’s ready to install right out of the box, getting you back on the road quickly and affordably.
From the Diagnostic Bay: The Case of the Haunted SUV
A customer brought in a 2015 Yukon XL with a list of complaints that sounded like the vehicle was possessed. The radio would turn off randomly, the interior lights would pulse, and the power liftgate had a mind of its own. They had already replaced the battery and checked all the fuses. After connecting my scan tool, I saw multiple U-series communication codes, indicating a network problem. Instead of chasing ghosts in the wiring, I went straight for the BCM. A failing BCM often floods the vehicle’s data network with corrupt information, causing other modules to act erratically. By swapping in a correctly programmed BCM, all the strange electrical gremlins vanished instantly. This is a classic scenario where targeting the central controller solves a dozen smaller problems at once.
Is Your Vehicle Showing These Symptoms?
A faulty BCM can manifest in many ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that flicker, stay on, or don’t work at all.
- ✔ The security system or keyless entry failing to operate correctly.
- ✔ The radio or infotainment system randomly shutting down or not turning on.
- ✔ Instrument cluster warning lights appearing without a clear cause.
- ✔ Communication error codes (often U-codes like U0140, U0155) stored in the system.
How Our Simple Programming Service Works
Our goal is to make this repair as easy as possible. After you place your order, we will contact you with instructions to ship your original BCM to our facility. Once we receive it, our expert technicians will extract the essential vehicle-specific data and transfer it to this replacement unit. We then ship the newly programmed module back to you, typically within one business day. This process ensures all your vehicle’s original settings and key information are retained.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On most compatible trucks and SUVs like the 2015 Suburban, the BCM is located under the driver’s side of the dashboard, near the steering column.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be pressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location and securely plug in all the electrical connectors. You should hear a click as they lock into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—lights, locks, windows, radio, etc.—to confirm the repair was successful.
Important Post-Installation Information
Because this module is cloned from your original, most vehicles will not require any additional procedures. However, in some cases, you may need a professional scan tool to perform a couple of quick relearn functions:
- Airbag System Sync: If your airbag warning light is on after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure is needed to sync the systems.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor recalibration may be required to ensure proper brake light and traction control operation.
Disclaimer: We always recommend consulting a factory service manual or a qualified technician if you are unsure about any step of the process.
Will This Fit My Vehicle?
This BCM is a direct replacement for part number 13594764 and is also compatible with part numbers 13592137, 13506935, 13506936, and 13587704. It is confirmed to fit the following GM models and years:
- ATS: 2015, 2016
- Corvette: 2015
- CTS: 2015, 2016
- Escalade / Escalade ESV: 2015
- Impala: 2015-2016 (New Style)
- Sierra 1500 / 2500 / 3500 & Denali Models: 2015
- Silverado 1500 / 2500 / 3500: 2015
- Sonic: 2015-2018
- Suburban: 2015
- Tahoe: 2015
- XTS: 2015
- Yukon / Yukon XL & Denali Models: 2015
Frequently Asked Questions
Why do I need to send you my original BCM?
Your original BCM contains unique data specific to your vehicle’s VIN, security information, and optional features. By cloning this data to the replacement module, we ensure it’s a true plug-and-play solution that works perfectly with your vehicle without requiring a trip to the dealer for expensive programming.
What if my original BCM is completely dead or water damaged?
In many cases, even if the BCM is non-functional, we can still retrieve the necessary data. Please contact us before ordering if your module has significant physical or water damage so we can discuss the options.
Is this a difficult part for a DIYer to replace?
For most of the listed trucks and SUVs, the BCM is accessible under the driver’s side dash. With basic hand tools and the ability to disconnect battery and electrical connectors, it is a very manageable job for a DIY enthusiast. The most important part is that our programming service removes the most complex step: the software setup.
How long does the whole process take?
Once we receive your original module, our programming and testing process is typically completed within one business day. We then ship the replacement module back to you. Total turnaround time is primarily dependent on shipping times.
Is there a core charge?
No, there is absolutely no core charge for this service. You are welcome to keep your original module after you’ve sent it to us for data cloning.