Are you chasing electrical gremlins in your 2015 Silverado? Flickering dash lights, power windows with a mind of their own, or a security system that randomly triggers can be maddening. As a technician with over two decades of experience, I’ve seen these exact issues hundreds of times, and they almost always point to one culprit: a failing Body Control Module (BCM). The BCM is the central command center for your truck’s body electronics, and when it starts to fail, it creates chaos.
Forget the dealership headache—the expensive diagnostic fees, the cost of a new module, and the mandatory programming charges that can easily double the price. We offer a straightforward, cost-effective solution. This is a fully tested, replacement BCM that comes ready for installation thanks to our professional cloning service. Simply send us your original BCM, and we’ll transfer all of its critical data—including VIN, mileage, and key information—to this replacement unit. The result? A module that is truly plug-and-play, getting you back on the road without any dealer intervention.
A Technician’s Notebook: The Case of the Haunted Silverado
A customer brought in a 2015 Silverado 1500 with a list of bizarre symptoms: the radio would shut off intermittently, the driver’s side window wouldn’t respond, and the horn had honked on its own twice. They’d been to two other shops that couldn’t find the issue because no consistent trouble codes were stored, aside from a few random U-codes for lost communication. This is a classic BCM failure pattern. The internal processors and solder joints degrade, causing unpredictable, sporadic failures. We confirmed the diagnosis, performed our cloning service onto a replacement BCM, and the truck’s electrical system was stable and fully functional again. This service saved the customer from a potential $1000+ bill at the dealership.
Is Your Truck Showing These Symptoms?
- ✔ Erratic or non-functional power windows, locks, or mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security system or alarm randomly activating.
- ✔ Inaccurate or dead gauges on the instrument cluster.
- ✔ “Service Stability System” or other warning messages appearing on the dash.
- ✔ Communication-related Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or other U-codes.
- ✔ Intermittent no-start condition where the engine cranks but won’t fire up.
Your Straightforward BCM Swap Guide
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system capacitors to discharge.
- ✔ Locate the Module: On most 2015 Silverado and Sierra models, the BCM is located under the driver’s side of the dashboard, near the steering column.
- ✔ Careful Removal: Gently unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- ✔ Install the Replacement: Once you receive the programmed module back from us, simply bolt it in place, reconnect the electrical connectors, and re-attach your battery terminal.
Important Post-Installation Information
While our cloning service makes this a plug-and-play process, some vehicle systems may require a quick handshake to recognize the new module. Please be aware of the following potential procedures:
- Airbag System Sync: If your airbag warning light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the airbag system with the BCM and 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 flawless operation of the brake lights and traction control system.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a certified technician if you are unsure about any step.
Will This Fit My Vehicle?
This BCM is a direct replacement for part numbers 13592137, 13506935, 13506936, 13587704, and 13594764. It is guaranteed to fit the following GM models and years:
- Cadillac ATS: 2015, 2016
- Cadillac CTS: 2015, 2016
- Cadillac Escalade / ESV: 2015
- Cadillac XTS: 2015
- Chevrolet Corvette: 2015
- Chevrolet Impala: 2015-2016 (New Style)
- Chevrolet Silverado 1500 / 2500 / 3500: 2015
- Chevrolet Sonic: 2015-2018
- Chevrolet Suburban 1500: 2015
- Chevrolet Tahoe: 2015
- GMC Sierra 1500 / 2500 / 3500: 2015
- GMC Sierra Denali 1500 / 2500 / 3500: 2015
- GMC Yukon / Yukon XL 1500: 2015
Frequently Asked Questions
Frequently Asked Questions
How does the programming service work?
After you place your order, we’ll provide instructions for you to ship your original BCM to us. We then use specialized equipment to read the unique data from your module and write it onto the replacement unit. This ensures all your vehicle’s specific settings and security information are preserved.
How long does the process take?
We perform the programming service the same day we receive your original module. We then ship the programmed replacement back to you, and you will receive a tracking number at that time. Total turnaround time is primarily dependent on shipping speeds.
Do I need to send my original BCM if it’s completely dead?
In most cases, even if the BCM is failing, we can still extract the necessary data. If your module has suffered extreme physical damage (e.g., from fire or a severe collision), please contact us first to discuss options.
Is this really plug-and-play?
Yes. Because we clone your original data, the replacement module is recognized by your vehicle’s other computers, eliminating the need for expensive dealer-only programming tools for the initial setup.
Do I have to pay a core charge or send my old part back afterward?
No. There is no core charge for this item. We need your original module to perform the programming service, but you are not required to return it after receiving the replacement.
What if the airbag light comes on after I install it?
This is an uncommon but known possibility. It simply means the airbag system needs to be electronically re-synced to the new BCM. This is a simple procedure called ‘Setup SDM Primary Key in BCM’ that can be performed by any professional shop with a high-level diagnostic tool.