Restore Control and End Electrical Chaos in Your Truck
Are you battling bizarre electrical issues in your 2015 GM truck or SUV? Flickering dash lights, power windows with a mind of their own, a security system that won’t cooperate, or a key fob that’s suddenly useless are all classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s comfort and convenience features, a faulty BCM can turn your reliable workhorse into a source of daily frustration. This isn’t just an annoyance; it can affect vehicle security and safety systems. Forget the expensive dealership visit and the hassle of programming. We offer a straightforward, reliable solution: a replacement BCM with a professional cloning service that makes installation truly plug-and-play.
A Technician’s Notebook: The Water-Damaged BCM
I remember a 2015 Silverado 2500 that came into the shop with a laundry list of complaints: the radio would turn on and off, the dome light wouldn’t work, and sometimes the truck wouldn’t even recognize the key. The customer had already replaced the battery, thinking it was a simple power issue. After connecting my scan tool, I saw a U0140 code—Lost Communication with Body Control Module. On these trucks, the BCM is often located under the steering column or on the firewall, areas susceptible to water intrusion from a leaky windshield seal. Sure enough, upon removal, we found clear signs of corrosion on the BCM’s circuit board. Instead of a complex and costly replacement at the dealer, we used our cloning service. We transferred the vehicle’s unique data to a new module, and the customer was back on the road the next day with all electrical functions restored. This mail-in service provides that same level of precise, effective repair directly to you.
How Our Simple Mail-In Cloning Service Works
Our process is designed to be as simple as possible. After you place your order, we’ll contact you with clear instructions to ship your original BCM to our facility. Once we receive it, our technicians will extract the essential vehicle-specific data—including key programming, VIN, and optional feature settings—and flash it directly onto this replacement module. We then ship the fully programmed, plug-and-play unit back to you. This service completely bypasses the need for expensive dealership-only diagnostic tools for programming, saving you time and money.
Is Your Truck Showing These Symptoms?
A failing BCM can cause a wide range of issues. If you’re experiencing any of the following, your Body Control Module is the likely culprit:
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights (headlights, brake lights) staying on or not turning on.
- ✔ The security system acting up, causing no-start conditions or false alarms.
- ✔ Key fobs are no longer recognized by the vehicle.
- ✔ Warning lights on the dashboard, such as the airbag or security light, illuminating for no reason.
- ✔ Diagnostic Trouble Codes (DTCs) like U0140, B1001, or other communication errors related to the BCM.
A Straightforward Guide to Your BCM Installation
Installing your newly programmed BCM is a manageable job for a DIYer with basic tools. While locations vary slightly, the process is generally similar across models.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the BCM: On most 2015 GM trucks and SUVs, the BCM is located under the driver’s side dashboard, often near the steering column or on the firewall. Consult your service manual for the exact position.
- Remove Trim Panels: You may need to remove a few plastic trim panels to gain clear access to the module.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount your new, programmed BCM in the same location and securely reconnect all the electrical harnesses. You should hear a ‘click’ as they lock into place.
- Reconnect and Test: Reinstall any trim panels you removed. Reconnect the negative battery terminal. Start the vehicle and test all body functions—lights, locks, windows, radio, etc.—to confirm the repair.
Important Notes for After Installation
Our cloning service handles the primary programming, but some vehicle systems may require a ‘handshake’ with the new BCM. Please be aware of the following potential procedures:
- Airbag System Sync: If your airbag warning light is on after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool and syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure correct brake light and traction control operation.
- No Core Charge: You’ve already sent us your module for cloning, so there is no core charge or need to return anything else.
Disclaimer: Vehicle systems vary. Always consult a factory service manual or a qualified technician if you are unsure about any step.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 13592137, 13506935, 13506936, 13587704, and 13594764. It is guaranteed to fit the following makes and models:
- 2015-2016 ATS
- 2015-2016 CTS
- 2015 Corvette
- 2015 Escalade & Escalade ESV
- 2015-2016 Impala (New Style)
- 2015-2018 Sonic
- 2015 XTS
- 2015 Silverado 1500 / 2500 / 3500
- 2015 Sierra 1500 / 2500 / 3500
- 2015 Sierra Denali 1500 / 2500 / 3500
- 2015 Suburban 1500
- 2015 Tahoe
- 2015 Yukon & Yukon XL 1500
Frequently Asked Questions
How does the mail-in cloning service work?
After you purchase, we’ll email you a shipping label and instructions to send your original BCM to us. We copy its unique data to the replacement BCM and ship it back to you, usually within one business day of receiving it.
Will I need to program this 2015 Sierra 3500 BCM?
No. Our cloning service means the module arrives pre-programmed and ready for installation. It’s a true plug-and-play solution that saves you a trip to the dealer.
What if my original BCM is completely dead or water damaged?
In most cases, even with significant damage, we can still recover the necessary data for cloning. If we are unable to retrieve the data for any reason, we will contact you to discuss options and provide a full refund.
Where is the BCM located on my 2015 GM truck?
Typically, it’s found under the driver’s side dashboard, attached to the firewall or near the steering column. The exact location can vary, so a quick check of a service manual for your specific model is recommended.
Do I need to do anything after installing the new module?
In some cases, an airbag system sync or a brake pedal position relearn may be required if you see a related warning light. These are simple procedures for any shop with a professional scan tool.