Restore Your Vehicle’s Brain without the Dealership Headache
If you’re dealing with bizarre electrical issues in your Corvette, Sierra, or other compatible GM vehicle—like power windows with a mind of their own, flickering dash lights, or a car that refuses to start—you’ve likely met the frustrating reality of a failing Body Control Module (BCM). As the central command for your vehicle’s comfort and security features, a faulty BCM can turn your daily drive into a nightmare. The dealership solution often involves expensive diagnostics, high-priced parts, and mandatory programming fees. We offer a smarter, more direct solution.
This is a replacement BCM that comes fully programmed using the data from your original module. The process is simple: after your purchase, we’ll provide instructions for you to send us your existing BCM. Our expert technicians will then transfer all the critical vehicle-specific data—including VIN, mileage, and key information—to this replacement unit. We ship it back to you, ready for a straightforward installation. You get a plug-and-play fix without the need for a tow truck or a trip to the dealer. Plus, there’s no core charge, so you can keep your original module.
A Technician’s Notebook: The Case of the Ghostly Corvette
A customer brought in a 2015 Corvette with a list of symptoms that sounded like something from a horror movie. The radio would switch stations on its own, the interior lights would pulse randomly, and the security alarm would trigger for no reason. He’d already replaced the battery and checked all the fuses. After connecting my scan tool, I noticed multiple U-codes (communication errors) pointing to the BCM. Instead of a complex and costly rewiring job, we identified the BCM as the culprit. A cloned module like this one solved every single issue in under an hour of shop time. These symptoms are classic signs of internal BCM failure, where the logic board begins to break down.
Is Your GM Vehicle Showing These BCM Failure Signs?
- ✔ Unpredictable power window or power lock operation.
- ✔ The security or anti-theft light stays on, preventing the engine from starting.
- ✔ Horn honking or exterior lights flashing without input.
- ✔ Inconsistent or non-working dashboard gauges and warning lights.
- ✔ Communication error codes (often U-codes) stored in the system.
- ✔ Wipers or radio turning on and off by themselves.
- ✔ Key fobs are not being recognized by the vehicle.
A Straightforward Guide to Your BCM Swap
Installing your pre-programmed BCM is designed to be a simple process. While the exact location varies by model (see fitment list), the general steps are consistent. For a 2015 Corvette BCM, you’ll typically find it in the left-hand side of the dash.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on electrical components.
- Locate the BCM: Find the module. In many GM trucks and SUVs, it’s under the steering column, while in cars like the Corvette or CTS, it’s often behind the dash panel on the driver’s side.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM and remove it from the vehicle.
- Install the New Module: Mount your new, programmed BCM in the same location and securely reconnect all electrical harnesses.
- Reconnect Battery & Test: Reconnect the negative battery terminal. Start the vehicle and test all functions controlled by the BCM: lights, locks, windows, wipers, and radio.
Important Post-Installation Note: In some cases, additional steps may be needed. If your airbag light is on, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure. Similarly, a ‘Brake Pedal Position Relearn’ might be necessary for proper brake light and traction control function. Always consult a factory service manual for model-specific details.
Verified Vehicle Compatibility List
This BCM is a direct-fit replacement for the following part numbers: 13592137, 13506935, 13506936, 13587704, 13594764. Please verify your part number and match your vehicle from the list below to ensure proper fitment.
- ATS (2015-2016): Body Control (BCM); (on firewall)
- Corvette (2015): Body Control (BCM); (LH dash)
- CTS (2015-2016): Body Control (BCM); Sedan, (LH dash)
- Escalade / Escalade ESV (2015): Body Control (BCM); (under steering column), w/ model year break point (opt AVF)
- Impala (2015-2016): Body Control (BCM); VIN 1 (4th digit, New Style), (LH dash), ID 13587704
- Sierra 1500 / Denali 1500 (2015): Body Control (BCM); (under steering column)
- Sierra 2500 / 3500 / Denali (2015): Body Control (BCM); (under steering column or LH firewall), ID 13587704
- Silverado 1500 / 2500 / 3500 (2015): Body Control (BCM); (under steering column)
- Sonic (2015-2018): Body Control (BCM); (RH rear quarter panel)
- Suburban 1500 (2015): Body Control (BCM); (under steering column), w/ model year break point (opt AVF)
- Tahoe (2015): Body Control (BCM); (under steering column), w/ model year break point (opt AVF)
- XTS (2015): Body Control (BCM); (left front hinge pillar)
- Yukon / Yukon XL 1500 (2015): Body Control (BCM); (under steering column), w/ model year break point (opt AVF)
Frequently Asked Questions
How does the programming service work?
After you place your order, we will contact you with simple instructions to ship your original BCM to us. We then extract the vehicle-specific data and flash it onto the replacement module. This makes the new part a perfect electronic match for your car, eliminating the need for dealer programming.
Do I need to send my keys with the module?
No, you do not need to send your keys. Our cloning process transfers all the necessary security information from your old BCM, so your existing keys will work seamlessly with the new module upon installation.
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer that manages many of your vehicle’s non-engine-related functions. This includes power windows, power locks, interior and exterior lighting, the alarm system, wipers, and key fob recognition.
Will I need any special tools for installation?
For most models, you will only need basic hand tools like a socket set and screwdrivers to access and replace the BCM. However, if an airbag or brake pedal relearn is required post-installation, a professional-grade diagnostic scan tool will be necessary to complete those procedures.
Is there a core charge for this part?
No, there is no core charge. You are not required to send your old BCM back to us after the service, but we do need it initially to perform the data cloning.