Tired of Unpredictable Electrical Problems in Your GM Vehicle?
As a technician with over two decades of experience, I’ve seen it all. One minute the radio works, the next it doesn’t. The power windows have a mind of their own, the security light flashes for no reason, or worse, your truck or car won’t start at all. These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM), the central nervous system for your vehicle’s electronics. A faulty BCM can turn a reliable vehicle into a source of constant frustration. This isn’t just about convenience; it’s about having a vehicle you can depend on every single day.
This is your permanent, hassle-free solution. We offer a professionally programmed 2015 Sierra BCM that eliminates the need for expensive dealership visits and complex programming tools. Our unique cloning service makes this repair straightforward and affordable.
How Our Simple Plug-and-Play Cloning Service Works
Forget about paying for towing and waiting days for a dealership appointment. Our process is designed for both seasoned mechanics and determined DIYers. We transfer the critical data—like your Vehicle Identification Number (VIN), key codes, and specific options—from your original BCM to this replacement unit. When you receive it back from us, it’s ready to install. No additional programming, no special software, just a direct-fit solution that restores full functionality.
A Technician’s Notebook: The Case of the Ghostly Sierra
A customer brought in his 2015 Sierra 1500 with a list of problems that sounded like something out of a horror movie. The horn would blare randomly, interior lights flickered while driving, and the dash would light up like a Christmas tree with communication error codes (mostly U-codes). He’d already replaced the battery and checked grounds. After connecting my scan tool, I saw multiple modules losing communication with the BCM. Instead of a complex wiring issue, my experience pointed straight to an internal failure in the 2015 Sierra BCM. By providing a cloned module, we had him back on the road the next day with all issues resolved, saving him over $800 compared to the dealership quote.
Is Your GM Vehicle Showing These BCM Failure Signs?
- ✔️ Intermittent or non-functional power windows, locks, or mirrors.
- ✔️ Erratic behavior from the radio, interior lights, or dashboard gauges.
- ✔️ False anti-theft system alerts or a no-start condition.
- ✔️ The cooling fans run constantly, even when the engine is cold.
- ✔️ Diagnostic Trouble Codes (DTCs) related to lost communication, such as U0140, U0155, or B1001.
- ✔️ Inconsistent operation of exterior lights, including headlights and turn signals.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On most 2015 Sierra and Silverado models, the BCM is located under the steering column, on the driver’s side of the dashboard. For other models, its location can vary (e.g., firewall, quarter panel), so consult a service manual if unsure.
- ✔ Remove the Old Module: Carefully disconnect all electrical connectors. They have locking tabs that need to be pressed to release. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Seat your newly programmed BCM into the mounting bracket and securely reconnect all electrical connectors. You should hear a click as they lock into place.
- ✔ Reconnect Power: Re-attach the negative battery terminal.
- ✔ Test Functionality: Start the vehicle and test all body functions: lights, windows, locks, radio, etc., to confirm the repair was successful.
Important Post-Installation Notes
While our cloning makes this a near plug-and-play repair, some GM systems require a final handshake. Be aware of these potential, but not always necessary, steps:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be required to ensure correct brake light and traction control operation.
Disclaimer: Vehicle systems vary. Always have a factory service manual available for reference or consult with a qualified automotive technician.
Verified Fitment Across a Wide Range of GM Models
This BCM, part number 13506936, is a direct replacement for several part numbers including 13592137, 13506935, 13587704, and 13594764. It fits a variety of 2015-2018 GM vehicles. Please verify your part number and check the list below to ensure compatibility.
This part will fit these makes and models with these options
CORVETTE 15 Body Control (BCM); (LH dash)
IMPALA 15-16 Body Control (BCM); VIN 1 (4th digit, New Style), (LH dash), ID 13587704
SIERRA 1500 PICKUP 15 Body Control (BCM); (under steering column)
SIERRA DENALI 1500 15 Body Control (BCM); (under steering column)
SUBURBAN 1500 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
SILVERADO 3500 PICKUP 15 Body Control (BCM); (under steering column), ID 13587704
XTS 15 Body Control (BCM); (left front hinge pillar)
YUKON XL 1500 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
ATS 15 Body Control (BCM); (on firewall)
ESCALADE 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
CTS 15 Body Control (BCM); Sdn, (LH dash)
SIERRA 2500 PICKUP 15 Body Control (BCM); (LH firewall), ID 13587704
SILVERADO 2500 PICKUP 15 Body Control; (under steering column), ID 13587704
SONIC 15-18 Body Control (BCM); (RH rear quarter panel)
TAHOE 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
CTS 16 Body Control (BCM); (LH dash), ID 13587704
ESCALADE ESV 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
SIERRA DENALI 3500 15 Body Control (BCM); (under steering column), ID 13587704
ATS 16 Body Control (BCM); (on firewall), ID 13587704
SIERRA 3500 PICKUP 15 Body Control (BCM); (LH firewall), ID 13587704
SIERRA DENALI 2500 15 Body Control (BCM); (under steering column), ID 13587704
SILVERADO 1500 PICKUP 15 Body Control (BCM); (under steering column)
YUKON 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
Frequently Asked Questions
How does the cloning process work after I order?
After you complete your purchase, we will contact you with detailed instructions and a shipping address. You will need to send us your original BCM. Once we receive it, we will clone the data to the replacement unit and ship it back to you, typically within one business day.
Is this really plug-and-play?
Yes, for over 95% of installations. Because we clone your original module’s data, the vehicle recognizes the new BCM as its own. In rare cases, a simple relearn procedure like for the airbag or brake pedal sensor may be needed, as noted above.
Do I need to send my keys with the module?
No. Since we are transferring all the security information from your old BCM, your existing keys will work seamlessly with the newly programmed module.
Is there a core charge?
No, there is no core charge for this service. You can keep your original, non-working module.
What if my original BCM is completely dead or not communicating?
In most cases, even if the BCM is failing, we can still extract the necessary data. If your module has severe physical damage (fire, flood) or is completely unreadable, please contact us before purchasing to discuss options.