Restore Your Truck’s Electrical Functions with a Hassle-Free Solution
Is your 2015 Sierra Denali 1500 acting possessed? Flickering lights, malfunctioning power windows, a security system that won’t cooperate, or even a frustrating no-start condition are all classic signs of a failing Body Control Module (BCM). As the central command center for your truck’s electronics, when the BCM goes down, it can cause a cascade of confusing and disruptive problems. Dealerships often charge a fortune for a new module plus hours of labor for programming. We offer a smarter, more direct path to getting your truck back in order.
This is a comprehensive cloning service for a replacement BCM compatible with part number 13506936. The process is simple: you purchase this service, and we’ll provide instructions for shipping your original BCM to our facility. Our expert technicians will then transfer your vehicle’s specific programming, key data, and VIN information to this replacement module. We then ship it back to you, ready for installation. This means no expensive trips to the dealer for programming—it’s a true plug-and-play fix for your 2015 Sierra Denali 1500 BCM.
From the Diagnostic Bay: The Ghost in the Sierra
A customer brought in a 2015 Sierra 1500 with a laundry list of bizarre electrical gremlins. The radio would turn on and off, the dome light would stay on, and the power locks worked intermittently. He’d already replaced the battery and checked all the fuses. After connecting my scan tool, I saw multiple U-codes, specifically U0140 (Lost Communication with Body Control Module). This pointed directly to a BCM failure. Instead of a costly new unit, we performed a cloning service just like this one. By transferring his original data, we ensured all his factory options worked perfectly the moment the replacement was plugged in. He was back on the road the same day, saving hundreds compared to the dealership quote.
Is Your Truck Showing These Symptoms?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your module needs attention:
- ✔ Power windows, mirrors, or locks operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security system alarm sounding randomly or preventing the engine from starting.
- ✔ The dashboard displaying multiple warning lights without a clear cause.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or B1001.
- ✔ Inconsistent or non-functional remote keyless entry.
Your Straightforward Installation Guide
Installing your newly programmed 2015 Sierra Denali 1500 BCM is a manageable task for a confident DIYer. For the 2015 Sierra, the BCM is typically located under the steering column, to the left of the brake pedal.
- Safety First: Always disconnect the negative terminal from your truck’s battery before beginning any electrical work.
- Locate the BCM: On your Sierra, you’ll find the BCM mounted under the driver’s side of the dashboard. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the multiple wiring harness connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the Replacement: Mount the new, programmed BCM in the same location and securely reconnect all wiring harnesses. You should hear a ‘click’ as they lock into place.
- Reconnect Power: Re-attach the negative battery terminal and tighten it securely.
- Test Functionality: Start the vehicle and test all body functions: lights, windows, locks, wipers, and radio to ensure everything is working as expected.
Important Post-Installation Notes
While our cloning service makes this a plug-and-play repair, some vehicle systems may require a ‘handshake’ with the new BCM. Please be aware of the following potential procedures:
- 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 airbag system with the BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure correct brake light and traction control operation.
Always consult a factory service manual or a qualified technician if you are unsure about any step.
Verified Vehicle Compatibility
This programming service and module are compatible with a wide range of GM vehicles. Please verify your part number (13506936) or check the list below. This module is a direct replacement for part numbers: 13592137, 13506935, 13506936, 13587704, 13594764.
This part will fit these makes and models with these options:
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 programming service work?
After you place your order, we will contact you with simple instructions to mail your original BCM to us. We then clone the data to the replacement module and ship it back to you, typically within 1-2 business days of receiving your original part.
Is this really plug-and-play?
Yes. Because we transfer all the data from your original module, including the VIN and security information, the replacement BCM will be recognized by your vehicle’s other computers without needing a trip to the dealer for programming.
Do I need to send my keys?
No, you do not need to send your keys. All the necessary security data is stored within the BCM itself, which is what we transfer during the cloning process.
What if my original BCM is completely dead or not communicating?
In many cases, even if the BCM is failing, we can still extract the necessary data. Please contact us before ordering if your module is severely damaged by water or fire, or if it has no communication whatsoever.
Is there a core charge?
No, there is no core charge for this service. You are welcome to keep your original module after the service is complete.