Restore Your Truck’s Electrical System with a True Plug-and-Play Solution
As a technician with over two decades of experience, I’ve seen firsthand how a failing Body Control Module (BCM) can turn a reliable truck into a source of constant frustration. One minute the power windows work, the next they don’t. The radio might shut off randomly, or worse, the anti-theft system prevents the engine from starting, leaving you stranded. These aren’t just annoyances; they’re symptoms of a failing central nervous system in your vehicle. This pre-programmed 2015 Sierra Denali 1500 BCM is the definitive, hassle-free solution to get your vehicle’s features working correctly again.
Forget the expensive dealership visit and the complex programming procedures. Our unique cloning service makes this repair straightforward. After you place your order, we’ll provide instructions for you to ship your original BCM to our facility. We then extract the specific data that’s unique to your truck—including key codes, VIN, and optional feature settings—and flash it directly onto this replacement unit. The module you receive back is a true plug-and-play component, ready for installation right out of the box. This process eliminates the need for expensive factory scan tools and costly labor, putting you back in control.
From the Diagnostic Bay: The Ghost in the Machine
A customer brought in a 2015 Silverado with a list of baffling issues: the dome light would flicker, the driver’s side door lock would cycle on its own, and occasionally the truck would refuse to crank. He’d already replaced the battery and checked all the fuses. After connecting my diagnostic tool, I saw a slew of communication error codes (U-codes) pointing to the BCM. Instead of just ordering a new, blank module from the dealer which would have required hours of programming and setup, we used a cloned BCM. The entire process of swapping the module took less than 30 minutes, and every single electrical gremlin was gone. It’s a prime example of how the right part, correctly prepared, can save hours of diagnostic headaches and hundreds of dollars.
Is Your GM Vehicle Showing These Symptoms?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, a failing BCM is the likely culprit:
- ✔ Erratic or non-functional power windows, door locks, or interior/exterior lights.
- ✔ The security or anti-theft light stays on, causing a no-start condition.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Wipers activating on their own or not responding to the switch.
- ✔ Instrument cluster gauges behaving erratically or going dark.
- ✔ Communication error codes, such as U0140, U0155, or other U-series codes, stored in the system.
- ✔ Airbag or other warning lights illuminated on the dash.
Your Straightforward Installation Guide
Installing your pre-programmed BCM is a simple process. While the exact location can vary, on most Sierra/Silverado models it’s found under the steering column. Always disconnect the battery before starting.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system to fully discharge.
- Locate the BCM: On your 2015 Sierra Denali 1500, the BCM is typically located under the driver’s side of the dashboard, near the steering column. You may need to remove a lower dash panel for access.
- Disconnect Connectors: Carefully release the locking tabs on the electrical connectors and unplug them from the old BCM. They are color-coded and keyed, so they can only go back in one way.
- Swap the Module: Remove the mounting bolts or clips holding the original BCM in place and take it out. Install the new, programmed BCM in its place.
- Reconnect and Reassemble: Plug the electrical connectors firmly into the new module until they click. Reinstall any dash panels you removed.
- Power Up: Reconnect the negative battery terminal. Your vehicle is now ready to go.
Important Post-Installation Checks
Our cloning service handles all the critical programming, but due to the complexity of modern vehicle systems, a couple of minor relearn procedures may be necessary after installation:
- Airbag System Sync: If your airbag warning light is on after the swap, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ function. This syncs the new BCM with the airbag module and is only required if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be needed to ensure your brake lights and traction control system function perfectly. This is a simple procedure that can be done with most professional-grade scan tools.
Disclaimer: Always consult a factory service manual or a qualified technician if you are unsure about any part of the process.
Verified Fitment For a Wide Range of GM Models
This BCM is a direct replacement for part numbers 13592137, 13506935, 13506936, 13587704, and 13594764. It is guaranteed to fit the following vehicles:
- 2015 Cadillac ATS, CTS, Escalade, Escalade ESV, XTS
- 2015 Chevrolet Corvette, Silverado 1500/2500/3500, Suburban 1500, Tahoe
- 2015-2016 Chevrolet Impala (New Style)
- 2015-2018 Chevrolet Sonic
- 2015 GMC Sierra 1500, Sierra Denali 1500
- 2015 GMC Sierra 2500/3500, Sierra Denali 2500/3500
- 2015 GMC Yukon, Yukon XL 1500
- 2016 Cadillac ATS, CTS
Frequently Asked Questions
How does this cloning service work?
It’s simple. You purchase this service, send us your original BCM, and we transfer all of its critical data (VIN, key information, mileage, options) to a fully tested replacement module. We then ship the replacement module back to you, ready for plug-and-play installation.
Why is this better than buying a new BCM from a dealer?
A new BCM from the dealership is a ‘blank slate’ that requires several hours of programming with expensive, specialized tools. Our service eliminates this step entirely, saving you significant time and money on labor and programming fees.
How long does the process take after you receive my module?
We pride ourselves on a fast turnaround. Once we receive your original BCM, the cloning and testing process is typically completed within 1-2 business days. We then ship the programmed module back to you, and you’ll receive a tracking number.
Do I need to do any programming myself?
No. The module you receive is fully programmed and ready to install. In some rare cases, a simple relearn procedure for the airbag or brake pedal sensor may be needed, as described above, but this is not the same as programming the entire module.
Is there a core charge for this part?
No, there is no core charge. We only need your original module for the data transfer service. You can keep your old, non-functional module.
What if my original BCM is completely dead and won’t communicate?
In many cases, even if the BCM isn’t communicating with the vehicle, we can still perform a direct data recovery from the memory chip on the circuit board. Please contact us before ordering if your module is severely damaged by water or fire.