If you’re battling bizarre electrical issues in your 2014 GMC Sierra Denali 1500, you’ve come to the right place. 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. Flickering dash lights, power windows with a mind of their own, or a security system that prevents your truck from starting—these are all classic signs that the BCM, the central hub for your vehicle’s body electronics, is failing.
Forget the expensive trip to the dealership and the uncertainty of programming a new module. We offer a simple, effective solution: a professionally programmed replacement BCM. This isn’t just a part in a box; it’s a comprehensive service. You send us your original BCM, and we transfer all its vital data—including key information and vehicle-specific options—to a fully tested replacement module. The result is a true plug-and-play component that restores full functionality to your truck without any additional programming required on your end.
A Technician’s Notebook
I remember a 2014 Sierra that came into the shop with a complaint that was driving the owner crazy. The interior lights would pulse randomly, the radio would shut off, and occasionally the truck wouldn’t recognize the key fob. He’d already replaced the battery and checked the main grounds. After connecting my scan tool, I found a slew of communication error codes, all pointing back to the BCM (DTC U0140 – Lost Communication With Body Control Module was the big one). Instead of a costly new module and hours of programming, we used this exact cloning service. The customer shipped his module, got the programmed replacement back in a few days, and installed it himself in under an hour. The ‘ghosts’ were gone, and his truck was back to normal. It’s a reliable fix that saves time and money.
Is Your Sierra Exhibiting These Electrical Gremlins?
A failing 2014 Sierra Denali 1500 BCM can cause a wide range of symptoms. If you’re noticing any of the following, this module is the likely solution:
- ✔ Intermittent or non-functional power windows, locks, or mirrors.
- ✔ Erratic instrument cluster behavior (gauges dropping to zero, warning lights flashing).
- ✔ Security or anti-theft light staying on, preventing the engine from starting.
- ✔ Interior or exterior lights not working correctly (staying on or not turning on).
- ✔ Diagnostic Trouble Codes (DTCs) related to communication loss, such as U0140, U0155, or other U-codes.
- ✔ Key fobs not being recognized by the vehicle.
A Straightforward Guide to BCM Installation
Installing your programmed BCM is a manageable job for a DIYer with basic tools. While the exact location is under the driver’s side steering column, always consult a service manual for precise instructions.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On your Sierra, the BCM is typically found under the driver’s side of the dashboard, near the steering column. You may need to remove a lower dash panel for access.
- 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 Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical harnesses. Ensure they click into place.
- Reconnect Power: Re-attach the negative battery terminal.
- Perform Final Checks: Start the vehicle and test all body functions—windows, locks, lights, wipers, and radio—to confirm everything is working as it should.
Post-Installation Procedures & Notes
Our cloning service makes this process nearly seamless. However, in some GM vehicles, a couple of quick sync procedures may be needed after installation:
- Airbag System Sync: If the airbag warning light is on after installation, a professional scan tool is required to perform the “Setup SDM Primary Key in BCM” function. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: To ensure correct brake light and traction control operation, a brake pedal position sensor relearn might be necessary. This can also be done with a capable bidirectional scan tool.
- No Core Charge: You are not required to return your old module. This purchase has no core charge.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a qualified technician if you are unsure about any step.
Verified Compatibility for Your GM Vehicle
This BCM, identified by part numbers including 13594692, 13591519, 13594768, 13593214, 13580690, and 13594769, is a direct-fit replacement for a wide range of GM cars, trucks, and SUVs. Please verify your part number and model from the list below.
- ATS 2014
- CAPRICE 2014-2017
- CORVETTE 2014
- CTS 2014 (Sdn, VIN A)
- ESCALADE & ESCALADE ESV 2015
- IMPALA 2015-2019 (New Style)
- SS CAPRICE 2014-2017
- SILVERADO 1500 PICKUP 2014
- SILVERADO 2500/3500 PICKUP 2015
- SIERRA 1500 PICKUP 2014
- SIERRA DENALI 1500 2014
- SIERRA 2500/3500 PICKUP 2015
- SIERRA DENALI 2500/3500 2015
- SUBURBAN 1500 2015
- TAHOE 2015
- XTS 2014
- YUKON & YUKON XL 1500 2015
Frequently Asked Questions
Frequently Asked Questions
How does the cloning service work?
After you place your order, we’ll provide instructions for shipping your original BCM to us. Once we receive it, our technicians will extract the unique data and program it onto a replacement module. We then ship the ready-to-install BCM back to you.
Is this a guaranteed fix for my truck’s electrical problems?
This part resolves issues directly caused by a faulty BCM. If your vehicle exhibits the common symptoms listed above, and especially if you have communication-related DTCs, this is a very high-confidence repair. Proper diagnosis is always recommended.
Do I need to take my truck to a dealer after installation?
No! Our programming service eliminates the need for dealer programming. The module arrives ready to be installed. In some rare cases, a simple relearn procedure for the airbag or brake pedal sensor may be needed, which can be done by most independent shops.
What is the turnaround time?
We typically program and ship your replacement BCM within 1-2 business days of receiving your original module. Return shipping tracking will be provided immediately.
Do I need to send my keys with the module?
No, you do not need to send your keys. All the necessary security information is stored within the BCM itself, which we will transfer to the new unit. Your existing keys will work seamlessly.