Restore Your Truck’s Electrical System with a Plug-and-Play Solution
As a technician with over two decades of experience under the hood, I’ve seen firsthand the chaos a failing Body Control Module (BCM) can cause. Your 2014 GMC Sierra 1500 isn’t just a truck; it’s a complex network of electronics, and the BCM is the central command. When it starts to fail, you get bizarre, frustrating symptoms that can seem unrelated. One minute your power windows won’t work, the next the radio is acting up, or worse, the security system prevents the truck from starting. It’s a headache that can lead you down a rabbit hole of expensive, incorrect diagnoses.
This isn’t just a replacement part; it’s a complete, hassle-free repair service. We take the data from your original, failing BCM and transfer it directly to this fully tested replacement module. The result? A true plug-and-play component that requires no expensive trip to the dealership for programming. It arrives at your door ready to install, restoring the precise functions and features your truck had when it left the factory.
From the Diagnostic Bay: The BCM Ghost Hunt
I remember a 2014 Silverado that came into the shop with a laundry list of complaints: intermittent no-start, dome lights staying on, and the driver’s power window working only when it felt like it. The owner had already replaced the battery and the window switch. After checking the basics, we hooked up the scan tool. We found a slew of U-codes (communication errors) pointing to a network issue. This is a classic sign. The BCM acts as a gateway for many modules, and when it internally fails, it floods the network with garbage data, causing other modules to report errors. By addressing the core issue with a properly programmed 2014 Sierra 1500 BCM, we cleared all the codes and fixed every single symptom in one shot. It saved the customer hundreds in further diagnostic time and unnecessary parts.
Is Your Sierra Showing These Symptoms?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights behaving erratically (staying on or not turning on).
- ✔ The security system acting up, leading to a no-crank or no-start condition.
- ✔ Inaccurate gauge readings or a flickering instrument cluster.
- ✔ Warning lights on the dash, such as for the airbag or service reminders.
- ✔ Communication error codes (U-codes) stored in the system, like U0140, U0155, or U0100.
- ✔ HVAC (heating and air conditioning) controls not responding correctly.
Your Straightforward BCM Installation Guide
Installing your programmed BCM is a manageable job for a DIY enthusiast. Here’s a general guide to get you through it:
- Safety First: Always disconnect the negative terminal from your truck’s battery and wait about 10-15 minutes to allow all systems to power down completely.
- Locate the BCM: On most 2014 Sierra 1500 models, the BCM is 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 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 and remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed BCM into the bracket and securely plug in all the electrical connectors. You should hear a click as they lock into place.
- Reconnect and Test: Reinstall any trim panels you removed. Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting) and test all body functions: lights, locks, windows, radio, etc.
Important Post-Installation Information
While our service makes this a plug-and-play process, some vehicle systems may require a ‘handshake’ with the new BCM. Please be aware of the following:
- Airbag System Sync: If your airbag warning light is on 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 new BCM and is only necessary if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn might be required to ensure your brake lights and traction control system function as intended.
- Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a certified mechanic if you are unsure about any step.
Verified Fitment For These GM Models
This BCM programming service is compatible with modules bearing part numbers 13594692, 13594768, 13593214, 13580690, 13591519, or 13594769. It is a direct-fit solution for the following vehicles:
- ATS (2014)
- CAPRICE / SS CAPRICE (2014-2017)
- CORVETTE (2014)
- CTS (2014 Sedan)
- ESCALADE / ESCALADE ESV (2015)
- IMPALA (2015-2019)
- SIERRA 1500 / DENALI 1500 (2014)
- SIERRA 2500 / 3500 & DENALI (2015)
- SILVERADO 1500 (2014)
- SILVERADO 2500 / 3500 (2015)
- SUBURBAN 1500 (2015)
- TAHOE (2015)
- XTS (2014)
- YUKON / YUKON XL 1500 (2015)
Frequently Asked Questions
How does the programming service work?
It’s simple. After you place your order, we’ll contact you with instructions to ship your original BCM to us. Once we receive it, we extract the vehicle-specific data and transfer it to the replacement module. We then ship the ready-to-install BCM back to you, typically within 1-2 business days.
Do I need to send my keys?
No, you do not need to send us your keys. All the necessary security information is contained within your original BCM’s data, which we transfer over. Your existing keys will work seamlessly.
Is this a guaranteed fix for my truck’s problems?
This service fixes issues directly caused by a faulty BCM. If your vehicle’s symptoms match the common failure signs we’ve listed, there is a very high probability this will resolve the problem. However, proper diagnosis is key, as wiring or other module issues can sometimes mimic BCM failure.
What if my original BCM is completely dead or not communicating?
In many cases, even if the BCM is not communicating with a standard scan tool, we can still retrieve the necessary data directly from the board. Please contact us with details about your module’s condition if you have concerns.
Is there a core charge?
No, there is no core charge for this service. You can keep your original module after you’ve sent it to us for the data transfer.
What tools are needed for the installation?
Basic hand tools are usually all that’s required: a socket set for the battery terminal and potentially for the module’s mounting bolts, and a trim removal tool to safely take off any dash panels without scratching them.