Restore Your Truck’s Reliability and End Electrical Chaos
Is your 2014 GMC Sierra 1500 acting possessed? Flickering dash lights, power windows with a mind of their own, or a security system that randomly prevents you from starting the engine are all classic signs of a failing Body Control Module (BCM). The BCM is the central hub for your truck’s body electronics, and when it starts to go, it can cause a cascade of frustrating and unpredictable problems. Instead of paying for expensive diagnostic time and programming fees at a dealership, get the simple, reliable fix right here.
This is a direct-replacement BCM (part number 13594692) that arrives at your door fully programmed and ready for installation. We use a professional cloning service: you simply send us your original BCM, and we transfer all its vital data—including key information and vehicle-specific options—to this replacement unit. This process ensures a seamless installation, bypassing the need for a trip to the dealer for programming. It’s the most efficient way to get your truck back to 100% functionality.
From the Diagnostic Bay: A BCM Mystery Solved
I remember a 2014 Sierra that came into my shop with the strangest collection of symptoms I’d seen in a while. The radio would switch stations on its own, the dome light wouldn’t turn off, and the horn would chirp intermittently when locking the doors. The owner had already replaced the battery and checked all the fuses. After connecting my scan tool, I found a slew of communication error codes (U-codes) pointing to a network problem. Instead of chasing ghosts in the wiring for hours, my experience pointed straight to the BCM. It was failing internally, corrupting data and sending faulty commands across the vehicle. We swapped in a cloned BCM like this one, and in 15 minutes, every single electrical gremlin was gone. It’s a perfect example of how one component can be the root of dozens of issues.
Is Your Truck Exhibiting These BCM Failure Symptoms?
- âś” Erratic or non-functional power windows, locks, and mirrors.
- âś” Interior or exterior lights flickering, staying on, or not working at all.
- âś” The security system light flashing, or the vehicle not starting due to a perceived theft attempt.
- âś” The horn honking randomly or not working when pressed.
- âś” Inaccurate gauge readings on the instrument cluster.
- âś” Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or other U-codes.
Your Straightforward Installation Guide
- âś” Safety First: Always disconnect the negative terminal from your truck’s battery before working on electrical components.
- âś” Locate the BCM: On the 2014 Sierra 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.
- âś” 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.
- âś” Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all the electrical harnesses. Ensure they click into place.
- âś” Reconnect Power: Re-attach the negative battery terminal.
- âś” Test All Functions: Start the vehicle and test all the body functions: lights, windows, locks, horn, wipers, and radio to confirm the repair.
Important Post-Installation Information
While our programming service makes this a plug-and-play repair for most functions, 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 on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool to sync the systems. This is only required if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be needed to ensure correct brake light and traction control operation.
Disclaimer: Specific procedures can vary. Always consult a factory service manual or a qualified technician for guidance.
Verified Fitment For These GM Vehicles
This BCM is a confirmed fit for the 2014 GMC Sierra 1500 Pickup and is also compatible with a wide range of other GM cars, trucks, and SUVs. It replaces part numbers 13594692, 13594768, 13593214, 13580690, 13591519, and 13594769. Please check the list below to verify your vehicle. If you have any questions about fitment, contact us before ordering.
- ATS 14 Body Control (BCM); (on firewall)
- CAPRICE 14-17 Body Control (BCM)
- CORVETTE 14 Body Control (BCM); (LH dash)
- CTS 14 Body Control (BCM); Sdn, VIN A (4th digit, New Style), (LH dash)
- ESCALADE & ESCALADE ESV 15 Body Control (BCM); (under steering column), w/o model year break point
- IMPALA 15-16 Body Control (BCM); VIN 1 (4th digit, New Style), (LH dash), ID 13594692
- IMPALA 17-19 Body Control (BCM); (LH Dash)
- SIERRA 1500 PICKUP 14 Body Control (BCM); (under steering column)
- SIERRA DENALI 1500 14 Body Control (BCM); (under steering column)
- SIERRA 2500 / 3500 PICKUP 15 Body Control (BCM); (LH firewall), ID 13594692
- SIERRA DENALI 2500 / 3500 15 Body Control (BCM); (under steering column), ID 13594692
- SILVERADO 1500 PICKUP 14 Body Control (BCM); (under steering column)
- SILVERADO 2500 / 3500 PICKUP 15 Body Control; (under steering column), ID 13594692
- SS CAPRICE 14-17 Body Control (BCM)
- SUBURBAN 1500 15 Body Control (BCM); (under steering column), w/o model year break point
- TAHOE 15 Body Control (BCM); (under steering column), w/o model year break point
- XTS 14 Body Control (BCM); (left front hinge pillar)
- YUKON & YUKON XL 1500 15 Body Control (BCM); (under steering column), w/o model year break point
No Core Charge: You are not required to return your old module after the cloning service is complete. You can keep it.
How does the programming service work?
How does the programming service work?
After you place your order, we will contact you with instructions to ship your original BCM to us. Once we receive it, we will professionally clone all the necessary data to the new module and ship it back to you, typically within one business day. Tracking information will be provided.
Is this a plug-and-play part?
Yes, because we clone your original module’s data, this part is designed to be plug-and-play. It eliminates the need for dealer programming. However, as noted above, some models may require a simple relearn procedure for the airbag or brake pedal position sensor if a warning light appears.
Will this fix my specific electrical problem?
This BCM will resolve issues directly caused by a faulty BCM. If your vehicle exhibits multiple symptoms from the list above (flickering lights, window/lock problems, security faults), a failing BCM is the most likely cause. For a single, isolated issue (e.g., only one window not working), you should also check the relevant switch and motor.
Do I need special tools to install this?
For the physical installation, you’ll only need basic hand tools like a socket set and a trim removal tool to access the BCM under the dash. No special programming tools are required thanks to our cloning service. A professional scan tool would only be needed if a post-install relearn procedure is necessary.
What does ‘no core charge’ mean?
It means you don’t have to pay an extra deposit, and you are not required to send your old part back to us after the repair is complete (though we do need it initially for the cloning process). You are free to keep your original module.