Tired of Your Truck’s Electrical Gremlins?
Is your GM truck or SUV acting possessed? Flickering lights, a dead instrument cluster, power windows with a mind of their own, or a security system that randomly prevents you from starting the engine? These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, when the BCM goes bad, it can create a cascade of frustrating and unpredictable problems. This isn’t a part you can ignore—it’s essential for your vehicle’s operation and safety.
Instead of facing a costly trip to the dealership, which involves towing fees and expensive programming sessions, we offer a straightforward, reliable solution. This listing is for a replacement BCM, part number 13594692 (and other compatible numbers listed below), that comes ready for installation through our professional cloning service. You simply send us your original BCM, and we transfer all the critical data—including your vehicle’s VIN, mileage, and key information—to this replacement unit. The result? A true plug-and-play module that restores full functionality without any extra programming required on your end.
A Technician’s Notebook: The Water Intrusion Nightmare
I remember a 2015 Silverado 2500 that came into my bay with the wildest symptoms I’d seen in a while. The horn would blare when you used the right turn signal, the radio display would go blank, and the truck would intermittently refuse to start. The owner had already replaced the battery and checked the grounds. After hooking up my scan tool, I saw a storm of U-codes (communication errors) pointing to the BCM. On many of these GM trucks, the BCM is located under the steering column or on the LH firewall, an area unfortunately susceptible to water leaks from a bad windshield seal. Sure enough, upon removal, we found clear signs of corrosion on the BCM’s circuit board. A simple cloned BCM like this one had him back on the road the same day, saving him hundreds compared to the dealership alternative.
Is Your Vehicle Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, your Body Control Module is the likely culprit:
- ✔ Power windows, locks, or mirrors not working or operating erratically.
- ✔ Interior or exterior lights flickering, staying on, or not turning on at all.
- ✔ The anti-theft or security system light is on, preventing the engine from starting.
- ✔ The horn honking unexpectedly or not working when needed.
- ✔ Instrument panel gauges behaving erratically or going completely dead.
- ✔ Communication error codes (U-codes) stored in the system, such as U0140, U0155, or U0164.
- ✔ A/C and heater controls are unresponsive.
A Straightforward Guide to Installation
Our cloning service makes the physical replacement simple. Here’s a general guide to get you started:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On most compatible vehicles like the Sierra, Silverado, Tahoe, and Suburban, the BCM is located under the driver’s side of the dashboard, often near the steering column or on the left-hand firewall/kick panel area. Consult a service manual for your specific model’s location.
- Remove the Old Module: Carefully disconnect all electrical connectors from the original BCM. They have locking tabs, so be gentle to avoid breaking them. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your newly programmed BCM in the same location. Reconnect all the electrical connectors, ensuring each one clicks securely into place.
- Reconnect Power: Reattach the negative battery terminal.
- Test Functionality: Start the vehicle and test all the body functions: lights, locks, windows, horn, radio, and wipers to confirm the issue is resolved.
Important Post-Installation Notes
While our cloning 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 potential procedures:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the modules and is a critical safety step.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure your brake lights and traction control system function correctly.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a qualified technician for procedures specific to your vehicle.
Verified Vehicle Compatibility
This BCM is a direct replacement for part numbers 13594692, 13594768, 13593214, 13580690, 13591519, and 13594769. It is guaranteed to fit the following models:
- Cadillac ATS: 2014
- Cadillac CTS: 2014 (Sdn, VIN A)
- Cadillac Escalade / ESV: 2015
- Cadillac XTS: 2014
- Chevrolet Caprice / SS Caprice: 2014-2017
- Chevrolet Corvette: 2014
- Chevrolet Impala: 2015-2019 (New Style)
- Chevrolet Silverado 1500/2500/3500: 2014-2015
- Chevrolet Suburban 1500: 2015
- Chevrolet Tahoe: 2015
- GMC Sierra 1500/2500/3500 & Denali Models: 2014-2015
- GMC Yukon / Yukon XL 1500: 2015
Please verify your part number or contact us with your VIN to ensure compatibility before ordering.
How does the cloning service work?
How does the cloning service work?
After you place your order, we will provide you with instructions to ship your original BCM to us. Once we receive it, our technicians will transfer all the essential data to the replacement module. We then ship the ready-to-install BCM back to you, typically within 1-2 business days. This process ensures your vehicle accepts the new part without needing a trip to the dealer.
Do I need to send my keys?
No, you do not need to send your keys. All the necessary immobilizer and key data is stored within your original BCM and will be transferred during the cloning process, allowing your existing keys to work perfectly.
Is there a core charge for this part?
No, there is no core charge. You are not required to return your original module to us after the service, though we need it initially for the data transfer. You can keep your old part.
Will this fix my specific problem?
This module will correct issues directly caused by a faulty BCM. We strongly recommend a proper diagnosis by a qualified mechanic to confirm the BCM is the source of your problems before ordering. Check for communication codes and rule out simpler issues like fuses or wiring.
What tools do I need for the installation?
For most models, basic hand tools like a socket set and a trim removal tool are all that’s required for the physical swap. However, as noted, a professional scan tool may be needed for post-installation procedures like the airbag system sync if the warning light appears.