Restore Full Functionality to Your GM Vehicle with a Plug-and-Play BCM
If your 2015 Silverado or other compatible GM vehicle is plagued by frustrating electrical issues—like power windows that won’t cooperate, door locks with a mind of their own, erratic interior lighting, or a persistent ‘Service’ message on your dash—a failing Body Control Module (BCM) is the likely culprit. The BCM is the central nervous system for your vehicle’s body electronics, and when it fails, it can cause a cascade of baffling problems. This isn’t just an annoyance; it can affect vehicle security and safety systems. Getting a replacement from the dealership often means expensive parts, high labor costs, and vehicle downtime while they perform complex programming.
We offer a straightforward and reliable solution. This listing is for a replacement BCM with a simple, mail-in cloning service. You send us your original module, and we transfer all of its critical data—including VIN, mileage, and security information—to this quality-tested replacement unit. The result is a true plug-and-play module. Once you receive it back, you simply install it, and your vehicle is back to normal without any need for expensive dealership programming. It’s the most efficient way to solve your BCM problems and get back on the road with confidence.
A Technician’s Notebook: The Case of the Haunted Silverado
A customer brought in a 2015 Silverado 1500 with a list of complaints that sounded like the truck was possessed. The dome light would flicker randomly, the radio would shut off, and the driver’s side window would only work intermittently. He’d already replaced the battery and checked the main grounds. My initial scan showed a slew of U-codes (communication errors) pointing to the BCM. In my shop, I’ve seen dozens of these GM trucks where water intrusion, often from a leaking windshield seal or cowl, drips directly onto the BCM located under the steering column. This slow corrosion on the circuit board is what causes these unpredictable failures. Our cloning service was the perfect fix. We transferred his data to a clean, tested BCM, and once installed, every single electrical gremlin was gone. It’s a textbook example of how a failing 2015 Silverado BCM can create widespread, confusing symptoms.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the BCM: On most 2015 Silverado and Sierra models, the BCM is located under the driver’s side dash, near the steering column. For other models, consult your service manual for the exact location (e.g., firewall, quarter panel).
- ✔ Remove the Original BCM: Carefully unplug all electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Package and Ship: Securely pack your original BCM and ship it to us using the instructions we provide after your purchase. Please ensure your contact information is correct so we can coordinate with you.
- ✔ Install the Replacement: Once you receive the programmed module back from us, simply mount it in place and reconnect all the electrical connectors. Ensure they click securely into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all body functions—windows, locks, lights, wipers, and radio—to confirm the repair.
Is Your Vehicle Showing These Symptoms?
A faulty BCM can manifest in many ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Inoperative power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that don’t work correctly or stay on.
- ✔ The anti-theft or security system light is illuminated, preventing the engine from starting.
- ✔ Multiple, unrelated warning lights on the instrument cluster.
- ✔ Communication failure diagnostic trouble codes (DTCs), such as U0140, U0155, or U0100.
- ✔ Wipers or horn activating unexpectedly or not at all.
Important Post-Installation Information
In most cases, this module is a simple plug-and-play installation. However, due to the complexity of modern vehicle systems, some models may require additional steps:
- Airbag System Sync: If the 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.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor recalibration may be needed to ensure proper brake light and traction control operation.
- No Core Charge: You are not required to return your original module to us after the service is complete, as we use it only for the data cloning process.
Verified Fitment for Your GM Vehicle
This BCM is a direct-fit replacement for units with part numbers 13592137, 13506935, 13506936, 13587704, or 13594764. It is compatible with a wide range of 2015-2018 GM vehicles. Please verify your part number and check the list below to ensure compatibility.
- Chevrolet Silverado 1500/2500/3500 (2015)
- GMC Sierra 1500/2500/3500 & Denali Models (2015)
- Chevrolet Suburban & Tahoe (2015)
- GMC Yukon & Yukon XL (2015)
- Cadillac Escalade & Escalade ESV (2015)
- Chevrolet Corvette (2015)
- Chevrolet Impala (2015-2016)
- Chevrolet Sonic (2015-2018)
- Cadillac ATS (2015-2016)
- Cadillac CTS (2015-2016)
- Cadillac XTS (2015)
Disclaimer: Always consult a factory service manual or a qualified technician for vehicle-specific procedures and guidance.
Frequently Asked Questions
How does the cloning service work?
After you place your order, we will contact you with instructions to ship your original BCM to us. We then use specialized equipment to extract the unique data from your module and flash it onto the replacement unit. We ship the programmed module back to you, ready for installation.
Will I need to program this BCM at the dealership?
No. Our cloning service makes this a plug-and-play part. All the necessary vehicle-specific information is transferred from your original module, so you can avoid the time and expense of dealer programming.
How long does the service take?
We typically program and ship the replacement module within one business day of receiving your original BCM. Return shipping time will depend on your location and the shipping method selected.
What if my original BCM is completely dead or not communicating?
In many cases, even if the BCM is not functioning in the vehicle, we can still recover the necessary data. If we are unable to clone your module for any reason, we will contact you to discuss options and provide a full refund.
Is this the right fix for a ‘Service Theft Deterrent System’ message?
Yes, a failing BCM is a very common cause of this message and a no-start condition. Because our service clones your original security data, it’s an effective solution for this issue.