Restore Your Truck’s Functionality with a Plug-and-Play BCM Solution
If you’re battling bizarre electrical issues in your 2015 Chevrolet Silverado or other compatible GM vehicle, you’ve likely met your match with a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen firsthand how a faulty BCM can turn a reliable truck into a source of constant frustration. It’s the vehicle’s central command for everything from your power windows and door locks to the interior lights and security system. When it fails, chaos ensues. This isn’t just an inconvenience; it can affect vehicle safety and operation.
Instead of facing a massive bill and scheduling hassles at the dealership, our service offers a straightforward, reliable fix. We provide a replacement BCM that is professionally programmed with the data from your original module. You simply send us your factory BCM, we perform a complete data transfer to this replacement unit, and ship it right back to you, ready for installation. This cloning process makes this a true plug-and-play solution, bypassing the need for expensive diagnostic tools or dealer intervention.
Common Signs of a Failing GM Body Control Module
- ✔️ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔️ Interior or exterior lights flickering, staying on, or not turning on.
- ✔️ The security system acting erratically, causing no-start conditions (Service Theft Deterrent System message).
- ✔️ Inconsistent or non-functional radio and infotainment system.
- ✔️ False warning lights on the instrument cluster for various systems.
- ✔️ Communication error codes, such as U0140 (Lost Communication With Body Control Module), stored in the vehicle’s diagnostic memory.
From the Diagnostic Bay
I remember a 2015 Sierra 1500 that came into the shop with what the owner called ‘a case of the flickers.’ The dash lights would randomly dim, the radio would cut out, and the driver’s side window had a mind of its own. He was worried about a complex wiring nightmare. After a quick network test, we pinpointed the BCM as the culprit. The dealership quoted him over $1,100 for a new module plus programming. Instead, we used our mail-in cloning service. He removed the BCM himself, shipped it to us, and we sent back a fully programmed replacement. He plugged it in, and every single issue was gone. It’s a prime example of how this service saves drivers significant time and money.
A Straightforward Guide to BCM Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On most 2015 Silverado and Sierra models, the BCM is located under the driver’s side of the dashboard, near the steering column. Consult a service manual for the exact location on other compatible models.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, remove any bolts or clips holding the module in place and take it out.
- ✔ Install the New Module: Seat your newly programmed BCM in the mounting bracket and secure it. Reconnect all the electrical connectors, ensuring they click firmly into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions: lights, locks, windows, radio, etc., to confirm the repair.
Important Post-Installation Notes
While our programming service makes this a plug-and-play repair, some GM vehicles may require a simple relearn procedure after installation. This is normal. The two most common are:
- Airbag System Sync: If your airbag light is on after installation, a scan tool procedure called ‘Setup SDM Primary Key in BCM’ may be needed to sync the modules.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn might be necessary to ensure correct brake light and traction control operation.
Disclaimer: Always consult a factory service manual or a qualified professional if you are unsure about any step. No core charge is required for this part; you can keep your original module.
Guaranteed Fitment for Your GM Vehicle
This BCM is a direct replacement for part number 13587704 and is also compatible with part numbers 13592137, 13506935, 13506936, and 13594764. It is verified to fit the following vehicles:
- 2015-2016 Chevrolet Impala
- 2015-2016 Cadillac CTS
- 2015-2016 Cadillac ATS
- 2015 Chevrolet Corvette
- 2015 Chevrolet Silverado 1500, 2500, 3500
- 2015 GMC Sierra 1500, 2500, 3500 (including Denali)
- 2015 Chevrolet Tahoe & Suburban 1500
- 2015 GMC Yukon & Yukon XL 1500
- 2015 Cadillac Escalade & Escalade ESV
- 2015 Cadillac XTS
- 2015-2018 Chevrolet Sonic
Frequently Asked Questions
Frequently Asked Questions
How does the programming service work?
After you place your order, we will provide you with instructions to ship your original BCM to our facility. Once we receive it, our technicians will extract the vehicle-specific data and flash it onto the replacement module. We then ship the plug-and-play replacement back to you.
Do I need to send my keys?
No. Because we are cloning all the data from your original module, including the security information, your existing keys will work perfectly with the replacement BCM without any additional programming.
How long does the process take?
We typically program and ship your replacement module the same business day we receive your original BCM. The total turnaround time will depend on shipping times to and from our facility.
Is this a guaranteed fix for my vehicle’s problems?
This part will resolve any issues directly caused by a faulty BCM. It is crucial to have your vehicle properly diagnosed by a qualified mechanic to confirm the BCM is the source of the problem before ordering.
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. Please contact us with the specifics of your module’s failure if you have concerns about its condition.