Restore Your Truck’s Electrical System with a Plug-and-Play Solution
If you’re dealing with bizarre electrical problems in your 2015 Silverado 1500, you know how frustrating it can be. One minute the power windows work, the next they don’t. The security light might be flashing for no reason, or worse, your truck won’t start at all. As a technician with over 20 years of experience, I’ve seen these exact issues hundreds of times. The culprit is almost always a failing Body Control Module (BCM)āthe electronic brain that manages everything from your interior lights and power locks to your vehicle’s security system.
Instead of paying for expensive dealership diagnostics and programming, we offer a simple, reliable fix. This is a replacement BCM that comes fully programmed to your vehicle’s specifications. We accomplish this through a straightforward cloning service: you send us your original BCM, we transfer its essential data to this replacement unit, and ship it right back to you, ready for installation. This process ensures seamless integration with your truckās existing systems, getting you back on the road without the dealership hassle.
A Technician’s Notebook: The Silverado with a Mind of Its Own
A customer brought in a 2015 Silverado 1500 that was driving him crazy. The radio would turn on and off, the dome light would flicker, and occasionally the truck would refuse to crank. He’d already replaced the battery and checked the alternator. After connecting my scan tool, I saw multiple communication error codes (U-codes) pointing to the BCM. These modules are the central hub for so many circuits, and when they fail internally, they create electronic chaos. By installing a pre-programmed 2015 Silverado BCM, we eliminated all the erratic behavior. Itās a perfect example of how one component can cause a dozen different symptoms.
Is Your Truck Showing These Symptoms?
A failing BCM can manifest in many ways. If you’re noticing any of the following, this module is the likely solution:
- ā Power windows or door locks working intermittently or not at all
- ā Interior or exterior lights flickering, staying on, or not turning on
- ā The anti-theft or security light is illuminated on the dash
- ā Intermittent no-start or no-crank condition
- ā False warnings on the instrument cluster (e.g., “Service 4WD” light)
- ā Communication error codes, such as U0140, stored in other modules
- ā Horn honking unexpectedly or not working
Your Straightforward BCM Installation Guide
Installing your programmed BCM is a manageable job for a DIYer. On the 2015 Silverado 1500, the BCM is typically located under the driver’s side of the dashboard, near the steering column.
- Safety First: Always disconnect the negative terminal from your truck’s battery before working on any electronic components.
- Locate the BCM: Remove the lower dash panel beneath the steering wheel to gain access to the module. It’s a black box with several large electrical connectors.
- Disconnect and Remove: Carefully unplug all the wiring harnesses from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors, making sure they click into place.
- Reconnect and Test: Re-install the dash panel and reconnect the negative battery terminal. Start the truck and test all body functionsālights, locks, windows, radio, etc.āto confirm the repair.
Important Post-Installation Notes
While our programming handles the critical vehicle data, some GM systems require a final handshake after installation. Be aware of the following:
- 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 new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure correct brake light and traction control operation.
- No Core Charge: You are not required to return your original module to us. There is no core charge associated with this purchase.
Disclaimer: Vehicle systems can vary. We always recommend consulting a factory service manual or a qualified professional if you are unsure about any procedure.
Verified Fitment for Your GM Vehicle
This BCM is a direct replacement for part number 13506936 and is also compatible with part numbers 13592137, 13506935, 13587704, and 13594764. It is guaranteed to fit the following vehicles:
- 2015 Cadillac ATS, CTS, Escalade, Escalade ESV, XTS
- 2016 Cadillac ATS, CTS
- 2015 Chevrolet Corvette, Silverado 1500/2500/3500, Suburban 1500, Tahoe
- 2015-2016 Chevrolet Impala (New Style)
- 2015-2018 Chevrolet Sonic
- 2015 GMC Sierra 1500/2500/3500, Sierra Denali 1500/2500/3500, Yukon, Yukon XL 1500
Frequently Asked Questions
What exactly does a Body Control Module do?
The BCM acts as the central computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, the security system, wipers, and the horn.
Why is your cloning service the best option?
Our service saves you significant money and time. A new BCM from a dealership requires costly programming with their proprietary tools. Our service delivers a module that is already programmed with your truck’s specific data, making it a simple plug-and-play replacement.
How long does the programming and shipping process take?
Once we receive your original BCM, we typically program the replacement and ship it back out within 1-2 business days. We will provide you with tracking information as soon as it ships.
Do I need to send my keys along with my old BCM?
No, we do not need your keys. All the necessary security and vehicle information is stored within the BCM itself, which is what we transfer to the new unit.
What if the airbag light comes on after I install the new BCM?
This is not uncommon. It simply means the new BCM needs to be electronically introduced to the airbag module. A repair shop with a professional-grade scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Is there a core charge for this part?
No, there is no core charge. After we clone the data, you are free to keep your original module.