End the Electrical Chaos in Your GM Vehicle
As a technician with over two decades of experience under the hood, I’ve seen it all when it comes to baffling electrical problems. Your power windows have a mind of their own, the interior lights flicker like a disco, or worse, your car won’t start due to a security system error. These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central hub for your car’s comfort and convenience features, and when it goes bad, it can create a cascade of frustrating, seemingly unrelated issues. This isn’t a part you can just swap out. A new BCM from the dealership requires expensive, vehicle-specific programming. We have a better way.
The Technician-Preferred Solution: Simple & Effective Cloning
Forget about towing your car to the dealer and paying for hours of programming and diagnostics. Our professional cloning service is the most efficient and reliable solution for your 2015-2016 Impala BCM. Here’s how it works: You purchase this module and ship your original BCM to us. Our experts will then transfer all the critical data—including your vehicle’s VIN, security information, and specific options—directly to this replacement unit. We then ship the fully programmed module back to you. The result? A BCM that is 100% plug-and-play, ready for installation right out of the box. No additional programming, no security relearn procedures, and no surprise fees.
A Technician’s Notebook: The Case of the Haunted Sierra
A customer brought in a 2015 Sierra 1500 with a laundry list of complaints: the radio would turn on and off, the dome light wouldn’t work, and the power locks were intermittent. He had already replaced the battery and checked all the fuses. Diagnostics showed a series of U-codes, specifically a U0140 (Lost Communication With Body Control Module). This pointed directly to a BCM failure. Instead of a costly new unit and programming, we used a cloned BCM. The customer simply mailed us his faulty module. We cloned it, sent the replacement back, he plugged it in, and every single electrical gremlin was gone. It’s the exact same seamless service we offer here.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights staying on, flickering, or not working at all.
- ✔ The security system light is on, preventing the engine from starting.
- ✔ The horn honking unexpectedly or the alarm going off randomly.
- ✔ Multiple warning lights on the dashboard (ABS, Airbag, Traction Control).
- ✔ Diagnostic trouble codes (DTCs) related to communication loss, such as U0140, U0155, or B1001.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On the 2015-2016 Impala, the BCM is typically located on the left-hand (driver’s) side of the dashboard. For other models, its location can vary (e.g., under the steering column, on the firewall). Consult a service manual for your specific vehicle if you are unsure.
- ✔ Remove the Old Module: Carefully disconnect all electrical connectors from the original BCM. Note their orientation. Then, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Mount your pre-programmed replacement BCM in the same location. Reconnect all electrical connectors firmly, ensuring they click into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all functions controlled by the BCM: lights, locks, windows, radio, etc., to confirm the repair.
Important Post-Installation Notes
While our cloning service makes this a plug-and-play repair, some vehicle systems may require a ‘handshake’ with the new BCM. This is normal and easily addressed:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a simple “Setup SDM Primary Key in BCM” procedure will be needed. This requires a professional-grade scan tool to sync the modules and clear the light.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure brake lights and stability control systems function correctly.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 13592137, 13506935, 13506936, 13587704, and 13594764. It is confirmed to fit the following GM vehicles:
- 2015-2016 Chevrolet Impala (VIN 1, New Style)
- 2015 Chevrolet Corvette
- 2015-2016 Cadillac ATS, CTS, XTS
- 2015 Cadillac Escalade, Escalade ESV
- 2015 Chevrolet Silverado 1500, 2500, 3500
- 2015 GMC Sierra 1500, 2500, 3500 (including Denali)
- 2015 Chevrolet Suburban 1500 & Tahoe
- 2015 GMC Yukon & Yukon XL 1500
- 2015-2018 Chevrolet Sonic
Always verify your BCM’s location and match the part number from your original module to ensure compatibility.
Frequently Asked Questions
What exactly is a “cloning” service?
Cloning is a process where we transfer the complete software and vehicle-specific data (like VIN and security keys) from your original BCM to this replacement unit. This makes the new part an exact digital copy of your old one, eliminating the need for any dealership programming.
Do I need to do any programming or a security relearn after installation?
No. Because we clone your original module’s data, this BCM will be 100% plug-and-play. Just install it, and you’re ready to go.
How long does the programming service take?
We typically program and ship your replacement module the same business day we receive your original BCM. We’ll provide you with return tracking information as soon as it ships.
What if my original BCM is completely dead or not communicating?
In most cases, even if the BCM is failing, we can still extract the necessary data. Please contact us with the specifics of your situation before ordering if your module is severely damaged by water or fire.
Is there a core charge or do I need to return my old part?
There is no core charge. We only need your original module for the cloning process. You can keep it afterward, though it will no longer be functional for your vehicle.