Restore Your Vehicle’s Brain Without the Dealer Headache
Are you battling bizarre electrical issues in your 2015-2020 Chevrolet Impala or other GM vehicle? Flickering lights, malfunctioning power windows, a security system that has a mind of its own, or intermittent starting problems are classic signs of a failing Body Control Module (BCM). As a technician with over 20 years of diagnostic experience, I’ve seen how a faulty BCM can turn a reliable vehicle into a source of daily frustration. The BCM is the central command center for your car’s body electronics, and when it fails, chaos ensues. Dealerships often quote exorbitant prices for a new module plus mandatory programming fees. Our service bypasses that completely.
We offer a straightforward and cost-effective solution: a professionally programmed replacement BCM. This isn’t just a part in a box; it’s a comprehensive service. You simply send us your original BCM, and we meticulously transfer all of its critical data—including VIN, mileage, and key information—to a fully tested replacement module. The part you receive back from us is a true plug-and-play component, ready for installation without any need for expensive dealer-specific scan tools. This process ensures seamless integration with your vehicle’s existing systems.
From the Diagnostic Bay: The Case of the Haunted Impala
I remember a 2017 Impala that came into the shop with what the owner called “ghosts in the machine.” The dome lights would stay on, the radio would randomly change stations, and the car wouldn’t start every third or fourth try. He’d already spent a few hundred dollars on a new battery and alternator with no success. After a quick network scan, I saw multiple communication codes pointing to the BCM (U0140 was a big one). The dealer quoted him over $900 for a new module and programming. Instead, we used our cloning service. He had the programmed module back in a few days, installed it himself in under an hour, and the car has been flawless ever since. This is the exact, reliable fix we provide to you.
Common Signs of a Failing GM BCM
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, door locks, or security system acting unpredictably.
- ✔ Intermittent no-start or no-crank conditions where the battery and starter are known to be good.
- ✔ Warning messages on the dash like “Service Theft Deterrent System.”
- ✔ Diagnostic trouble codes (DTCs) related to communication loss with the BCM, such as U0140.
- ✔ Horn honking randomly or not working at all.
A Straightforward Guide to Installation
- ✔ Remove Your Original BCM: On most Impalas, the BCM is located on the left (driver’s) side of the dash. Disconnect the negative battery terminal first. Then, carefully unclip the wiring harness connectors and unbolt the module.
- ✔ Ship Your Module: Securely package your original BCM and ship it to us using a trackable service.
- ✔ Cloning Process: Once we receive your module, our technicians will perform the data transfer to the replacement unit, typically within one business day.
- ✔ Install Your Programmed BCM: We ship both your original and the newly programmed BCM back to you. Simply bolt the replacement module in, reconnect the harnesses, and reconnect your battery. The job is done!
Important Post-Installation Information
While our goal is a 100% plug-and-play experience, some GM vehicles may require a simple relearn procedure after installation. This is standard for the vehicle’s systems and not a defect in the part. Key potential procedures include:
- Airbag System Sync: If you see an airbag warning light, 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: To ensure correct brake light and traction control operation, a brake pedal position sensor recalibration may be needed on certain models.
Disclaimer: Always refer to a factory service manual for your specific vehicle for the most accurate procedures. There is no core charge for this service; you can keep your original module.
Will This Fit My Vehicle?
This BCM programming service is compatible with units matching part numbers 13594692, 13594768, 13593214, 13580690, 13591519, or 13594769. It fits a wide range of vehicles, including:
- Chevrolet Impala: 2015-2019
- Chevrolet Silverado 1500/2500/3500: 2014-2015
- GMC Sierra 1500/2500/3500 & Denali: 2014-2015
- Chevrolet Suburban / Tahoe: 2015
- GMC Yukon / Yukon XL: 2015
- Cadillac Escalade / ESV: 2015
- Chevrolet Corvette: 2014
- Chevrolet SS / Caprice: 2014-2017
- Cadillac ATS / CTS / XTS: 2014
Please verify your part number or contact us to confirm compatibility for your specific vehicle and options.
Frequently Asked Questions
Frequently Asked Questions
Is this BCM truly plug-and-play?
Yes. Because we clone the data from your original module, the replacement we send you will not require any additional programming to start the car and run. In some cases, minor relearn procedures for systems like the airbag or brake sensor may be needed, as noted above.
What if my original BCM is completely dead or not communicating?
In many cases, even if the BCM is failing, we can still extract the necessary data. Please contact us before ordering if your module is completely non-responsive, has water damage, or has been damaged by fire so we can discuss the options.
What data is transferred during the cloning process?
We transfer all the vehicle-specific information required for proper function, including the Vehicle Identification Number (VIN), immobilizer/key data, mileage, and option configurations for features like power seats, lighting, and more.
How long does the programming service take?
We typically complete the cloning process within 24 hours of receiving your module. Your total turnaround time will depend on shipping times to and from our facility.
Do I need to send my keys with the module?
No, you do not need to send us your keys. All the necessary security information is stored within the BCM itself, and our cloning process transfers it directly.
Is there a core charge or do I need to return my old BCM?
There is absolutely no core charge. We will ship your original module back to you along with the programmed replacement. You can keep it as a spare or for your records.