Is Your GM Vehicle Plagued by Bizarre Electrical Problems?
The Body Control Module (BCM) is the central command center for your vehicle’s body electronics. It manages a vast array of functions, from your power windows and door locks to the interior lights, security system, and even communication between other modules. When the BCM starts to fail, it can create a cascade of confusing and frustrating issues that can be difficult to diagnose. You might experience flickering lights, a security system that won’t disarm, or accessories that work intermittently. This isn’t just an inconvenience; it can affect the safety and reliability of your vehicle.
From the Diagnostic Bay
We recently had a 2015 Silverado in the shop with a classic case of BCM failure. The owner reported the radio would cut out randomly, the dome lights would flicker while driving, and sometimes the truck wouldn’t recognize the key fob. A visual inspection under the dash revealed signs of water intrusion near the BCM connectorsāa common cause of failure. After confirming the diagnosis, instead of sending him to a dealership for a costly new module and programming, we provided a replacement BCM with his original unit’s data cloned over. He installed it in his driveway in under an hour, and every single electrical gremlin was gone. It’s a testament to how a targeted solution can save hundreds in parts, labor, and dealership fees.
Common Symptoms of a Failing BCM
- ā Intermittent or non-functional power windows, door locks, or mirrors.
- ā Interior or exterior lights (headlights, taillights) staying on or not turning on at all.
- ā The security system acting erratically, causing a no-start condition.
- ā Dashboard warning lights appearing for no reason (e.g., airbag, ABS).
- ā Horn, wipers, or radio functioning incorrectly or not at all.
- ā Key fobs not being recognized by the vehicle.
- ā Communication errors when using a diagnostic scan tool.
The Simple, Plug-and-Play Solution for Your 2015-2020 Impala BCM
Forget expensive dealership visits and complex programming procedures. Our professional cloning service provides a seamless and cost-effective solution. We take a replacement BCM, part number 13594769 (interchangeable with 13594692, 13594768, 13593214, 13580690, and 13591519), and transfer the exact configuration, security, and VIN data from your original, failing module. The result is a replacement BCM that is 100% plug-and-play. Simply install it, and your vehicle will be back to normal operation without any additional programming required.
How Our Programming Service Works:
- ā Place Your Order: Complete your purchase through our secure checkout.
- ā We Contact You: We will reach out with clear, simple instructions for shipping your original BCM to our facility.
- ā Send Us Your Module: Package your original BCM securely and ship it to us.
Important Post-Installation Information
While our goal is a 100% plug-and-play experience, certain vehicle systems may require a simple relearn procedure after the new BCM is installed. This is normal and can often be done with a high-end diagnostic tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed to sync the airbag system with the BCM. This is only necessary if the light is on.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be required to ensure proper brake light and traction control functionality.
Please consult a factory service manual or a qualified technician for specific procedures related to your vehicle.
Frequently Asked Questions
What exactly is a BCM cloning service?
It’s a process where we extract the critical dataāsuch as the VIN, security information, and specific vehicle optionsāfrom your original BCM and flash it onto a replacement unit. This makes the new module an exact electronic copy of the old one, eliminating the need for dealership programming.
Do I need to program this module after I receive it?
No. The module arrives pre-programmed and ready for installation. In most cases, it is a simple plug-and-play process. Some vehicles may require minor relearn procedures as noted above, but no full programming is needed.
What if my original BCM is water damaged or not communicating?
In most cases, even with water damage or communication issues, we can still extract the necessary data. Please contact us before ordering if your module is severely damaged (e.g., burnt, broken) to confirm we can perform the service.
How long does the entire process take?
Once we receive your original module, our service is typically completed within 1-2 business days. The total time will depend on the shipping speed you choose to send your module to us and for us to return it.
Does this part fit vehicles other than the Chevy Impala?
Yes. This BCM and service are compatible with a wide range of GM vehicles, including the Sierra, Silverado, Suburban, Tahoe, Corvette, CTS, Escalade, and more. Please check the detailed fitment list on this page to confirm compatibility with your specific model and year.