Is Your GM Vehicle Plagued by Bizarre Electrical Problems?
The Body Control Module, or BCM, is the central command center for your vehicle’s electronic accessories. It manages everything from your power windows and locks to your interior lights, security system, and instrument cluster. When the BCM starts to fail, it can create a cascade of confusing and frustrating symptoms that seem completely unrelated. One moment your wipers might turn on by themselves, and the next, your radio might shut off without warning. If you’re tired of chasing electrical gremlins, a faulty BCM is the likely culprit.
Diagnosing a Failing 2015 Tahoe Body Control Module
A failing BCM doesn’t always trigger a check engine light, making it difficult to diagnose. Instead, you’ll notice a pattern of strange electrical behavior. This module is the solution for a wide range of GM vehicles experiencing these issues.
Common Symptoms of a Bad BCM
- ✔️ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔️ Interior dome lights, dash lights, or headlights flickering, staying on, or not turning on.
- ✔️ The vehicle’s security system engaging randomly or preventing the car from starting.
- ✔️ Horn, windshield wipers, or other accessories activating on their own.
- ✔️ Instrument panel gauges behaving erratically or going dead.
- ✔️ Communication errors with the BCM when using a diagnostic scan tool.
- ✔️ HVAC (heating and air conditioning) controls not responding correctly.
The Simple, No-Dealership-Required Solution
Replacing a BCM isn’t as simple as swapping the part. A new or used module from another vehicle must be programmed by a dealership to your vehicle’s specific VIN and options, a process that is often costly and time-consuming. Our professional cloning service completely eliminates this step. We transfer the critical data from your original, failing BCM directly onto a replacement unit. The module you receive back from us will be 100% plug-and-play, just like the original was before it failed.
How The Programming Service Works:
- ✔ Place Your Order: Complete your purchase through our secure checkout.
- ✔ Receive Instructions: We will contact you via email or phone with detailed instructions on how to remove and ship your original BCM to us.
- ✔ Ship Your Module: Package your original BCM securely and send it to our facility.
- ✔ We Clone The Data: Our expert technicians will perform a full data transfer, copying your vehicle’s VIN, mileage, key information, and RPO codes to the replacement module.
- ✔ Receive Your Ready-to-Install BCM: We ship the plug-and-play replacement module back to you, typically within 1-2 business days of receiving your original.
Installation & Post-Install Procedures
On most compatible vehicles, including the 2015 Tahoe, the BCM is located under the driver’s side of the dashboard, near the steering column. Installation is as simple as disconnecting the battery, unplugging the electrical connectors from the old module, and plugging them into your new one. After installation, please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is required. This syncs the new BCM with the airbag system and must be done with a professional-grade diagnostic tool.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be needed to ensure proper function of the brake lights and stability control systems.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Guaranteed Fitment & Compatibility
This service is for BCM part number 13594769 and is a direct replacement for the following part numbers: 13594692, 13594768, 13593214, 13580690, and 13591519. It is compatible with a wide range of GM trucks, SUVs, and cars from 2014-2019. Please verify your part number before ordering.
Frequently Asked Questions
What exactly is a Body Control Module (BCM)?
The BCM is a computer in your vehicle responsible for monitoring and controlling various electronic accessories that are not related to the engine. This includes power windows, locks, lights, wipers, the security system, and more.
Why is this cloning service better than buying a used BCM?
A used BCM from another vehicle contains the wrong VIN and security information. It will not work correctly and will likely prevent your vehicle from starting until it is reprogrammed by a dealer. Our cloning service makes the replacement module an exact electronic match to your original, ensuring a true plug-and-play installation with no extra costs.
How long does the service take once you receive my module?
We typically complete the data transfer and prepare your replacement module for shipment within 1-2 business days of receiving your original BCM.
What if my original BCM is too damaged to be read?
In the vast majority of cases, even with significant electrical failure or water damage, we can still retrieve the necessary data. If for any reason we cannot read your module, we will contact you to discuss options and provide a full refund if we cannot proceed.
Do I need to send my keys or any other parts?
No, you only need to send us your original Body Control Module. All the necessary key and security data is stored within the module itself, which we will transfer to the replacement.
Will my vehicle’s mileage be correct after I install the new BCM?
Yes. The vehicle’s mileage is one of the key data points we transfer from your original module. Your odometer will display the correct mileage.