Restore Your Tahoe’s Electrical System with a Plug-and-Play BCM
If you’re dealing with baffling electrical issues in your 2015 Chevrolet Tahoe—like flickering lights, a dead instrument panel, or power accessories that have a mind of their own—a failing Body Control Module (BCM) is the most likely culprit. The BCM is the central nervous system for your vehicle’s comfort and convenience features. When it fails, it can create frustrating and unpredictable problems. This isn’t just an inconvenience; it can affect vehicle security and safety systems. Forget the expensive trip to the dealership for programming. We offer a simple, reliable solution: a fully programmed BCM that’s ready for installation right out of the box.
From the Diagnostic Bay: The Case of the Haunted SUV
I remember a customer bringing in a 2015 Suburban, a sister vehicle to the Tahoe, with a list of complaints that sounded like something out of a ghost story. The radio would turn on and off, the dome lights would flicker while driving, and the key fob worked only half the time. He’d already replaced the battery and checked all the fuses. A quick scan with my diagnostic tool revealed a slew of U-codes, specifically U0140 (Lost Communication With Body Control Module). This pointed directly to a faulty BCM. Instead of a costly replacement and programming session at the dealer, we used our cloning service. We transferred the data from his original, failing module to one of our quality-tested units. He had his Suburban back the next day, fully functional, for a fraction of the dealership’s quote. This is the exact service we offer here—a proven, real-world fix.
Common Signs of a Failing GM Body Control Module
A failing BCM can manifest in numerous ways. As the central hub for dozens of electronic functions, its failure can cause a chain reaction of problems. Here are some of the most common symptoms I’ve seen in my 20+ years of diagnostics:
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security system engaging randomly or the alarm sounding for no reason.
- ✔ Key fob failing to lock or unlock the doors.
- ✔ Instrument cluster gauges behaving erratically or going completely dark.
- ✔ Diagnostic Trouble Codes (DTCs) related to communication errors, such as U0140, U0155, or B1325.
- ✔ A no-start condition where the engine cranks but won’t fire up due to a security system fault.
How Our Simple Cloning Service Works
Our goal is to make this repair as seamless as possible. There’s no need for you to find a specialized shop or pay for expensive programming tools. The process is straightforward:
- Place Your Order: Purchase this BCM listing.
- We’ll Contact You: We will reach out using the contact information on your order to provide shipping instructions for your original BCM.
- Ship Us Your Module: Carefully package and send your original BCM to our facility.
- We Handle the Rest: Upon arrival, our technicians will transfer all the critical data—including VIN, key information, and vehicle-specific options—from your module to this replacement unit.
- Receive Your Ready-to-Install BCM: We ship the programmed BCM back to you. Once it arrives, it’s ready for a direct swap. No extra steps, no dealer visits.
A Straightforward Guide to Your BCM Swap
Installing your new BCM is a manageable job for a DIY enthusiast or any professional mechanic. While the exact location can vary slightly, it’s typically found under the steering column on the driver’s side.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On most 2015 Tahoe and similar GM trucks/SUVs, the BCM is located under the driver’s side of the dashboard, often attached to a bracket near the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount the replacement BCM in the same location and securely reconnect all the electrical connectors. You should hear a click as they lock into place.
- Reconnect Power: Re-attach the negative battery terminal.
- Test All Functions: Start the vehicle and test all body functions: lights, windows, locks, radio, and wipers to confirm the repair was successful.
Important Post-Installation Information
Because our service clones your vehicle’s original data, most functions will work immediately. However, in some cases, certain safety systems may require a quick sync-up procedure.
- ✔ Airbag System Sync: If the airbag warning light is illuminated after installation, a simple “Setup SDM Primary Key in BCM” procedure is needed. This requires a professional-grade scan tool to sync the BCM with the airbag module (SDM) and clear the light.
- ✔ Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure your brake lights and traction control system function correctly. This is also performed with a diagnostic tool.
- ✔ No Core Charge: You can keep your original module. There is no core charge or need to send it back after the service is complete.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or a certified technician if you are unsure about any procedure.
Verified Fitment for Your GM Vehicle
This BCM is a direct replacement for several part numbers and fits a wide range of General Motors vehicles. Please verify your part number or vehicle model from the list below. This module is compatible with part numbers: 13594692, 13594768, 13593214, 13580690, 13591519, and 13594769.
- ATS: 2014
- CAPRICE / SS CAPRICE: 2014-2017
- CORVETTE: 2014
- CTS: 2014 (Sdn, VIN A)
- ESCALADE / ESCALADE ESV: 2015
- IMPALA: 2015-2019
- SIERRA 1500 / DENALI 1500: 2014
- SIERRA 2500 / 3500 / DENALI 2500 / DENALI 3500: 2015
- SILVERADO 1500: 2014
- SILVERADO 2500 / 3500: 2015
- SUBURBAN 1500: 2015
- TAHOE: 2015
- XTS: 2014
- YUKON / YUKON XL 1500: 2015
Frequently Asked Questions
What if my original BCM is completely dead or not communicating?
In most cases, even if the BCM is not functioning in the vehicle, we can still extract the necessary data for the cloning process. Please contact us with details about your module’s condition if you have concerns.
How long does the programming service take?
Our service is fast. We typically program and ship your replacement BCM within 1-2 business days of receiving your original module.
Is this a guaranteed fix for my vehicle’s problems?
This BCM will fix issues caused by a faulty Body Control Module. While the symptoms listed are very common for BCM failure, you should always perform proper diagnostics to confirm the BCM is the root cause before ordering.
Do I need to send my keys with the BCM?
No, you do not need to send your keys. Our cloning process transfers all the necessary security information directly from your old BCM to the new one, so your existing keys will work perfectly.
Will I need a special tool for the post-installation procedures?
Yes, if the Airbag System Sync or Brake Pedal Position Relearn is required, it must be done with a professional-grade bidirectional scan tool. Most local repair shops have this equipment if you do not.