Restore Your Tahoe’s Electrical System with a Hassle-Free Solution
If you’re dealing with bizarre electrical issues in your 2015 Chevy Tahoe—like power windows with a mind of their own, flickering dashboard lights, or a vehicle that refuses to start—you’re likely facing a failing Body Control Module (BCM). As the nerve center for your vehicle’s comfort and convenience features, a faulty BCM can create a cascade of frustrating and unpredictable problems. Dealerships often quote astronomical prices for a replacement and programming, but there’s a smarter, more affordable way to get your truck back to normal.
This is a complete, plug-and-play solution. We provide a fully functional replacement BCM that is professionally programmed using the data from your original module. The process is simple: after your purchase, we’ll provide instructions to ship your original BCM to our facility. Our expert technicians will then clone all the essential information—including VIN, mileage, and key data—onto this replacement unit. We ship it back to you, ready for installation, eliminating the need for expensive scan tools or a trip to the dealer. It’s the most reliable way to solve your BCM problems for good.
A Technician’s Notebook: The Case of the Haunted SUV
I once had a 2015 Suburban (which uses the same platform as the Tahoe) come into my shop with the strangest symptoms. The owner said the radio would switch stations randomly, the interior lights would pulse, and occasionally the alarm would go off for no reason. He’d been to two other shops that couldn’t find the issue. After hooking up my diagnostic tool, I saw a flurry of communication error codes (like U0140 – Lost Communication With Body Control Module). Instead of a specific sensor failure, the entire network was unstable. This pointed directly to the BCM. By providing a cloned 2015 Tahoe BCM, we restored stable communication across all modules, and all the “haunting” electrical gremlins vanished instantly. It’s a classic failure pattern for these vehicles.
Is Your Vehicle Showing These Symptoms?
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior dome lights or exterior lamps staying on or not turning on.
- ✔ The security system acting up, preventing the vehicle from starting.
- ✔ False warning messages on the instrument cluster (e.g., “Service Theft Deterrent System”).
- ✔ Unresponsive key fob or push-to-start system.
- ✔ Diagnostic trouble codes related to communication loss with the BCM (e.g., U0140, U0155).
Your Straightforward Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On a 2015 Tahoe, the BCM is typically located under the steering column, behind the lower dash panel. You may need to remove a few plastic trim pieces for access.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from your old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all the electrical harnesses. Ensure they click into place.
- ✔ Reconnect Power: Reattach the negative battery terminal.
- ✔ Perform Final Checks: Start the vehicle and test all body functions—windows, locks, lights, radio, etc.—to confirm the repair. See the post-installation notes below for potential relearn procedures.
Important Post-Installation Information
While our cloning service makes this a near plug-and-play repair, some GM security and safety systems may require a handshake with the new module. If you encounter either of these issues, a professional scan tool will be needed to perform the final sync:
- Airbag System Sync: If the airbag warning light is illuminated after installation, the ‘Setup SDM Primary Key in BCM’ procedure is required to sync the systems.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be needed to ensure correct brake light and traction control operation.
Guaranteed Fitment for Your GM Vehicle
This module is a direct replacement for part number 13506936 and is also compatible with part numbers 13592137, 13506935, 13587704, and 13594764. It is confirmed to fit the following vehicles:
- 2015-2016 ATS
- 2015-2016 CTS
- 2015 Corvette
- 2015 Escalade / Escalade ESV
- 2015-2016 Impala (New Style)
- 2015-2018 Sonic
- 2015 Sierra 1500 / 2500 / 3500 & Denali Models
- 2015 Silverado 1500 / 2500 / 3500
- 2015 Suburban 1500
- 2015 2015 Tahoe BCM
- 2015 Yukon / Yukon XL 1500
- 2015 XTS
Please verify your original part number and vehicle model to ensure compatibility. Module location can vary by model.
Frequently Asked Questions
How does the cloning service work?
After you place your order, we will contact you with simple instructions to mail your original BCM to us. Once we receive it, we transfer all the critical vehicle data to the replacement module and ship it back to you the same or next business day.
Do I need to have this programmed by a dealer?
No. Our programming service means the module arrives ready to install. This saves you from needing expensive dealer-specific programming tools or paying for their labor.
Is there a core charge?
No, there is no core charge. We use your original module for data cloning only. You can keep your old part.
What if my original BCM is completely dead or not communicating?
In many cases, even if the BCM is failing, the memory chip containing your vehicle’s data is still readable. Please contact us before ordering if your module is severely damaged by water or fire.
Will this fix my specific problem?
This part corrects issues directly caused by a faulty BCM. If you are experiencing erratic lights, locks, windows, or security system faults, a failing BCM is the most common cause. Proper vehicle diagnosis is always recommended.