Is Your GM Vehicle Acting Possessed? It Could Be The BCM.
If you’re dealing with a frustrating array of electrical gremlins in your 2015 GM truck or SUV, the Body Control Module (BCM) is a primary suspect. This module is the central nervous system for your vehicle’s body electronics, controlling everything from your power windows and locks to your interior lighting and security system. When it fails, it can create bizarre and unpredictable symptoms that are often difficult to diagnose.
Instead of paying for expensive dealership diagnostics and programming, our unique mail-in programming service provides a simple, cost-effective, and reliable solution. We transfer the critical data from your original, failing BCM directly onto a replacement unit. This cloning process ensures that the replacement module is a perfect digital twin of your original, making installation a true plug-and-play experience. No need for special tools or a trip to the dealer—just install the module and turn the key.
From the Diagnostic Bay
We had a 2015 Sierra 1500 come into the shop with the strangest list of complaints I’d seen in a while. The dome light would flicker randomly, the driver’s side window would only work intermittently, and the radio would sometimes refuse to turn off even after the key was removed. The owner had already replaced the battery and checked all the fuses. After connecting our scan tool, we saw multiple communication errors pointing towards a network failure. The culprit? A failing 2015 Silverado BCM. Instead of a costly new module and hours of programming, we performed a data clone just like this service offers. The replacement BCM went in, and every single electrical issue vanished instantly. It’s a common failure, and this service is the most efficient fix.
Common Symptoms of a Failing BCM
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights (headlights, taillights, dome lights) staying on, flickering, or not working.
- ✔ The vehicle’s security system malfunctioning, causing false alarms or preventing the engine from starting.
- ✔ The horn honking randomly or not working when pressed.
- ✔ Dashboard warning lights appearing for no reason (e.g., airbag, ABS).
- ✔ Wipers activating on their own or not responding to the switch.
- ✔ Radio or infotainment system issues, such as not turning off with the ignition.
- ✔ Inconsistent or non-functional key fob operation.
How Our Simple Programming Service Works
Our process is designed to be as straightforward as possible, getting you back on the road with minimal downtime.
- Place Your Order: Complete your purchase through our secure checkout.
- We Contact You: We will reach out using the contact information on your order to provide shipping instructions for sending us your original BCM.
- Ship Your Module: Carefully package and ship your original BCM to our facility.
- We Clone The Data: Upon receipt, our technicians will perform a full data transfer from your original module to the replacement unit.
- We Ship It Back: We ship your newly programmed, ready-to-install BCM back to you, typically within 1-2 business days, and provide you with tracking information.
Post-Installation Notes
While our goal is a 100% plug-and-play installation, some GM vehicles may require minor post-installation procedures. Please be aware of the following:
- Airbag System Sync: If the airbag warning light is illuminated after installation, 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: In some cases, a brake pedal position sensor recalibration may be necessary to ensure correct brake light and traction control functionality.
Always consult a factory service manual or a qualified technician if you are unsure about any step of the installation or post-installation process.
Part Number Compatibility
This service and replacement module are compatible with the following part numbers:
13592137, 13506935, 13506936, 13587704, 13594764
This module fits a wide range of 2015 and newer GM vehicles, including the Silverado, Sierra, Tahoe, Suburban, Yukon, Escalade, Corvette, Impala, CTS, ATS, XTS, and Sonic. Please verify your part number and check the detailed fitment list to ensure compatibility.
Frequently Asked Questions
What exactly is a Body Control Module (BCM)?
The BCM is a computer in your vehicle that manages and controls many of the non-engine related electronic functions. This includes power windows, locks, lights, wipers, security systems, and more. It acts as a central hub for these systems.
Why is cloning my original BCM data necessary?
Your original BCM contains specific data for your vehicle’s VIN and equipped options. Cloning this data to a replacement module makes it a plug-and-play part, avoiding the need for expensive and complex programming at a dealership.
Is this service better than buying a used BCM from a junkyard?
Absolutely. A used BCM from another vehicle will have the wrong VIN and options programmed into it. It will not work correctly without being reprogrammed by a dealer, which often costs more than this service. Our solution guarantees compatibility.
What if the airbag light comes on after I install the BCM?
This is a known possibility. It means the BCM needs to be electronically ‘introduced’ to the airbag module (SDM). A technician with a professional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Do I need to send my keys along with my BCM?
No, you do not need to send your keys. All the necessary security and key information is stored within the BCM itself, which we will transfer to the replacement module.