Restore Full Electrical Function to Your GM Truck or SUV
Are you battling frustrating and unpredictable electrical problems in your vehicle? Flickering lights, malfunctioning power windows and locks, or a security system that has a mind of its own are common signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a cascade of confusing issues. This pre-programmed Body Control Module, compatible with part number 13594692, is the definitive solution to get your truck or SUV back to factory-perfect operation without the exorbitant costs and scheduling hassles of a dealership visit.
The Simple, Plug-and-Play Solution
We’ve streamlined the repair process to be as simple as possible. This isn’t just a replacement part; it’s a comprehensive service. We transfer the critical data from your original, failing BCM directly onto this replacement unit. This cloning process ensures that the replacement module is a perfect match for your vehicle’s specific configuration, retaining all original keys and security information. The result is a truly plug-and-play module. Simply install it, and you’re ready to go—no additional programming or calibration required at a dealership.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights (headlights, taillights, dome lights).
- ✔ Power windows, door locks, or mirrors not working correctly or at all.
- ✔ Vehicle’s security system or keyless entry malfunctioning.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Wipers activating on their own or not responding to the switch.
- ✔ Dashboard warning lights appearing for no reason (e.g., ABS, Airbag, Service Vehicle Soon).
- ✔ A no-start condition where the engine cranks but won’t fire up due to security system confusion.
How Our Programming Service Works
Our process is designed for your convenience:
- Place Your Order: Complete your purchase through our secure checkout. Ensure your contact information is accurate.
- We Contact You: We will reach out with clear, simple instructions on how to ship your original BCM to our facility.
- We Clone Your Module: Once we receive your original BCM, our technicians will professionally extract the vehicle-specific data and flash it onto the replacement module.
- We Ship It Back: We ship your new, plug-and-play BCM back to you, typically within 24-48 hours of receiving your original. You will receive tracking information as soon as it ships.
Diagnosing and Installing Your 2015 Sierra 3500 BCM
The BCM in most compatible GM trucks, including the 2015 Sierra 3500 BCM, is located under the driver’s side of the dashboard, often near the steering column or against the LH firewall. Installation is straightforward for anyone with basic mechanical skills. Disconnect the negative battery terminal, remove the lower dash panel for access, carefully unplug the electrical connectors, and unbolt the module. Installation is the reverse of removal. After installation, you may need to perform a couple of simple relearn procedures as detailed below, but no advanced programming is needed.
Post-Installation Procedures
In some cases, minor system syncs may be required after installation:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This can be done with a professional-grade scan tool and syncs the BCM with the airbag system.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control function, a brake pedal position sensor recalibration might be necessary. This is also performed with a capable diagnostic tool.
Always consult a factory service manual or a qualified technician if you are unsure about any part of the installation or post-install process.
Frequently Asked Questions
What exactly does the Body Control Module do?
The BCM acts as the central computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, security system, and more. When it fails, these systems can behave erratically.
Is this BCM truly plug-and-play?
Yes. Because we clone the data from your original module, this replacement part will be pre-configured for your vehicle’s exact VIN and options. This eliminates the need for expensive dealership programming.
How long does the cloning and shipping process take?
Once we receive your original BCM, the cloning process is typically completed and the replacement module is shipped back out within 24-48 business hours. Total turnaround time depends on shipping speeds to and from our facility.
Do I need to send my keys with the module?
No, you do not need to send your keys. Our cloning process transfers all the original key and security information, so your existing keys will work perfectly with the new module upon installation.
What if the airbag light comes on after I install it?
This can occasionally happen. It simply means the new BCM needs to be synced with the airbag module (SDM). A procedure called ‘Setup SDM Primary Key in BCM’ can be performed by any competent shop with a professional scan tool to resolve this.
Will this fix my specific electrical problem?
This module will correct issues directly caused by a faulty BCM. If you’re experiencing symptoms like erratic lights, non-working power accessories, or security system faults, a failing BCM is the most likely cause.