Fix Frustrating Electrical Problems with a Plug-and-Play BCM Solution
Are you chasing electrical gremlins in your 2015 GMC Sierra? Flickering lights, power windows with a mind of their own, or dashboard warnings that come and go are classic signs of a failing Body Control Module (BCM). As the central computer for your truck’s comfort and convenience features, a faulty BCM can make driving a nightmare. Forget the expensive trip to the dealership and the hassle of programming. This is a direct, reliable solution that gets your truck back to 100%.
We offer a straightforward programming service for this replacement BCM. Simply send us your vehicle’s original module, and we’ll professionally transfer all its critical dataāincluding VIN, mileage, and vehicle-specific optionsāto this replacement unit. When you receive it back, it’s ready for a simple plug-and-play installation. This process is the most effective way to ensure seamless integration without causing new issues.
From the Diagnostic Bay: The Case of the Haunted Sierra
A customer brought in a 2015 Sierra 1500 with some of the most bizarre symptoms I’ve seen. The radio would randomly shut off, the dome light would flicker while driving, and the driver’s side power window would only work intermittently. He’d already replaced the battery and checked all the fuses. After connecting my scan tool, I found a slew of U-codes (communication errors) pointing to the 2015 Sierra BCM. Instead of putting in a new module and spending hours trying to program it at the dealer, we opted for a cloned BCM. We transferred the data from his failing original, and once the replacement was installed, every single issue vanished. It’s a testament to how effective this service is for a quick and complete repair.
Is Your Truck Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re noticing any of the following, it’s a strong indicator that your Body Control Module needs attention:
- ā Erratic or non-functional interior and exterior lights.
- ā Power windows, door locks, or mirrors not working correctly.
- ā The security system or keyless entry acting up or not responding.
- ā False warning messages on the instrument cluster (e.g., ‘Service Theft Deterrent System’).
- ā Diagnostic trouble codes (DTCs) related to communication, such as U0140, U0155, or other U-codes.
- ā Unexplained battery drain when the vehicle is off.
A Straightforward Guide to Installation
Installing your programmed BCM is a manageable job for a DIYer or any professional technician. While the exact location can vary slightly, it’s typically found under the driver’s side of the dashboard.
- Safety First: Always disconnect the negative terminal from your truck’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On most 2015 Sierra and Silverado models, the BCM is located under the steering column, often attached to a larger junction block.
- Disconnect and Remove: Carefully unplug the multiple wiring harnesses connected to the module. They have locking tabs that need to be depressed. Once disconnected, unclip or unbolt the module from its mounting bracket.
- Install the Replacement: Seat the new, programmed BCM into the mounting bracket and securely reconnect all wiring harnesses. You should hear a ‘click’ as they lock into place.
- Reconnect Power: Reattach the negative battery terminal. Your installation is now complete.
Important Post-Installation Information
Our cloning service makes this a nearly plug-and-play process. However, in some GM vehicles, a couple of simple relearn procedures may be needed after installation. These are not signs of a defective part but are standard vehicle security and safety handshakes.
- Airbag System Sync: If the airbag light is on after installation, a technician will need to perform the ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool. This syncs the airbag system with the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure perfect brake light and traction control operation.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Guaranteed Fitment for Your GM Vehicle
This module is a direct-fit replacement for several part numbers and models. Please verify your original part number or consult the list below. This unit is compatible with part numbers: 13592137, 13506935, 13506936, 13587704, and 13594764.
This part will fit these makes and models with these options:
IMPALA 15-16 VIN 1 (New Style), (LH dash), ID 13587704
SIERRA/SILVERADO 1500 PICKUP 15 (under steering column)
SIERRA/SILVERADO 2500/3500 PICKUP 15 (under steering column or LH firewall), ID 13587704
SIERRA DENALI 1500/2500/3500 15 (under steering column)
SUBURBAN/TAHOE/YUKON/YUKON XL 15 (under steering column), w/model year break point (opt AVF)
ESCALADE/ESCALADE ESV 15 (under steering column), w/model year break point (opt AVF)
XTS 15 (left front hinge pillar)
ATS 15-16 (on firewall), may require ID 13587704
CTS 15-16 Sdn, (LH dash), may require ID 13587704
SONIC 15-18 (RH rear quarter panel)
Frequently Asked Questions
Why is your cloning service better than buying a new BCM?
Our cloning service transfers your truck’s exact software and security data. This eliminates the need for expensive and time-consuming dealership programming, which is required for a brand new module. It’s a faster, more cost-effective, and reliable solution.
How long does the programming service take?
We typically program and ship your replacement BCM within 24-48 hours of receiving your original module. We’ll provide you with tracking information as soon as it’s on its way back to you.
Do I need to program my keys again after installation?
No. Because we clone all the data from your original module, the replacement BCM will recognize your existing keys. This is a major benefit that saves you a lot of hassle.
What if my original BCM is completely dead or not communicating?
In many cases, even if the BCM is not functioning in the vehicle, we can still extract the necessary data from the memory chip. Please contact us before ordering if your module is severely damaged by water or fire.
Is there a core charge for this part?
No, there is no core charge. We need your original module to perform the programming service, but you are welcome to keep it afterward.