Restore Full Functionality to Your GM Truck or Car
Is your 2015 GMC Sierra 2500, Chevy Silverado, or other compatible GM vehicle experiencing bizarre electrical issues? The Body Control Module, or BCM, is the central nervous system for your vehicle’s electronic accessories. It manages everything from your power windows and door locks to the interior lighting, security system, and even aspects of the climate control. When it begins to fail, it can cause a cascade of frustrating and seemingly unrelated problems. This replacement Body Control Module, part number 13506936, is the definitive solution to restore your vehicle’s electronic systems to perfect working order.
This is not just a part; it’s a complete service. We simplify the repair process by providing a BCM that is programmed specifically for your vehicle using the data from your original module. This cloning service eliminates the need for expensive and time-consuming trips to the dealership for programming. The module you receive will be a direct, plug-and-play replacement, retaining all your vehicle’s original settings, key fob programming, and factory options.
From the Diagnostic Bay
We had a 2015 Silverado 1500 come into the shop with a classic ‘phantom’ battery drain. The owner had already replaced the battery twice and the alternator once, but every few days, the truck would be dead. After checking all the usual suspects, we hooked up an ammeter and started pulling fuses. When we pulled the BCM fuse, the parasitic draw dropped to almost zero. A failing BCM was keeping several circuits awake long after the key was off, slowly draining the battery. We performed a cloning service on a replacement BCM, just like this one. The customer was thrilled that a single, correctly diagnosed part solved a problem that had cost him over a thousand dollars in incorrect repairs.
Common Symptoms of a Failing BCM
A faulty Body Control Module can manifest in numerous ways. If you’re experiencing any of the following issues, your BCM is the likely culprit. A failing 2015 Sierra 2500 BCM can be difficult to diagnose, but these symptoms are strong indicators:
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Interior or exterior lights (headlights, dome lights, dash lights) staying on, flickering, or not turning on.
- ✔ The vehicle’s security system or alarm malfunctioning or engaging randomly.
- ✔ Key fobs that suddenly stop working or work unreliably.
- ✔ Inaccurate or erratic gauge readings on the instrument cluster.
- ✔ Problems with the radio, climate control, or windshield wipers.
- ✔ A persistent parasitic battery drain that kills your battery overnight.
- ✔ “Service StabiliTrak,” “Service Traction Control,” or other warning messages on the dash.
How Our Simple Cloning Service Works
Getting your truck back on the road is a straightforward, three-step process:
- Purchase This Service: Complete your order online. Ensure your contact information is accurate, as we will reach out to coordinate the next steps.
- Ship Us Your Original BCM: Carefully remove your original Body Control Module from your vehicle. Package it securely and ship it to us. We will provide the shipping address and instructions after your purchase.
- Receive Your Programmed Replacement: Once we receive your module, our technicians will professionally transfer all the critical data (VIN, mileage, key data, options) to this replacement unit. We then ship the ready-to-install BCM back to you, typically within 1-2 business days, and provide you with tracking information.
Post-Installation Procedures
Because this module is a direct clone of your original, installation is as simple as plugging it in. However, in some GM vehicles, certain systems may require a quick recalibration to sync with the ‘new’ module. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the airbag system with the BCM and clear the light.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure proper brake light and traction control functionality. This is also performed with a capable diagnostic tool.
Always consult a factory service manual or a qualified technician for vehicle-specific guidance.
Guaranteed Fitment
This 2015 Sierra 2500 BCM is a direct replacement for several part numbers and fits a wide range of General Motors vehicles. Please verify that your original module’s part number is on this list:
Compatible Part Numbers: 13592137, 13506935, 13506936, 13587704, 13594764
This part will fit these makes and models with these options:
ATS (15-16), CORVETTE (15), CTS (15-16), ESCALADE / ESV (15), IMPALA (15-16), SIERRA 1500 / 2500 / 3500 (15), SIERRA DENALI 1500 / 2500 / 3500 (15), SILVERADO 1500 / 2500 / 3500 (15), SONIC (15-18), SUBURBAN 1500 (15), TAHOE (15), XTS (15), YUKON / YUKON XL 1500 (15). Please refer to the detailed fitment list in the product description for specific location and ID requirements.
Frequently Asked Questions
How does the cloning service work?
You purchase this service and ship your original BCM to us. We extract the vehicle-specific data (VIN, keys, mileage, etc.) and flash it onto the replacement module. We then ship the programmed module back to you, ready for plug-and-play installation.
Will I need to have this BCM programmed by a dealer?
No. The entire purpose of our service is to bypass the need for dealer programming. The module you receive will be pre-programmed with your vehicle’s data, making it a simple swap.
How long does the process take?
Once we receive your original module, our programming service typically takes 1-2 business days. The total time will depend on shipping times to and from our facility. We will send you tracking information once your replacement module is on its way back to you.
Where is the BCM located on my 2015 Sierra 2500?
On the 2015 GMC Sierra 2500, the Body Control Module is typically located on the driver’s side, either under the steering column attached to the dash support or on the LH firewall. Always disconnect the battery before attempting removal.
What if my original BCM is completely dead or non-communicative?
In many cases, we can still recover the necessary data even from a module that is not functioning in the vehicle. Please contact us before ordering if your module has severe water or fire damage, as data recovery may not be possible in those rare instances.