Solve Your Truck’s Electrical Gremlins for Good
If you’re dealing with a frustrating array of electrical issues in your 2013 Chevrolet Silverado 2500 or other GM truck, a failing Body Control Module (BCM) is often the culprit. As the central command for your vehicle’s body electronics, a faulty BCM can cause chaos—from flickering lights and a dead HVAC system to security alerts and even no-start conditions. This replacement module, part number 15263363, is the definitive solution to restore your truck’s factory functions and reliability.
We make the repair process simple with our professional Cloning Service. Instead of shipping you a blank module that requires an expensive trip to the dealership for programming, we transfer the essential data from your original BCM directly to this new unit. The result is a true plug-and-play component that is ready for installation right out of the box, saving you hundreds in programming fees and vehicle downtime.
Case Study: A Tricky Diagnosis
A customer brought in his ’11 Sierra 2500 with the classic symptoms: the radio would turn off randomly, the airbag light was on (with a stubborn DTC B1001), and the power locks worked only half the time. He’d already replaced the battery and checked the main grounds. After confirming power and ground at the BCM connector, we suspected an internal failure. With our cloned replacement 2013 Silverado 2500 BCM, the locks and radio were fixed instantly. The airbag light remained, but as we expected, a quick ‘Setup SDM Primary Key’ procedure with our scan tool cleared it for good. It’s a textbook example of how a failing BCM can create multiple, seemingly unrelated problems.
Is Your Truck Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the solution you need:
- ✔ Unresponsive or erratic power windows, door locks, or interior/exterior lights.
- ✔ HVAC controls not working or the blower motor functioning intermittently.
- ✔ An active airbag warning light, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- ✔ Vehicle security system malfunctions, causing starting issues or random alarm activation.
- ✔ Communication errors with other modules, leading to a host of other DTCs.
- ✔ Poor ground symptoms that persist even after cleaning chassis ground points.
A Straightforward Guide to Installation
Getting your truck back to normal is easier than you think. For most DIYers and professional mechanics, this is a quick job. Follow these steps for a successful installation:
- Step 1: Safety First. Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Step 2: Locate the BCM. On most GM trucks and SUVs of this era, the BCM is found under the driver’s side dashboard, near the steering column.
- Step 3: Swap the Modules. Carefully disconnect the electrical connectors from your old BCM and remove it from its mounting bracket. Install the new, cloned module in its place and securely re-attach all connectors.
- Step 4: Reconnect and Test. Reconnect the negative battery terminal. Start the vehicle and test all body functions—lights, locks, windows, wipers, and HVAC—to confirm the repair.
- Step 5: Perform Post-Install Procedures. If the airbag light is on, an ‘Airbag System Sync’ (Setup SDM Primary Key) will be needed using a compatible professional scan tool. A ‘Brake Pedal Position Relearn’ may also be required on some models.
Verified Vehicle Compatibility
This module is a direct replacement for part number 15263363 and interchanges with several other part numbers, including 25844480, 25835966, 20939137, and 22860591. It is guaranteed to fit the following vehicles:
ESCALADE 07-11
ESCALADE ESV 07-11
ESCALADE EXT 07-11
SIERRA 1500 PICKUP 07-11
SIERRA 2500 PICKUP 07-13
SIERRA 3500 PICKUP 07-13
SIERRA DENALI 07-11
SIERRA DENALI 2500 11-13
SIERRA DENALI 3500 11-13
SILVERADO 1500 PICKUP 07-11
SILVERADO 2500 PICKUP 07-13
SILVERADO 3500 PICKUP 07-13
SUBURBAN 1500 07-11
SUBURBAN 2500 07-11
TAHOE 07-11
YUKON 07-11
YUKON XL 1500 07-11
YUKON XL 2500 07-11
Note: For 2007 models, this fits the ‘new style’ with a smooth door skin. Always verify your part number or contact us with your VIN to ensure compatibility.
Frequently Asked Questions
What is a BCM Cloning Service?
Our Cloning Service involves transferring the unique, vehicle-specific software and security data from your original BCM to the replacement unit. This makes the new module a perfect electronic match for your truck, eliminating the need for dealership programming.
Will I need to take my truck to a dealer after installation?
No. Because the module arrives pre-programmed with your vehicle’s data, you can skip the dealership visit. The only exception is if a post-install procedure, like an airbag system sync, is required, which can be done by most professional repair shops with an advanced scan tool.
Is there a core charge for my old BCM?
No, there is no core charge. We require your original module to perform the cloning service, and it will be returned to you along with your newly programmed replacement part.
What tools are needed for the installation?
Basic hand tools, such as a socket set or nut driver, are typically all that’s needed to access and replace the BCM. No specialized tools are required for the physical installation itself.
My airbag light is on. Will this fix it?
If the airbag light is caused by a faulty BCM (often DTC B1001), this part will resolve the root cause. However, after installation, you will likely need to perform the ‘Setup SDM Primary Key in BCM’ procedure with a scan tool to sync the airbag system and turn off the light.