Restore Full Functionality to Your GM Truck
If you’re dealing with baffling electrical issues in your Silverado, Sierra, or Tahoe, a failing Body Control Module (BCM) is the likely culprit. As a technician with two decades of experience, I’ve seen these modules cause some of the most frustrating problems—from intermittent wipers and dead power windows to no-start conditions. This isn’t just an inconvenience; it can be a safety concern. This high-quality replacement BCM, interchangeable with part number 15263497, is the definitive solution. It arrives pre-programmed to your vehicle’s specific VIN, eliminating the need for a costly trip to the dealership and getting your truck’s essential systems back online fast.
Is Your Truck Showing These Symptoms?
A faulty BCM acts like a glitch in your vehicle’s central nervous system. Before you spend hours chasing wires, check if you’re experiencing any of these common indicators of a failing module:
- ✔ The air conditioning or heater blower motor works sporadically or not at all.
- ✔ Your airbag warning light is illuminated, often with a Diagnostic Trouble Code (DTC) like B1001.
- ✔ Power door locks, windows, or interior/exterior lights are behaving erratically.
- ✔ The security system is malfunctioning, causing stalling, misfires, or preventing the engine from starting.
- ✔ You have a cluster of seemingly unrelated electrical trouble codes stored in the system.
A Technician’s Notebook: The Case of the Haunted Silverado
A customer brought in a 2013 Silverado 2500 with a laundry list of complaints: the radio would cut out, the driver’s side window wouldn’t roll down, and the anti-theft light would flash randomly. They had already replaced the battery and checked fuses. After hooking up my scanner, I saw multiple communication loss codes with the BCM. From experience, I know these GMT900 platforms often suffer from poor ground connections near the BCM’s location. After confirming the G218 ground under the dash was clean and tight, the problems persisted. We installed a VIN-programmed BCM like this one, and every single issue was resolved instantly. It’s a prime example of how this single component can fix a dozen different problems.
A Straightforward Guide to BCM Installation
Replacing the 2013 Silverado 2500 BCM is a job most DIYers can handle in their own driveway in under 10 minutes. No specialized tools are required for the physical swap.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on electrical components.
- Locate the Module: The BCM is typically found under the driver’s side of the dashboard, near the steering column. It’s a black box with several large electrical connectors.
- Disconnect and Remove: Carefully unplug the electrical harnesses. They have locking tabs that need to be depressed. Once unplugged, the old module can be unclipped or unbolted from its mounting bracket.
- Install the New BCM: Snap the new, pre-programmed module into the bracket and firmly reconnect all electrical harnesses until they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all functions: lights, windows, locks, wipers, and HVAC to confirm the repair.
Post-Installation Note: In some cases, particularly if you had an airbag light on, a ‘Setup SDM Primary Key in BCM’ procedure may be required using a professional scan tool to sync the new BCM with the airbag system. Additionally, a Brake Pedal Position relearn might be necessary. But for most, it’s a true plug-and-play fix.
Verified Vehicle Compatibility
This module is a direct-fit replacement for a wide range of General Motors trucks and SUVs. It is engineered to work seamlessly with the following vehicles, replacing part numbers including 15263497, 25835966, 20939137, and more.
ESCALADE 07-11
ESCALADE ESV 07-11
ESCALADE EXT 07-11
SIERRA 1500 PICKUP 07-11
SIERRA 2500 PICKUP 07-11, 13
SIERRA 3500 PICKUP 07-11, 13
SIERRA DENALI 07-10
SIERRA DENALI 1500 11
SIERRA DENALI 2500 11, 13
SIERRA DENALI 3500 11, 13
SILVERADO 1500 PICKUP 07-11
SILVERADO 2500 PICKUP 07-11, 13
SILVERADO 3500 PICKUP 07-11, 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
Frequently Asked Questions
Frequently Asked Questions
Is this BCM truly plug-and-play?
Yes. We program the module to your vehicle’s VIN before shipping. This means it arrives ready for installation without requiring any additional programming from a dealer, solving the issues caused by your old 2013 Silverado 2500 BCM right away.
What if my airbag light is still on after installation?
If the airbag light persists, it’s because the new BCM needs to be electronically ‘introduced’ to the airbag’s Sensing and Diagnostic Module (SDM). This is done with a professional scan tool using the ‘Setup SDM Primary Key in BCM’ function. It’s a quick procedure for any qualified shop.
Do I need to return my old BCM? Is there a core charge?
No. We do not require you to return your original part. There is absolutely no core charge, saving you the time and hassle of shipping your old module back.
What tools are needed for this job?
For most models, you’ll only need a basic socket set or nut driver (commonly 7mm or 10mm) to disconnect the battery and potentially unbolt the module bracket. No other special tools are needed for the physical swap.
Will this fix my intermittent no-start problem?
In many cases, yes. The BCM controls the vehicle’s anti-theft system (Pass-Key/Pass-Lock). A failing BCM can incorrectly believe the vehicle is being stolen and disable the starter or fuel system. Replacing it often resolves these frustrating no-start conditions.