Programmed 2007-2013 GMC Sierra BCM Body Control Module 25844480

Restore Full Electrical Function to Your GM Truck or SUV

Are you battling a storm of strange electrical issues in your GMC Sierra, Chevrolet Silverado, or Tahoe? From flickering lights and unresponsive door locks to a malfunctioning HVAC system and persistent warning lights, these seemingly unrelated problems often point to a single culprit: a failing Body Control Module (BCM). The BCM acts as the central nervous system for your vehicle’s body electronics, and when it malfunctions, it can make your truck feel unpredictable and unreliable. This genuine quality GM BCM, part number 25844480, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair.

Common Symptoms of a Failing BCM

• ✔ Intermittent or non-functional power windows, door locks, or mirrors.
• ✔ HVAC controls not working correctly, or the blower motor behaving erratically.
• ✔ Exterior or interior lights staying on, not turning on, or flickering.
• ✔ An active airbag warning light, often with Diagnostic Trouble Code (DTC) B1001.
• ✔ Security system malfunctions, causing no-start conditions or random alarm activation.
• ✔ Unexplained battery drain while the vehicle is parked.
• ✔ Wipers operating incorrectly or not at all.

Diagnosing Your 2013 Sierra BCM

Confirming a bad 2013 Sierra BCM involves more than just observing symptoms. A professional scan tool is your best friend here, as it can read codes specific to the Body Control Module. Look for codes indicating ‘loss of communication’ with other modules or specific circuit faults related to functions the BCM controls. Before condemning the module, always perform a thorough check of the vehicle’s main ground points, especially the one connected to the BCM, as poor grounding can mimic module failure. If multiple, unrelated electrical systems are failing simultaneously and grounds are good, the BCM is the most likely cause.

Features and Benefits of This Module

• ✔ VIN Programmed for Your Vehicle: We program this module with the latest GM software using your vehicle’s VIN. This ensures it works seamlessly with your truck’s existing systems right out of the box, eliminating the need for an expensive trip to the dealership for programming.
• ✔ Plug-and-Play Installation: The module is located under the driver’s side dash and is designed for a straightforward replacement. Most owners can complete the installation in under 15 minutes with basic hand tools.
• ✔ No Core Charge: Keep your old part. We don’t require a core return, saving you the time and hassle of shipping your old module back.
• ✔ Wide Compatibility: This BCM is a direct replacement for a wide range of part numbers, including 15284816, 25835966, 15943678, and 20939137, ensuring broad fitment across many 2007-2013 GM trucks and SUVs.
• ✔ One-Year Warranty: Drive with confidence knowing your purchase is protected by a one-year warranty against defects.