2013 Sierra 3500 BCM Body Control Module 25823558 | VIN Programmed

Restore Full Electrical Control to Your GM Truck

Are you chasing down frustrating electrical gremlins in your truck? A faulty Body Control Module (BCM) is often the culprit behind a cascade of confusing issues, from flickering lights to a non-responsive HVAC system. This OEM-quality Body Control Module, part number 25823558, is the definitive solution for your 2007-2013 GM vehicle. We take the guesswork and high dealership costs out of the repair by pre-programming the module to your vehicle’s specific VIN. This ensures it arrives ready for a straightforward, plug-and-play installation, immediately restoring the critical functions you rely on every day.

The BCM is the central command center for your truck’s body electronics. It manages everything from your power windows and door locks to the security system and interior lighting. When it fails, it can make your reliable workhorse feel unpredictable. This replacement module restores that factory-fresh performance and reliability, ensuring all components communicate and function as they should. It’s the right fix for getting your truck back to 100% functionality without the hassle.

Is Your GM Truck Showing These Telltale Signs?

• ✔ Non-functioning power windows, door locks, or mirrors.
• ✔ Erratic or dead HVAC and climate controls; blower motor not working.
• ✔ An active airbag warning light, often with a DTC B1001 (SDM Mismatch).
• ✔ Malfunctioning interior or exterior lights (e.g., dome lights stay on, headlights won’t turn off).
• ✔ Security system faults, causing no-start conditions or random alarm activation.
• ✔ Communication errors with other modules on the CAN bus network.

A Straightforward Guide to Installation

1. ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
2. ✔ Locate the BCM: On most GM trucks and SUVs, the BCM is located under the driver’s side dashboard, near the steering column. It’s typically held in place by clips or a few small bolts.
3. ✔ Swap the Modules: Carefully disconnect the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Remove the old module and install the new one in its place.
4. ✔ Reconnect and Test: Securely plug the electrical connectors into your new, pre-programmed BCM. Reconnect the battery terminal and start the vehicle. Test all functions: lights, windows, locks, wipers, and HVAC system.
5. ✔ Post-Install Checks: If the airbag light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. Some models may also require a ‘Brake Pedal Position Relearn’.

Will This Fit My Truck or SUV?

This module is a direct replacement for a wide range of General Motors vehicles. It is interchangeable with part numbers 25835966, 15943678, 25823558, 20939137, and others. Please verify your part number or confirm fitment with your vehicle’s year and model from the list below.

This 2013 Sierra 3500 BCM is the reliable fix you need. By ordering a VIN-programmed module, you are choosing a hassle-free repair that saves you time and money.