Restore Full Electrical Function to Your GM Truck or SUV
Are you battling frustrating electrical issues in your truck, like flickering lights, unresponsive power windows, or a malfunctioning security system? These are classic signs of a failing Body Control Module (BCM). The BCM acts as the central command center for your vehicle’s body electronics, and when it fails, it can cause a cascade of seemingly unrelated problems. This genuine GM Body Control Module, part number 25971916, is the definitive solution for a wide range of 2007-2013 GM vehicles, including the Chevrolet Silverado, GMC Sierra, Tahoe, and Cadillac Escalade.
From the Diagnostic Bay
We had a 2013 GMC Sierra 2500 in the shop that was driving the owner crazy. The radio would turn on by itself, the dome lights wouldn’t turn off, and the power locks worked intermittently. He’d already replaced the battery and checked fuses, but the gremlins persisted. A quick scan showed communication errors with the BCM. Instead of a costly, time-consuming diagnostic chase, we installed this VIN-programmed module. In under 10 minutes, all the strange electrical issues were gone. It’s a common failure, and having a pre-programmed unit is the fastest way to a reliable fix.
Symptoms of a Failing Body Control Module
- ✔ Unresponsive or erratic power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that won’t turn on or off correctly.
- ✔ Malfunctioning HVAC controls or an intermittent blower motor.
- ✔ An illuminated airbag warning light, often with DTC B1001.
- ✔ Security system faults, causing no-start conditions or random alarm activation.
- ✔ Communication errors with other vehicle modules, leading to various diagnostic trouble codes (DTCs).
Why Choose Our Programmed 2013 Sierra 2500 BCM?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We pre-program the module to your vehicle’s specific VIN, ensuring it communicates flawlessly with your truck’s existing systems right out of the box. This eliminates the need for expensive dealership programming or specialized tools, saving you time and money. Built to strict OEM standards, this module restores the precise control and reliability you expect from your vehicle. It is a direct replacement for multiple part numbers, including 25844480, 25835966, 20939137, and more.
Simple Installation & Post-Install Notes
Installation is straightforward for any DIYer or professional technician. The BCM is typically located under the driver’s side dashboard, near the steering column. While the physical swap takes only minutes, be aware of potential post-installation procedures. If the airbag light remains on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ function. In some cases, a ‘Brake Pedal Position Relearn’ may also be required. These simple steps ensure all related systems are properly synced with your new 2013 Sierra 2500 BCM for optimal safety and performance.
Frequently Asked Questions
Do I need to have this BCM programmed by a dealer?
No. This module comes pre-programmed to your vehicle’s VIN. It is designed for plug-and-play installation, eliminating the need for additional dealership programming.
Where is the BCM located on my 2013 Sierra 2500?
The Body Control Module is typically found under the driver’s side dashboard, attached to or near the steering column.
What if my airbag light is on after I install the new BCM?
If the airbag light is on, it means the new BCM needs to be synced with the vehicle’s Sensing and Diagnostic Module (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure.
Is there a core charge for my old part?
No, there is no core charge for this part. You can keep your old module without any penalty.
How do I know this part will fit my truck?
This module fits a wide range of 2007-2013 GM trucks and SUVs. It is a direct replacement for part numbers 25971916, 25844480, 25835966, and many others listed in the description. Please verify your part number or contact us with your VIN to confirm compatibility.