Are you battling frustrating electrical gremlins in your GM vehicle? Issues like flickering lights, malfunctioning power windows and locks, or a security system that acts up on its own are often traced back to a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics. When it fails, it can cause a wide range of confusing and intermittent problems. This replacement Body Control Module is the definitive solution to restore full functionality and reliability to your vehicle.
We make the repair process straightforward. This BCM is delivered to you pre-programmed with the latest GM software updates, specifically matched to your vehicle using your VIN. This eliminates the need for expensive programming at a dealership. Simply provide your VIN after purchase, and we’ll handle the programming before shipping it out. It’s a direct-fit replacement, designed to get your van or SUV back to perfect working order with minimal hassle.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights
- ✔ Power windows, mirrors, or door locks working intermittently or not at all
- ✔ Vehicle security system faults or alarm sounding randomly
- ✔ Wipers or radio turning on and off by themselves
- ✔ A/C and climate control system malfunctions
- ✔ A ‘No Start’ condition or difficulty starting the engine
- ✔ Warning lights on the dashboard, such as the airbag or service vehicle light
Installation and Required Procedures
This module is a direct replacement for the original unit. However, due to the complexity of modern vehicle systems, some post-installation steps may be necessary. After installing your new Express 2500 Body Control Module, please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ must be performed with a professional-grade scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be required to ensure your brake lights and traction control system function correctly.
We make the process easier with a no core charge policy, so you can keep your original module. While many installations are straightforward, we always recommend consulting a factory service manual or a qualified technician for your specific vehicle.
Guaranteed Fitment
This BCM is a direct replacement for a wide range of General Motors vehicles. It is compatible with the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, and 95151084. Please verify your part number to ensure compatibility.
Frequently Asked Questions
What does a Body Control Module do?
The BCM acts as the central computer for your vehicle’s electronic accessories. It controls functions that are not related to the engine, such as power windows, locks, lights, wipers, security system, and climate controls.
Is this BCM plug-and-play?
Mostly, yes. We pre-program the module to your vehicle’s VIN so it communicates with the other computers in your car. However, as noted, some vehicles may require additional relearn procedures for systems like the airbags or brake position sensor, which need to be done with a compatible scan tool after installation.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot program and ship your module until we receive this information.
What if my airbag light is on after installation?
This is a common security measure in GM vehicles. A professional technician will need to use a diagnostic scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the airbag system with the new BCM and turn off the light.
Do I need to return my old BCM?
No. This part has no core charge. You can keep your old module, which can be helpful for diagnostic comparison if needed.