Is Your GM Truck or Van Plagued by Electrical Gremlins?
If you’re dealing with flickering lights, power windows that have a mind of their own, intermittent door lock failures, or a security system that won’t cooperate, you’re likely facing a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a wide range of frustrating and unpredictable issues. Don’t let a faulty module compromise your vehicle’s functionality and safety. This direct replacement BCM is the reliable solution you need.
Symptoms of a Failing Body Control Module
- ✔ Erratic or non-functional interior and exterior lights (headlights, taillights, dome lights).
- ✔ Power windows, mirrors, or door locks operating intermittently or not at all.
- ✔ The vehicle’s security system or keyless entry failing to work correctly.
- ✔ The horn sounding unexpectedly or not working when pressed.
- ✔ Warning lights appearing on the dashboard with no apparent cause.
- ✔ Unexplained battery drain, leading to a dead battery.
The Plug-and-Play Solution: A Pre-Programmed 2002 Sierra 3500 BCM
Forget about expensive dealership visits and complex programming procedures. We make the repair process simple. When you purchase this BCM, you provide us with your vehicle’s VIN. We then flash the module with the latest official GM software specific to your truck or van. This means the part arrives at your door ready for installation. This is the most efficient way to restore your vehicle’s electronic systems to perfect working order. This module is a direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU, ensuring wide compatibility across many GM models.
Important Post-Installation Information
While this module is designed for a straightforward installation, some vehicles may require additional steps to ensure all systems communicate correctly. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a technician will need to perform the “Setup SDM Primary Key in BCM” procedure using 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 might be necessary to ensure the brake lights and traction control system function as intended.
Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that manages and controls various electronic accessories, such as power windows, lights, door locks, security systems, and more. It acts as the central hub for your vehicle’s body electronics.
How do I know if my BCM is the problem?
Common signs of a failing BCM include multiple, unrelated electrical issues happening at once. This can be anything from flickering lights and malfunctioning power accessories to a security system that won’t arm or an unexplained battery drain. A diagnostic scan by a professional can confirm the failure.
What does ‘VIN-programmed’ mean for me?
‘VIN-programmed’ means we load the module with the specific software and settings for your exact vehicle using your Vehicle Identification Number (VIN) before we ship it. This eliminates the need for you to have it programmed at a dealership, saving you time and money.
Is this part difficult to install?
The physical installation is typically straightforward, involving disconnecting the battery and swapping the old module with the new one. The BCM is usually located under the dashboard or steering column. However, as noted, some vehicles may require a post-installation relearn procedure for the airbag or brake systems.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.
What if my airbag light is on after I install the new BCM?
This is not a defect. It simply means the new BCM needs to be electronically introduced to your vehicle’s airbag system. A qualified technician with a professional diagnostic tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems and turn off the light.