Are you battling strange and frustrating electrical problems in your 2002 GM truck or van? Issues like flickering lights, malfunctioning power windows and locks, or a security system that acts up on its own are classic signs of 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 create a cascade of confusing symptoms. This replacement Body Control Module, compatible with part number 15095334, is the definitive solution to restore your vehicle’s electronic functions to factory-perfect condition.
We take the guesswork out of the repair. Unlike a generic part from a salvage yard, this BCM is professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This ensures seamless integration with your truck’s existing systems and loads the latest software updates from GM, often resolving issues the original module may have had from the factory. Simply provide your VIN at checkout, and we’ll handle the programming, making installation as straightforward as possible.
Diagnosing Your 2002 Silverado 3500 BCM
A failing BCM can manifest in numerous ways, often mistaken for other issues. If your truck is experiencing several of the following symptoms, a faulty BCM is the most likely cause. This module is the direct fix for these problems.
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that flicker, stay on, or won’t turn on at all.
- ✔ Erratic or non-functional dashboard gauges.
- ✔ The security system or alarm randomly activating or preventing the vehicle from starting.
- ✔ Horn honking unexpectedly.
- ✔ Communication errors with a diagnostic scan tool (U-codes).
- ✔ Inconsistent operation of the heating and A/C blower motor.
Installation and Post-Install Notes
This BCM is located under the steering column on most compatible trucks (like the Silverado, Sierra, and Yukon) or in the center dash for vans (like the Astro and Safari). While the physical replacement is straightforward, please be aware of potential post-installation procedures. We program the module to your VIN, but some security systems require a final handshake once installed.
- Airbag System Sync: If your airbag warning light is illuminated after installation, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag module.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure proper brake light and traction control operation.
This module is a direct replacement for part numbers: 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU, ensuring wide compatibility across the GM lineup.
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM is a computer that acts as the brain for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, security system, wipers, and interior accessories.
Why do you need my VIN?
We require your VIN to program the module with your vehicle’s exact specifications and the latest GM software. This ensures the BCM works correctly with your specific options and features, making it a true plug-and-play part.
Is this part difficult to install?
For most DIY mechanics, the physical installation is straightforward. It typically involves removing a few dash panels to access the module (usually under the steering column). However, be aware that post-installation procedures like an airbag system sync may require a professional scan tool.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module.
What if my airbag light comes on after I install this?
This can happen on some vehicles. It means the new BCM needs to be electronically introduced to the airbag system. A repair shop with a high-end diagnostic tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve it.