Are you battling frustrating electrical issues in your GM truck or SUV? Flickering lights, malfunctioning power windows, a temperamental security system, or strange warning messages on your dash are all 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 fails, it can create a cascade of confusing problems. This replacement Body Control Module, part number 15095334, is the definitive solution to restore your vehicle’s proper function and reliability.
This isn’t just a generic part off the shelf. We provide a crucial service by programming this module 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, a critical step that saves you a costly trip to the dealership for programming. Simply provide your VIN after purchase, and we’ll handle the rest.
Common Symptoms of a Failing GM BCM
- ✔ Erratic or non-functional interior and exterior lights
- ✔ Power windows, locks, or mirrors working intermittently or not at all
- ✔ The security system preventing the vehicle from starting
- ✔ Horn honking unexpectedly or not working
- ✔ Inaccurate gauge readings on the instrument cluster
- ✔ ‘Service Vehicle Soon’ or other warning lights illuminated
- ✔ Diagnostic scan tools unable to communicate with the BCM
Installing Your 2002 Sierra 3500 BCM
Installation is straightforward for those with mechanical experience. The BCM is typically located under the steering column or in the center dash area. While our VIN programming makes this a near plug-and-play installation, some vehicles may require additional post-installation steps to ensure full functionality.
Post-Installation Procedures:
- Airbag System Sync: If your airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary. This requires a professional-grade scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be needed to ensure your brake lights and traction control system operate correctly.
This module is a direct replacement for the following part numbers: 15063578, 15081796, 15095334, 19208537, DKAK, DPNU.
Fitment Note: This BCM fits a wide range of 2002-2005 GM vehicles, including the Chevrolet Silverado, Suburban, Tahoe, Avalanche, Blazer, Astro, and S10, as well as the GMC Sierra, Yukon, Jimmy, Safari, and Sonoma, and the Cadillac Escalade. Please verify your part number to ensure compatibility.
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 electronic accessories like power windows, locks, lights, wipers, the security system, and more. It acts as a central hub for these functions.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings for your vehicle’s specific options and features. This ensures it works correctly right out of the box and prevents compatibility issues.
Is this part difficult to install?
For someone with basic automotive repair skills, the physical replacement is generally not difficult. However, please be aware that post-installation procedures like an airbag sync or brake pedal relearn may be required and necessitate a professional diagnostic tool.
What happens if I don’t perform the post-installation procedures?
If a procedure like the airbag sync is required and not performed, the airbag warning light will remain on, and the supplemental restraint system may not function correctly. Other systems, like traction control, may also be affected if their respective relearns are not completed.
Will this BCM fix my specific electrical problem?
This module is a common solution for a wide array of electrical issues. If your vehicle is displaying multiple symptoms from the list above, it is highly likely that the BCM is the cause. However, proper vehicle diagnostics are always recommended to confirm the BCM is the point of failure.
Is there a core charge for my old part?
No, there is no core charge for this part. You can keep your original module.