Are you battling bizarre electrical gremlins in your GM truck or SUV? Flickering lights, malfunctioning power windows and locks, a security light that won’t turn off, or even a frustrating no-start condition 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 cause a wide range of confusing and disruptive problems. This VIN-programmed BCM is the definitive solution to restore full functionality and reliability to your vehicle.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork out of the repair by pre-programming the module to your vehicle’s specific VIN. This ensures seamless integration with your truck’s existing systems and loads the latest GM software updates for optimal performance. Simply provide your VIN after purchase, and we’ll handle the complex programming before it even ships. This eliminates the need for an expensive trip to the dealership for coding.
Solving Your GM Truck’s Electrical Headaches
A faulty BCM can manifest in numerous ways, often intermittently at first. If you’re experiencing any of the issues below, a failing BCM is the most likely culprit. Replacing it with our programmed unit is the most effective way to permanently resolve these problems and get your truck back to 100%.
Common Symptoms of a Failing GM BCM
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, dash lights)
- ✔ Power windows, door locks, or mirrors working intermittently or not at all
- ✔ The security or anti-theft light stays on, preventing the engine from starting
- ✔ Horn honking unexpectedly or not working when pressed
- ✔ Wipers activating on their own or not responding to the switch
- ✔ Inaccurate or dead gauges on the instrument cluster
- ✔ A persistent parasitic battery drain that kills your battery overnight
Why Choose Our Programmed 2002 Avalanche BCM?
This module is a direct replacement for a wide range of GM trucks and SUVs, including the Silverado, Sierra, Tahoe, Suburban, and Avalanche. It is guaranteed to be a perfect fit for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. Our VIN programming service makes installation straightforward. While the physical swap is simple for a DIYer, please be aware of potential post-installation steps. In some cases, an ‘Airbag System Sync’ or ‘Brake Pedal Position Relearn’ may be necessary using a professional scan tool to clear warning lights. This is a simple procedure for any qualified mechanic. With our no-core-charge policy, you can keep your old module, saving you time and money on return shipping.
Frequently Asked Questions
What does the BCM do on a 2002 Chevy Avalanche?
The Body Control Module (BCM) on your 2002 Avalanche acts as the brain for the vehicle’s electronic accessories. It controls functions like the power windows, door locks, interior/exterior lighting, security system, wipers, and instrument cluster gauges.
Is this a plug-and-play part?
Yes, this BCM comes pre-programmed to your vehicle’s VIN, making it as close to plug-and-play as possible. This eliminates the need for dealership programming. However, some vehicles may require a simple relearn procedure for the airbag or brake systems after installation, which can be done with a standard professional scan tool.
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 ship your part until we receive the VIN, as the programming is essential for the module to work correctly in your truck.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module, saving you the hassle and cost of return shipping.
Will this fix my ‘Security’ light issue?
Yes, a common failure of the original BCM is a fault in the Passlock security system, which causes the ‘Security’ light to illuminate and prevent the engine from starting. Our VIN-programmed 2002 Avalanche BCM is the correct fix for this widespread issue.