Restore Control Over Your Truck’s Electronics
Are you battling strange and frustrating electrical issues in your GM truck or van? Flickering lights, power windows with a mind of their own, a security system that prevents your truck from starting, or dashboard warning lights that won’t turn off are all classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause chaos. This isn’t just an annoyance; it can affect vehicle security and safety. This direct-fit 2002 Silverado BCM is the reliable, professional-grade solution to get your vehicle back to operating as it should.
The biggest hurdle in replacing a BCM has always been the expensive and time-consuming programming required at a dealership. We eliminate that step entirely. By providing us with your vehicle’s VIN at checkout, you’ll receive a module that is expertly programmed with the latest GM software updates specific to your truck. It arrives ready for installation, saving you hundreds of dollars and significant downtime. This is the smart, efficient way to tackle the job, whether you’re a seasoned mechanic or a determined DIYer.
A Technician’s Notebook
Just last month, a 2002 GMC Sierra 2500 was towed into my bay with a classic BCM failure story. The owner was fed up. The radio would turn on and off randomly, the power locks worked intermittently, and the final straw was the security light staying on, leaving him stranded. After confirming power and grounds to the module, the diagnostic pointed straight to an internal BCM fault. Instead of sending him to the dealer, we used one of these VIN-programmed units. The swap took less than an hour, and after performing the necessary relearn procedures, the truck’s electrical gremlins were gone. It’s a repair I’ve done countless times, and having a pre-programmed module is a game-changer for shop efficiency and customer satisfaction.
Is Your GM Truck or Van Showing These Signs?
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic interior or exterior lighting behavior (lights staying on or not turning on).
- ✔ The security or anti-theft system light is illuminated, causing a no-start condition.
- ✔ False warnings on the instrument cluster (e.g., ‘Door Ajar’ light stays on).
- ✔ Communication issues with other modules, leading to various diagnostic trouble codes (DTCs).
- ✔ Unresponsive key fob or remote entry features.
Your Straightforward BCM Installation Guide
Replacing the BCM is a manageable task. Follow these steps carefully. Note that post-installation procedures are critical for full functionality.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On most compatible trucks and SUVs (Silverado, Sierra, Tahoe, Yukon), the BCM is located under the steering column, near the driver’s side kick panel. On vans (Astro, Safari) and S-series trucks/SUVs, it’s often behind the center dash area.
- Remove and Replace: Carefully unplug the electrical connectors. They have locking tabs that must be depressed. Remove any mounting screws or bolts holding the old BCM in place and install the new module. Reconnect the electrical harnesses securely.
- Reconnect Battery: Once the new module is installed, reconnect the negative battery terminal.
- CRITICAL – Airbag System Reset: After installation, the airbag warning light will be on. You MUST perform the ‘Setup SDM Primary Key in BCM’ procedure using a compatible, high-level diagnostic scan tool. This is a vital safety step to ensure the airbag system is operational.
- Brake Pedal Calibration: Some vehicles may require a Brake Pedal Position Sensor relearn or calibration. If you notice any unusual braking behavior, this procedure should be performed with a scan tool.
- Final Check: Test all body functions: windows, locks, lights, wipers, and remote entry to ensure everything is working correctly.
Verified Fitment for These GM Models
This Body Control Module is a direct replacement for part number 15095334 and is also compatible with part numbers 15063578, 15081796, 19208537, DKAK, and DPNU. It fits a wide range of GM vehicles, including:
- Chevrolet Silverado / GMC Sierra (1500, 2500, 3500): 2002
- Chevrolet Tahoe / Suburban / GMC Yukon / Yukon XL: 2002 (4×2 models)
- Chevrolet Avalanche 1500: 2002 (4×2 models)
- Cadillac Escalade: 2002 (4×2 models)
- GMC Sierra Denali: 2002
- Chevrolet S10 / GMC Sonoma: 2002-2004
- Chevrolet Blazer / GMC Jimmy: 2002-2005
- Chevrolet Astro / GMC Safari: 2002-2005
Please verify your original part number or consult the detailed fitment list to ensure compatibility with your specific vehicle and options.
Frequently Asked Questions
Why do you need my VIN number?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and vehicle-specific options that your truck came with from the factory. This ensures all features work correctly and makes the installation process much smoother, avoiding a trip to the dealer for programming.
Will this fix my truck’s security light and no-start problem?
A faulty BCM is a very common cause of security system issues (like GM’s Passlock/Passkey system) that result in a no-start condition. While other issues can cause this, replacing a failed BCM with this pre-programmed unit is often the correct fix.
Is this a simple plug-and-play installation?
The physical installation is plug-and-play. However, as noted in the instructions, critical post-installation relearn procedures are required for the airbag system and potentially the brake pedal sensor. These steps require a professional-grade diagnostic tool.
What tools are needed for the final steps after installation?
You will need a bidirectional scan tool capable of performing specific GM procedures. A basic code reader will not work. You need a tool that can execute the ‘Setup SDM Primary Key in BCM’ command to reset the airbag light and communicate with the BCM for any other necessary calibrations.
How do I find my original BCM’s part number?
The part number is printed on a sticker on the case of your current BCM. You will need to access the module in your vehicle to read it. Comparing this number to our compatible list (15095334, 15063578, etc.) is the best way to confirm a match.
Is this a genuine GM part?
This is a high-quality replacement part that is programmed using official GM software updates. It is designed to meet or exceed original equipment specifications for function and reliability, providing a dependable and cost-effective solution.