Programmed 2002 Silverado BCM 19208537 Body Control Module

Tired of Chasing Electrical Gremlins in Your GM Truck?

If your 2002 Silverado is acting possessed—with flickering lights, malfunctioning power windows and locks, or a security light that won’t turn off—you’re not alone. These are classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, when the BCM goes, it can cause a cascade of frustrating and unpredictable problems. In my 20+ years of diagnostics, I’ve seen corroded BCMs cause everything from intermittent no-start conditions to a complete loss of interior accessories.

This isn’t just an inconvenience; it can be a safety issue when exterior lights or security systems are compromised. Stop throwing parts at the problem. This is the direct, reliable solution to restore your truck’s functionality. We offer a replacement 2002 Silverado BCM that arrives at your door programmed and ready for installation. We use your vehicle’s VIN to flash the module with the latest, most stable software from GM, ensuring seamless integration and performance right out of the box.

Case Study: A Tricky Diagnosis

A customer brought in his ’02 Sierra 2500 with a complaint that stumped two other shops: the radio and dome light would randomly turn on and off, and sometimes the truck wouldn’t start, showing only a security light. A basic scan showed no engine codes. However, digging deeper with a professional tool revealed communication loss codes (U-codes) with the BCM. After dropping the lower dash panel, I found the culprit. The BCM, located under the steering column, had signs of water intrusion from a leaky windshield seal, causing corrosion on the main connector. Replacing the faulty module with a pre-programmed unit like this one solved every single issue instantly. This is a common failure point I’ve diagnosed hundreds of times on these GM platforms.

Is Your GM Vehicle Showing These Symptoms?

✔ Erratic or non-functional power windows, door locks, or mirrors.
✔ Interior dome lights or exterior lights staying on or not working at all.
✔ The security or anti-theft light is illuminated, preventing the engine from starting.
✔ Inconsistent or dead instrument panel gauges.
✔ The horn honking unexpectedly or not working.
✔ Diagnostic trouble codes (DTCs) related to communication loss, such as U1000, or specific BCM faults like B1001.

A Straightforward Guide to Installation

Replacing the BCM is a manageable job for a DIYer with basic tools. The key is our VIN programming service, which handles the complex part for you. Note: The location can vary. On full-size trucks and SUVs (Silverado, Sierra, Tahoe, etc.), it’s typically under the driver’s side dash. On vans and S-series trucks (Astro, Blazer), it’s often behind the center dash/glove box area.

Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
Locate the BCM: Find the existing module under the dash. It’s a black plastic box with several large multi-pin connectors.
Disconnect and Remove: Carefully unplug the electrical connectors. Press the release tabs firmly. Then, unbolt or unclip the module from its mounting bracket.
Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors until they click into place.
Reconnect Power: Re-attach the negative battery terminal.
Perform Relearns (If Needed): Start the vehicle. Check all functions. As noted below, you may need a professional scan tool to perform an airbag system sync or brake pedal position relearn if specific warning lights appear.

Post-Installation System Calibrations

While our programming handles the heavy lifting, some systems may require a final handshake after installation. This is standard for modern vehicles. Please be aware of the following potential procedures:

Airbag System Sync: If your airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade diagnostic tool to sync the new BCM with the airbag module.
Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light operation and to satisfy the traction control system.

We believe in full transparency to ensure a smooth repair. And with our No Core Charge policy, you can keep your old part without any extra fees or hassle.

Will This Fit My Vehicle?

This BCM is a direct replacement for part numbers 19208537, 15063578, 15081796, 15095334, DKAK, and DPNU. It is guaranteed to fit the following GM models:

Chevrolet Silverado 1500, 2500, 3500: 2002
GMC Sierra 1500, 2500, 3500, Denali: 2002
Chevrolet Tahoe / GMC Yukon (4×2): 2002
Chevrolet Suburban / GMC Yukon XL (4×2): 2002
Chevrolet Avalanche 1500 (4×2): 2002
Cadillac Escalade (4×2): 2002
Chevrolet Blazer S10 / GMC Jimmy S15: 2002-2005
Chevrolet S10 / GMC Sonoma: 2002-2004
Chevrolet Astro / GMC Safari: 2002-2005

Always verify your part number or consult the detailed fitment list if you are unsure. Providing your VIN during checkout is required for programming and ensures you receive the correct, updated software for your specific vehicle configuration.