2000

Tired of Chasing Electrical Gremlins in Your GM Truck?

As a technician with over two decades of experience, I’ve seen it all. The flickering dome light that won’t turn off, the power windows with a mind of their own, or the dreaded parasitic battery drain that leaves you stranded. These frustrating, intermittent issues often point to one culprit: a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, controlling everything from the interior lights and power locks to the security system. When it fails, your reliable truck or SUV can become a source of constant annoyance.

This isn’t just a replacement part; it’s a complete, hassle-free solution. We take a high-quality BCM and flash it with the latest official GM software, programmed specifically to your vehicle’s 17-digit VIN. This means you get a module that’s ready to install right out of the box, with no need for an expensive trip to the dealership for programming. This is the exact process we use in our shop to get customers back on the road quickly and reliably.

Common Signs of a Failing BCM in Your GM Truck

If your vehicle is exhibiting any of these symptoms, a faulty BCM is a likely cause. A scan tool might show communication error codes like U0140 or other body-related faults.

• ✔ Erratic or non-functional power windows, door locks, or mirrors.
• ✔ Interior or exterior lights staying on or not working at all.
• ✔ The security system acting up or preventing the vehicle from starting.
• ✔ A persistent battery drain that kills the battery overnight.
• ✔ Horn honking unexpectedly or not working when pressed.
• ✔ Inaccurate gauge readings or warning lights on the dash.

Your Straightforward BCM Installation Guide

For the confident DIYer, replacing the BCM is a manageable job. On most of these GM trucks and SUVs, the module is located under the driver’s side of the dashboard.

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
2. Locate the BCM: On most compatible models, you’ll find the BCM mounted to a bracket to the left of the steering column, under the dash. You may need to remove a lower dash panel for access.
3. Disconnect and Remove: Carefully unplug the multiple electrical connectors from the module. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
4. Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors, ensuring they click into place.
5. Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions: lights, locks, windows, horn, etc.

Important Post-Installation Information

While this module is programmed for your VIN, some vehicle systems may require a ‘handshake’ with the new BCM. This is normal. If you encounter an airbag warning light, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. Similarly, a Brake Pedal Position Relearn may be needed to ensure proper brake light and stability control function. Always consult a factory service manual for your specific model’s requirements.

Will This Fit My Truck?

This module is a direct replacement for service numbers 19208539, 9371990, and 9385236. It is guaranteed to fit the following vehicles with the specified options:

• 2000 Chevrolet Silverado 1500 & 2500 (LH dash)
• 2000 GMC Sierra 1500 & 2500 (LH dash)
• 2000 Chevrolet Tahoe (LH dash)
• 2000 Chevrolet Suburban 1500 & 2500 (LH dash)
• 2000 GMC Yukon (exc. Denali, LH dash)
• 2000 GMC Yukon XL 1500 & 2500 (LH dash)
• 2001 Chevrolet S10 / GMC Sonoma (center dash)
• 2001 Chevrolet Blazer / GMC Jimmy S15 (center dash)
• 2001 Oldsmobile Bravada (center dash)
• 2001 Chevrolet Astro / GMC Safari (LH dash)