Programmed 2001 Silverado 3500 BCM 9375899 | VIN Matched

Restore Your Truck’s Electrical System with a Plug-and-Play Solution

Are you tired of chasing down bizarre electrical problems in your 2001 GM truck? One minute the power windows work, the next they don’t. Maybe your interior lights are flickering, the security light is on for no reason, or the radio is acting possessed. As a technician with over two decades of experience, I can tell you these aren’t separate issues—they’re often symptoms of a single failing component: the Body Control Module (BCM).

The BCM is the central command center for your truck’s body electronics. It manages everything from the power locks and windows to the interior lighting and anti-theft system. When it starts to fail, it can create a cascade of frustrating and seemingly unrelated problems. This replacement 2001 Silverado 3500 BCM is the definitive solution to restore order and reliability to your vehicle’s essential functions.

Is Your Truck Showing These Symptoms?

A failing BCM can manifest in many ways. If you’re experiencing any of the following, this module is likely the cause:

• ✔ Intermittent or non-functional power windows, door locks, or mirrors.
• ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not turning on).
• ✔ The security or anti-theft light staying on, preventing the truck from starting.
• ✔ False warnings on the instrument cluster (e.g., ‘Door Ajar’).
• ✔ HVAC (heater and A/C) controls not responding correctly.
• ✔ Communication error codes like U0140, U0155, or other ‘U’ codes pointing to lost communication with the BCM.

A Straightforward Guide to Installation

We handle the complex programming for you, making the physical installation simple. Just provide your vehicle’s VIN at checkout, and we’ll ship a BCM that’s ready to go. While the process is straightforward, always prioritize safety.

1. Safety First: Disconnect the negative terminal from your truck’s battery to prevent any electrical shorts.
2. Locate the BCM: On most 2001 GM trucks and SUVs, the BCM is located under the driver’s side of the dashboard, to the left of the steering column.
3. Remove Connectors: Carefully unplug the multiple wiring harness connectors from the old BCM. They have locking tabs that need to be depressed.
4. Swap the Module: Unbolt or unclip the old BCM from its mounting bracket and remove it. Install your new, pre-programmed BCM in its place.
5. Reconnect Everything: Plug all wiring harnesses firmly back into the new BCM. Reconnect the negative battery terminal.
6. Post-Installation Checks: Start the vehicle and test all body functions. Note that some vehicles may require the additional procedures outlined below.

Important Post-Installation Information

While this 2001 Silverado 3500 BCM is programmed for your VIN, some vehicle systems may require a ‘handshake’ with the new module. This is normal. If you encounter an airbag light, a ‘Setup SDM Primary Key in BCM’ procedure will be needed using a professional-grade scan tool. Similarly, a Brake Pedal Position relearn might be necessary to ensure brake light and traction control accuracy. There is no core charge, so you can keep your original part.

Will This Fit My Truck?

This module is a direct-fit replacement for several 2001 GM models and part numbers. Please verify your vehicle is on this list and that your original part number is a match.