If you’re dealing with bizarre electrical issues in your 2000 GMC Yukon XL 2500—like power windows with a mind of their own, flickering interior lights, or a security system that randomly engages—you’ve likely pinpointed the culprit: a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen firsthand how a faulty BCM can turn a reliable truck into a source of daily frustration. This isn’t just an inconvenience; it can affect your vehicle’s security and basic functions.
We offer a dependable and straightforward solution. This Body Control Module, compatible with part number 9385236, is meticulously programmed to your vehicle’s specific Vehicle Identification Number (VIN). We load it with the latest GM software updates before it even leaves our facility. This means you get a component that’s ready to integrate with your truck’s systems, restoring the functionality you’ve been missing without the expensive trip to the dealership for programming.
Common Signs of a Failing BCM
- ✔ Erratic power windows, door locks, or mirrors that work intermittently or not at all.
- ✔ Interior dome lights or dashboard lights staying on and draining your battery.
- ✔ The security system or horn activating without reason.
- ✔ Inconsistent or non-functional radio and climate controls.
- ✔ Communication error codes (often U-codes) when scanned with a diagnostic tool.
- ✔ A no-start condition where the starter doesn’t engage due to a security system fault.
Case Study: The Tahoe That Wouldn’t Sleep
A customer brought in a 2000 Tahoe with a classic BCM failure symptom: the battery was dead every morning. He’d already replaced the battery and alternator. During diagnostics, I noticed the interior lights and ‘Security’ light on the dash would remain dimly lit long after the key was out. This parasitic draw was traced directly to an internally shorted BCM. Installing a VIN-programmed 2000 Yukon XL BCM (the same family of modules) solved the problem instantly. The truck’s systems went to sleep properly, and the battery drain was gone. It’s a textbook example of how this single component governs so many seemingly unrelated functions.
A Straightforward Guide to Installation
For the confident DIYer, replacing the BCM is a manageable job. It’s typically located on the driver’s side, under the dashboard.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On most of these GM trucks and SUVs, the BCM is a black plastic box mounted to a bracket under the driver’s side of the dashboard, near the steering column.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely plug in all the connectors. You should hear a ‘click’ as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test your power accessories—windows, locks, radio, and lights—to ensure proper operation.
Important Post-Installation Steps
In some cases, your vehicle may require additional synchronization procedures after the new BCM is installed. This is normal and ensures all systems communicate correctly.
- Airbag System Sync: If your airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure brake lights and traction control function as intended.
Verified Vehicle Compatibility
This module is a direct-fit replacement for vehicles requiring part number 9385236, 9371990, or 19208539. Please verify the part number on your original module to ensure compatibility.
SILVERADO 2500 PICKUP 00 Body Control (BCM); (LH dash), ID 9385236
S10/S15/SONOMA 01 Body Control (BCM); (center dash)
BLAZER S10/JIMMY S15 01 Body Control (BCM); (center dash), ID 9385236
SAFARI (GMC) 01 Body Control (BCM); (LH dash)
SUBURBAN 1500 00 Body Control (BCM); (LH dash), ID 9385236
YUKON XL 1500 00 Body Control (BCM); (LH dash), ID 9385236
TAHOE 00 Body Control (BCM); (LH dash), ID 9385236
BRAVADA 01 Body Control (BCM); (center dash)
SILVERADO 1500 PICKUP 00 Body Control (BCM); (LH dash), ID 9385236 or 9371990
SUBURBAN 2500 00 Body Control (BCM); (LH dash), ID 9385236
SIERRA 1500 PICKUP 00 Body Control (BCM); (LH dash), ID 9385236 or 9371990
SIERRA 2500 PICKUP 00 Body Control (BCM); (LH dash), ID 9385236
ASTRO 01 Body Control (BCM); (LH dash)
YUKON 00 Body Control (BCM); exc. Denali; (LH dash), ID 9385236
Frequently Asked Questions
Why do you need my VIN number?
Your VIN is essential for programming the BCM with the correct software and vehicle-specific options from GM. This ensures the module communicates properly with your truck’s other computers, like the engine controller and instrument cluster, for a seamless installation.
Is this part difficult for a DIYer to install?
For someone with basic mechanical skills, the physical installation is straightforward. It involves removing a few dash panels and unplugging connectors. The key benefit of our service is that the complex programming is already done, saving you a trip to a mechanic with expensive scan tools.
What if my airbag light is on after I install it?
This can happen occasionally. It means the new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). This requires a professional-grade scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure, which is a quick process for any qualified shop.
Do I have to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.
Will this fix my specific issue?
This 2000 Yukon XL BCM is designed to resolve issues directly controlled by the Body Control Module, such as power accessories, lighting, and security functions. While it corrects the most common electrical gremlins, proper vehicle diagnosis is always recommended to confirm the BCM is the source of the fault before ordering.