Restore Full Electrical Control to Your GM Truck or SUV
Is your Silverado, Sierra, Tahoe, or Yukon plagued by baffling electrical problems? Flickering lights, malfunctioning power windows, a security system with a mind of its own, or a mysterious battery drain are all classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can create a cascade of frustrating and seemingly unrelated issues. This isn’t just an inconvenience; it can affect your vehicle’s safety and reliability.
The Plug-and-Play Solution for Complex Electrical Gremlins
Instead of spending a fortune at the dealership on diagnostics and programming fees, take control of the repair yourself. This replacement GM Body Control Module is the definitive solution to restore your vehicle’s electronic systems to factory-perfect operation. We take the guesswork and hassle out of the process. Before we ship your part, our technicians will program it with the latest GM software updates, specifically flashed to your vehicle’s unique Vehicle Identification Number (VIN). This ensures seamless integration and communication with your vehicle’s other modules, making installation as straightforward as possible.
From the Diagnostic Bay
We had a 2000 GMC Sierra 1500 come into the shop with a classic BCM failure symptom: the owner complained that his battery was dead every morning. He’d already replaced the battery and the alternator. We performed a parasitic draw test and found a significant drain coming from the interior lighting circuit. The dome light would randomly stay on for hours after the truck was shut off. After confirming all door switches were working, we traced the fault directly to an internally shorted BCM. A new, pre-programmed module like this one had him back on the road the same day with no more dead batteries.
Symptoms of a Failing GM Body Control Module
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that won’t turn on or off, or that flicker intermittently.
- ✔ The security system or anti-theft light flashing, causing a no-start condition.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Dashboard warning lights illuminating for no apparent reason.
- ✔ A persistent parasitic battery drain that kills your battery overnight.
- ✔ Wipers operating incorrectly or not parking in the correct position.
Installation and Post-Install Considerations
This module is designed for a direct-fit replacement. Simply locate your original BCM (typically under the driver’s side of the dashboard), disconnect the battery, swap the modules, and reconnect the battery. Because we program it to your VIN, in most cases, it is a plug-and-play installation.
However, depending on your specific vehicle’s configuration, a couple of additional steps, known as relearn procedures, may be necessary. These are not required for every vehicle but are important to be aware of:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This syncs the new BCM with the airbag system and requires a professional-grade scan tool.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control operation, a recalibration of the brake pedal position sensor may be required on some models.
Good News: There is absolutely no core charge for this part. You can keep your old module without the hassle of returning it.
Guaranteed Compatibility
This BCM is a direct replacement for part numbers 9385236, 19208539, and 9371990. It is guaranteed to fit the following vehicles:
- 2000 Chevrolet Silverado 1500/2500
- 2000 GMC Sierra 1500/2500
- 2000 Chevrolet Tahoe & Suburban 1500/2500
- 2000 GMC Yukon & Yukon XL 1500/2500
- 2001 Chevrolet S10 & Blazer
- 2001 GMC Sonoma & Jimmy
- 2001 Oldsmobile Bravada
- 2001 Chevrolet Astro & GMC Safari
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the brain for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, interior and exterior lighting, the security system, wipers, and more.
What is VIN programming and why is it important?
VIN programming loads your vehicle’s specific software and settings onto the BCM. This is critical for the module to communicate correctly with other computers in your vehicle and ensures all features work as intended. We handle this for you before shipping.
Is this part difficult to install?
For someone with basic mechanical skills, the physical installation is straightforward. It typically involves removing a few dash panels to access the old module, unplugging it, and plugging in the new one. The most important part, the programming, is already done for you.
Will I need a mechanic to perform any relearn procedures?
Possibly. While many vehicles will not require any post-installation procedures, functions like the airbag system sync do require a professional scan tool. We recommend being prepared for this possibility.
Where is the BCM located on my 2000 Silverado or Sierra?
On most of the compatible GM trucks and SUVs from this era, the BCM is located under the driver’s side of the dashboard, to the left of the steering column. Always consult a service manual for the exact location on your specific model.