Is Your GM Truck Plagued by Electrical Gremlins?
If you’re dealing with bizarre and unpredictable electrical issues in your 1998-2000 GM truck or SUV, a failing Body Control Module (BCM) is the most likely culprit. The BCM acts as the central nervous system for your vehicle’s body electronics, controlling everything from the power windows and door locks to the interior lights and security system. When it starts to fail, it can create a cascade of frustrating problems that seem to have no logical cause. Don’t let a faulty module take control of your truck. This direct-fit, pre-programmed BCM is the definitive solution to restore full functionality and peace of mind.
From the Diagnostic Bay
We had a 1999 Silverado 1500 come into the shop that was driving its owner crazy. The dome light would flicker randomly, the radio would turn on by itself overnight and drain the battery, and the power door locks only worked when they felt like it. The owner had already replaced the battery and checked all the fuses. After a quick scan, we saw several communication error codes pointing to the BCM. We installed one of our VIN-programmed modules, and instantly, all the strange electrical issues were gone. It’s a classic case where the central ‘brain’ for the body electronics goes bad, and replacing the 1998-2000 GM Truck BCM is the only correct fix.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights staying on, not turning on, or flickering.
- ✔ The anti-theft or security light flashing, preventing the engine from starting (Passlock issues).
- ✔ Inaccurate or non-working gauges on the instrument cluster.
- ✔ The radio or climate control system behaving erratically.
- ✔ False warnings on the driver information center.
- ✔ Unexplained battery drain when the vehicle is off.
The Simple, Reliable Solution: VIN-Programmed and Ready to Install
Forget about expensive dealership visits and the hassle of finding a shop that can program a new module. We take the complexity out of the repair. When you order from us, you simply provide your vehicle’s VIN during checkout. Our technicians will then flash this BCM with the latest, most stable software directly from GM, ensuring it is perfectly matched to your truck’s specific options and features. This VIN-programming service makes the installation process as straightforward as possible. For many, it’s a true plug-and-play fix that gets you back on the road quickly.
Important Post-Installation Information
While our programming handles the heavy lifting, some GM vehicles of this era may require a couple of simple relearn procedures after the new 1998-2000 GM Truck BCM is installed. These are standard procedures and can often be performed with a capable diagnostic scan tool.
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed to sync the new BCM with the airbag system. This is a safety measure and is only required if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure proper brake light operation and traction control functionality.
Always consult a factory service manual or a qualified technician for vehicle-specific guidance.
Guaranteed Fitment for the Following Part Numbers and Vehicles:
This module is a direct replacement for part numbers: 19153625, 8191536250, 16257125, 191583625, 8093668010, 8162571250, 09366801. It is guaranteed to fit the following models:
- 1998-2000 Chevrolet S10 / GMC Sonoma
- 1998-2000 Chevrolet Blazer / GMC Jimmy
- 1999-2000 Chevrolet Silverado 1500 / 2500
- 1999-2000 GMC Sierra 1500 / 2500
- 2000 Chevrolet Astro / GMC Safari
- 1998 Oldsmobile Bravada
- 1999-2000 Isuzu Hombre
Frequently Asked Questions
Why do you need my VIN?
Your vehicle’s 17-digit VIN (Vehicle Identification Number) allows us to program the BCM with the exact software and settings for your truck’s specific options, like power windows, keyless entry, and security system. This ensures compatibility and proper function.
Is this part difficult to install?
The physical installation is typically straightforward, involving unplugging the old BCM and plugging in the new one. It’s usually located under the driver’s or center dashboard. However, as noted, some vehicles may require post-installation electronic procedures like an airbag sync or brake sensor relearn.
Will this fix my ‘Security’ light and no-start problem?
Yes, in most cases. The BCM is a critical component of the GM Passlock anti-theft system. A failing BCM is a very common cause of a flashing security light and the resulting no-start condition. This pre-programmed module is designed to resolve that issue.
Do I need to send my old BCM back?
No. This product comes with no core charge. You can keep your original module, which saves you the time and expense of return shipping.
What tools are needed for the post-installation procedures?
The Airbag System Sync and Brake Pedal Position Relearn procedures require a professional-grade bidirectional diagnostic scan tool. Many local repair shops have this equipment if you are unable to perform the procedures yourself.