Is Your GM Truck Plagued by Electrical Gremlins?
Are you dealing with frustrating and unpredictable electrical issues in your Silverado, Sierra, S10, or Blazer? One moment the power windows work, the next they don’t. The security light flashes for no reason, or the interior lights have a mind of their own. These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your truck’s body electronics, and when it starts to fail, it can create a cascade of baffling problems. Instead of spending a fortune on diagnostic fees and dealership programming, get the simple, direct-fit solution. This GM Truck Body Control Module arrives at your door pre-programmed to your vehicle’s specific VIN, ready for a straightforward installation.
Common Symptoms of a Failing GM Truck Body Control Module
If you’re experiencing any of the following issues, a failing BCM is the most likely culprit. This module is designed to restore full functionality and eliminate these problems.
- ✔ Intermittent or non-working 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 (VATS/Passlock) stays on, preventing the engine from starting.
- ✔ The horn honks randomly or doesn’t work at all.
- ✔ Inaccurate or dead gauges on the instrument cluster.
- ✔ False warnings on the driver information center.
- ✔ Problems with the keyless entry system.
Plug-and-Play Solution, No Dealer Required
The biggest hurdle in replacing a BCM has always been the expensive and time-consuming programming required at a dealership. We eliminate that step entirely. When you place your order, simply provide us with your vehicle’s 17-digit VIN. Our technicians will flash this module with the latest, most stable software directly from GM for your exact vehicle configuration. This ensures that when the part arrives, it’s ready to be installed and recognized by your truck’s other computer systems. You get a reliable, fully functional component without the hassle and expense of a dealer visit.
Installation and Post-Install Procedures
Installation is typically straightforward, involving disconnecting the battery and swapping the old module with the new one. However, on these specific GM models, a couple of additional steps may be required after the new BCM is installed:
- Airbag System Sync: If your airbag warning light illuminates after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure is needed. This syncs the new BCM with the airbag system and can be performed by any shop with a professional-grade diagnostic tool.
- Brake Pedal Position Relearn: In some cases, a brake pedal position sensor recalibration may be necessary to ensure proper brake light and traction control operation. This is also a quick procedure for a qualified technician.
There is no core charge for this module. You can keep your original part.
Frequently Asked Questions
What does a Body Control Module do?
The BCM is a computer that acts as the central hub for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, the security system, wipers, and the instrument cluster.
Is this BCM difficult to install?
The physical installation is typically simple, as the BCM is usually located under the dash and held in by a few bolts or clips. Because we pre-program the module to your VIN, you avoid the most difficult part—the software setup. Some post-installation relearn procedures may be needed, as noted in the description.
Do I need to send my old BCM back?
No. This part is sold without a core charge, so you are not required to return your original module.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will then program the BCM specifically for your truck before shipping it.
What if my airbag light is on after I install the new BCM?
This is a known possibility. It simply means the new BCM needs to be electronically introduced to the airbag system. A technician with a capable scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems and turn off the light.
Will this part fit my vehicle?
This module fits a wide range of 1998-2000 GM trucks and SUVs, including the S10, Blazer, Sierra, Silverado, and more. It is a direct replacement for part numbers 16257125, 8093668010, 19153625, and others listed in the fitment data. Please verify your part number or contact us with your VIN to confirm compatibility.