Restore Full Functionality to Your GM Truck or SUV
Are you battling bizarre electrical problems in your late 90s or early 2000s GM vehicle? Flickering interior lights, a security light that won’t turn off, power windows with a mind of their own, or even a frustrating no-start condition can all point to a single culprit: a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can make your reliable truck feel unpredictable. This direct-fit GM BCM 191583625 is the definitive solution, arriving at your door pre-programmed and ready for installation.
We take the guesswork and high cost out of the repair. Simply provide your vehicle’s VIN during checkout, and our technicians will flash this module with the latest GM-approved software specific to your truck or SUV. This means no expensive trip to the dealership for programming—a savings of both time and money. Get back the reliable performance you depend on.
A Technician’s Notebook
I remember a 1999 Silverado 1500 that came into my bay with a classic case of BCM failure. The owner was at his wit’s end. The radio would turn on and off randomly, the dome light would stay on, and occasionally the truck just wouldn’t crank. He’d already replaced the battery and checked the alternator. After hooking up my scan tool, I saw several U-codes (communication errors) pointing to a network problem. By isolating modules, we confirmed the BCM was the source of the electrical chaos. Installing a VIN-programmed unit like this one resolved all issues in under an hour. It’s a common failure on these otherwise tough trucks, and a programmed module is the most efficient fix.
Is Your Vehicle Showing These Symptoms?
- âś” Erratic or non-functional interior/exterior lights
- âś” Power windows, locks, or mirrors working intermittently or not at all
- âś” The security or anti-theft light stays on, preventing the engine from starting
- âś” Inconsistent or non-working radio and instrument cluster gauges
- âś” False warning messages on the driver information center
- âś” Communication DTCs (Diagnostic Trouble Codes) like U0140, U0155, or other U-codes stored in the system
- âś” Inoperative remote keyless entry (RKE) system
A Straightforward Guide to Installation
- âś” Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- âś” Locate the BCM: On most compatible models (Silverado, Sierra, Astro, Safari), the BCM is located under the driver’s side of the dashboard, to the left of the steering column. On S10, Blazer, and Jimmy models, it’s typically found behind the center of the dash.
- âś” Remove Trim Panels: You may need to remove the lower dash panel or kick panel to gain access. These are usually held in by a few screws or clips.
- âś” Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- âś” Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical harnesses.
- âś” Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—lights, locks, windows, radio, etc.—to confirm the repair.
Important Post-Installation Information
While this BCM is programmed for a plug-and-play installation, certain vehicle systems may require a ‘handshake’ with the new module. Please be aware of the following potential procedures:
- 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: On some models, a brake pedal position sensor recalibration may be needed to ensure correct brake light operation and traction control functionality.
Disclaimer: Specific procedures can vary by exact year, make, and model. We always recommend consulting a factory service manual or a qualified technician for guidance.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 19153625, 8191536250, 16257125, 191583625, 8093668010, 8162571250, 8191536250, and 09366801. It is guaranteed to fit the following vehicles:
- 1998-2000 Chevrolet S10 / GMC Sonoma (center dash, ID 16257125)
- 1998-2000 Chevrolet Blazer S10 / GMC Jimmy S15 (center dash, ID 16257125)
- 2000 Chevrolet Astro / GMC Safari (LH dash)
- 1999-2000 Chevrolet Silverado 1500 / GMC Sierra 1500 (LH dash)
- 1999-2000 Chevrolet Silverado 2500 / GMC Sierra 2500 (LH dash)
- 1998 Oldsmobile Bravada (center dash, w/ extended build date opt ZN4)
- 1999-2000 Isuzu Hombre (LH dash)
Frequently Asked Questions
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module.
Is this part truly plug-and-play?
Yes, it is pre-programmed to your VIN so it can communicate with your vehicle’s other systems. In some cases, as noted above, a simple relearn procedure for the airbag or brake systems may be required using a scan tool.
What information do you need from me?
After you place your order, you must provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). We cannot program and ship the module without it.
Will this fix my security light issue?
In most cases, yes. A faulty BCM is a very common cause of security system problems, including the illuminated security light and no-start conditions on these GM models. This programmed module restores the correct communication.
How do I know if my BCM is bad?
Diagnosing a bad BCM involves checking for the symptoms listed above, like erratic lights and non-functional accessories. A professional diagnosis with a scan tool can confirm communication errors (U-codes) that point directly to the BCM.