End the Electrical Headaches in Your GM Truck
Are you dealing with bizarre and frustrating electrical issues in your truck? Flickering lights, power windows and locks with a mind of their own, or a security light that won’t turn off can all point to a failing Body Control Module (BCM). This vital component is the central hub for your truck’s body electronics, and when it fails, it can make your reliable workhorse feel unpredictable. Stop chasing symptoms and replace the core problem with this fully programmed, ready-to-install BCM for your 1999-2000 Sierra 2500 and other compatible GM vehicles.
Common Symptoms & Your Solution
A faulty BCM can cause a wide range of problems that seem unrelated. If you’re experiencing any of the following, this module is the definitive solution you need:
- Intermittent or non-working power windows, door locks, or mirrors.
- Erratic interior or exterior lighting behavior.
- Malfunctioning instrument cluster gauges or warning lights.
- The security or anti-theft system light stays on, potentially causing a no-start condition.
- Problems with the radio or HVAC controls.
Our service provides a reliable, plug-and-play fix. We flash the module with the latest GM software updates using your vehicle’s VIN, ensuring it communicates perfectly with your truck’s other systems right out of the box. This is the most efficient way to get your 1999-2000 Sierra 2500 BCM replaced without expensive dealership intervention.
Features & Tangible Benefits
- ✔ VIN-Programmed for Your Truck: We pre-program the module to your specific VIN, ensuring seamless integration and functionality. No dealer visit required for programming!
- ✔ Simple Plug & Play Installation: Once you receive the module, installation is straightforward. Simply disconnect the old BCM and plug this one in, saving you time and labor costs.
- ✔ No Core Charge: Keep your old part. You won’t have to worry about the hassle or expense of shipping a core back to us.
- ✔ Broad Compatibility: This module replaces a range of part numbers, including 09366801, 16257125, and 19153625, for a wide variety of GM trucks and SUVs.
- ✔ Restored Functionality: Get your truck’s essential features working reliably again, from power accessories to security systems.
- ✔ One-Year Replacement Warranty: This unit is backed by our one-year replacement warranty, giving you confidence in your purchase.
Expert Insight: The Critical Role of VIN Programming
On these late 90s/early 2000s GM platforms, the BCM is more than just a simple controller; it’s a key node in the vehicle’s communication network. It constantly ‘talks’ to the Powertrain Control Module (PCM), the Airbag Module (SDM), and the instrument cluster. Installing a non-programmed BCM from a junkyard can cause a communication breakdown, leading to warning lights, disabled features, or even a no-start condition. Our VIN programming service ensures that your new 1999-2000 Sierra 2500 BCM has the correct digital ‘handshake’ to work perfectly with all your truck’s original components, preserving factory operation and reliability.
Important Post-Installation Information
While this module is designed for a straightforward installation, some vehicles may require additional steps to ensure all systems are synchronized. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary for correct brake light and traction control operation.
Disclaimer: Specific procedures can vary. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
What exactly does the Body Control Module do?
The BCM is a computer that controls and monitors most of your vehicle’s non-engine-related electronic functions. This includes power windows, door locks, interior and exterior lights, the security system, and the instrument panel, making it a critical part of your truck’s daily operation.
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 cannot ship your order until we receive this information, as it is essential for programming the module correctly for your specific vehicle.
Is this a difficult part to install myself?
For someone with basic mechanical skills, the installation is typically straightforward. The BCM is usually located under the driver’s side dashboard. It involves disconnecting the battery, removing a few trim panels, and unplugging the electrical connectors from the old module to swap in the new one. However, if you are not comfortable with this process, we recommend seeking a professional mechanic.
Will this fix my truck’s security light issue?
A faulty BCM is one of the most common causes of a persistent security light and related no-start problems on these GM trucks. Replacing your failing unit with our pre-programmed 1999-2000 Sierra 2500 BCM is a highly effective solution for this specific issue.
What if my airbag light comes on after I install it?
This is not a sign of a defective part. It simply means the new BCM needs to be electronically introduced to your vehicle’s airbag system. A qualified mechanic with a high-level diagnostic tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Is there a core charge for my old part?
No, there is absolutely no core charge. You can keep your old module or dispose of it as you see fit, saving you the time and hassle of a return shipment.