Are you experiencing frustrating and unpredictable electrical problems in your Chevrolet Tahoe? A faulty Body Control Module (BCM) is often the culprit behind issues like erratic lights, non-responsive power windows and locks, or a malfunctioning security system. Restore your vehicle’s core electronic functions with this OEM-quality Body Control Module, a direct replacement for part number 15136225. This module arrives pre-programmed to your vehicle’s specific VIN, ensuring a seamless, plug-and-play installation without requiring a costly trip to the dealership for programming.
Expert Pro Tip: Before you begin the installation, always disconnect the vehicle’s battery. This crucial step prevents the risk of electrical shorts and helps the vehicle’s systems reset properly once the new BCM is connected. The entire replacement process typically takes less than 15 minutes.
Common Symptoms of a Failing BCM
- ✔ Intermittent or complete loss of interior and exterior lighting.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ HVAC and climate control systems behaving erratically.
- ✔ Airbag warning light illuminated on the dash, often with a B1001 DTC.
- ✔ Vehicle security system faults or a no-start condition.
- ✔ Unexplained battery drain when the vehicle is off.
Why Choose Our Programmed 2003-2006 Tahoe BCM?
This isn’t just a replacement part; it’s a complete solution. The BCM is the central command for your Tahoe’s body electronics. When it fails, it can make your reliable SUV feel possessed. Our module is meticulously prepared with the latest GM software updates based on your VIN, guaranteeing it works correctly right out of the box. It restores communication between critical systems, resolving common diagnostic trouble codes and preventing future electrical headaches. Built to strict OEM standards and backed by a one-year warranty, this module ensures long-term reliability for your daily driver or workhorse vehicle.
Installation is straightforward for any DIYer. The BCM is typically located under the driver’s side dashboard, near the steering column. After swapping the module, some vehicles may require a ‘Setup SDM Primary Key in BCM’ procedure if the airbag light remains on, or a ‘Brake Pedal Position Relearn’. These procedures can be performed with a professional-grade scan tool. With no core charge, you can complete the repair without the hassle of returning your old part.
Frequently Asked Questions
What does a BCM do in a 2003-2006 Chevy Tahoe?
The Body Control Module (BCM) acts as the central computer for your Tahoe’s body electronics. It manages non-engine related functions like your lights, power windows, door locks, security system, wipers, and climate controls.
Do I need to program this BCM?
No. We pre-program the module to your vehicle’s VIN before shipping. This makes it a true plug-and-play solution, saving you the time and expense of a dealership visit for programming.
Where is the BCM located on a 2003-2006 Tahoe?
The BCM is typically found under the driver’s side dashboard, attached to or near the steering column. It’s a black plastic box with several large electrical connectors.
What if my airbag light is on after installing the new BCM?
If the airbag light stays on, it means the new BCM needs to be synced with the airbag’s Sensing and Diagnostic Module (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure using a professional scan tool.
Is there a core charge for this part?
No, there is no core charge. You can keep your old module without any extra fees or hassle.
Will this BCM fit other vehicles like a Silverado or Yukon?
Yes, this module is compatible with a wide range of 2002-2007 GM trucks and SUVs, including the Silverado, Sierra, Suburban, Yukon, Escalade, and Hummer H2. Please check the fitment list to confirm compatibility with your specific model.