Restore Full Electrical Function to Your GM Truck or SUV
Are you battling frustrating electrical gremlins in your Chevrolet Tahoe? Flickering lights, unresponsive power windows, a dead HVAC system, or a security light that won’t turn off are common signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a wide range of confusing and disruptive issues. This genuine OEM-quality BCM, part number 15136877, is the definitive solution for restoring your vehicle’s performance and reliability. It arrives pre-programmed to your vehicle’s specific VIN, ensuring a seamless, plug-and-play installation without a costly trip to the dealership for programming.
Is Your Tahoe Exhibiting These Symptoms?
- ✔ Intermittent or non-working interior and exterior lights.
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ HVAC and climate control functions are unresponsive.
- ✔ The anti-theft or security system prevents the vehicle from starting.
- ✔ Airbag warning light is illuminated, often with a B1001 diagnostic trouble code.
- ✔ Unpredictable warning chimes or dashboard alerts.
- ✔ Communication errors with other vehicle modules when using a scan tool.
The Plug-and-Play Solution: Your 2003-2006 Tahoe BCM
Don’t let a faulty module keep your truck off the road. This replacement BCM is meticulously prepared to match your vehicle’s factory settings. By providing your VIN at checkout, we load the latest GM software directly to the module. This process ensures that all electronic features your vehicle was built with will function correctly immediately after installation. This part is a direct replacement for a wide range of GM part numbers, including 15116066, 15136225, 15198116, and 10383536, guaranteeing a perfect fit for your 2003-2006 Tahoe and many other GM models like the Silverado, Sierra, Suburban, and Escalade.
Installation and Post-Install Considerations
Installation is straightforward for the average DIYer. The BCM is typically located under the driver’s side dashboard, near the steering column. Simply disconnect the negative battery terminal, unplug the electrical connectors from the old BCM, remove it, and install the new one in its place. Reconnect the battery, and you’re ready to go. There is no core charge, so you can keep your old part. In some cases, a post-installation procedure may be needed:
- Airbag System Sync: If the airbag light appears after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool to sync the modules.
- Brake Pedal Position Relearn: Some models may require this relearn procedure to ensure proper brake light and traction control operation.
Frequently Asked Questions
What does a BCM do in my 2003-2006 Tahoe?
The Body Control Module (BCM) acts as the brain for your vehicle’s comfort and convenience electronics. It controls functions like power windows, door locks, interior/exterior lighting, wipers, the security system, and the HVAC blower motor.
Is this BCM ready to install out of the box?
Yes! This module is sold with VIN programming. We flash it with your vehicle’s specific data and the latest GM software before shipping, making it a true plug-and-play part that requires no additional dealer programming.
What if my airbag light is on after installation?
If the airbag light is on, it means the new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the two modules.
How can I be sure my BCM is the problem?
While the symptoms listed are strong indicators, a proper diagnosis with a high-end scan tool is the best way to confirm a faulty BCM. A mechanic can check for specific BCM-related trouble codes and verify communication with the module.
Do I need to send my old part back?
No, there is no core charge or return required for your old module. You can keep it or dispose of it at your convenience.