Restore Full Electrical Control to Your GM SUV
Are you battling frustrating electrical gremlins in your Trailblazer, Envoy, or Rainier? From power windows with a mind of their own to dashboard lights that flicker without reason, a failing Body Control Module (BCM) can turn your reliable SUV into a source of daily frustration. This isn’t just an inconvenience; it’s a breakdown in your vehicle’s central nervous system. We offer a direct, reliable solution: a replacement BCM, professionally programmed to your vehicle’s specific VIN before it ever leaves our facility.
Common Symptoms & Your Solution
A faulty BCM can manifest in numerous ways, often leaving owners and even some mechanics chasing symptoms instead of the root cause. If you’re experiencing any of the following, this module is the definitive fix:
- Erratic or non-functional power windows, door locks, and interior lights.
- Instrument cluster warning lights (like ABS or Airbag) staying on.
- Problems with the radio or climate control system.
- Vehicle security system acting up or preventing the engine from starting.
- Diagnostic Trouble Codes (DTCs) related to component communication (U-codes).
Instead of paying for expensive diagnostic time and dealership programming fees, our programmed 15135466 BCM provides a streamlined path back to full functionality. Simply provide your VIN during checkout, and we handle the complex programming, so you receive a part that’s ready for installation.
Features & Real-World Benefits
- ✔ VIN-Programmed for Your SUV: We flash the module with the latest GM software matched to your vehicle’s VIN. This ensures all factory-installed options work correctly right away, saving you a trip to the dealer.
- ✔ Direct-Fit Replacement: Engineered to be a perfect replacement for part numbers 15135466, 25802312, 8258023120, and 15787809, guaranteeing a perfect fit and connection.
- ✔ No Core Charge: Keep your old BCM. There’s no need to worry about the cost or hassle of sending the original part back to us.
- ✔ Solves Persistent Electrical Issues: This is the core solution for the strange electrical problems that have been plaguing your vehicle, restoring predictable and reliable operation.
- ✔ This unit is backed by our one-year replacement warranty.
Expert Insight: The GMT360 Platform BCM
The GM GMT360 platform (which includes the Trailblazer, Envoy, Rainier, etc.) is known for its durability, but the BCM is a known weak point. Located in the front fuse box, these modules are susceptible to issues from moisture intrusion, voltage spikes, and simple component fatigue over 15+ years of service. Many owners try a used BCM from a salvage yard, only to discover it won’t work without being programmed by a dealer—a service that can cost hundreds. Our programmed 15135466 BCM bypasses this entire ordeal, delivering a cost-effective and dependable repair that a confident DIYer or any independent shop can perform.
Frequently Asked Questions
How does the programming process work?
After you place your order, you must provide us with your vehicle’s 17-digit VIN. Our technicians use this VIN to download the latest, correct software file from GM and flash it directly onto the BCM. This ensures it matches your vehicle’s specific options and configuration before we ship it to you.
Do I need to perform any procedures after installation?
In some cases, yes. The two most common procedures are an Airbag System Sync (if the airbag light comes on) and a Brake Pedal Position Relearn. These may require a professional scan tool to complete and are necessary to ensure all related systems function correctly with the new BCM.
Will this fix my specific electrical problem?
This BCM is the solution for a wide range of common electrical issues found in these vehicles. While we can’t diagnose your vehicle remotely, the symptoms listed above are classic indicators of BCM failure. This programmed 15135466 BCM is the most common and effective repair for these problems.
What vehicles is this compatible with?
This module fits a range of GM SUVs, including the 2005-2007 Buick Rainier, 2005-2009 Chevy Trailblazer & GMC Envoy, 2005-2008 Isuzu Ascender, and 2006-2009 Saab 9-7X. Please verify your part number or consult the detailed fitment list on this page.
What happens if the airbag light is on after I install it?
If the airbag light illuminates, it simply means the new BCM needs to be electronically introduced to the airbag’s SDM (Sensing and Diagnostic Module). A procedure called “Setup SDM Primary Key in BCM” must be performed with a compatible high-level scan tool to sync the modules and turn off the light.