Tired of Your SUV’s Electrical Gremlins?
Are you battling bizarre and frustrating electrical problems in your GMC Envoy, Chevy Trailblazer, or other GM SUV? One moment the power windows work, the next they don’t. The door locks have a mind of their own, and strange warning lights flicker on the dash. These aren’t just minor annoyances; they’re signs of a failing Body Control Module (BCM), the central command center for your vehicle’s electronics. Driving a vehicle with an unreliable BCM can be stressful and unpredictable. This Programmed 2005-2006 GMC Envoy BCM 25802312 is the definitive, hassle-free solution to restore order and get your truck running right again.
Common Symptoms of a Failing BCM & Your Solution
A faulty BCM can cause a cascade of confusing issues. If you’re experiencing any of the following, a replacement is likely the answer:
- Intermittent or non-working power windows and door locks
- Interior or exterior lights flickering, staying on, or not working at all
- Erratic instrument cluster behavior or warning lights (like ABS or Airbag)
- Problems with the radio or climate control systems
- Vehicle security system randomly activating or failing to arm
- Communication error codes (U-codes) when scanned
Instead of paying for expensive diagnostic time and programming fees at a dealership, this module arrives at your door programmed to your vehicle’s specific VIN. We install the latest software updates from GM, ensuring optimal performance and compatibility. This is the most direct path to solving those electrical headaches and restoring full functionality to your vehicle.
Features & Benefits
- โ Ready for Installation: This BCM is professionally programmed to your vehicle’s VIN before shipping. No extra trips to the dealer for expensive programming are required.
- โ Restores Full Functionality: Puts an end to erratic behavior from your power windows, locks, lighting, and other body electronics.
- โ Updated Software: Flashed with the newest stable software from GM to ensure peak performance and reliability.
- โ No Core Charge: A simple, straightforward purchase. You are not required to send your old, faulty module back to us.
- โ Broad Compatibility: A direct replacement for part numbers 25802312, 8258023120, 15135466, and 15787809.
- โ One-Year Protection: This unit is backed by our one-year replacement warranty, giving you confidence in your repair.
Expert Insight: The Dealership Alternative
For years, replacing a BCM meant your vehicle was stuck at the dealership. The process involved towing your truck in, paying for diagnostics, ordering the part, and then paying significant labor costs for the technician to program the new module with specialized equipment. Our pre-programmed solution completely changes the game. By programming the module to your VIN before we ship, we eliminate the most expensive and inconvenient steps. For a confident DIYer or local mechanic, this turns a multi-day, high-cost repair into a simple component swap, saving you time, money, and a major headache.
Important Post-Installation Information
While this Programmed 2005-2006 GMC Envoy BCM 25802312 is designed for a straightforward installation, some vehicle systems may require a relearn procedure after the BCM is replaced. Please be aware of the following possibilities:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional bi-directional 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 needed to ensure proper brake light operation and traction control function.
Verified Fitment For Your Vehicle
This BCM is a confirmed fit for the following vehicles and options:
- ENVOY 05-09 (w/o security system)
- ENVOY XL 05-06 (w/o security system)
- TRAILBLAZER 05-09 (w/o security system)
- TRAILBLAZER EXT 05-06 (w/o security system)
- RAINIER 05-07 (w/o security system)
- ISUZU ASCENDER 05-08 (w/o security system on 05-07)
- SAAB 9-7X 06-09
Note: For 2005 models, please verify your original BCM has ID 15787809.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that controls and monitors a wide range of electronic accessories not related to the engine. This includes power windows, locks, lighting, wipers, security systems, and more. When it fails, these systems can behave erratically.
Is this BCM truly plug and play?
Yes, for the vast majority of functions. We program it using the VIN you provide, so it’s ready to be installed and communicate with your vehicle’s systems. In some cases, as noted above, specific relearn procedures like for the airbag or brake pedal sensor may be required using a mechanic’s scan tool.
How do I provide my VIN?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your BCM without it, so please provide it promptly to avoid delays.
What if my airbag light is on after installation?
This is a known possibility. It means the new BCM needs to be electronically ‘introduced’ to your vehicle’s existing airbag module (SDM). A qualified technician with a high-end scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Do I need to send my old BCM back?
No. This purchase comes with no core charge. You can keep, recycle, or dispose of your original module at your convenience.
Will this fix other warning lights like my Check Engine light?
This Programmed 2005-2006 GMC Envoy BCM 25802312 is designed to fix issues related to body electronics. It will not fix problems related to the engine or transmission, which are controlled by the Engine Control Module (ECM) or Powertrain Control Module (PCM).