Restore Your SUV’s Electrical System and Drive with Confidence
Are you battling frustrating electrical gremlins in your GM SUV? Flickering lights, a battery that dies overnight, power windows with a mind of their own, or strange warning lights on the dash are classic signs of a failing Body Control Module (BCM). Don’t let an unreliable vehicle disrupt your life. This fully programmed BCM is the definitive solution to restore your TrailBlazer, Envoy, or Rainier to its dependable, fully-functional state.
Common Symptoms of a Failing BCM & Your Solution
A BCM is the central nervous system for your vehicle’s body electronics. When it fails, it can cause a cascade of confusing and intermittent problems. If you’re experiencing any of the following, a faulty BCM is the likely culprit:
- Intermittent or non-functional power windows, door locks, or interior lights
- Headlights or taillights staying on, or not turning on at all
- Unexplained parasitic battery drain leading to a dead battery
- Erratic instrument cluster behavior or false warning messages
- Security system acting up or preventing the engine from starting
This programmed 25802312 BCM is the direct answer to these issues. We take all the guesswork and hassle out of the replacement process. By programming the module to your vehicle’s specific VIN before we ship, we eliminate the need for an expensive trip to the dealership for coding. This is the most efficient way to get your truck back on the road and working correctly.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: Arrives ready for installation, saving you hundreds in dealership programming fees and diagnostic time.
- ✔ Loaded with Latest GM Software: We flash the module with the newest updates from General Motors, ensuring peak performance and correcting known factory issues.
- ✔ No Core Charge Required: Keep your original module. There are no hidden fees or complicated return processes to worry about.
- ✔ Restores Full Functionality: Get your power accessories, lighting, and security systems working just like they should.
- ✔ Direct-Fit Compatibility: Engineered to match part numbers 25802312, 8258023120, 15135466, and 15787809 for a perfect fit.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty, giving you confidence in your purchase.
Expert Insight from Our Technicians
“The BCM on the GMT360 platform—that’s your TrailBlazer, Envoy, and its cousins—is a known failure point after a decade or so of service. We’ve seen it all: from a simple dome light issue to a complete no-start that leaves owners stranded. In the past, this was a dealer-only repair because of the complex programming involved. By offering a pre-programmed unit, we empower owners and independent shops to perform this critical repair confidently and affordably. This programmed 25802312 BCM isn’t just a part; it’s a complete, modern solution to a common, frustrating problem.”
Post-Installation Procedures
While this module is designed for a straightforward installation, some vehicles may require one or more of the following procedures to finalize the setup. These often require a bi-directional scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: A recalibration of the brake pedal position sensor may be needed on certain models to ensure correct brake light and traction control operation.
Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
Frequently Asked Questions
What exactly does the BCM do?
The Body Control Module is a computer that manages and controls most of your vehicle’s non-engine related electronic functions. This includes power windows, door locks, interior and exterior lighting, the alarm system, and instrument cluster warnings.
Why is providing my VIN so important?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings your specific vehicle needs. This ensures all the options your SUV came with from the factory (like power seats, sunroof, security system, etc.) work correctly right out of the box.
Do I need to send my old BCM back?
No. This product has no core charge. You can keep your old part, which saves you the time, cost, and hassle of packaging and shipping it back to us.
Is this a difficult part to install myself?
For someone with moderate mechanical experience, the physical replacement is fairly simple. The BCM is typically located in or near the under-dash fuse box. The main challenge can be the post-installation relearn procedures, which may require a professional-grade scan tool. If you are not comfortable with vehicle electronics, we recommend professional installation.
What if my airbag light is on after I install it?
This is a common occurrence. The new BCM needs to be electronically ‘introduced’ to the vehicle’s airbag module (SDM). A technician with a capable scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems and turn off the light.
Will this fix my ‘Service 4WD’ light?
While a faulty BCM can cause a variety of electrical issues, a ‘Service 4WD’ message is more commonly related to the Transfer Case Control Module (TCCM), the front axle actuator, or the selector switch. It’s best to have the 4WD system professionally diagnosed before replacing the BCM for that specific issue.