Restore Full Function to Your GM Truck or Van
Are you battling frustrating electrical gremlins in your truck? Flickering lights, power windows with a mind of their own, or a security light that prevents your engine from starting? These are classic signs of a failing Body Control Module (BCM). This vital component is the central nervous system for your vehicle’s body electronics, and when it fails, it can cause a cascade of unpredictable and annoying problems. Get your workhorse back in dependable condition with this direct-fit, pre-programmed BCM, designed to solve these issues for good.
Common Symptoms & Your Solution
A faulty BCM can make your reliable truck feel untrustworthy. If you’re experiencing any of the following, this module is the solution you need:
- Intermittent or non-working power windows, door locks, or interior lights.
- The security or anti-theft light is illuminated, causing a no-start condition.
- Erratic instrument cluster behavior or warning lights.
- Problems with the radio or HVAC controls.
- Communication issues with diagnostic scan tools.
Instead of paying for expensive diagnostics and dealership programming fees, this module arrives ready for installation. We use your vehicle’s VIN to flash the unit with the latest GM software updates, ensuring it communicates perfectly with your truck’s existing systems. This is the most efficient way to replace your failing 2003-2007 Silverado Sierra BCM and get back on the road with confidence.
Features & Benefits
- ✔ VIN-Programmed for Your Truck: No need for a trip to the dealer. This BCM is pre-flashed to your specific vehicle, making installation straightforward.
- ✔ No Core Charge: Keep your old part. The price you see is the price you pay, with no complicated core return process.
- ✔ Solves Common Electrical Faults: Engineered to be a direct, reliable replacement for the original BCM, restoring function to your vehicle’s accessories.
- ✔ Broad Compatibility: Replaces multiple original part numbers, including 15167329, 15194169, 15747545, 15136224, and more, ensuring a perfect match.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
From the Technician’s Bench
As a tech who’s spent years under the dashes of these GMT800 trucks, I’ve seen countless BCM failures. They’re often caused by years of thermal cycling that weakens internal solder joints or, more commonly, water intrusion from a leaking windshield seal that drips directly onto the module. A junkyard BCM is a gamble—it might have the same issues and will still require costly programming. This pre-programmed 2003-2007 Silverado Sierra BCM is the smart repair. It bypasses the dealership hassle and provides a solid part with fresh software, ensuring a lasting fix that gets your truck back to work.
Frequently Asked Questions
What does a BCM do on my Silverado or Sierra?
The Body Control Module (BCM) acts as the main computer for your truck’s non-engine related electronics. It controls functions like power windows, power door locks, interior and exterior lighting, the anti-theft system, radio functions, and instrument cluster warnings.
Is this BCM truly “plug and play”?
Because we program the module to your VIN before shipping, it is as close to “plug and play” as possible. In most cases, you can install it and the vehicle will function correctly. However, as noted in our policies, some vehicles may require a simple relearn procedure for systems like the airbag (SDM) or brake pedal position sensor, which can be done with a capable diagnostic tool.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will provide clear instructions on how to do this. We cannot ship your order until we receive and validate your VIN.
What if my airbag light is on after installation?
If the airbag light is on, it means the new BCM needs to be synchronized with the airbag system’s SDM module. This requires a professional scan tool to perform the “Setup SDM Primary Key in BCM” procedure. This is a standard security procedure on these vehicles.
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep, recycle, or dispose of your original module.
Will this fix my “Service 4WD” message?
While a faulty 2003-2007 Silverado Sierra BCM can cause communication errors that may trigger various warnings, a “Service 4WD” message is most often related to the Transfer Case Control Module (TCCM), the encoder motor, or the switch on the dash. You should diagnose the 4WD system specifically before assuming the BCM is the cause.