Restore Control and Eliminate Electrical Gremlins
Are you chasing frustrating electrical issues in your GM truck or van? Flickering lights, malfunctioning power windows and locks, or a security system that acts up on its own are classic signs of a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can cause widespread, intermittent problems that are a nightmare to diagnose. This isn’t just an annoyance; it can affect vehicle security and the proper function of safety-related systems. Stop guessing and replace the core component with a reliable, pre-programmed solution.
We take the guesswork and hassle out of the repair. Unlike a generic part from the auto parts store, this 2003-2007 GM BCM arrives at your door ready to install. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash the module with the latest, most stable software directly from GM. This ensures all your vehicle’s specific options are recognized, saving you a costly trip to the dealership for programming.
Case Study: A Tricky Diagnosis
A customer brought in his 2006 Silverado 2500 last month with a list of bizarre symptoms. The radio would turn off randomly, the driver’s side power window worked only when it wanted to, and the dome light would stay on, draining the battery. He’d already replaced the battery and checked all the fuses. After connecting my scan tool, I saw multiple communication loss codes with various modules. In my 20+ years of experience, this pattern almost always points back to a single source of failure: the BCM. We installed one of our VIN-programmed modules, and within an hour, every single issue was resolved. The customer was thrilled to have his reliable work truck back without the dealership price tag.
Is Your GM Truck or Van Showing These Signs?
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that flicker, stay on, or don’t work at all.
- ✔ The security system or keyless entry failing to operate correctly.
- ✔ Horn sounding unexpectedly or not working when pressed.
- ✔ Instrument cluster warning lights (like the airbag light) illuminating for no reason.
- ✔ A no-start condition where the engine cranks but won’t fire due to security system confusion.
A Straightforward Guide to Installation
Replacing the BCM is a manageable job for a confident DIYer or a quick task for any professional. With our pre-programmed module, you skip the hardest part. Follow these general steps to get your vehicle back in top shape.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On most Silverado and Sierra pickups, the BCM is located under the driver’s side of the dashboard, near the steering column. On Express and Savana vans, it’s typically found behind the center dash panel.
- Remove and Replace: Carefully unplug the electrical connectors from the old BCM. They have locking tabs, so be gentle. Unbolt or unclip the old module and install the new one in its place.
- Reconnect Everything: Securely plug all electrical connectors into your new BCM. Reconnect the negative battery terminal.
- Critical Final Steps: After installation, you MUST perform the ‘Setup SDM Primary Key in BCM’ procedure with a compatible high-end scan tool to ensure the airbag system communicates correctly and the warning light turns off. Some vehicles may also require a Brake Pedal Position Sensor recalibration. If you are not equipped to perform these relearn procedures, professional assistance is required to complete the installation safely.
Verified Vehicle Compatibility
This 2003-2007 GM BCM is a direct replacement for a wide range of popular GM trucks and vans. It is compatible with part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. Please verify your part number and check the detailed fitment list below to ensure this is the correct part for your vehicle.
Fits Models Including:
– 2003-2007 Chevrolet Silverado 1500/2500/3500 (exc. Crew Cab, see options)
– 2003-2007 GMC Sierra 1500/2500/3500 (exc. Crew Cab, see options)
– 2003-2007 Chevrolet Express 1500/2500/3500 Van (see options)
– 2003-2007 GMC Savana 1500/2500/3500 Van (see options)
– 2003-2006 Chevrolet SSR
Frequently Asked Questions
What exactly does the Body Control Module do?
The BCM is a computer that supervises most of your vehicle’s non-engine related functions. This includes power windows, locks, lights, wipers, the security system, and the instrument cluster. When it fails, you see a variety of strange electrical problems.
Why do you need my VIN to program the BCM?
Your Vehicle Identification Number (VIN) allows us to flash the BCM with the specific software for your truck or van’s exact features, like keyless entry, power seat options, and lighting packages. This ensures it works correctly right out of the box, just like a part from the factory.
Is this a true plug-and-play installation?
Our programming handles the software side, making it a plug-in replacement. However, as with any BCM replacement on these vehicles, you must perform a security relearn and the ‘Setup SDM Primary Key’ procedure with a scan tool to sync the BCM with the airbag system. This is a mandatory step for safety and full functionality.
Can I install this myself if I don’t have a professional scan tool?
You can physically install the module yourself, which is a great way to save on labor costs. However, you will need to have a qualified mechanic with the proper diagnostic equipment perform the final relearn procedures (airbag and possibly brake pedal sensor) to complete the job.
Will this fix my ‘Service Airbag’ light?
If the light is on due to a communication fault with a bad BCM, this part will resolve the root cause. However, after installation, the ‘Setup SDM Primary Key in BCM’ procedure is still required to clear the light and re-establish communication between the new BCM and the airbag module (SDM).