Restore Full Functionality to Your GM Truck or SUV
Are you battling bizarre electrical issues in your 2002 Tahoe or other GM vehicle? Flickering interior lights, power windows with a mind of their own, a security light that won’t turn off, or even a frustrating no-start condition are all classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can turn your reliable truck into a source of daily frustration. This isn’t just an inconvenience; it can impact safety systems and leave you stranded. Stop chasing electrical gremlins and get the definitive, hassle-free solution.
This is a direct-fit replacement BCM, part number 15095334, that arrives at your doorstep fully programmed to your vehicle’s specific VIN. We handle the complex part—flashing the module with the latest, most stable software from GM—so you don’t have to. This means no expensive trips to the dealership for programming, no special scan tools required, and no subscription fees. It’s the most efficient way to get your truck back to 100%.
A Technician’s Notebook: The 2002 Silverado That Wouldn’t Cooperate
I remember a 2002 Silverado 2500 that came into my bay with a laundry list of complaints. The owner said the dome lights would stay on, the radio would randomly shut off, and sometimes the power door locks wouldn’t respond. He’d already replaced the battery and checked all the fuses. After connecting my scanner, I saw a handful of U-codes (communication errors) pointing to the BCM. A failing BCM can corrupt the data bus, causing all sorts of unrelated-looking problems. Swapping in a VIN-programmed BCM like this one resolved every single issue in under an hour. It’s a perfect example of how one component can be the root of so much electrical chaos.
Is Your GM Truck Showing These Symptoms?
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security or anti-theft light is illuminated, preventing the engine from starting.
- ✔ Intermittent operation of the radio or instrument cluster gauges.
- ✔ False warning messages on the driver information center (e.g., “Service 4WD”).
- ✔ Diagnostic Trouble Codes (DTCs) related to communication loss (U-codes) or BCM internal failure.
A Straightforward Guide to Your BCM Installation
Replacing the BCM is a manageable job for a DIYer with basic tools. Our pre-programmed module makes it even simpler. Here’s a general guide:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before starting work.
- Locate the BCM: On most full-size trucks and SUVs like the Tahoe or Silverado, the BCM is located under the driver’s side of the dashboard, near the steering column. On vans like the Astro/Safari or smaller S-10 trucks, it may be behind the center dash panel.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors, ensuring they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, lights, radio, etc.—to confirm the repair.
Important Post-Installation Information
While our BCM is programmed for a plug-and-play experience, some GM vehicles may require a simple relearn procedure to sync with other systems. Please be aware of the following:
- Airbag System Sync: If your airbag warning light is on after installation, a shop with a professional-grade scan tool will need to perform the “Setup SDM Primary Key in BCM” procedure. This is a quick process that syncs the new BCM with the airbag module.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be needed to ensure correct brake light and traction control operation.
Disclaimer: Procedures can vary. Always consult a factory service manual or a qualified technician if you are unsure about any step.
Will This Fit My Vehicle?
This BCM is a direct replacement for part number 15095334 and is also compatible with part numbers 15063578, 15081796, 19208537, DKAK, and DPNU. It fits a wide range of GM models, including:
- Chevrolet: Tahoe, Suburban, Silverado, Avalanche, Blazer, S10, Astro (2002-2005)
- GMC: Yukon, Yukon XL, Sierra, Sierra Denali, Jimmy, Sonoma, Safari (2002-2005)
- Cadillac: Escalade (2002)
Please refer to the detailed fitment list to confirm compatibility with your specific year, model, and options.
Frequently Asked Questions
What does ‘pre-programmed’ actually mean for me?
It means we load your vehicle’s unique Vehicle Identification Number (VIN) and all the correct software options into the BCM before we ship it. This allows the module to communicate correctly with your truck’s other computers right out of the box, saving you from a costly and time-consuming trip to the dealer for programming.
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module, which can be helpful if you ever need to reference its part number.
What tools are required for installation?
Typically, you’ll only need basic hand tools like a socket set and a trim removal tool to access the BCM. No special electronic or programming tools are needed.
Why is my airbag light on after installing the new BCM?
This is a normal security measure on some GM vehicles. The new BCM needs to be electronically ‘introduced’ to the airbag module (SDM). A repair shop can perform the ‘Setup SDM Primary Key in BCM’ procedure with a pro-level scan tool to turn off the light.
Will this fix my vehicle’s security system problem?
In most cases, yes. The BCM is a critical part of the Passlock/Passkey anti-theft system. A faulty BCM is a very common cause of security lights and no-start conditions. This programmed module restores that function correctly.
Is this a new or used part?
This is a high-quality, tested replacement module that has been inspected and prepared to provide reliable, long-term service. It is programmed with the latest GM software to ensure optimal performance.