Tired of Chasing Electrical Gremlins in Your GM Truck or Van?
If you’re dealing with flickering lights, power windows with a mind of their own, a security light that won’t turn off, or an intermittent no-start condition, you’re not alone. These frustrating and often unpredictable issues are classic signs of a failing Body Control Module (BCM). As the central computer for your vehicle’s comfort and convenience features, a faulty BCM can make your reliable truck feel possessed. This GM BCM 15095334 is the definitive solution, arriving at your door pre-programmed with the latest GM software specifically for your vehicle’s VIN.
From the Diagnostic Bay: The 2002 Silverado Ghost
A customer brought in his ’02 Silverado 1500 last month with a laundry list of bizarre symptoms. The radio would cut out, the dome light would flicker while driving, and sometimes the power locks wouldn’t respond. He’d already replaced the battery and checked the grounds. After hooking up my scan tool, I saw a slew of communication error codes pointing away from the engine. In my 20+ years of experience, this pattern almost always leads back to one culprit: the BCM. The internal circuits and relays fail over time from heat and vibration. We installed a VIN-programmed module just like this one, and every single electrical issue was resolved instantly. It’s a common failure, but thankfully, it’s a straightforward fix with the right part.
Is Your GM Truck or Van Showing These Signs?
- ✔ Intermittent or non-functional power windows, locks, or mirrors.
- ✔ Flickering or inoperative interior and exterior lights.
- ✔ The security or anti-theft light stays on, preventing the engine from starting.
- ✔ Erratic behavior from the radio or instrument cluster gauges.
- ✔ False warnings on the driver information center (e.g., “Door Ajar”).
- ✔ Complete loss of communication with the BCM, confirmed by a scan tool.
The Dealership-Free Solution
Traditionally, replacing a BCM meant buying the part, installing it, and then having your vehicle towed to a dealership for expensive programming. We eliminate that final, costly step. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash this module with the correct GM software and updates for your specific vehicle. This ensures all factory options your truck came with will work correctly right out of the box. This is the most efficient way to get your vehicle back to perfect working order.
Your Straightforward BCM Installation Guide
Replacing the BCM is a job most DIYers can handle with basic tools. The location varies by model, so confirm if yours is under the steering column or behind the center dash trim.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronics.
- Locate the BCM: On most trucks (Silverado, Sierra, Tahoe, etc.), it’s under the driver’s side dash, near the steering column. On vans (Astro, Safari) and S10/Blazer models, it’s often behind the center dash/radio area.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM and remove it.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all the electrical harnesses. You should hear a ‘click’ as they lock into place.
- Reconnect Battery: Reattach the negative battery terminal.
- CRITICAL Final Steps: After installation, you must perform two key procedures. A ‘Setup SDM Primary Key in BCM’ procedure is required to clear the airbag light. Additionally, a Brake Pedal Position Sensor calibration may be needed. These require a bi-directional scan tool. If you don’t have one, a local repair shop can perform these final steps for you to ensure 100% safety and functionality.
Verified Fitment For Your GM Vehicle
This module is a direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. It is guaranteed to fit the following models:
- Cadillac Escalade (4×2): 2002
- Chevrolet Avalanche 1500 (4×2): 2002
- Chevrolet Astro Van: 2002-2005
- Chevrolet Blazer S10 / GMC Jimmy S15: 2002-2005
- Chevrolet S10 / GMC Sonoma: 2002-2004
- Chevrolet Silverado & GMC Sierra 1500/2500/3500 Pickups: 2002
- Chevrolet Suburban & GMC Yukon XL 1500 (4×2): 2002
- Chevrolet Suburban & GMC Yukon XL 2500: 2002
- Chevrolet Tahoe & GMC Yukon (4×2): 2002
- GMC Safari Van: 2002-2005
- GMC Sierra Denali: 2002
Note: Please match your part number or vehicle in this list to ensure compatibility. If you are unsure, send us your VIN, and we will verify fitment for you.
Frequently Asked Questions About The GM BCM 15095334
What exactly does the Body Control Module do?
The BCM is the computer that controls most of your vehicle’s non-engine related electronic systems. This includes power windows, power locks, interior and exterior lighting, the alarm system, and instrument panel warnings.
Why do you need my VIN number?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the specific software and calibrations for your truck’s exact features and options. This makes the installation process much smoother and ensures everything works as it did from the factory.
Is this part truly plug-and-play?
Because we program it to your VIN, it is about 95% plug-and-play. The core functions will work upon installation. However, for full safety and functionality, post-installation procedures like resetting the airbag system key and calibrating the brake pedal sensor are required with a proper scan tool.
What tools are needed for the post-installation procedures?
You will need a professional-grade, bi-directional scan tool (like a Snap-on, Autel, or a GM Tech 2) to perform the ‘Setup SDM Primary Key’ and ‘Brake Pedal Position Sensor Calibration’ functions. Most DIY code readers cannot perform these tasks.
Can I drive the vehicle without performing the final calibration steps?
While the vehicle may start and run, we strongly advise against it. The airbag light will remain on, meaning the SRS system is disabled. The brake pedal sensor calibration is also a critical safety function. We recommend having these procedures completed by a qualified technician before driving.
Will this fix my ‘Security’ light issue?
Yes, a faulty BCM is one of the most common causes of a persistent ‘Security’ light and a no-start condition on these GM vehicles. Replacing it with this pre-programmed unit will resolve that issue.