End Electrical Gremlins and Restore Full Function to Your Truck
Are strange electrical issues making your GM truck, van, or SUV unreliable? From flickering interior lights and unresponsive power windows to a security system that prevents your engine from starting, a failing Body Control Module (BCM) is often the culprit. Itโs the central command center for your vehicle’s comfort and convenience features, and when it fails, it can cause a cascade of frustrating problems. This replacement BCM is the definitive, hassle-free solution to get your vehicle’s electronics working perfectly again, delivered directly to you pre-programmed for your specific vehicle.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty BCM is the likely cause. This module is the direct fix for:
- Power windows, door locks, or mirrors working intermittently or not at all
- Interior dome lights or dashboard lights staying on or not turning on
- The security or anti-theft light flashing, causing a no-start condition
- Erratic or non-functional instrument panel gauges
- Remote keyless entry failing to work
- Horn or radio control issues
Instead of paying for expensive diagnostic time and programming fees at a dealership, this module provides a simple and effective repair. We use your vehicle’s VIN to flash this unit with the latest stable GM software, ensuring it integrates seamlessly with your truck’s existing systems. For anyone needing a reliable 2002 Sierra 3500 BCM, this is the most efficient path to a lasting repair.
Features & Real-World Benefits
- โ VIN-Programmed for You: This module arrives ready for installation right out of the box. No extra steps, no special tools needed for programming.
- โ No Dealership Visit Required: Save hundreds of dollars in dealership labor and programming fees. This is a true DIY-friendly solution.
- โ Fixes Common Electrical Faults: Regain full, reliable control over your windows, locks, lights, security system, and other essential body functions.
- โ Updated GM Software: We flash the module with the newest updates from GM, ensuring optimal performance and reliability beyond the original factory state.
- โ No Core Charge: Keep your old module. There’s no need to worry about the cost or hassle of sending a core back to us.
- โ Guaranteed Compatibility: A direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU.
- โ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
Expert Insight: The BCM’s Critical Role in Your Truck
As a technician, I’ve seen firsthand how a failing BCM can sideline a perfectly good truck. Many owners chase down wiring issues or replace individual switches, only to find the problem is the central module itself. The BCM is the ‘brain’ for all non-engine electronics. It communicates with your key fob, manages the anti-theft system, and tells your windows when to go up and down. When its internal logic fails, the symptoms can seem random and disconnected. Installing a properly programmed 2002 Sierra 3500 BCM doesn’t just fix one problem; it restores the entire electronic nervous system of your vehicle’s cabin, giving you back the reliability you depend on.
Guaranteed Vehicle Fitment
This computer is a confirmed fit for the following part numbers: 15063578, 15081796, 15095334, 19208537, DKAK, DPNU. It is compatible with the makes and models listed below. Please verify your part number or contact us with your VIN to ensure a perfect match.
YUKON 02 Body Control (BCM); (under steering column), 4×2
BLAZER S10/JIMMY S15 02 Body Control (BCM); (center dash), ID 15063578
BLAZER S10/JIMMY S15 03-05 Body Control (BCM); (center dash)
SILVERADO 3500 PICKUP 02 Body Control (BCM); (under steering column)
SIERRA 3500 PICKUP 02 Body Control (BCM); (under steering column)
SIERRA 2500 PICKUP 02 Body Control (BCM); (under steering column)
S10/S15/SONOMA 03-04 Body Control (BCM)
SAFARI (GMC) 02-03 Body Control (BCM); (center dash), ID 15095334
SAFARI (GMC) 04-05 Body Control (BCM); (center dash)
ESCALADE 02 Body Control (BCM); (under steering column), 4×2
SUBURBAN 2500 02 Body Control (BCM); (under steering column)
ASTRO 02-03 Body Control (BCM); (center dash), ID 15063578
SILVERADO 2500 PICKUP 02 Body Control (BCM); (under steering column)
SIERRA 1500 PICKUP 02 Body Control (BCM); (under steering column)
YUKON XL 1500 02 Body Control (BCM); (under steering column), 4×2
AVALANCHE 1500 02 Body Control (BCM); (under steering column), 4×2
BLAZER S10/JIMMY S15 02 Body Control (BCM); (center dash), ID 15085334
SUBURBAN 1500 02 Body Control (BCM); (under steering column), 4×2
YUKON XL 2500 02 Body Control (BCM); (under steering column)
ASTRO 04-05 Body Control (BCM); (center dash)
SAFARI (GMC) 02-03 Body Control (BCM); (center dash), ID 15081796
S10/S15/SONOMA 02 Body Control (BCM); (center dash), ID 15063578
BLAZER S10/JIMMY S15 02 Body Control (BCM); (center dash), ID 15081796
S10/S15/SONOMA 02 Body Control (BCM); (center dash), ID 15095334
S10/S15/SONOMA 02 Body Control (BCM); (center dash), ID 15081796
SAFARI (GMC) 02-03 Body Control (BCM); (center dash), ID 15063578
SIERRA DENALI 02 Body Control (BCM); (under steering column)
SILVERADO 1500 PICKUP 02 Body Control (BCM); (under steering column)
TAHOE 02 Body Control (BCM); (under steering column), 4×2
ASTRO 02-03 Body Control (BCM); (center dash), ID 15095334
Important Post-Installation Information
While this module is designed for a simple installation, some vehicles may require one or two additional steps to fully sync with the vehicle’s systems. Please be aware of the following possibilities:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool. This syncs the new BCM with the airbag module and is only necessary if the light appears.
- Brake Pedal Position Relearn: A brake pedal position sensor recalibration may be needed on some models to ensure proper brake light operation and traction control system performance.
This 2002 Sierra 3500 BCM is the core of the solution, and these additional steps, if needed, are standard procedures for this type of repair.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that controls and monitors a wide range of electronic accessories not related to the engine. This includes power windows, locks, interior and exterior lighting, security systems, wipers, and more.
How do I know if my BCM is failing?
Common signs of a failing BCM include multiple, unrelated electrical issues happening at once. For example, your power locks and dome light might stop working simultaneously. Intermittent problems that come and go are also a strong indicator of a faulty BCM.
Is this part difficult to install?
The physical installation is typically straightforward. The BCM is usually located under the dashboard on the driver’s side. Basic hand tools are all that’s required to disconnect the old unit and plug in the new one. Because we program it beforehand, you avoid the most difficult part of the job.
Where do I provide my VIN?
After you complete your purchase, you will need to send us your vehicle’s 17-digit VIN (Vehicle Identification Number). We cannot program and ship your module without it. You can typically find your VIN on the driver’s side dashboard (visible through the windshield) or on your vehicle’s registration or insurance card.
What happens if my airbag light comes on after installation?
This is not uncommon and is easily resolved. It simply means the new BCM needs to be electronically ‘introduced’ to your vehicle’s airbag module (SDM). A qualified mechanic with a bi-directional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to turn off the light.
Do I need to return my old BCM?
No. This purchase has no core charge. You can keep, discard, or recycle your original module at your convenience.