Is Your Truck Plagued by Baffling Electrical Problems?
There’s nothing more frustrating than an unreliable vehicle, especially when it’s your dependable GMC Sierra. If you’re dealing with flickering interior lights, power windows and locks that have a mind of their own, a security light that won’t turn off, or strange behavior from your gauges, the culprit is very likely a failing Body Control Module (BCM). Don’t let these electrical gremlins sideline your truck. This pre-programmed BCM is the straightforward, reliable solution to restore your vehicle’s full functionality and get you back on the road with confidence.
Common Symptoms & Your Solution
A faulty BCM can manifest in numerous ways, often seeming like multiple unrelated issues. If you’re experiencing any of the following, it’s time for a 2002 GMC Sierra 2500 BCM replacement:
- Intermittent or non-working power windows, door locks, or mirrors.
- Interior dome lights or dashboard lights staying on or not working at all.
- The security or anti-theft light is illuminated, potentially causing a no-start condition.
- Erratic or inaccurate gauge readings on your instrument cluster.
- Radio or climate control malfunctions.
- Diagnostic Trouble Codes (DTCs) related to communication or body circuits.
This module is the definitive fix. We take the guesswork out of the repair by flashing the unit with the latest GM software updates, specifically programmed to your truck’s unique Vehicle Identification Number (VIN). This ensures compatibility and proper function of all your vehicle’s specific options right out of the box.
Features & Benefits
- ✔ VIN-Programmed for Your Truck: This module arrives ready for installation. No need for an expensive trip to the dealership for programming—we handle it for you before it ships.
- ✔ Updated GM Software: We flash each unit with the newest stable software from General Motors, ensuring optimal performance and correcting known factory bugs.
- ✔ No Core Charge: Save time and money. You are not required to send your old, faulty module back to us.
- ✔ Direct-Fit Replacement: Engineered to be a perfect match for OEM part numbers including 15063578, 15081796, 15095334, 19208537, and DKAK, guaranteeing a seamless installation.
- ✔ Restore Full Functionality: Get your power accessories, security system, and interior controls working reliably again.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: Why VIN Programming is Non-Negotiable
As a technician, I’ve seen countless people try to save a few dollars by installing a used BCM from a junkyard. On these early 2000s GM trucks, that’s a recipe for disaster. The BCM is the central hub for your truck’s options—keyless entry, power seats, specific lighting packages, and the anti-theft system. Without programming it to your truck’s specific VIN, the BCM won’t know which features your vehicle has. The result? Things simply won’t work, and you’ll likely trigger the anti-theft system, leaving your truck unable to start. Our VIN programming service isn’t just a convenience; it’s the critical step that makes this a true, effective repair.
Frequently Asked Questions
What does the BCM do on my 2002 Sierra 2500?
The Body Control Module (BCM) acts as the central computer for your truck’s body-related electronic accessories. It controls functions like power windows, power door locks, interior and exterior lighting, the anti-theft system, and the instrument panel warnings.
Is this BCM truly ready to install out of the box?
Yes, because we program it to your VIN, it is ready for the main installation. However, as with any BCM replacement on these vehicles, certain systems may require a ‘relearn’ or ‘sync’ procedure with a professional scan tool after installation, such as the airbag (SDM) or brake pedal position sensor, if you see a related warning light.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. We cannot ship your order until we receive this information, as the programming is a required step.
What if my airbag light is on after I install it?
If the airbag warning light appears, it’s not a sign of a faulty part. The new BCM simply needs to be synced with the airbag system’s computer (SDM). This is done via a ‘Setup SDM Primary Key in BCM’ procedure, which must be performed by a qualified shop with a high-level diagnostic tool.
Do I need to send my old BCM back?
No. There is no core charge or requirement to return your original module. You can keep it or dispose of it as you see fit.