Is your 2002 Chevrolet Silverado or GMC Sierra experiencing bizarre electrical problems? The Body Control Module, or BCM, is the central command center for your truck’s body electronics. When it fails, it can cause a cascade of frustrating issues that can be difficult to diagnose. This replacement BCM, part number 19208537, is the definitive solution to restore full functionality to your vehicle’s accessories and security systems.
Unlike other solutions, this BCM arrives at your door pre-programmed to your truck’s specific Vehicle Identification Number (VIN). We handle the complex flashing process for you, loading the latest GM software updates before we ship. This eliminates the need for an expensive trip to the dealership for programming, saving you time and money. Simply provide your VIN after purchase, and we’ll take care of the rest.
Common Symptoms of a Failing 2002 Silverado BCM
If you’re noticing any of the following issues, a faulty Body Control Module is the likely culprit:
- ✔ Erratic or non-functional interior/exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system acting up, or the ‘Security’ light staying illuminated on the dash.
- ✔ The radio or climate controls behaving unpredictably.
- ✔ A persistent battery drain that kills your battery overnight.
- ✔ Diagnostic trouble codes related to U-codes (communication errors) or B-codes (body codes).
This module is a direct replacement for a wide range of GM trucks and SUVs from the era, including part numbers 15063578, 15081796, 15095334, DKAK, and DPNU. By replacing your old, failing unit with our professionally programmed BCM, you can confidently resolve these problems and get your truck back to reliable, everyday operation.
Installation and Post-Install Information
Installation is straightforward, but please be aware of a few potential post-installation procedures. While we program the module to your VIN, your vehicle’s other systems may need to be re-synced with the new BCM.
- Airbag System Sync: If your airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is required. This must be done with a professional-grade scan tool to sync the airbag system with the new BCM.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure proper brake light and traction control operation.
Best of all, there is no core charge for this part. You can keep your original module without the hassle of shipping it back.
Frequently Asked Questions
What does the BCM do on my 2002 Silverado?
The Body Control Module (BCM) acts as the brain for your truck’s electronic accessories. It controls functions like your power windows, door locks, interior and exterior lighting, security system, and radio.
Do I need to program this BCM?
No. We program the module to your vehicle’s VIN before we ship it to you. This ensures it’s ready for installation and has the latest software from GM, saving you a trip to the dealer.
Is this part completely plug-and-play?
It is largely plug-and-play because the main programming is done. However, as with any module replacement, your vehicle may require simple relearn procedures for the airbag system or brake pedal position sensor, which may require a capable scan tool.
How do I provide my VIN number?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship the part until we receive and program it with your VIN.
My airbag light turned on after I installed the BCM. What do I do?
This is normal in some cases. The new BCM needs to be synced with your vehicle’s existing airbag module (SDM). A technician with a professional scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to turn off the light.
Will this BCM fit other vehicles besides the Silverado?
Yes, this BCM is compatible with a wide range of 2002-2005 GM trucks and SUVs, including the Sierra, Tahoe, Yukon, Suburban, Avalanche, Astro, Safari, and S10/Blazer. Please verify your original part number matches one of the numbers listed in the description.