Are you battling frustrating electrical problems in your 2008-2012 GMC Savana or Chevy Express van? Issues like flickering lights, malfunctioning power windows and locks, or a security system that acts up on its own are often signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a wide range of confusing and intermittent symptoms. This replacement Body Control Module, part number 15921352, is the definitive solution to restore your van’s functionality and reliability.
We take the guesswork and hassle out of the repair. Unlike a generic part from a dealership or salvage yard, this BCM comes fully programmed to your van’s specific Vehicle Identification Number (VIN). Simply provide us with your VIN after purchase, and our technicians will flash the module with the latest GM software updates for your exact vehicle configuration. This ensures a seamless installation process, often eliminating the need for expensive dealer programming.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that flicker, stay on, or don’t turn on at all.
- ✔ Erratic windshield wiper behavior.
- ✔ The security system or alarm randomly activating.
- ✔ Warning lights on the dashboard, such as the airbag or security light.
- ✔ Horn not working or sounding unexpectedly.
- ✔ Communication issues with diagnostic scan tools.
Why Choose Our Programmed Savana 3500 Body Control Module?
This isn’t just a part; it’s a complete, ready-to-install solution. By programming the module to your VIN before shipping, we ensure that it correctly communicates with your van’s other electronic systems, like the Engine Control Module (ECM) and instrument cluster. This direct-fit replacement is designed to meet or exceed original equipment specifications for a dependable, long-lasting repair.
Installation and Post-Install Notes
While installation is straightforward for many, please be aware of potential post-installation procedures. Depending on your specific model and options, some systems may need to be re-synced.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure correct brake light and traction control operation.
This module is a direct replacement for a wide range of part numbers, including: 10382479, 15093910, 15276271, 15819552, 15921352, 20815898, 22860591, 25892622, and many more. Please verify your part number or consult the extensive fitment list to confirm compatibility.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that manages and controls electronic accessories not related to the engine. This includes power windows, locks, lights, wipers, the security system, and more. It acts as the central hub for your vehicle’s comfort and convenience features.
Is this part difficult to install?
For someone with basic mechanical skills, the physical replacement is typically not difficult. The BCM is usually located under the dashboard on the driver’s side or in the center dash area. The main benefit of our service is that the module arrives pre-programmed, which is the most complex part of the job.
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions on how to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive this information, as it is essential for programming the module correctly.
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 for reference or as a backup.
What if my airbag light is on after installation?
This is a known possibility. It means the new BCM needs to be electronically introduced to the airbag’s computer (SDM). A professional mechanic with a high-end diagnostic tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this and turn off the light.
Will this fix all my electrical problems?
This programmed Savana 3500 Body Control Module will resolve issues directly caused by a faulty BCM. However, it will not fix problems related to bad wiring, faulty switches, or failing motors. A proper diagnosis is always recommended before ordering.