Restore Full Functionality to Your GM Vehicle
Is your 2008-2012 Savana 2500 or other compatible GM vehicle suffering from strange and unpredictable electrical problems? Issues like flickering lights, malfunctioning power windows and locks, or a security system that acts up are often traced back to a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a cascade of frustrating issues. This replacement Body Control Module, part number 20935349, is the definitive solution to get your vehicle back in perfect working order.
From the Diagnostic Bay
We had a 2011 Express van come into the shop that was a complete electrical nightmare. The dome lights wouldn’t turn off, the driver’s side power window was dead, and the horn would randomly go off. The owner had already replaced the battery and checked all the fuses. After connecting our scan tool, we saw multiple communication loss codes pointing towards the BCM. Instead of sending the owner to a dealership for an expensive replacement and programming session, we installed one of our VIN-programmed modules. In under an hour, every single issue was resolved. It’s a common failure, but with a pre-programmed part, it’s a straightforward fix.
Is Your Savana 2500 Body Control Module Failing?
A faulty BCM doesn’t always fail completely at once. It often starts with intermittent problems that can be difficult to diagnose. If you’re experiencing any of the following, your BCM is the likely culprit. This module is the correct solution for a wide range of GM trucks, vans, and SUVs, restoring the critical functions you rely on every day.
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Interior or exterior lights (headlights, taillights, dome lights) staying on or not turning on.
- ✔ Vehicle security system or keyless entry malfunctioning.
- ✔ Dashboard warning lights appearing for no reason.
- ✔ Wipers or radio behaving erratically.
- ✔ Communication errors with other vehicle modules, leading to a no-start condition.
The Plug-and-Play Solution: No Dealer Visit Required
The biggest challenge with replacing a BCM has always been the need for expensive, dealer-specific programming tools. We eliminate that hassle completely. When you purchase this module, you simply provide us with your vehicle’s 17-digit VIN. Our technicians will then program the unit with the latest GM-certified software specific to your exact vehicle configuration. This ensures that when the BCM arrives, it’s ready for installation right out of the box. You save time, money, and the frustration of scheduling a dealership appointment.
This unit is a direct replacement for a wide array of part numbers, ensuring broad compatibility. Please verify your original part number against the list below:
Compatible Part Numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084
Installation and Post-Install Considerations
Installation is typically straightforward, involving disconnecting the battery, locating the old BCM (often under the dash on the driver’s side or in the center console area), and swapping it with the new, programmed unit. While our programming handles the majority of the setup, some vehicles may require simple relearn procedures after installation:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure may be needed. This requires a professional scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a recalibration of the brake pedal position sensor might be necessary to ensure correct operation of the brake lights and stability control systems.
Please consult a factory service manual or a qualified technician for vehicle-specific instructions.
Frequently Asked Questions
Do I need to send my old BCM back?
No. This purchase comes with no core charge. You can keep your original module, which can be helpful for diagnostic comparison if needed.
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 module until we receive this information, as the programming is specific to your vehicle.
Is this a brand new part?
This is a high-quality, inspected, and tested used OEM part that has been prepared and programmed with the latest software for your vehicle, ensuring reliable performance and perfect fitment.
What tools are required for the installation?
Basic hand tools like a socket set and screwdrivers are usually all that’s needed to physically replace the module. However, as noted, a professional-grade scan tool may be required for post-installation procedures like the airbag system sync on some vehicles.
Will this fix my specific electrical problem?
This module will resolve any issues directly caused by a faulty BCM. The symptoms listed above are the most common indicators. If you are unsure, it is always best to have a professional diagnosis performed by a qualified mechanic before ordering.