Restore Full Functionality to Your GM Vehicle’s Electronics
Are you battling frustrating electrical gremlins in your GMC Savana or other GM vehicle? Intermittent power windows, flickering dash lights, a malfunctioning security system, or even a no-start condition can often be traced back to a single component: a failing Body Control Module (BCM). The BCM acts as the central nervous system for your vehicle’s body electronics, and when it starts to fail, it can cause a wide range of confusing and unpredictable problems. This replacement BCM, part number 20935349, is the definitive solution to restore order and reliability to your vehicle’s essential functions.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that won’t turn on or off.
- ✔ The security system acting up, or the horn honking randomly.
- ✔ Inaccurate or dead gauges on the instrument cluster.
- ✔ Communication errors with diagnostic scan tools.
- ✔ Vehicle failing to start, even with a good battery and starter.
- ✔ Warning lights such as the airbag or ABS light staying illuminated.
The Plug-and-Play Savana 1500 Body Control Module Solution
The biggest hurdle in replacing a BCM has always been the need for expensive dealer programming. We eliminate that step entirely. When you purchase this module, simply provide us with your vehicle’s 17-digit VIN. Our technicians will program the BCM with the latest GM software specific to your vehicle’s configuration. This ensures that when the part arrives, it’s ready for installation without needing a trip to the dealership, saving you time and money. This module is a direct replacement for a wide array of original part numbers, including 15819552, 25892622, 22860591, and many more, ensuring broad compatibility across the GM lineup.
Post-Installation Procedures
While this module is programmed for your VIN, some vehicle systems may require a simple relearn procedure after installation. In some cases, the airbag (SRS) light may illuminate. This is resolved by having a qualified technician perform a ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool. Additionally, a ‘Brake Pedal Position Relearn’ may be necessary to ensure proper brake light and traction control operation. Always consult a factory service manual for your specific model’s requirements.
Frequently Asked Questions
What is a Body Control Module (BCM)?
The BCM is a computer in your vehicle that manages and controls electronic body accessories. This includes power windows, locks, lights, wipers, the security system, and more. It’s the ‘brain’ for your vehicle’s comfort and convenience features.
Do I need to get this BCM programmed?
No. We handle the programming for you before we ship the part. Simply provide your vehicle’s VIN during checkout, and the module will arrive ready to be installed.
Is this part difficult to install?
The physical installation is typically straightforward, involving the removal of a few dash panels and disconnecting electrical connectors. For the 2008-2012 Savana 1500, it’s located in the center dash area. However, some post-installation electronic relearn procedures may require a professional scan tool.
What if my airbag light is on after I install it?
This is a normal possibility. The new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). A technician with a capable scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems and turn off the light.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to access the exact factory software and settings for your specific vehicle. Programming the BCM with this information ensures it works correctly with all the options your vehicle was built with.
Will this fit vehicles other than a Savana van?
Yes. This BCM is compatible with a very wide range of GM vehicles, including the Chevy Express, Impala, Tahoe, GMC Acadia, Cadillac DTS, and many others. Please check the detailed fitment list on this page to confirm compatibility with your specific year, make, and model.