Are you battling frustrating electrical problems in your 2008-2012 GMC Savana 2500? Issues like malfunctioning power windows, erratic lights, or a dead instrument cluster often point to a single culprit: a failing Body Control Module (BCM). The BCM acts as the central command center for your van’s body electronics, and when it fails, it can cause a wide range of confusing and intermittent symptoms. This direct-fit replacement BCM, part number 20839063, is the definitive solution to restore your vehicle’s electronic systems to perfect working order.
We make the repair process simple. Unlike a trip to the dealership, which involves high costs for parts and programming, our service includes programming the module to your vehicle’s specific VIN before it even ships. This means you receive a part that is ready for installation right out of the box, saving you time, money, and the headache of coordinating with a service center. Simply provide your VIN at checkout, and we’ll handle the rest, loading the latest GM software updates for optimal performance and longevity.
Common Symptoms of a Failing Savana BCM
- ✔ Power windows, mirrors, or door locks working intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or failing to illuminate.
- ✔ The horn sounding unexpectedly or not working when pressed.
- ✔ Instrument panel gauges behaving erratically or going dark.
- ✔ “Service Theft System” or other warning messages appearing on the dashboard.
- ✔ Windshield wipers activating on their own or not responding to the switch.
- ✔ Remote keyless entry failure.
Installation and Post-Install Notes for Your 2008-2012 Savana Body Control Module
This BCM is located in the center dash area of your Savana van. While the physical replacement is straightforward for a DIYer with basic tools, please be aware of potential post-installation procedures. Depending on your vehicle’s specific configuration, some systems may need to be re-synced. This can include an ‘Airbag System Sync’ if the airbag light is on, or a ‘Brake Pedal Position Relearn’ for the traction control system. These procedures typically require a professional-grade diagnostic tool. Always consult a factory service manual for detailed instructions.
This module is a direct replacement for a wide range of part numbers, ensuring broad compatibility. Please verify your part number against the list below:
Replaces 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
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, such as power windows, locks, lights, wipers, and the security system.
Do I need to get this BCM programmed?
No. We handle the programming for you. Just provide your vehicle’s VIN during checkout, and we will program the module with the latest GM software before shipping it to you.
Where is the BCM located on my 2008-2012 Savana Van?
The BCM on this model is typically located behind the center of the dashboard. Access may require removing some dash trim panels.
Will this fix my “Service Theft System” light?
A faulty BCM is a very common cause of a false “Service Theft System” warning. Replacing it with this pre-programmed unit will often resolve that issue.
What if my airbag light comes on after installation?
In some cases, the new BCM needs to be synced with the airbag system (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be performed by a technician with a professional scan tool.
Is there a core charge for this part?
No, there is no core charge. You can keep your original module without needing to send it back.