Restore Control and End Electrical Chaos in Your GM Vehicle
Is your Savana Van or GM truck plagued by bizarre electrical problems? Flickering lights, malfunctioning power windows or locks, a security system that acts up, or even a no-start condition can all point to a single culprit: a failing Body Control Module (BCM). As the central computer for your vehicle’s comfort and security features, when the BCM goes down, it can feel like your vehicle has a mind of its own. This isn’t just an annoyance; it can be a major disruption, especially for a work vehicle like the Savana 3500.
Forget the expensive trip to the dealership and the days of downtime waiting for programming. We offer a direct, reliable solution. This replacement Body Control Module is prepared for your vehicle through our professional cloning service. By transferring the data from your original module to this replacement unit, we ensure it’s a true plug-and-play fix. It arrives at your door ready for installation, with the latest GM software updates, matched specifically to your vehicle’s VIN. This process preserves your key programming and vehicle-specific settings, making the repair process as seamless as possible.
A Technician’s Notebook: The Case of the Haunted Work Van
I remember a 2011 Savana 3500 that came into the shop. The owner, a contractor, was at his wit’s end. The dome lights would stay on, the radio would randomly shut off, and worst of all, the van would intermittently refuse to crank. He’d already replaced the battery and checked the alternator. After hooking up my scan tool, I saw a flurry of communication error codes (U-codes) pointing to the BCM. These modules, often located behind the dash, can be susceptible to moisture or voltage spikes over time. By swapping in a cloned BCM, we had all the electrical gremlins banished and the van back on the job site the same afternoon. It’s a classic failure I’ve seen hundreds of times on these workhorses.
Is Your Vehicle Showing These Symptoms?
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security system alarm sounding unexpectedly or preventing the engine from starting.
- ✔ The radio or instrument cluster randomly turning on and off.
- ✔ Diagnostic Trouble Codes (DTCs) such as U0140, B1001, or other communication errors.
- ✔ A complete no-start or no-crank condition despite a good battery.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait 10-15 minutes to allow the system to fully discharge before beginning work.
- ✔ Locate the BCM: On a 2008-2012 Savana 3500 Van, the BCM is typically located in the center dash area. Access may require removing some dash trim panels. Consult a service manual for your specific model if you’re unsure.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that must be depressed to be released. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all the electrical connectors. You should hear a ‘click’ as they lock into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting) and test all body functions—windows, locks, lights, radio, etc.—to confirm proper operation.
- ✔ Post-Installation Procedures: In some cases, additional steps may be needed. If the airbag light is on, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure. A Brake Pedal Position relearn may also be necessary for certain models.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of General Motors vehicles. Our cloning service ensures it will function correctly in your specific model. Please verify your vehicle is on this list. This unit is compatible with 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, and 95151084.
Note: Compatibility can depend on specific options. Always match your part number or provide your VIN for verification.
Frequently Asked Questions
Frequently Asked Questions
How does the cloning service work?
After your purchase, you will send us your original BCM. We then transfer the critical vehicle-specific data to the replacement module. This makes the new part plug-and-play, avoiding the need for expensive dealership programming. We ship both your original and the newly programmed unit back to you.
Do I need to provide my VIN?
Yes, providing your VIN is essential. We use it to load the latest GM software updates and ensure the base calibration is perfect for your vehicle’s factory options before the cloning process begins.
What if my airbag light comes on after installation?
This is uncommon but can happen. It means the BCM needs to be synced with the airbag system’s Supplemental Deployment Module (SDM). A professional-grade scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure to clear the light.
Is this a difficult part for a DIY mechanic to replace?
For someone with moderate experience, this is very manageable. The main challenge is typically accessing the module’s location within the dash. The installation itself is just a matter of swapping connectors. Our cloning service eliminates the most difficult part: the computer programming.
What is your policy on the old part (core)?
We require your original module to perform the cloning service. It will always be returned to you along with the replacement unit. We do not keep your original part, and there is no separate core charge.