Restore Your Van’s Electrical System with a Reliable, Programmed BCM
Is your Savana or Express van acting possessed? Flickering lights, malfunctioning power windows, a security light that won’t turn off, or even a frustrating no-start condition can all point to one culprit: a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, when the BCM goes bad, it can create a cascade of confusing and intermittent problems. Stop chasing electrical gremlins and get a definitive solution. This BCM is the reliable fix you need, arriving at your door programmed with the latest GM software specifically for your vehicle’s VIN.
Case Study: A Tricky Diagnosis
I remember a 2011 Express 2500 work van that came into my shop. The owner was at his wit’s end. The radio would turn on and off by itself, the dome lights would stay on, and occasionally the van wouldn’t start, but there was no check engine light. He’d already replaced the battery and checked the main grounds. After hooking up my pro-level scan tool, I saw multiple U-codes (communication codes) pointing to the BCM. These modules are notorious for failing internally, causing data corruption on the CAN bus network. By replacing the faulty unit with a properly programmed 2008-2012 Savana 2500 BCM, we solved all the phantom issues in one shot and got his business back on the road.
What is a Cloning Service?
Our service simplifies your repair. Instead of just sending you a blank module, we take your vehicle’s unique 17-digit VIN and flash this BCM with the correct factory software and calibrations for your specific options. This means you get a module that’s ready for installation, eliminating the need for an expensive trip to the dealership for programming. It’s the most efficient way to get your van running correctly again.
Common Signs of a Failing BCM
- ✔ Intermittent or non-functional power windows, locks, or mirrors.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on/off).
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Security system faults or a persistent anti-theft light.
- ✔ Inaccurate gauge readings on the instrument cluster.
- ✔ Communication error codes, such as U0140, U0155, or other U-codes.
- ✔ A no-start or crank-no-start condition, even with a good battery and starter.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the BCM: On most Savana and Express vans, the BCM is located in the center dash area. You may need to remove a few trim panels to gain access.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. 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 plug in all the electrical connectors. You should hear a ‘click’ as they lock into place.
- ✔ Reconnect Power: Re-attach the negative battery terminal.
- ✔ Perform Relearns: Start the vehicle. Follow the post-installation procedures below if you experience an airbag light or brake system warnings. It’s a good practice to cycle the key a few times and test all body functions (lights, windows, locks).
Important Post-Installation Steps
While we program the module to your VIN, some security and safety systems require a final handshake once installed in the vehicle. This is a normal part of the process.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional bi-directional scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure proper operation of the brake lights and stability control systems.
Will This Fit My Vehicle?
This BCM is a direct replacement for part number 20935349 and is compatible with a wide range of GM vehicles. It interchanges with numerous part numbers, including: 10382479, 15093910, 15819552, 15921352, 20815898, 22860591, 25892622, and many more. It is a verified fit for the following models, among others:
- ACADIA 07-12
- AVALANCHE 1500 10
- CAPRICE 11-13
- CAPTIVA SPORT 12
- CTS 08-13
- DTS 06-11
- ENCLAVE 08-12
- EQUINOX 07-09
- ESCALADE 10
- ESCALADE ESV 10
- ESCALADE EXT 10
- EXPRESS 1500 VAN 08-12
- EXPRESS 2500 VAN 08-12
- EXPRESS 3500 VAN 08-12
- G8 08-09
- HUMMER H2 08-09
- IMPALA 06-13
- LUCERNE 06-11
- MONTE CARLO 06-07
- OUTLOOK 07-10
- SAVANA 1500 VAN 08-12
- SAVANA 2500 VAN 08-12
- SAVANA 3500 VAN 08-12
- SRX 07-09
- STS 10
- SUBURBAN 1500 10
- TAHOE 10
- TORRENT 07-09
- TRAVERSE 09-12
- VUE 08-10
- YUKON 10
- YUKON XL 1500 10
Please provide your VIN upon purchase to ensure we send you a perfectly matched and programmed module.
Frequently Asked Questions
Do I need to send my old BCM in?
No, this is not a repair service for your original module. We send you a replacement BCM programmed to your VIN. Your original module is always returned to you along with the programmed replacement unit; we do not keep the core.
Is this a simple plug-and-play installation?
For most functions, yes. Because we program it to your VIN, it will control the basic body functions immediately. However, as noted, certain safety systems like the airbag (SRS) may require a final sync procedure with a professional scan tool after installation.
Will this fix my ‘Service Theft System’ message?
A faulty BCM is a very common cause of security system issues and false theft warnings. While not a guarantee for every case, replacing a bad BCM often resolves these problems.
What information do you need from me?
After you complete your purchase, we simply need the 17-digit Vehicle Identification Number (VIN) from your van. You can usually find it on your driver’s side dashboard (visible through the windshield) or on the door jamb sticker.
What if I have an airbag light after installing the new 2008-2012 Savana 2500 BCM?
This is a normal security measure. The new BCM needs to be electronically introduced to the vehicle’s airbag control module (SDM). A repair shop or a technician with a bi-directional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to clear the light.