Restore Control and End Electrical Chaos in Your GM Vehicle
Are you chasing electrical gremlins in your work van or truck? Flickering lights, power windows with a mind of their own, a security light that won’t turn off, or a dashboard that lights up with random warnings are all classic signs of a failing Body Control Module (BCM). As the nerve center for your vehicle’s comfort and convenience features, a faulty BCM can make your reliable workhorse feel unpredictable and unsafe. Stop throwing parts at the problem. This is the direct, reliable solution you’ve been looking for.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take a high-quality BCM and program it with the very latest GM software updates, tailored specifically to your vehicle using the VIN you provide. This critical step ensures all onboard systems communicate correctly, restoring full functionality right out of the box. For the hardworking professional or the dedicated DIYer, this means no expensive trip to the dealership for programming and no special tools required for the core of the installation. This is the most efficient way to get your Savana 2500 Van BCM replaced and your vehicle back in service.
A few months back, a 2006 Express 2500 came into my bay. The owner, a plumber, was at his wit’s end. Some days the interior lights wouldn’t turn off, draining the battery. Other days, the power locks would cycle randomly while driving. He’d been to two other shops that couldn’t find the issue because it was so intermittent. After hooking up my scan tool, I saw a slew of U-codes (communication errors) pointing to the BCM. A failing BCM often acts like a bad switchboard operator, sending scrambled signals. We installed a VIN-programmed module, and the van has been fault-free ever since. These intermittent issues are my #1 reason for diagnosing a BCM failure.
Common Signs of a Failing GM BCM
If your vehicle is experiencing any of these symptoms, a failing BCM is the likely culprit. Don’t let these issues sideline your truck or van.
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior dome lights or dashboard lights staying on or not working at all.
- ✔ The security or anti-theft light staying illuminated, potentially causing a no-start condition.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Wipers operating intermittently or not parking in the correct position.
- ✔ Diagnostic Trouble Codes (DTCs) related to communication errors, such as U0140, U0155, or U0164.
- ✔ False warnings on the driver information center (e.g., “Service 4WD”).
Your Straightforward BCM Installation Guide
Installing your new Savana 2500 Van BCM is a manageable job for a DIYer with basic tools. While locations vary slightly between vans (center dash) and trucks (under steering column), the process is similar.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow all modules to power down completely.
- Locate the BCM: On Savana/Express vans, it’s typically located in the center dash area, often accessible by removing a lower dash panel. On Silverado/Sierra pickups, it’s usually mounted to a bracket under the driver’s side of the dashboard, near the steering column.
- Disconnect and Remove: Carefully unplug all electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt the BCM from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors, making sure each one clicks into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting the engine) and test all body functions: lights, windows, locks, wipers, etc.
- Perform Relearns (If Needed): Start the vehicle. If an airbag light or brake-related warning appears, you may need to perform the simple post-install procedures outlined below with a capable scan tool.
Important Post-Installation Notes
While our programming handles the heavy lifting, some vehicle systems may require a final handshake after installation. This is normal. A ‘Brake Pedal Position Relearn’ or an ‘Airbag System Sync’ (Setup SDM Primary Key) might be necessary if related warning lights appear. These procedures require a bi-directional scan tool and are standard practice for any professional technician.
Verified Fitment For These GM Models
This module is a direct replacement for part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. It is guaranteed to fit the following models (please check options carefully):
- GMC Savana / Chevrolet Express 1500, 2500, 3500 Vans (2003-2007): Typically located in the center dash area. Some 2004-2007 models require the ‘without commercial tradesman package’ option.
- GMC Sierra / Chevrolet Silverado 1500, 2500, 3500 Pickups (2003-2007): Fits models excluding Crew Cab. For 2007, fits ‘Classic’ style only (creased door skin). Location is under the steering column.
- Chevrolet SSR (2003-2006): Direct fitment for the Body Control Module.
By purchasing from us, you get a reliable part, expert programming, and the confidence to get the job done right. Restore your vehicle’s proper function and get back on the road. Order your programmed Savana 2500 Van BCM today!
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your BCM until we receive this information, as the programming is specific to your exact vehicle.
Is this truly a plug-and-play part?
Yes, for the vast majority of functions. Our programming handles the security and options configuration. In some cases, as with any BCM replacement, minor relearn procedures like for the brake pedal position sensor or airbag system sync may be needed post-installation if a warning light appears.
Do I need to return my old BCM?
No. There is no core charge for this part. You can keep your original module.
Will this fix my ‘Service 4WD’ message?
A failing BCM is a very common cause for a false ‘Service 4WD’ message on these GM trucks and vans, as it disrupts communication with the transfer case control module. While not a guarantee for every case, replacing a faulty BCM often resolves this issue.
What tools are needed for the post-install procedures?
The ‘Airbag System Sync’ and ‘Brake Pedal Position Relearn’ require a bi-directional professional diagnostic tool. Many independent repair shops have this equipment if you are not equipped to perform these final steps yourself.