End the Electrical Chaos in Your Savana Van
Is your 2008-2012 GMC Savana 1500 acting possessed? Flickering dash lights, power windows with a mind of their own, or a security system that randomly prevents you from starting your workhorse? You’re not alone. These frustrating and often intermittent electrical gremlins are classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your van’s body electronics, and when it starts to go, it can cause a cascade of baffling problems. Don’t let a faulty module disrupt your workday or leave you stranded.
This is your direct, reliable solution: a replacement Body Control Module, part number 15872388, that arrives at your door fully programmed to your van’s specific Vehicle Identification Number (VIN). We handle the complex part for you. Simply provide us with your VIN after purchase, and our technicians will flash the module with the newest, most stable software updates from GM. This ensures seamless integration and restores the proper function of all your vehicle’s accessories and systems, getting you back on the road with confidence.
A Technician’s Notebook: The Case of the Haunted Work Van
I had a 2011 Savana 2500 in the shop that was driving the owner crazy. The radio would turn off, the dome lights would flicker, and occasionally the horn would honk when he used the turn signal. He’d already replaced the battery and checked the main grounds. A deep scan showed a dozen intermittent U-codes (communication errors) pointing to a network problem. In my experience, when you see that many unrelated electrical faults, the BCM is the prime suspect. It’s the traffic cop for all these systems. We swapped in one of our pre-programmed BCMs, and it was an instant fix. All the gremlins vanished. It saved the owner hundreds compared to a dealership visit and got his van back in service the same day.
Is Your GM Vehicle Showing These Symptoms?
- ✔ Erratic or non-working power windows, door locks, or mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security or anti-theft system light is on, causing a no-start condition.
- ✔ Inaccurate or dead gauges on the instrument cluster.
- ✔ The radio or infotainment system behaves erratically.
- ✔ Communication error codes (U-codes) stored in the system, such as U0140, U0155, or U0100.
- ✔ The key fob works intermittently or not at all.
Your Straightforward Installation Guide
Installing your new BCM is a manageable job for a DIYer with basic tools. In most Savana and Express vans, the BCM is located behind the center dash panel.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow capacitors to discharge.
- Access the Module: Carefully remove the trim panels around the center dash and radio to gain access to the BCM. It’s typically mounted to a bracket in this area.
- Disconnect and Remove: Unplug the electrical connectors from the old BCM. They have locking tabs, so be gentle. Then, unbolt the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM onto the bracket and securely plug in all the electrical connectors. You should hear a ‘click’ as they lock into place.
- Final Steps & Relearns: Reassemble your dash panels and reconnect the negative battery terminal. Start the vehicle to confirm function. Note that some vehicles may require post-installation procedures as detailed below.
Important Information After Installation
Because this module is central to many systems, your vehicle may require one or more of the following procedures. This is normal and ensures all related components communicate correctly.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible professional scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be needed to ensure correct brake light operation and to prevent issues with the traction control system.
- No Core Charge: You are not required to send your old module back. There is no core charge or deposit associated with this purchase.
Disclaimer: Vehicle systems vary. Always consult a factory service manual or a certified technician if you are unsure about any step.
Verified Vehicle Compatibility
This Body Control Module is a direct replacement for a wide range of GM vehicles and is guaranteed to fit if your original part number is listed below. It is compatible with the following models and more:
Chevrolet: Avalanche (2010), Caprice (2011-13), Captiva Sport (2012), Equinox (2007-09), Express 1500/2500/3500 Van (2008-12), Impala (2006-13), Monte Carlo (2006-07), Suburban (2010), Tahoe (2010), Traverse (2009-12)
Cadillac: CTS (2008-13), DTS (2006-11), Escalade / ESV / EXT (2010), SRX (2007-09), STS (2010)
Buick: Enclave (2008-12), Lucerne (2006-11)
Pontiac: G8 (2008-09), Torrent (2007-09)
Saturn: Outlook (2007-10), Vue (2008-10)
Hummer: H2 (2008-09)
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
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that manages and controls your vehicle’s body-related electronic accessories. This includes power windows, locks, lights, wipers, the security system, and more. It acts as a central hub, ensuring all these components work together correctly.
Do I need to program this module?
No. This BCM comes pre-programmed to your vehicle’s VIN. You just need to provide us with your VIN during checkout or via message, and we handle all the programming before shipping. This saves you a trip to the dealership and additional costs.
How do I find and provide my VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found on your vehicle’s registration, insurance card, or on a small plate on the driver’s side of the dashboard, visible through the windshield. Please provide this number to us after you complete your purchase.
What if my airbag light is on after installation?
This is a possibility and is part of the vehicle’s security protocol. It means the new BCM needs to be electronically ‘introduced’ to the airbag’s computer (SDM). A professional mechanic with a high-level scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Is there a core charge for this part?
No, there is absolutely no core charge. You can keep your old, original module without any need to return it.