Is Your GMC Savana Experiencing Baffling Electrical Problems?
The Body Control Module, or BCM, is the central command center for your 2008-2012 GMC Savana 1500’s body electronics. It manages a vast array of functions that you rely on every day, from power windows and door locks to interior lighting, security systems, and even communication with other vehicle modules. When the BCM begins to fail, it can create a cascade of frustrating and seemingly unrelated electrical gremlins that can be difficult to diagnose, leaving your reliable work van feeling unpredictable and unsafe.
From the Diagnostic Bay
We had a 2010 Savana 2500 in the shop that was driving the owner crazy. The dome lights would stay on intermittently, the power locks would work one minute and not the next, and occasionally the van wouldn’t start, showing a security light on the dash. The battery and alternator tested fine. After chasing wires and checking grounds, we hooked up our professional scan tool and found multiple communication error codes pointing to the BCM. A replacement, VIN-programmed 2008-2012 Savana 1500 Body Control Module was the solution. Once installed, all the strange electrical issues vanished instantly, and the van was back to being the dependable workhorse it was meant to be.
Symptoms of a Failing Body Control Module
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The vehicle’s security system acting up, preventing the engine from starting (anti-theft light on).
- ✔ Wipers or radio malfunctioning without reason.
- ✔ False warning lights appearing on the instrument cluster.
- ✔ Rapid battery drain while the vehicle is parked.
The Direct-Fit, Programmed Solution
Don’t let a faulty BCM keep your van off the road. This replacement Body Control Module is the definitive solution to restore your vehicle’s electronic systems to factory-perfect operation. We take the guesswork and extra expense out of the repair by pre-programming the module specifically for your vehicle using the VIN you provide. This means it arrives at your door ready for installation, loaded with the latest GM software updates to ensure optimal performance and compatibility. By matching the software to your van’s exact configuration, we eliminate the need for an expensive trip to the dealership for programming.
Installation and Post-Install Considerations
While installation is straightforward for many, some additional steps may be required depending on your vehicle’s specific systems. Please be aware of the following:
- 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 professional-grade scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure proper function of the brake lights and traction control system.
- No Core Charge: We do not require you to send back your old part. There is no core charge associated with this purchase.
Disclaimer: Specific procedures can vary. Always consult a factory service manual or a qualified technician for guidance.
Guaranteed Fitment for a Wide Range of GM Vehicles
This module is a direct replacement for part number 15837419 and is compatible with a large number of GM trucks, vans, and SUVs. Please verify your original part number or consult the fitment list below. This unit 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, and 95151084.
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
No. We handle the programming for you before we ship the part. Simply provide your vehicle’s VIN during or after checkout, and it will arrive ready to be installed, saving you time and money.
What is a Body Control Module (BCM)?
The BCM is a computer in your vehicle that controls and monitors most of the non-engine related electronic accessories, such as lighting, power windows, security systems, and climate controls.
Where is the BCM located on a 2008-2012 Savana 1500?
On the GMC Savana and Chevrolet Express vans of this era, the BCM is typically located in the center dash area, often accessible after removing some of the dash panels.
What happens if I install this without providing a VIN?
We cannot ship the module without your VIN. The programming is essential for the part to function correctly with your van’s specific options and security system. Your order will be held until we receive the VIN.
Will this fix my van’s no-start problem?
If your no-start issue is caused by the factory anti-theft system being triggered by a faulty BCM (often indicated by a security light), then this part is very likely the solution. However, no-start conditions can have many causes, so proper diagnosis is always recommended.