Restore Full Electrical Function to Your GM Truck or Van
Is your Silverado, Sierra, or Express van plagued by strange electrical issues? Flickering lights, malfunctioning power windows, or a security system that acts on its own are common signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a cascade of frustrating problems. This direct replacement BCM, part number 15198115, is the definitive solution to restore your vehicle’s factory performance and reliability.
The Plug-and-Play Solution: Pre-Programmed for Your Vehicle
Replacing a BCM isn’t as simple as swapping the part. A new module must be programmed to your vehicle’s specific Vehicle Identification Number (VIN) to communicate with other onboard computers. We eliminate this costly and time-consuming step. Simply provide us with your VIN during checkout, and our technicians will flash this module with the latest official GM software specific to your truck or van. It will arrive at your door ready for installation, saving you a trip to the dealership and expensive programming fees.
From the Diagnostic Bay
We had a 2005 Silverado 2500 in the shop that was driving the owner crazy. The dome lights wouldn’t turn off, the radio presets would randomly clear, and the horn would occasionally honk when he used the turn signal. He had already replaced the battery and checked all the fuses. After connecting our diagnostic scanner, we saw multiple communication errors pointing towards the BCM. Instead of a complex wiring chase, we installed a VIN-programmed BCM. The moment it was connected and the battery was re-attached, all the bizarre electrical gremlins vanished. It’s a perfect example of how this single component can be the root of many seemingly unrelated issues.
Common Symptoms of a Failing Sierra 3500 BCM
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic interior or exterior lighting (headlights, taillights, dome lights).
- ✔ Malfunctioning dashboard gauges or warning lights.
- ✔ Security system issues, including false alarms or failure to arm/disarm.
- ✔ Problems with the heating and A/C blower motor controls.
- ✔ Radio or infotainment system malfunctions.
- ✔ A “Service Theft System” message appearing on the dash.
Installation and Post-Install Notes
This BCM is typically located under the steering column on pickup models (Silverado, Sierra) or in the center dash area on van models (Express, Savana). While the physical installation is straightforward for a skilled DIYer or professional technician, a couple of post-installation procedures may be necessary depending on your vehicle’s specific configuration:
- 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’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Relearn: In some cases, a brake pedal position sensor recalibration may be required to ensure proper brake light operation and to satisfy the traction control system.
This module is a direct replacement for a wide range of part numbers, including: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689.
Frequently Asked Questions
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.
What happens if I don’t provide my VIN?
We cannot ship the module without your vehicle’s VIN. The programming is essential for the BCM to function correctly in your specific truck or van. Please provide your 17-digit VIN at checkout or message us after your purchase.
Is this a simple plug-and-play installation?
Yes, for over 95% of vehicles, it is. Because we program it to your VIN, it eliminates the need for dealership programming. However, as noted, some vehicles may require a simple relearn procedure for the airbag or brake pedal sensor, which can be done with a compatible scan tool.
Where is the BCM located on my vehicle?
On most 2003-2007 GM trucks like the Sierra and Silverado, the BCM is located under the driver’s side dashboard, near the steering column. On Express and Savana vans, it is typically found behind the center part of the dash.
Will this fix my specific electrical problem?
This BCM will correct issues directly caused by a faulty module. If you are experiencing several of the symptoms listed above, it is highly likely that the BCM is the culprit. However, we always recommend proper diagnostics to rule out wiring or sensor issues before replacing any computer module.