Is your GM truck or van suffering from strange electrical problems?
If you’re dealing with flickering lights, malfunctioning power accessories, or a battery that mysteriously drains overnight, a failing Body Control Module (BCM) is the likely culprit. The BCM acts as the central hub for your vehicle’s body electronics, and when it goes bad, it can create a cascade of frustrating and hard-to-diagnose issues. This replacement GM Body Control Module is the reliable, straightforward solution to restore your vehicle’s proper function.
Plug & Play Solution, Programmed to Your VIN
Forget expensive dealership visits and complex programming tools. We simplify the repair process by pre-programming this module to your vehicle’s specific VIN before we ship it to you. This ensures it works correctly with the features and options your vehicle was built with. Just provide your VIN at checkout, and you’ll receive a part that’s ready for installation right out of the box. Plus, there is no core charge, so you can keep your original module.
Common Symptoms of a Failing GM Body Control Module
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ Interior dome lights or exterior lamps staying on, flickering, or failing to illuminate.
- ✔ The horn sounding randomly or not working when pressed.
- ✔ Erratic behavior from the vehicle’s anti-theft or security system.
- ✔ A persistent parasitic battery drain that leads to a dead battery.
- ✔ Windshield wipers activating on their own or not responding to the switch.
- ✔ False warning lights appearing on the instrument cluster.
Important Post-Installation Information
While this module is programmed for a plug-and-play installation, some vehicles may require a simple relearn procedure after the BCM is installed. These are not signs of a defective part but are standard security and safety handshakes between modules.
- Airbag System Sync: If the airbag warning light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be needed to ensure correct brake light and traction control operation.
This module is a direct replacement for part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. It fits a wide range of 2003-2007 GM trucks and vans, including Silverado, Sierra, Express, Savana, and SSR models.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related electronic functions, such as power windows, locks, lights, wipers, security system, and horn.
How do I know if my BCM is the problem?
Common signs include multiple, unrelated electrical issues happening at once, such as power accessories failing and lights acting erratically. A persistent battery drain is also a key indicator. A diagnostic scan by a professional can confirm the failure.
What information do you need to program the module?
We require your vehicle’s 17-digit Vehicle Identification Number (VIN) to program the BCM with the latest GM software and ensure it matches your vehicle’s specific options. Please provide your VIN during or after checkout.
Is this part difficult to install?
For most DIY mechanics, the physical installation is straightforward. The BCM is typically located under the steering column or in the center dash. Since we pre-program the unit, no special tools are needed for the initial installation. However, a professional scan tool may be required for post-installation relearn procedures as noted.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your old module.
What if my airbag light turns on after I install the new BCM?
This is a normal security measure. The new BCM needs to be electronically introduced to the airbag’s Supplemental Deployment Module (SDM). A repair shop with a professional-grade scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.