Are you battling bizarre and frustrating electrical problems in your GM vehicle? A failing Body Control Module, or BCM, is often the culprit. As the central nervous system for your car’s comfort and convenience features, a faulty BCM can wreak havoc, causing anything from flickering lights to a complete no-start condition. This replacement Body Control Module is the definitive solution, arriving at your door pre-programmed with the latest GM software specifically for your vehicle’s VIN.
Expert Pro Tip
Expert Pro Tip
Before replacing your BCM, always perform a thorough check of your vehicle’s main power and ground connections, especially the primary ground strap from the battery to the chassis and engine block. A loose or corroded ground can cause voltage drops that mimic the symptoms of a failing BCM, leading to a misdiagnosis. A few minutes with a wrench can save you hundreds of dollars.
Is Your Vehicle Showing These Symptoms?
- ✔ Erratic or non-functional interior/exterior lights
- ✔ Power windows, door locks, or mirrors working intermittently or not at all
- ✔ The security system acting up, or the anti-theft light staying on
- ✔ False warnings appearing on the instrument cluster (e.g., ‘Service Airbag’)
- ✔ Inconsistent A/C and heater blower fan operation
- ✔ Diagnostic scan tools unable to communicate with the BCM
- ✔ Unexplained battery drain when the vehicle is off
Why Choose Our Programmed GM Body Control Module?
This isn’t just a part; it’s a complete, ready-to-install solution. Ordering a GM Body Control Module from a dealership means getting a blank unit, followed by an expensive trip to have it programmed. We eliminate that step. By providing your Vehicle Identification Number (VIN) during checkout, you receive a module that is flashed and updated, making the installation process as seamless as possible. This restores factory functionality without the dealership hassle and cost.
Key Benefits:
- VIN-Programmed: Arrives ready for installation, no dealer visit required for programming.
- No Core Charge: Keep your old part, there’s no need to send it back.
- Latest Software: Flashed with the newest GM updates to ensure optimal performance and fix known bugs.
- Direct-Fit Replacement: Engineered to match the original BCM for a perfect fit and connection.
Installation and Post-Install Notes
While this module is designed for a straightforward installation, some vehicle systems may require a ‘relearn’ or synchronization procedure after the BCM is replaced. This is a normal part of the repair process.
- 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 correct brake light and traction control operation.
We always recommend consulting a factory service manual or a qualified technician for your specific vehicle.
Cross-Reference Part Numbers:
This module is a direct replacement for the following 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
Expert Pro Tip
Before replacing your BCM, always perform a thorough check of your vehicle’s main power and ground connections, especially the primary ground strap from the battery to the chassis and engine block. A loose or corroded ground can cause voltage drops that mimic the symptoms of a failing BCM, leading to a misdiagnosis. A few minutes with a wrench can save you hundreds of dollars.