Restore Your Vehicle’s Electrical Harmony
Are you battling a storm of bizarre electrical issues in your vehicle? Flickering dashboard lights, power windows with a mind of their own, erratic door locks, or a security system that won’t cooperate are all classic signs of a failing Body Control Module (BCM). This component is the central command for your car’s body electronics, and when it falters, it can make driving a frustrating and unpredictable experience. This isn’t just an inconvenience; it’s a breakdown in your vehicle’s core communication system. But there’s a straightforward, reliable solution.
Common Symptoms & Your Solution
If you’re experiencing issues like interior lights not turning off, horn honking randomly, or even a no-start condition where the engine cranks but won’t fire up, your BCM is the likely culprit. Instead of facing a costly trip to the dealership for diagnostics and programming, you can restore full functionality with this direct-fit Programmed GM Body Control Module 20935349. We take the guesswork and hassle out of the repair by pre-programming the module to your vehicle’s specific Vehicle Identification Number (VIN) before it ever leaves our facility. This ensures seamless integration and communication with your car’s other electronic systems right out of the box.
- ✔ VIN-Programmed for Your Vehicle: Simply provide your VIN during checkout, and this module arrives flashed with the latest GM software updates, ready for installation. This critical step saves you hundreds in dealership programming fees and diagnostic time.
- ✔ Restores Full Electronic Functionality: Regain precise control over your power windows, door locks, interior/exterior lighting, security system, and other essential body functions.
- ✔ No Core Charge Required: Keep your old module without any extra fees or the hassle of shipping a core back. This simplifies the process and saves you money.
- ✔ Broad GM Compatibility: Engineered to function perfectly across a wide range of GM cars, trucks, and SUVs, from a Cadillac STS to a Chevrolet Express van, ensuring OEM-level performance. See our extensive fitment list for confirmation.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
Expert Insight: The BCM as Your Vehicle’s Nervous System
Think of the BCM as the central nervous system for everything that isn’t related to the engine. It takes inputs from dozens of switches (like your window switch or headlight knob) and sensors, and sends commands to the corresponding components. Modern vehicles are incredibly complex, and a generic, non-programmed module simply cannot speak the unique digital language of your car. Our VIN-specific programming for the Programmed GM Body Control Module 20935349 ensures it communicates flawlessly with the Engine Control Module (ECM), transmission controller, and airbag system, preventing a cascade of communication errors and warning lights down the road.
By choosing this pre-flashed module, you’re not just buying a part; you’re buying a complete solution. You’re restoring the reliability and comfort you expect from your vehicle and taking control of the repair process. The installation is straightforward, and while some vehicles may require a simple relearn procedure for certain systems (like the brake pedal position sensor or airbag system), the most complex step—the programming—is already done for you. This is the smartest, most efficient way to solve your vehicle’s electrical gremlins and get back on the road with confidence. Don’t let a faulty BCM dictate your driving experience any longer; install the definitive fix with this Programmed GM Body Control Module 20935349.
Frequently Asked Questions
What exactly does a Body Control Module do?
The Body Control Module, or BCM, is a computer in your vehicle responsible for managing a wide range of non-engine-related electronic functions. This includes power windows, power door locks, interior and exterior lighting, the security system, wipers, and various other comfort and convenience features.
Is this BCM truly plug-and-play?
Because we program the module to your specific VIN before shipping, it is as close to plug-and-play as possible. It eliminates the need for expensive dealer-only programming tools. However, on some models, you may need a qualified technician to perform a simple relearn procedure, such as a ‘Brake Pedal Position Relearn’ or syncing the airbag system (SDM key setup) if the airbag light appears.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your vehicle’s 17-digit VIN. We will provide clear instructions on how to do this. We cannot ship your order until we receive and validate your VIN, as this step is essential to ensure the module works correctly with your vehicle.
What happens if my airbag light comes on after installation?
If the airbag warning light is on after you install the BCM, it means the module needs to be synced with your vehicle’s airbag system. A technician with a professional-grade scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure. This is a standard security sync required on many GM vehicles.
Do I need to send my old BCM back?
No. This product comes with no core charge. You can keep your original module without any additional fees or the need to return it to us.
How can I be sure this part fits my vehicle?
This BCM replaces a long list of original GM part numbers and fits a wide variety of models. Please review the detailed compatibility list on this page or match your original module’s part number to the numbers listed to ensure a perfect fit for your car, truck, or SUV.