Restore Your Vehicle’s Electrical System with a Plug-and-Play BCM
Are you battling frustrating and unpredictable electrical issues in your GM vehicle? Flickering lights, malfunctioning power windows or locks, a security system that acts up, or even a vehicle that refuses to start can all point to a failing Body Control Module (BCM). Don’t let these electrical gremlins disrupt your daily life. This replacement BCM is the reliable, straightforward solution to restore your vehicle’s proper function and your peace of mind.
Common Symptoms & Your Solution
A faulty BCM can cause a wide range of confusing symptoms that seem unrelated. If you’re experiencing any of the following, this module is your answer:
- Erratic behavior from interior/exterior lights, wipers, or horn.
- Power windows, door locks, or remote keyless entry not working correctly.
- Security system warning lights or vehicle failing to start.
- False warnings or inaccurate readings on the instrument cluster.
- Communication error codes (U-codes) stored in the system.
Instead of a costly trip to the dealership for diagnostics and programming, we provide a programmed body control module 20921436 that is flashed with the latest GM software updates specifically for your vehicle’s VIN. This ensures compatibility and proper function right out of the box.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the module using your specific Vehicle Identification Number before it ships, eliminating the need for expensive dealership programming.
- ✔ Simple Installation: Designed for a direct, plug-and-play installation. Simply disconnect the old module and connect this new one.
- ✔ Restored Functionality: Puts an end to the bizarre electrical issues caused by a failing BCM, making your vehicle reliable once again.
- ✔ No Core Charge: You are not required to send your old, faulty module back to us. Keep your original part with no extra fees or hassle.
- ✔ Comprehensive Compatibility: This single module replaces a wide range of original GM part numbers, ensuring a perfect match for your vehicle.
- ✔ Coverage You Can Trust: This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
Why is VIN programming so important? The BCM is the ‘brain’ for your vehicle’s body electronics, managing everything from your power seats to your headlights. Each vehicle has dozens of specific options (like sunroof, premium audio, remote start) that are coded to its VIN. A generic, non-programmed module doesn’t know what options your vehicle has, leading to features not working or persistent error codes. By pre-programming the module to your VIN, we ensure it knows exactly how your vehicle was configured at the factory, guaranteeing a seamless and correct integration.
Installation & Post-Install Notes
After installing your new programmed body control module 20921436, some vehicles may require one or more simple relearn procedures. These are standard industry procedures when replacing a key electronic component.
- 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: In some cases, a brake pedal position sensor recalibration might be necessary to ensure correct brake light and traction control operation.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Guaranteed Fitment For These Part Numbers & Models:
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. It fits a wide variety of GM vehicles, including but not limited to, the Cadillac Escalade, Chevy Tahoe, Suburban, Impala, Express Van, GMC Acadia, Yukon, and Savana Van. Please verify your part number or contact us to confirm fitment.
Frequently Asked Questions
How do I provide my VIN number?
After you complete your purchase, you will need to send us your 17-digit VIN. You can typically add it as a note during checkout or reply to your order confirmation email. We cannot ship the module until we receive your VIN.
Is this a plug-and-play part?
Yes, because we program it to your VIN, it is designed to be plug-and-play. In most cases, you simply install it and the vehicle will function correctly. However, as noted above, some models may require minor relearn procedures for systems like the airbags or brakes.
Do I need to send my old BCM back?
No, there is no core charge for this item. You can keep your original module.
Will this fix my specific problem?
This programmed body control module 20921436 is the solution for a wide range of electrical issues. While we cannot diagnose your vehicle remotely, the symptoms listed above are strong indicators of a BCM failure. We always recommend proper diagnosis by a qualified technician to confirm the BCM is the root cause of your issue.
What tools are needed for installation?
Installation typically requires basic hand tools like a socket set and screwdrivers to access the module’s location (often under the dash or steering column). A professional diagnostic tool may be required for any post-installation relearn procedures.