Restore Full Electrical Function to Your GM Truck or SUV
Are you battling frustrating electrical gremlins in your 2003-2007 GMC Sierra Denali, Chevrolet Silverado, or Tahoe? Symptoms like flickering lights, unresponsive power windows, erratic HVAC controls, or a persistent airbag light are often caused by 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 create a cascade of confusing and seemingly unrelated issues. This OEM-quality replacement BCM, part number 10383536, is the definitive solution to restore your vehicle’s functionality and peace of mind.
The Plug-and-Play Advantage: VIN-Programmed for Your Vehicle
Don’t waste time and money on a trip to the dealership. We pre-program this module to your vehicle’s specific VIN before it ships. This ensures that it communicates perfectly with your truck’s existing systems right out of the box. The programming includes the latest GM software updates, resolving common factory bugs and ensuring optimal performance. This is a true plug-and-play fix that eliminates the need for expensive dealer-only calibration tools.
Common Symptoms of a Failing GM BCM
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ HVAC blower motor or climate controls not working correctly.
- ✔ Airbag warning light illuminated on the dash, often with DTC B1001.
- ✔ Malfunctioning interior or exterior lights (headlights, taillights, dome light).
- ✔ Vehicle security system issues, including no-start conditions or false alarms.
- ✔ Unexplained battery drain or parasitic draw.
- ✔ Multiple communication-related Diagnostic Trouble Codes (DTCs).
Installation and Post-Install Notes for your 2003-2007 Sierra Denali BCM
Physical installation is straightforward for most DIY mechanics. The BCM is typically located under the driver’s side dashboard, near the steering column. Simply disconnect the battery, remove the old module, and plug in the new one. While the VIN programming handles the majority of the setup, some vehicles may require a simple relearn procedure.
Post-Installation Procedures:
- Airbag System Sync: If your airbag warning light remains 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 relearn may be required to ensure proper brake light and traction control operation.
This module is a direct replacement for multiple part numbers, including 15116066, 15136225, 15198116, 15257043, and 10383536. There is no core charge, so you can keep your old part without any hassle.
Frequently Asked Questions
What does a Body Control Module do on a Sierra Denali?
The BCM acts as the brain for your truck’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, the security system, and the HVAC system.
Is this BCM really plug-and-play?
Yes, it is. We pre-program the module to your vehicle’s VIN, so it’s ready for installation without requiring a trip to the dealer for programming. In some cases, a minor relearn procedure may be needed post-installation.
Where is the BCM located on my 2005 GMC Sierra?
On most 2003-2007 GM trucks and SUVs like the Sierra, Silverado, and Tahoe, the BCM is located under the driver’s side of the dashboard, usually attached to a bracket near the steering column.
Will this fix my airbag light with a B1001 code?
A faulty BCM is a very common cause of an airbag light with code B1001. Replacing it often resolves the issue, but you may need to perform the “Setup SDM Primary Key” procedure with a scan tool to clear the light after installation.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module without any additional fees or hassle.
What vehicles is this BCM compatible with?
This BCM fits a wide range of 2002-2007 GM vehicles, including the Chevrolet Avalanche, Silverado, Suburban, Tahoe, Express; GMC Sierra, Yukon, Savana; Cadillac Escalade; and Hummer H2. Please verify the part number for your specific vehicle.