Is your 2010 Chevy Suburban 1500 experiencing bizarre electrical problems? Flickering lights, malfunctioning power windows, or random warning messages on your dash are common signs of 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 cause a wide range of frustrating issues. This replacement BCM, part number 20935349, is the definitive solution to restore your truck’s functionality and peace of mind.
We make the replacement process straightforward. Unlike a trip to the dealership, this BCM arrives at your door pre-programmed to your vehicle’s specific VIN. Simply provide us with your VIN after purchase, and our technicians will flash the module with the latest GM software updates, ensuring it’s ready for installation right out of the box. This eliminates the need for expensive programming tools or a costly visit to a mechanic for software setup.
We had a 2010 Suburban 1500 come in that was a true electrical nightmare. The owner reported that the interior lights would stay on, the radio would randomly shut off, and the power locks worked intermittently. He had already replaced two window switches and a battery, with no success. A quick scan showed communication faults across multiple systems, all pointing back to one component. By installing a new, properly programmed BCM, we resolved all of his issues in one go. It wasn’t five different problems; it was one central failure of the original 2010 Suburban Body Control Module.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ The security system engaging randomly or preventing the vehicle from starting.
- ✔ False warning lights on the instrument cluster (e.g., ‘Service Airbag’, ‘Service StabiliTrak’).
- ✔ Intermittent operation of the radio or climate controls.
- ✔ Rapid battery drain while the vehicle is parked.
Installation and Post-Install Notes
Replacing the 2010 Suburban Body Control Module is a manageable task for a skilled DIYer. After installation, some vehicles may require additional relearn procedures. For instance, if the airbag warning light appears, a ‘Setup SDM Primary Key in BCM’ procedure may be needed using a professional scan tool. Similarly, a ‘Brake Pedal Position Relearn’ might be necessary to ensure proper brake light and traction control operation. Always consult a factory service manual for your specific vehicle. Best of all, there is no core charge, so you can keep your original part.
Frequently Asked Questions
What does the Body Control Module do?
The BCM acts as the brain for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, security system, wipers, and various comfort and convenience features.
Is this part truly plug-and-play?
Because we program the module to your VIN before shipping, it is as close to plug-and-play as possible. It bypasses the need for initial programming. However, as noted, some vehicles may require minor relearn procedures for specific subsystems like the airbag or brake sensor after installation.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your BCM without it.
What if my part number isn’t 20935349 but is on the list?
This module is a direct replacement for all part numbers listed in the description. GM often consolidates and supersedes part numbers. As long as your original part number is on our compatibility list, this module will function correctly in your vehicle.
What tools are needed for the post-installation procedures?
Procedures like the ‘Setup SDM Primary Key’ require a high-level, bi-directional diagnostic scan tool. Many local repair shops have this equipment if you are not able to perform the procedure yourself.