Are you battling bizarre and frustrating electrical problems in your Chevrolet Suburban? One moment the power windows work, the next they don’t. The HVAC blower motor has a mind of its own, and a persistent airbag light stares back at you from the dash. These aren’t isolated issues; they are classic signs of a failing Body Control Module (BCM), the central command center for your vehicle’s electronic accessories.
This OEM-quality replacement BCM, part number 15940214, is the definitive solution to restore order to your vehicle’s electronics. Specifically designed for 2007-2011 GM trucks and SUVs, it arrives at your door fully programmed to your vehicle’s unique VIN. This means no expensive trips to the dealership for programming—it’s a true plug-and-play repair that you can perform in your own driveway.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or won’t turn on at all.
- ✔ HVAC system failures, including an inoperative blower fan or incorrect temperature control.
- ✔ An active airbag warning light, often accompanied by DTC B1001.
- ✔ Malfunctioning security system, leading to no-start conditions or random alarm activation.
- ✔ Wipers that operate intermittently or not at all.
- ✔ A host of communication-related Diagnostic Trouble Codes (DTCs).
Why Choose Our Pre-Programmed Suburban 1500 BCM?
Replacing the BCM shouldn’t be a complicated ordeal. Our process eliminates the most difficult step: the programming. We flash the module with the latest GM software updates specific to your VIN before it ships. This ensures that all electronic systems communicate correctly from the moment you plug it in. This module is a direct replacement for a wide range of part numbers, including 25844480, 25835966, 15926094, 20939137, and more, guaranteeing a perfect fit and function for your Suburban, Tahoe, Silverado, or other compatible GM vehicle.
Installation is straightforward, typically located under the driver’s side dashboard. While it’s a quick swap, be aware of potential post-installation procedures. If the airbag light remains on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key’ function. This syncs the new BCM with the airbag system. In some cases, a ‘Brake Pedal Position Relearn’ may also be necessary. With no core charge, you can complete the repair without the hassle of returning your old part.
Frequently Asked Questions
What does a Body Control Module do on a Suburban?
The BCM acts as the brain for your vehicle’s body electronics. It controls non-engine related functions like your lights, power windows and locks, wipers, security system, and climate controls. When it fails, these systems can behave erratically.
Is this BCM really plug-and-play?
Yes. We pre-program the module to your vehicle’s VIN before shipping. This means it’s ready for installation right out of the box, with no need for additional programming at a dealership, saving you time and money.
What if my airbag light is on after I install the new BCM?
This is a common security feature. If the airbag light is on, you will need a qualified mechanic with a high-level scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM to the airbag system and is a quick procedure.
Do I need to send my old part back?
No, there is no core charge for this part. You can keep your old module without any extra fees or hassle.
How can I be sure this part will fit my vehicle?
This module fits a wide range of 2007-2013 GM trucks and SUVs, including the Suburban 1500. Please verify your part number against the interchange list in the description or contact us with your VIN to confirm perfect fitment.