Are you battling frustrating electrical gremlins in your GM truck or SUV? Intermittent power windows, a malfunctioning HVAC system, or random warning lights are common signs of a failing Body Control Module (BCM). The BCM acts as the central nervous system for your vehicle’s comfort and convenience features. When it fails, it can cause a wide range of confusing and disruptive problems. This OEM-quality replacement BCM, part number 15198116, is the definitive solution, arriving pre-programmed to your vehicle’s VIN for a true plug-and-play repair.
From the Diagnostic Bay
We had a 2006 Silverado 2500 in the shop where the owner had already replaced the driver’s side window motor twice, but the window would still only work sporadically. He was convinced he kept getting bad parts. After a quick scan, we found several communication DTCs pointing to the BCM. The BCM wasn’t sending a consistent signal to the motor. We installed a VIN-programmed BCM, and the window, along with his intermittent dome light issue, was fixed instantly. It’s a classic case where the root cause isn’t the part that’s obviously failing, but the computer that controls it.
Common Symptoms of a Failing BCM
- ✔ Unresponsive or erratic power windows, door locks, or mirrors.
- ✔ HVAC and climate control systems not working correctly or at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ Airbag warning light illuminated on the dash, often with DTC B1001.
- ✔ Vehicle security system issues, including no-start conditions or false alarms.
- ✔ Wipers behaving erratically or not functioning when commanded.
- ✔ A cluster of seemingly unrelated diagnostic trouble codes (DTCs).
Why Choose Our Programmed Sierra 3500 Body Control Module?
This isn’t just a replacement part; it’s a complete, hassle-free solution. The most critical step in replacing a BCM is programming it to match your vehicle’s specific configuration and VIN. We handle this for you. Before shipping, we load the module with the latest GM software updates for your exact vehicle. This means no expensive trips to the dealership for programming, no special tools required, and no compatibility headaches. It’s designed to restore your truck’s functionality right out of the box.
Installation is straightforward for any DIYer with basic tools. The BCM is typically located under the driver’s side dashboard, near the steering column. Simply disconnect the battery, remove the old module, plug in the new one, and reconnect the battery. While the module is plug-and-play, some vehicles may require a ‘Setup SDM Primary Key in BCM’ procedure with a diagnostic tool if the airbag light remains on. This syncs the new BCM with the airbag system. Additionally, a Brake Pedal Position Relearn may be needed on certain models. Best of all, there is no core charge, so you don’t have to worry about the cost or hassle of sending your old part back.
This module is a direct replacement for a wide range of GM trucks and SUVs from 2002-2007, including the Chevrolet Silverado, Tahoe, Suburban, GMC Sierra, Yukon, Cadillac Escalade, and Hummer H2. It is fully interchangeable with part numbers: 10383536, 15116066, 15136225, 15136877, 15137393, 15137394, 15137395, 15137396, 15198116, 15257043, 15257044, 15257045, 15257046, 10367690, 15064149, and 15194170.
Frequently Asked Questions
Do I need to have this BCM programmed by a dealer?
No. We pre-program the module to your vehicle’s VIN before it ships. It arrives ready for installation, saving you time and money.
Where is the BCM located on my 2005 GMC Sierra?
On most GM trucks and SUVs of this era, including the Sierra, the BCM is located under the driver’s side of the dashboard, typically to the left of the steering column.
What if the airbag light is still on after I install the new BCM?
If the airbag light remains on, your vehicle may require a ‘Setup SDM Primary Key in BCM’ procedure. This requires a professional-grade scan tool to sync the new BCM with the airbag system and is a simple procedure for any qualified technician.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module without any extra fees or the need to return it.
Will this fix my power locks and windows not working?
If the cause of the failure is a faulty BCM, then yes. This module directly controls those functions. A failing BCM is the most common cause for multiple electrical components failing simultaneously.